mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 11:55:03 +07:00
c2a441fe8f
We have a 1:1 relationship between connectors and encoders, which means we can rely on the drm_atomic_helper_best_encoder() behavior. We still have to explicitly assign ->best_encoder() to drm_atomic_helper_best_encoder(), because the automated fallback to drm_atomic_helper_best_encoder() when ->best_encoder() is NULL is only available when the DRM device is using the atomic helpers, and this bridge is compatible with non-atomic and atomic devices. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1465300095-16971-21-git-send-email-boris.brezillon@free-electrons.com
1843 lines
51 KiB
C
1843 lines
51 KiB
C
/*
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* Copyright (C) 2011-2013 Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Designware High-Definition Multimedia Interface (HDMI) driver
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*
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* Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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*/
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#include <linux/module.h>
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#include <linux/irq.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/clk.h>
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#include <linux/hdmi.h>
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#include <linux/mutex.h>
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#include <linux/of_device.h>
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#include <linux/spinlock.h>
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#include <drm/drm_of.h>
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#include <drm/drmP.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_encoder_slave.h>
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#include <drm/bridge/dw_hdmi.h>
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#include "dw-hdmi.h"
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#include "dw-hdmi-audio.h"
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#define HDMI_EDID_LEN 512
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#define RGB 0
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#define YCBCR444 1
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#define YCBCR422_16BITS 2
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#define YCBCR422_8BITS 3
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#define XVYCC444 4
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enum hdmi_datamap {
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RGB444_8B = 0x01,
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RGB444_10B = 0x03,
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RGB444_12B = 0x05,
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RGB444_16B = 0x07,
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YCbCr444_8B = 0x09,
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YCbCr444_10B = 0x0B,
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YCbCr444_12B = 0x0D,
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YCbCr444_16B = 0x0F,
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YCbCr422_8B = 0x16,
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YCbCr422_10B = 0x14,
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YCbCr422_12B = 0x12,
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};
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static const u16 csc_coeff_default[3][4] = {
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{ 0x2000, 0x0000, 0x0000, 0x0000 },
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{ 0x0000, 0x2000, 0x0000, 0x0000 },
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{ 0x0000, 0x0000, 0x2000, 0x0000 }
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};
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static const u16 csc_coeff_rgb_out_eitu601[3][4] = {
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{ 0x2000, 0x6926, 0x74fd, 0x010e },
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{ 0x2000, 0x2cdd, 0x0000, 0x7e9a },
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{ 0x2000, 0x0000, 0x38b4, 0x7e3b }
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};
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static const u16 csc_coeff_rgb_out_eitu709[3][4] = {
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{ 0x2000, 0x7106, 0x7a02, 0x00a7 },
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{ 0x2000, 0x3264, 0x0000, 0x7e6d },
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{ 0x2000, 0x0000, 0x3b61, 0x7e25 }
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};
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static const u16 csc_coeff_rgb_in_eitu601[3][4] = {
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{ 0x2591, 0x1322, 0x074b, 0x0000 },
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{ 0x6535, 0x2000, 0x7acc, 0x0200 },
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{ 0x6acd, 0x7534, 0x2000, 0x0200 }
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};
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static const u16 csc_coeff_rgb_in_eitu709[3][4] = {
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{ 0x2dc5, 0x0d9b, 0x049e, 0x0000 },
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{ 0x62f0, 0x2000, 0x7d11, 0x0200 },
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{ 0x6756, 0x78ab, 0x2000, 0x0200 }
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};
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struct hdmi_vmode {
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bool mdataenablepolarity;
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unsigned int mpixelclock;
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unsigned int mpixelrepetitioninput;
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unsigned int mpixelrepetitionoutput;
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};
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struct hdmi_data_info {
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unsigned int enc_in_format;
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unsigned int enc_out_format;
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unsigned int enc_color_depth;
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unsigned int colorimetry;
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unsigned int pix_repet_factor;
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unsigned int hdcp_enable;
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struct hdmi_vmode video_mode;
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};
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struct dw_hdmi {
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struct drm_connector connector;
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struct drm_encoder *encoder;
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struct drm_bridge *bridge;
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struct platform_device *audio;
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enum dw_hdmi_devtype dev_type;
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struct device *dev;
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struct clk *isfr_clk;
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struct clk *iahb_clk;
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struct hdmi_data_info hdmi_data;
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const struct dw_hdmi_plat_data *plat_data;
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int vic;
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u8 edid[HDMI_EDID_LEN];
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bool cable_plugin;
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bool phy_enabled;
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struct drm_display_mode previous_mode;
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struct i2c_adapter *ddc;
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void __iomem *regs;
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bool sink_is_hdmi;
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bool sink_has_audio;
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struct mutex mutex; /* for state below and previous_mode */
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enum drm_connector_force force; /* mutex-protected force state */
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bool disabled; /* DRM has disabled our bridge */
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bool bridge_is_on; /* indicates the bridge is on */
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bool rxsense; /* rxsense state */
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u8 phy_mask; /* desired phy int mask settings */
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spinlock_t audio_lock;
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struct mutex audio_mutex;
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unsigned int sample_rate;
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unsigned int audio_cts;
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unsigned int audio_n;
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bool audio_enable;
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void (*write)(struct dw_hdmi *hdmi, u8 val, int offset);
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u8 (*read)(struct dw_hdmi *hdmi, int offset);
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};
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#define HDMI_IH_PHY_STAT0_RX_SENSE \
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(HDMI_IH_PHY_STAT0_RX_SENSE0 | HDMI_IH_PHY_STAT0_RX_SENSE1 | \
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HDMI_IH_PHY_STAT0_RX_SENSE2 | HDMI_IH_PHY_STAT0_RX_SENSE3)
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#define HDMI_PHY_RX_SENSE \
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(HDMI_PHY_RX_SENSE0 | HDMI_PHY_RX_SENSE1 | \
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HDMI_PHY_RX_SENSE2 | HDMI_PHY_RX_SENSE3)
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static void dw_hdmi_writel(struct dw_hdmi *hdmi, u8 val, int offset)
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{
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writel(val, hdmi->regs + (offset << 2));
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}
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static u8 dw_hdmi_readl(struct dw_hdmi *hdmi, int offset)
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{
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return readl(hdmi->regs + (offset << 2));
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}
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static void dw_hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset)
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{
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writeb(val, hdmi->regs + offset);
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}
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static u8 dw_hdmi_readb(struct dw_hdmi *hdmi, int offset)
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{
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return readb(hdmi->regs + offset);
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}
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static inline void hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset)
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{
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hdmi->write(hdmi, val, offset);
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}
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static inline u8 hdmi_readb(struct dw_hdmi *hdmi, int offset)
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{
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return hdmi->read(hdmi, offset);
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}
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static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
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{
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u8 val = hdmi_readb(hdmi, reg) & ~mask;
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val |= data & mask;
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hdmi_writeb(hdmi, val, reg);
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}
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static void hdmi_mask_writeb(struct dw_hdmi *hdmi, u8 data, unsigned int reg,
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u8 shift, u8 mask)
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{
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hdmi_modb(hdmi, data << shift, mask, reg);
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}
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static void hdmi_set_cts_n(struct dw_hdmi *hdmi, unsigned int cts,
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unsigned int n)
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{
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/* Must be set/cleared first */
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hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
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/* nshift factor = 0 */
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hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3);
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hdmi_writeb(hdmi, ((cts >> 16) & HDMI_AUD_CTS3_AUDCTS19_16_MASK) |
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HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
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hdmi_writeb(hdmi, (cts >> 8) & 0xff, HDMI_AUD_CTS2);
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hdmi_writeb(hdmi, cts & 0xff, HDMI_AUD_CTS1);
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hdmi_writeb(hdmi, (n >> 16) & 0x0f, HDMI_AUD_N3);
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hdmi_writeb(hdmi, (n >> 8) & 0xff, HDMI_AUD_N2);
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hdmi_writeb(hdmi, n & 0xff, HDMI_AUD_N1);
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}
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static unsigned int hdmi_compute_n(unsigned int freq, unsigned long pixel_clk)
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{
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unsigned int n = (128 * freq) / 1000;
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unsigned int mult = 1;
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while (freq > 48000) {
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mult *= 2;
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freq /= 2;
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}
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switch (freq) {
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case 32000:
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if (pixel_clk == 25175000)
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n = 4576;
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else if (pixel_clk == 27027000)
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n = 4096;
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else if (pixel_clk == 74176000 || pixel_clk == 148352000)
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n = 11648;
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else
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n = 4096;
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n *= mult;
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break;
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case 44100:
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if (pixel_clk == 25175000)
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n = 7007;
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else if (pixel_clk == 74176000)
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n = 17836;
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else if (pixel_clk == 148352000)
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n = 8918;
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else
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n = 6272;
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n *= mult;
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break;
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case 48000:
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if (pixel_clk == 25175000)
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n = 6864;
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else if (pixel_clk == 27027000)
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n = 6144;
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else if (pixel_clk == 74176000)
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n = 11648;
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else if (pixel_clk == 148352000)
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n = 5824;
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else
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n = 6144;
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n *= mult;
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break;
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default:
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break;
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}
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return n;
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}
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static void hdmi_set_clk_regenerator(struct dw_hdmi *hdmi,
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unsigned long pixel_clk, unsigned int sample_rate)
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{
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unsigned long ftdms = pixel_clk;
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unsigned int n, cts;
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u64 tmp;
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n = hdmi_compute_n(sample_rate, pixel_clk);
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/*
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* Compute the CTS value from the N value. Note that CTS and N
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* can be up to 20 bits in total, so we need 64-bit math. Also
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* note that our TDMS clock is not fully accurate; it is accurate
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* to kHz. This can introduce an unnecessary remainder in the
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* calculation below, so we don't try to warn about that.
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*/
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tmp = (u64)ftdms * n;
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do_div(tmp, 128 * sample_rate);
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cts = tmp;
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dev_dbg(hdmi->dev, "%s: fs=%uHz ftdms=%lu.%03luMHz N=%d cts=%d\n",
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__func__, sample_rate, ftdms / 1000000, (ftdms / 1000) % 1000,
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n, cts);
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spin_lock_irq(&hdmi->audio_lock);
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hdmi->audio_n = n;
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hdmi->audio_cts = cts;
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hdmi_set_cts_n(hdmi, cts, hdmi->audio_enable ? n : 0);
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spin_unlock_irq(&hdmi->audio_lock);
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}
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static void hdmi_init_clk_regenerator(struct dw_hdmi *hdmi)
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{
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mutex_lock(&hdmi->audio_mutex);
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hdmi_set_clk_regenerator(hdmi, 74250000, hdmi->sample_rate);
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mutex_unlock(&hdmi->audio_mutex);
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}
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static void hdmi_clk_regenerator_update_pixel_clock(struct dw_hdmi *hdmi)
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{
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mutex_lock(&hdmi->audio_mutex);
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hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mpixelclock,
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hdmi->sample_rate);
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mutex_unlock(&hdmi->audio_mutex);
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}
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void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate)
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{
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mutex_lock(&hdmi->audio_mutex);
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hdmi->sample_rate = rate;
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hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mpixelclock,
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hdmi->sample_rate);
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mutex_unlock(&hdmi->audio_mutex);
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}
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EXPORT_SYMBOL_GPL(dw_hdmi_set_sample_rate);
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void dw_hdmi_audio_enable(struct dw_hdmi *hdmi)
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{
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unsigned long flags;
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spin_lock_irqsave(&hdmi->audio_lock, flags);
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hdmi->audio_enable = true;
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hdmi_set_cts_n(hdmi, hdmi->audio_cts, hdmi->audio_n);
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spin_unlock_irqrestore(&hdmi->audio_lock, flags);
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}
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EXPORT_SYMBOL_GPL(dw_hdmi_audio_enable);
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void dw_hdmi_audio_disable(struct dw_hdmi *hdmi)
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{
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unsigned long flags;
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spin_lock_irqsave(&hdmi->audio_lock, flags);
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hdmi->audio_enable = false;
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hdmi_set_cts_n(hdmi, hdmi->audio_cts, 0);
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spin_unlock_irqrestore(&hdmi->audio_lock, flags);
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}
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EXPORT_SYMBOL_GPL(dw_hdmi_audio_disable);
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/*
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* this submodule is responsible for the video data synchronization.
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* for example, for RGB 4:4:4 input, the data map is defined as
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* pin{47~40} <==> R[7:0]
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* pin{31~24} <==> G[7:0]
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* pin{15~8} <==> B[7:0]
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*/
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static void hdmi_video_sample(struct dw_hdmi *hdmi)
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{
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int color_format = 0;
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u8 val;
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if (hdmi->hdmi_data.enc_in_format == RGB) {
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if (hdmi->hdmi_data.enc_color_depth == 8)
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color_format = 0x01;
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else if (hdmi->hdmi_data.enc_color_depth == 10)
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color_format = 0x03;
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else if (hdmi->hdmi_data.enc_color_depth == 12)
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color_format = 0x05;
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else if (hdmi->hdmi_data.enc_color_depth == 16)
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color_format = 0x07;
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else
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return;
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} else if (hdmi->hdmi_data.enc_in_format == YCBCR444) {
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if (hdmi->hdmi_data.enc_color_depth == 8)
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color_format = 0x09;
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else if (hdmi->hdmi_data.enc_color_depth == 10)
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color_format = 0x0B;
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else if (hdmi->hdmi_data.enc_color_depth == 12)
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color_format = 0x0D;
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else if (hdmi->hdmi_data.enc_color_depth == 16)
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color_format = 0x0F;
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else
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return;
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} else if (hdmi->hdmi_data.enc_in_format == YCBCR422_8BITS) {
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if (hdmi->hdmi_data.enc_color_depth == 8)
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color_format = 0x16;
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else if (hdmi->hdmi_data.enc_color_depth == 10)
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color_format = 0x14;
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else if (hdmi->hdmi_data.enc_color_depth == 12)
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color_format = 0x12;
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else
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return;
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}
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val = HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_DISABLE |
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((color_format << HDMI_TX_INVID0_VIDEO_MAPPING_OFFSET) &
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HDMI_TX_INVID0_VIDEO_MAPPING_MASK);
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hdmi_writeb(hdmi, val, HDMI_TX_INVID0);
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/* Enable TX stuffing: When DE is inactive, fix the output data to 0 */
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val = HDMI_TX_INSTUFFING_BDBDATA_STUFFING_ENABLE |
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HDMI_TX_INSTUFFING_RCRDATA_STUFFING_ENABLE |
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HDMI_TX_INSTUFFING_GYDATA_STUFFING_ENABLE;
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hdmi_writeb(hdmi, val, HDMI_TX_INSTUFFING);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA0);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA1);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA0);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA1);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA0);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA1);
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}
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static int is_color_space_conversion(struct dw_hdmi *hdmi)
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{
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return hdmi->hdmi_data.enc_in_format != hdmi->hdmi_data.enc_out_format;
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}
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static int is_color_space_decimation(struct dw_hdmi *hdmi)
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{
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if (hdmi->hdmi_data.enc_out_format != YCBCR422_8BITS)
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return 0;
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if (hdmi->hdmi_data.enc_in_format == RGB ||
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hdmi->hdmi_data.enc_in_format == YCBCR444)
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return 1;
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return 0;
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}
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static int is_color_space_interpolation(struct dw_hdmi *hdmi)
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{
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if (hdmi->hdmi_data.enc_in_format != YCBCR422_8BITS)
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return 0;
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if (hdmi->hdmi_data.enc_out_format == RGB ||
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hdmi->hdmi_data.enc_out_format == YCBCR444)
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return 1;
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return 0;
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}
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static void dw_hdmi_update_csc_coeffs(struct dw_hdmi *hdmi)
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{
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const u16 (*csc_coeff)[3][4] = &csc_coeff_default;
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unsigned i;
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u32 csc_scale = 1;
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if (is_color_space_conversion(hdmi)) {
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if (hdmi->hdmi_data.enc_out_format == RGB) {
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if (hdmi->hdmi_data.colorimetry ==
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HDMI_COLORIMETRY_ITU_601)
|
|
csc_coeff = &csc_coeff_rgb_out_eitu601;
|
|
else
|
|
csc_coeff = &csc_coeff_rgb_out_eitu709;
|
|
} else if (hdmi->hdmi_data.enc_in_format == RGB) {
|
|
if (hdmi->hdmi_data.colorimetry ==
|
|
HDMI_COLORIMETRY_ITU_601)
|
|
csc_coeff = &csc_coeff_rgb_in_eitu601;
|
|
else
|
|
csc_coeff = &csc_coeff_rgb_in_eitu709;
|
|
csc_scale = 0;
|
|
}
|
|
}
|
|
|
|
/* The CSC registers are sequential, alternating MSB then LSB */
|
|
for (i = 0; i < ARRAY_SIZE(csc_coeff_default[0]); i++) {
|
|
u16 coeff_a = (*csc_coeff)[0][i];
|
|
u16 coeff_b = (*csc_coeff)[1][i];
|
|
u16 coeff_c = (*csc_coeff)[2][i];
|
|
|
|
hdmi_writeb(hdmi, coeff_a & 0xff, HDMI_CSC_COEF_A1_LSB + i * 2);
|
|
hdmi_writeb(hdmi, coeff_a >> 8, HDMI_CSC_COEF_A1_MSB + i * 2);
|
|
hdmi_writeb(hdmi, coeff_b & 0xff, HDMI_CSC_COEF_B1_LSB + i * 2);
|
|
hdmi_writeb(hdmi, coeff_b >> 8, HDMI_CSC_COEF_B1_MSB + i * 2);
|
|
hdmi_writeb(hdmi, coeff_c & 0xff, HDMI_CSC_COEF_C1_LSB + i * 2);
|
|
hdmi_writeb(hdmi, coeff_c >> 8, HDMI_CSC_COEF_C1_MSB + i * 2);
|
|
}
|
|
|
|
hdmi_modb(hdmi, csc_scale, HDMI_CSC_SCALE_CSCSCALE_MASK,
|
|
HDMI_CSC_SCALE);
|
|
}
|
|
|
|
static void hdmi_video_csc(struct dw_hdmi *hdmi)
|
|
{
|
|
int color_depth = 0;
|
|
int interpolation = HDMI_CSC_CFG_INTMODE_DISABLE;
|
|
int decimation = 0;
|
|
|
|
/* YCC422 interpolation to 444 mode */
|
|
if (is_color_space_interpolation(hdmi))
|
|
interpolation = HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1;
|
|
else if (is_color_space_decimation(hdmi))
|
|
decimation = HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA3;
|
|
|
|
if (hdmi->hdmi_data.enc_color_depth == 8)
|
|
color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_24BPP;
|
|
else if (hdmi->hdmi_data.enc_color_depth == 10)
|
|
color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_30BPP;
|
|
else if (hdmi->hdmi_data.enc_color_depth == 12)
|
|
color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_36BPP;
|
|
else if (hdmi->hdmi_data.enc_color_depth == 16)
|
|
color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_48BPP;
|
|
else
|
|
return;
|
|
|
|
/* Configure the CSC registers */
|
|
hdmi_writeb(hdmi, interpolation | decimation, HDMI_CSC_CFG);
|
|
hdmi_modb(hdmi, color_depth, HDMI_CSC_SCALE_CSC_COLORDE_PTH_MASK,
|
|
HDMI_CSC_SCALE);
|
|
|
|
dw_hdmi_update_csc_coeffs(hdmi);
|
|
}
|
|
|
|
/*
|
|
* HDMI video packetizer is used to packetize the data.
|
|
* for example, if input is YCC422 mode or repeater is used,
|
|
* data should be repacked this module can be bypassed.
|
|
*/
|
|
static void hdmi_video_packetize(struct dw_hdmi *hdmi)
|
|
{
|
|
unsigned int color_depth = 0;
|
|
unsigned int remap_size = HDMI_VP_REMAP_YCC422_16bit;
|
|
unsigned int output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_PP;
|
|
struct hdmi_data_info *hdmi_data = &hdmi->hdmi_data;
|
|
u8 val, vp_conf;
|
|
|
|
if (hdmi_data->enc_out_format == RGB ||
|
|
hdmi_data->enc_out_format == YCBCR444) {
|
|
if (!hdmi_data->enc_color_depth) {
|
|
output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
|
|
} else if (hdmi_data->enc_color_depth == 8) {
|
|
color_depth = 4;
|
|
output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
|
|
} else if (hdmi_data->enc_color_depth == 10) {
|
|
color_depth = 5;
|
|
} else if (hdmi_data->enc_color_depth == 12) {
|
|
color_depth = 6;
|
|
} else if (hdmi_data->enc_color_depth == 16) {
|
|
color_depth = 7;
|
|
} else {
|
|
return;
|
|
}
|
|
} else if (hdmi_data->enc_out_format == YCBCR422_8BITS) {
|
|
if (!hdmi_data->enc_color_depth ||
|
|
hdmi_data->enc_color_depth == 8)
|
|
remap_size = HDMI_VP_REMAP_YCC422_16bit;
|
|
else if (hdmi_data->enc_color_depth == 10)
|
|
remap_size = HDMI_VP_REMAP_YCC422_20bit;
|
|
else if (hdmi_data->enc_color_depth == 12)
|
|
remap_size = HDMI_VP_REMAP_YCC422_24bit;
|
|
else
|
|
return;
|
|
output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422;
|
|
} else {
|
|
return;
|
|
}
|
|
|
|
/* set the packetizer registers */
|
|
val = ((color_depth << HDMI_VP_PR_CD_COLOR_DEPTH_OFFSET) &
|
|
HDMI_VP_PR_CD_COLOR_DEPTH_MASK) |
|
|
((hdmi_data->pix_repet_factor <<
|
|
HDMI_VP_PR_CD_DESIRED_PR_FACTOR_OFFSET) &
|
|
HDMI_VP_PR_CD_DESIRED_PR_FACTOR_MASK);
|
|
hdmi_writeb(hdmi, val, HDMI_VP_PR_CD);
|
|
|
|
hdmi_modb(hdmi, HDMI_VP_STUFF_PR_STUFFING_STUFFING_MODE,
|
|
HDMI_VP_STUFF_PR_STUFFING_MASK, HDMI_VP_STUFF);
|
|
|
|
/* Data from pixel repeater block */
|
|
if (hdmi_data->pix_repet_factor > 1) {
|
|
vp_conf = HDMI_VP_CONF_PR_EN_ENABLE |
|
|
HDMI_VP_CONF_BYPASS_SELECT_PIX_REPEATER;
|
|
} else { /* data from packetizer block */
|
|
vp_conf = HDMI_VP_CONF_PR_EN_DISABLE |
|
|
HDMI_VP_CONF_BYPASS_SELECT_VID_PACKETIZER;
|
|
}
|
|
|
|
hdmi_modb(hdmi, vp_conf,
|
|
HDMI_VP_CONF_PR_EN_MASK |
|
|
HDMI_VP_CONF_BYPASS_SELECT_MASK, HDMI_VP_CONF);
|
|
|
|
hdmi_modb(hdmi, 1 << HDMI_VP_STUFF_IDEFAULT_PHASE_OFFSET,
|
|
HDMI_VP_STUFF_IDEFAULT_PHASE_MASK, HDMI_VP_STUFF);
|
|
|
|
hdmi_writeb(hdmi, remap_size, HDMI_VP_REMAP);
|
|
|
|
if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_PP) {
|
|
vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE |
|
|
HDMI_VP_CONF_PP_EN_ENABLE |
|
|
HDMI_VP_CONF_YCC422_EN_DISABLE;
|
|
} else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422) {
|
|
vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE |
|
|
HDMI_VP_CONF_PP_EN_DISABLE |
|
|
HDMI_VP_CONF_YCC422_EN_ENABLE;
|
|
} else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS) {
|
|
vp_conf = HDMI_VP_CONF_BYPASS_EN_ENABLE |
|
|
HDMI_VP_CONF_PP_EN_DISABLE |
|
|
HDMI_VP_CONF_YCC422_EN_DISABLE;
|
|
} else {
|
|
return;
|
|
}
|
|
|
|
hdmi_modb(hdmi, vp_conf,
|
|
HDMI_VP_CONF_BYPASS_EN_MASK | HDMI_VP_CONF_PP_EN_ENMASK |
|
|
HDMI_VP_CONF_YCC422_EN_MASK, HDMI_VP_CONF);
|
|
|
|
hdmi_modb(hdmi, HDMI_VP_STUFF_PP_STUFFING_STUFFING_MODE |
|
|
HDMI_VP_STUFF_YCC422_STUFFING_STUFFING_MODE,
|
|
HDMI_VP_STUFF_PP_STUFFING_MASK |
|
|
HDMI_VP_STUFF_YCC422_STUFFING_MASK, HDMI_VP_STUFF);
|
|
|
|
hdmi_modb(hdmi, output_select, HDMI_VP_CONF_OUTPUT_SELECTOR_MASK,
|
|
HDMI_VP_CONF);
|
|
}
|
|
|
|
static inline void hdmi_phy_test_clear(struct dw_hdmi *hdmi,
|
|
unsigned char bit)
|
|
{
|
|
hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLR_OFFSET,
|
|
HDMI_PHY_TST0_TSTCLR_MASK, HDMI_PHY_TST0);
|
|
}
|
|
|
|
static inline void hdmi_phy_test_enable(struct dw_hdmi *hdmi,
|
|
unsigned char bit)
|
|
{
|
|
hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTEN_OFFSET,
|
|
HDMI_PHY_TST0_TSTEN_MASK, HDMI_PHY_TST0);
|
|
}
|
|
|
|
static inline void hdmi_phy_test_clock(struct dw_hdmi *hdmi,
|
|
unsigned char bit)
|
|
{
|
|
hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLK_OFFSET,
|
|
HDMI_PHY_TST0_TSTCLK_MASK, HDMI_PHY_TST0);
|
|
}
|
|
|
|
static inline void hdmi_phy_test_din(struct dw_hdmi *hdmi,
|
|
unsigned char bit)
|
|
{
|
|
hdmi_writeb(hdmi, bit, HDMI_PHY_TST1);
|
|
}
|
|
|
|
static inline void hdmi_phy_test_dout(struct dw_hdmi *hdmi,
|
|
unsigned char bit)
|
|
{
|
|
hdmi_writeb(hdmi, bit, HDMI_PHY_TST2);
|
|
}
|
|
|
|
static bool hdmi_phy_wait_i2c_done(struct dw_hdmi *hdmi, int msec)
|
|
{
|
|
u32 val;
|
|
|
|
while ((val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3) == 0) {
|
|
if (msec-- == 0)
|
|
return false;
|
|
udelay(1000);
|
|
}
|
|
hdmi_writeb(hdmi, val, HDMI_IH_I2CMPHY_STAT0);
|
|
|
|
return true;
|
|
}
|
|
|
|
static void __hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data,
|
|
unsigned char addr)
|
|
{
|
|
hdmi_writeb(hdmi, 0xFF, HDMI_IH_I2CMPHY_STAT0);
|
|
hdmi_writeb(hdmi, addr, HDMI_PHY_I2CM_ADDRESS_ADDR);
|
|
hdmi_writeb(hdmi, (unsigned char)(data >> 8),
|
|
HDMI_PHY_I2CM_DATAO_1_ADDR);
|
|
hdmi_writeb(hdmi, (unsigned char)(data >> 0),
|
|
HDMI_PHY_I2CM_DATAO_0_ADDR);
|
|
hdmi_writeb(hdmi, HDMI_PHY_I2CM_OPERATION_ADDR_WRITE,
|
|
HDMI_PHY_I2CM_OPERATION_ADDR);
|
|
hdmi_phy_wait_i2c_done(hdmi, 1000);
|
|
}
|
|
|
|
static int hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data,
|
|
unsigned char addr)
|
|
{
|
|
__hdmi_phy_i2c_write(hdmi, data, addr);
|
|
return 0;
|
|
}
|
|
|
|
static void dw_hdmi_phy_enable_powerdown(struct dw_hdmi *hdmi, bool enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, !enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_PDZ_OFFSET,
|
|
HDMI_PHY_CONF0_PDZ_MASK);
|
|
}
|
|
|
|
static void dw_hdmi_phy_enable_tmds(struct dw_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_ENTMDS_OFFSET,
|
|
HDMI_PHY_CONF0_ENTMDS_MASK);
|
|
}
|
|
|
|
static void dw_hdmi_phy_enable_spare(struct dw_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_SPARECTRL_OFFSET,
|
|
HDMI_PHY_CONF0_SPARECTRL_MASK);
|
|
}
|
|
|
|
static void dw_hdmi_phy_gen2_pddq(struct dw_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_GEN2_PDDQ_OFFSET,
|
|
HDMI_PHY_CONF0_GEN2_PDDQ_MASK);
|
|
}
|
|
|
|
static void dw_hdmi_phy_gen2_txpwron(struct dw_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_GEN2_TXPWRON_OFFSET,
|
|
HDMI_PHY_CONF0_GEN2_TXPWRON_MASK);
|
|
}
|
|
|
|
static void dw_hdmi_phy_sel_data_en_pol(struct dw_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_SELDATAENPOL_OFFSET,
|
|
HDMI_PHY_CONF0_SELDATAENPOL_MASK);
|
|
}
|
|
|
|
static void dw_hdmi_phy_sel_interface_control(struct dw_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_SELDIPIF_OFFSET,
|
|
HDMI_PHY_CONF0_SELDIPIF_MASK);
|
|
}
|
|
|
|
static int hdmi_phy_configure(struct dw_hdmi *hdmi, unsigned char prep,
|
|
unsigned char res, int cscon)
|
|
{
|
|
unsigned res_idx;
|
|
u8 val, msec;
|
|
const struct dw_hdmi_plat_data *pdata = hdmi->plat_data;
|
|
const struct dw_hdmi_mpll_config *mpll_config = pdata->mpll_cfg;
|
|
const struct dw_hdmi_curr_ctrl *curr_ctrl = pdata->cur_ctr;
|
|
const struct dw_hdmi_phy_config *phy_config = pdata->phy_config;
|
|
|
|
if (prep)
|
|
return -EINVAL;
|
|
|
|
switch (res) {
|
|
case 0: /* color resolution 0 is 8 bit colour depth */
|
|
case 8:
|
|
res_idx = DW_HDMI_RES_8;
|
|
break;
|
|
case 10:
|
|
res_idx = DW_HDMI_RES_10;
|
|
break;
|
|
case 12:
|
|
res_idx = DW_HDMI_RES_12;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* PLL/MPLL Cfg - always match on final entry */
|
|
for (; mpll_config->mpixelclock != ~0UL; mpll_config++)
|
|
if (hdmi->hdmi_data.video_mode.mpixelclock <=
|
|
mpll_config->mpixelclock)
|
|
break;
|
|
|
|
for (; curr_ctrl->mpixelclock != ~0UL; curr_ctrl++)
|
|
if (hdmi->hdmi_data.video_mode.mpixelclock <=
|
|
curr_ctrl->mpixelclock)
|
|
break;
|
|
|
|
for (; phy_config->mpixelclock != ~0UL; phy_config++)
|
|
if (hdmi->hdmi_data.video_mode.mpixelclock <=
|
|
phy_config->mpixelclock)
|
|
break;
|
|
|
|
if (mpll_config->mpixelclock == ~0UL ||
|
|
curr_ctrl->mpixelclock == ~0UL ||
|
|
phy_config->mpixelclock == ~0UL) {
|
|
dev_err(hdmi->dev, "Pixel clock %d - unsupported by HDMI\n",
|
|
hdmi->hdmi_data.video_mode.mpixelclock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Enable csc path */
|
|
if (cscon)
|
|
val = HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH;
|
|
else
|
|
val = HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS;
|
|
|
|
hdmi_writeb(hdmi, val, HDMI_MC_FLOWCTRL);
|
|
|
|
/* gen2 tx power off */
|
|
dw_hdmi_phy_gen2_txpwron(hdmi, 0);
|
|
|
|
/* gen2 pddq */
|
|
dw_hdmi_phy_gen2_pddq(hdmi, 1);
|
|
|
|
/* PHY reset */
|
|
hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_DEASSERT, HDMI_MC_PHYRSTZ);
|
|
hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_ASSERT, HDMI_MC_PHYRSTZ);
|
|
|
|
hdmi_writeb(hdmi, HDMI_MC_HEACPHY_RST_ASSERT, HDMI_MC_HEACPHY_RST);
|
|
|
|
hdmi_phy_test_clear(hdmi, 1);
|
|
hdmi_writeb(hdmi, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2,
|
|
HDMI_PHY_I2CM_SLAVE_ADDR);
|
|
hdmi_phy_test_clear(hdmi, 0);
|
|
|
|
hdmi_phy_i2c_write(hdmi, mpll_config->res[res_idx].cpce, 0x06);
|
|
hdmi_phy_i2c_write(hdmi, mpll_config->res[res_idx].gmp, 0x15);
|
|
|
|
/* CURRCTRL */
|
|
hdmi_phy_i2c_write(hdmi, curr_ctrl->curr[res_idx], 0x10);
|
|
|
|
hdmi_phy_i2c_write(hdmi, 0x0000, 0x13); /* PLLPHBYCTRL */
|
|
hdmi_phy_i2c_write(hdmi, 0x0006, 0x17);
|
|
|
|
hdmi_phy_i2c_write(hdmi, phy_config->term, 0x19); /* TXTERM */
|
|
hdmi_phy_i2c_write(hdmi, phy_config->sym_ctr, 0x09); /* CKSYMTXCTRL */
|
|
hdmi_phy_i2c_write(hdmi, phy_config->vlev_ctr, 0x0E); /* VLEVCTRL */
|
|
|
|
/* REMOVE CLK TERM */
|
|
hdmi_phy_i2c_write(hdmi, 0x8000, 0x05); /* CKCALCTRL */
|
|
|
|
dw_hdmi_phy_enable_powerdown(hdmi, false);
|
|
|
|
/* toggle TMDS enable */
|
|
dw_hdmi_phy_enable_tmds(hdmi, 0);
|
|
dw_hdmi_phy_enable_tmds(hdmi, 1);
|
|
|
|
/* gen2 tx power on */
|
|
dw_hdmi_phy_gen2_txpwron(hdmi, 1);
|
|
dw_hdmi_phy_gen2_pddq(hdmi, 0);
|
|
|
|
if (hdmi->dev_type == RK3288_HDMI)
|
|
dw_hdmi_phy_enable_spare(hdmi, 1);
|
|
|
|
/*Wait for PHY PLL lock */
|
|
msec = 5;
|
|
do {
|
|
val = hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_TX_PHY_LOCK;
|
|
if (!val)
|
|
break;
|
|
|
|
if (msec == 0) {
|
|
dev_err(hdmi->dev, "PHY PLL not locked\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
udelay(1000);
|
|
msec--;
|
|
} while (1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dw_hdmi_phy_init(struct dw_hdmi *hdmi)
|
|
{
|
|
int i, ret;
|
|
bool cscon;
|
|
|
|
/*check csc whether needed activated in HDMI mode */
|
|
cscon = hdmi->sink_is_hdmi && is_color_space_conversion(hdmi);
|
|
|
|
/* HDMI Phy spec says to do the phy initialization sequence twice */
|
|
for (i = 0; i < 2; i++) {
|
|
dw_hdmi_phy_sel_data_en_pol(hdmi, 1);
|
|
dw_hdmi_phy_sel_interface_control(hdmi, 0);
|
|
dw_hdmi_phy_enable_tmds(hdmi, 0);
|
|
dw_hdmi_phy_enable_powerdown(hdmi, true);
|
|
|
|
/* Enable CSC */
|
|
ret = hdmi_phy_configure(hdmi, 0, 8, cscon);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
hdmi->phy_enabled = true;
|
|
return 0;
|
|
}
|
|
|
|
static void hdmi_tx_hdcp_config(struct dw_hdmi *hdmi)
|
|
{
|
|
u8 de;
|
|
|
|
if (hdmi->hdmi_data.video_mode.mdataenablepolarity)
|
|
de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_HIGH;
|
|
else
|
|
de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_LOW;
|
|
|
|
/* disable rx detect */
|
|
hdmi_modb(hdmi, HDMI_A_HDCPCFG0_RXDETECT_DISABLE,
|
|
HDMI_A_HDCPCFG0_RXDETECT_MASK, HDMI_A_HDCPCFG0);
|
|
|
|
hdmi_modb(hdmi, de, HDMI_A_VIDPOLCFG_DATAENPOL_MASK, HDMI_A_VIDPOLCFG);
|
|
|
|
hdmi_modb(hdmi, HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_DISABLE,
|
|
HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_MASK, HDMI_A_HDCPCFG1);
|
|
}
|
|
|
|
static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
|
|
{
|
|
struct hdmi_avi_infoframe frame;
|
|
u8 val;
|
|
|
|
/* Initialise info frame from DRM mode */
|
|
drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
|
|
|
|
if (hdmi->hdmi_data.enc_out_format == YCBCR444)
|
|
frame.colorspace = HDMI_COLORSPACE_YUV444;
|
|
else if (hdmi->hdmi_data.enc_out_format == YCBCR422_8BITS)
|
|
frame.colorspace = HDMI_COLORSPACE_YUV422;
|
|
else
|
|
frame.colorspace = HDMI_COLORSPACE_RGB;
|
|
|
|
/* Set up colorimetry */
|
|
if (hdmi->hdmi_data.enc_out_format == XVYCC444) {
|
|
frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
|
|
if (hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_601)
|
|
frame.extended_colorimetry =
|
|
HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
|
|
else /*hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_709*/
|
|
frame.extended_colorimetry =
|
|
HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
|
|
} else if (hdmi->hdmi_data.enc_out_format != RGB) {
|
|
frame.colorimetry = hdmi->hdmi_data.colorimetry;
|
|
frame.extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
|
|
} else { /* Carries no data */
|
|
frame.colorimetry = HDMI_COLORIMETRY_NONE;
|
|
frame.extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
|
|
}
|
|
|
|
frame.scan_mode = HDMI_SCAN_MODE_NONE;
|
|
|
|
/*
|
|
* The Designware IP uses a different byte format from standard
|
|
* AVI info frames, though generally the bits are in the correct
|
|
* bytes.
|
|
*/
|
|
|
|
/*
|
|
* AVI data byte 1 differences: Colorspace in bits 4,5 rather than 5,6,
|
|
* active aspect present in bit 6 rather than 4.
|
|
*/
|
|
val = (frame.colorspace & 3) << 4 | (frame.scan_mode & 0x3);
|
|
if (frame.active_aspect & 15)
|
|
val |= HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT;
|
|
if (frame.top_bar || frame.bottom_bar)
|
|
val |= HDMI_FC_AVICONF0_BAR_DATA_HORIZ_BAR;
|
|
if (frame.left_bar || frame.right_bar)
|
|
val |= HDMI_FC_AVICONF0_BAR_DATA_VERT_BAR;
|
|
hdmi_writeb(hdmi, val, HDMI_FC_AVICONF0);
|
|
|
|
/* AVI data byte 2 differences: none */
|
|
val = ((frame.colorimetry & 0x3) << 6) |
|
|
((frame.picture_aspect & 0x3) << 4) |
|
|
(frame.active_aspect & 0xf);
|
|
hdmi_writeb(hdmi, val, HDMI_FC_AVICONF1);
|
|
|
|
/* AVI data byte 3 differences: none */
|
|
val = ((frame.extended_colorimetry & 0x7) << 4) |
|
|
((frame.quantization_range & 0x3) << 2) |
|
|
(frame.nups & 0x3);
|
|
if (frame.itc)
|
|
val |= HDMI_FC_AVICONF2_IT_CONTENT_VALID;
|
|
hdmi_writeb(hdmi, val, HDMI_FC_AVICONF2);
|
|
|
|
/* AVI data byte 4 differences: none */
|
|
val = frame.video_code & 0x7f;
|
|
hdmi_writeb(hdmi, val, HDMI_FC_AVIVID);
|
|
|
|
/* AVI Data Byte 5- set up input and output pixel repetition */
|
|
val = (((hdmi->hdmi_data.video_mode.mpixelrepetitioninput + 1) <<
|
|
HDMI_FC_PRCONF_INCOMING_PR_FACTOR_OFFSET) &
|
|
HDMI_FC_PRCONF_INCOMING_PR_FACTOR_MASK) |
|
|
((hdmi->hdmi_data.video_mode.mpixelrepetitionoutput <<
|
|
HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_OFFSET) &
|
|
HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_MASK);
|
|
hdmi_writeb(hdmi, val, HDMI_FC_PRCONF);
|
|
|
|
/*
|
|
* AVI data byte 5 differences: content type in 0,1 rather than 4,5,
|
|
* ycc range in bits 2,3 rather than 6,7
|
|
*/
|
|
val = ((frame.ycc_quantization_range & 0x3) << 2) |
|
|
(frame.content_type & 0x3);
|
|
hdmi_writeb(hdmi, val, HDMI_FC_AVICONF3);
|
|
|
|
/* AVI Data Bytes 6-13 */
|
|
hdmi_writeb(hdmi, frame.top_bar & 0xff, HDMI_FC_AVIETB0);
|
|
hdmi_writeb(hdmi, (frame.top_bar >> 8) & 0xff, HDMI_FC_AVIETB1);
|
|
hdmi_writeb(hdmi, frame.bottom_bar & 0xff, HDMI_FC_AVISBB0);
|
|
hdmi_writeb(hdmi, (frame.bottom_bar >> 8) & 0xff, HDMI_FC_AVISBB1);
|
|
hdmi_writeb(hdmi, frame.left_bar & 0xff, HDMI_FC_AVIELB0);
|
|
hdmi_writeb(hdmi, (frame.left_bar >> 8) & 0xff, HDMI_FC_AVIELB1);
|
|
hdmi_writeb(hdmi, frame.right_bar & 0xff, HDMI_FC_AVISRB0);
|
|
hdmi_writeb(hdmi, (frame.right_bar >> 8) & 0xff, HDMI_FC_AVISRB1);
|
|
}
|
|
|
|
static void hdmi_av_composer(struct dw_hdmi *hdmi,
|
|
const struct drm_display_mode *mode)
|
|
{
|
|
u8 inv_val;
|
|
struct hdmi_vmode *vmode = &hdmi->hdmi_data.video_mode;
|
|
int hblank, vblank, h_de_hs, v_de_vs, hsync_len, vsync_len;
|
|
unsigned int vdisplay;
|
|
|
|
vmode->mpixelclock = mode->clock * 1000;
|
|
|
|
dev_dbg(hdmi->dev, "final pixclk = %d\n", vmode->mpixelclock);
|
|
|
|
/* Set up HDMI_FC_INVIDCONF */
|
|
inv_val = (hdmi->hdmi_data.hdcp_enable ?
|
|
HDMI_FC_INVIDCONF_HDCP_KEEPOUT_ACTIVE :
|
|
HDMI_FC_INVIDCONF_HDCP_KEEPOUT_INACTIVE);
|
|
|
|
inv_val |= mode->flags & DRM_MODE_FLAG_PVSYNC ?
|
|
HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_HIGH :
|
|
HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_LOW;
|
|
|
|
inv_val |= mode->flags & DRM_MODE_FLAG_PHSYNC ?
|
|
HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_HIGH :
|
|
HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_LOW;
|
|
|
|
inv_val |= (vmode->mdataenablepolarity ?
|
|
HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH :
|
|
HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_LOW);
|
|
|
|
if (hdmi->vic == 39)
|
|
inv_val |= HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH;
|
|
else
|
|
inv_val |= mode->flags & DRM_MODE_FLAG_INTERLACE ?
|
|
HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH :
|
|
HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_LOW;
|
|
|
|
inv_val |= mode->flags & DRM_MODE_FLAG_INTERLACE ?
|
|
HDMI_FC_INVIDCONF_IN_I_P_INTERLACED :
|
|
HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE;
|
|
|
|
inv_val |= hdmi->sink_is_hdmi ?
|
|
HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE :
|
|
HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE;
|
|
|
|
hdmi_writeb(hdmi, inv_val, HDMI_FC_INVIDCONF);
|
|
|
|
vdisplay = mode->vdisplay;
|
|
vblank = mode->vtotal - mode->vdisplay;
|
|
v_de_vs = mode->vsync_start - mode->vdisplay;
|
|
vsync_len = mode->vsync_end - mode->vsync_start;
|
|
|
|
/*
|
|
* When we're setting an interlaced mode, we need
|
|
* to adjust the vertical timing to suit.
|
|
*/
|
|
if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
|
|
vdisplay /= 2;
|
|
vblank /= 2;
|
|
v_de_vs /= 2;
|
|
vsync_len /= 2;
|
|
}
|
|
|
|
/* Set up horizontal active pixel width */
|
|
hdmi_writeb(hdmi, mode->hdisplay >> 8, HDMI_FC_INHACTV1);
|
|
hdmi_writeb(hdmi, mode->hdisplay, HDMI_FC_INHACTV0);
|
|
|
|
/* Set up vertical active lines */
|
|
hdmi_writeb(hdmi, vdisplay >> 8, HDMI_FC_INVACTV1);
|
|
hdmi_writeb(hdmi, vdisplay, HDMI_FC_INVACTV0);
|
|
|
|
/* Set up horizontal blanking pixel region width */
|
|
hblank = mode->htotal - mode->hdisplay;
|
|
hdmi_writeb(hdmi, hblank >> 8, HDMI_FC_INHBLANK1);
|
|
hdmi_writeb(hdmi, hblank, HDMI_FC_INHBLANK0);
|
|
|
|
/* Set up vertical blanking pixel region width */
|
|
hdmi_writeb(hdmi, vblank, HDMI_FC_INVBLANK);
|
|
|
|
/* Set up HSYNC active edge delay width (in pixel clks) */
|
|
h_de_hs = mode->hsync_start - mode->hdisplay;
|
|
hdmi_writeb(hdmi, h_de_hs >> 8, HDMI_FC_HSYNCINDELAY1);
|
|
hdmi_writeb(hdmi, h_de_hs, HDMI_FC_HSYNCINDELAY0);
|
|
|
|
/* Set up VSYNC active edge delay (in lines) */
|
|
hdmi_writeb(hdmi, v_de_vs, HDMI_FC_VSYNCINDELAY);
|
|
|
|
/* Set up HSYNC active pulse width (in pixel clks) */
|
|
hsync_len = mode->hsync_end - mode->hsync_start;
|
|
hdmi_writeb(hdmi, hsync_len >> 8, HDMI_FC_HSYNCINWIDTH1);
|
|
hdmi_writeb(hdmi, hsync_len, HDMI_FC_HSYNCINWIDTH0);
|
|
|
|
/* Set up VSYNC active edge delay (in lines) */
|
|
hdmi_writeb(hdmi, vsync_len, HDMI_FC_VSYNCINWIDTH);
|
|
}
|
|
|
|
static void dw_hdmi_phy_disable(struct dw_hdmi *hdmi)
|
|
{
|
|
if (!hdmi->phy_enabled)
|
|
return;
|
|
|
|
dw_hdmi_phy_enable_tmds(hdmi, 0);
|
|
dw_hdmi_phy_enable_powerdown(hdmi, true);
|
|
|
|
hdmi->phy_enabled = false;
|
|
}
|
|
|
|
/* HDMI Initialization Step B.4 */
|
|
static void dw_hdmi_enable_video_path(struct dw_hdmi *hdmi)
|
|
{
|
|
u8 clkdis;
|
|
|
|
/* control period minimum duration */
|
|
hdmi_writeb(hdmi, 12, HDMI_FC_CTRLDUR);
|
|
hdmi_writeb(hdmi, 32, HDMI_FC_EXCTRLDUR);
|
|
hdmi_writeb(hdmi, 1, HDMI_FC_EXCTRLSPAC);
|
|
|
|
/* Set to fill TMDS data channels */
|
|
hdmi_writeb(hdmi, 0x0B, HDMI_FC_CH0PREAM);
|
|
hdmi_writeb(hdmi, 0x16, HDMI_FC_CH1PREAM);
|
|
hdmi_writeb(hdmi, 0x21, HDMI_FC_CH2PREAM);
|
|
|
|
/* Enable pixel clock and tmds data path */
|
|
clkdis = 0x7F;
|
|
clkdis &= ~HDMI_MC_CLKDIS_PIXELCLK_DISABLE;
|
|
hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
|
|
|
|
clkdis &= ~HDMI_MC_CLKDIS_TMDSCLK_DISABLE;
|
|
hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
|
|
|
|
/* Enable csc path */
|
|
if (is_color_space_conversion(hdmi)) {
|
|
clkdis &= ~HDMI_MC_CLKDIS_CSCCLK_DISABLE;
|
|
hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
|
|
}
|
|
}
|
|
|
|
static void hdmi_enable_audio_clk(struct dw_hdmi *hdmi)
|
|
{
|
|
hdmi_modb(hdmi, 0, HDMI_MC_CLKDIS_AUDCLK_DISABLE, HDMI_MC_CLKDIS);
|
|
}
|
|
|
|
/* Workaround to clear the overflow condition */
|
|
static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi)
|
|
{
|
|
int count;
|
|
u8 val;
|
|
|
|
/* TMDS software reset */
|
|
hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ, HDMI_MC_SWRSTZ);
|
|
|
|
val = hdmi_readb(hdmi, HDMI_FC_INVIDCONF);
|
|
if (hdmi->dev_type == IMX6DL_HDMI) {
|
|
hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
|
|
return;
|
|
}
|
|
|
|
for (count = 0; count < 4; count++)
|
|
hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
|
|
}
|
|
|
|
static void hdmi_enable_overflow_interrupts(struct dw_hdmi *hdmi)
|
|
{
|
|
hdmi_writeb(hdmi, 0, HDMI_FC_MASK2);
|
|
hdmi_writeb(hdmi, 0, HDMI_IH_MUTE_FC_STAT2);
|
|
}
|
|
|
|
static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi)
|
|
{
|
|
hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK,
|
|
HDMI_IH_MUTE_FC_STAT2);
|
|
}
|
|
|
|
static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
|
|
{
|
|
int ret;
|
|
|
|
hdmi_disable_overflow_interrupts(hdmi);
|
|
|
|
hdmi->vic = drm_match_cea_mode(mode);
|
|
|
|
if (!hdmi->vic) {
|
|
dev_dbg(hdmi->dev, "Non-CEA mode used in HDMI\n");
|
|
} else {
|
|
dev_dbg(hdmi->dev, "CEA mode used vic=%d\n", hdmi->vic);
|
|
}
|
|
|
|
if ((hdmi->vic == 6) || (hdmi->vic == 7) ||
|
|
(hdmi->vic == 21) || (hdmi->vic == 22) ||
|
|
(hdmi->vic == 2) || (hdmi->vic == 3) ||
|
|
(hdmi->vic == 17) || (hdmi->vic == 18))
|
|
hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601;
|
|
else
|
|
hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709;
|
|
|
|
hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 0;
|
|
hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 0;
|
|
|
|
/* TODO: Get input format from IPU (via FB driver interface) */
|
|
hdmi->hdmi_data.enc_in_format = RGB;
|
|
|
|
hdmi->hdmi_data.enc_out_format = RGB;
|
|
|
|
hdmi->hdmi_data.enc_color_depth = 8;
|
|
hdmi->hdmi_data.pix_repet_factor = 0;
|
|
hdmi->hdmi_data.hdcp_enable = 0;
|
|
hdmi->hdmi_data.video_mode.mdataenablepolarity = true;
|
|
|
|
/* HDMI Initialization Step B.1 */
|
|
hdmi_av_composer(hdmi, mode);
|
|
|
|
/* HDMI Initializateion Step B.2 */
|
|
ret = dw_hdmi_phy_init(hdmi);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* HDMI Initialization Step B.3 */
|
|
dw_hdmi_enable_video_path(hdmi);
|
|
|
|
if (hdmi->sink_has_audio) {
|
|
dev_dbg(hdmi->dev, "sink has audio support\n");
|
|
|
|
/* HDMI Initialization Step E - Configure audio */
|
|
hdmi_clk_regenerator_update_pixel_clock(hdmi);
|
|
hdmi_enable_audio_clk(hdmi);
|
|
}
|
|
|
|
/* not for DVI mode */
|
|
if (hdmi->sink_is_hdmi) {
|
|
dev_dbg(hdmi->dev, "%s HDMI mode\n", __func__);
|
|
|
|
/* HDMI Initialization Step F - Configure AVI InfoFrame */
|
|
hdmi_config_AVI(hdmi, mode);
|
|
} else {
|
|
dev_dbg(hdmi->dev, "%s DVI mode\n", __func__);
|
|
}
|
|
|
|
hdmi_video_packetize(hdmi);
|
|
hdmi_video_csc(hdmi);
|
|
hdmi_video_sample(hdmi);
|
|
hdmi_tx_hdcp_config(hdmi);
|
|
|
|
dw_hdmi_clear_overflow(hdmi);
|
|
if (hdmi->cable_plugin && hdmi->sink_is_hdmi)
|
|
hdmi_enable_overflow_interrupts(hdmi);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Wait until we are registered to enable interrupts */
|
|
static int dw_hdmi_fb_registered(struct dw_hdmi *hdmi)
|
|
{
|
|
hdmi_writeb(hdmi, HDMI_PHY_I2CM_INT_ADDR_DONE_POL,
|
|
HDMI_PHY_I2CM_INT_ADDR);
|
|
|
|
hdmi_writeb(hdmi, HDMI_PHY_I2CM_CTLINT_ADDR_NAC_POL |
|
|
HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL,
|
|
HDMI_PHY_I2CM_CTLINT_ADDR);
|
|
|
|
/* enable cable hot plug irq */
|
|
hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0);
|
|
|
|
/* Clear Hotplug interrupts */
|
|
hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE,
|
|
HDMI_IH_PHY_STAT0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void initialize_hdmi_ih_mutes(struct dw_hdmi *hdmi)
|
|
{
|
|
u8 ih_mute;
|
|
|
|
/*
|
|
* Boot up defaults are:
|
|
* HDMI_IH_MUTE = 0x03 (disabled)
|
|
* HDMI_IH_MUTE_* = 0x00 (enabled)
|
|
*
|
|
* Disable top level interrupt bits in HDMI block
|
|
*/
|
|
ih_mute = hdmi_readb(hdmi, HDMI_IH_MUTE) |
|
|
HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT |
|
|
HDMI_IH_MUTE_MUTE_ALL_INTERRUPT;
|
|
|
|
hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE);
|
|
|
|
/* by default mask all interrupts */
|
|
hdmi_writeb(hdmi, 0xff, HDMI_VP_MASK);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK1);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK2);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_PHY_MASK0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_PHY_I2CM_INT_ADDR);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_PHY_I2CM_CTLINT_ADDR);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_AUD_INT);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_AUD_SPDIFINT);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_AUD_HBR_MASK);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_GP_MASK);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_A_APIINTMSK);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_CEC_MASK);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_I2CM_INT);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_I2CM_CTLINT);
|
|
|
|
/* Disable interrupts in the IH_MUTE_* registers */
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT1);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT2);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AS_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_PHY_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CM_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_CEC_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_VP_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CMPHY_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AHBDMAAUD_STAT0);
|
|
|
|
/* Enable top level interrupt bits in HDMI block */
|
|
ih_mute &= ~(HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT |
|
|
HDMI_IH_MUTE_MUTE_ALL_INTERRUPT);
|
|
hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE);
|
|
}
|
|
|
|
static void dw_hdmi_poweron(struct dw_hdmi *hdmi)
|
|
{
|
|
hdmi->bridge_is_on = true;
|
|
dw_hdmi_setup(hdmi, &hdmi->previous_mode);
|
|
}
|
|
|
|
static void dw_hdmi_poweroff(struct dw_hdmi *hdmi)
|
|
{
|
|
dw_hdmi_phy_disable(hdmi);
|
|
hdmi->bridge_is_on = false;
|
|
}
|
|
|
|
static void dw_hdmi_update_power(struct dw_hdmi *hdmi)
|
|
{
|
|
int force = hdmi->force;
|
|
|
|
if (hdmi->disabled) {
|
|
force = DRM_FORCE_OFF;
|
|
} else if (force == DRM_FORCE_UNSPECIFIED) {
|
|
if (hdmi->rxsense)
|
|
force = DRM_FORCE_ON;
|
|
else
|
|
force = DRM_FORCE_OFF;
|
|
}
|
|
|
|
if (force == DRM_FORCE_OFF) {
|
|
if (hdmi->bridge_is_on)
|
|
dw_hdmi_poweroff(hdmi);
|
|
} else {
|
|
if (!hdmi->bridge_is_on)
|
|
dw_hdmi_poweron(hdmi);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Adjust the detection of RXSENSE according to whether we have a forced
|
|
* connection mode enabled, or whether we have been disabled. There is
|
|
* no point processing RXSENSE interrupts if we have a forced connection
|
|
* state, or DRM has us disabled.
|
|
*
|
|
* We also disable rxsense interrupts when we think we're disconnected
|
|
* to avoid floating TDMS signals giving false rxsense interrupts.
|
|
*
|
|
* Note: we still need to listen for HPD interrupts even when DRM has us
|
|
* disabled so that we can detect a connect event.
|
|
*/
|
|
static void dw_hdmi_update_phy_mask(struct dw_hdmi *hdmi)
|
|
{
|
|
u8 old_mask = hdmi->phy_mask;
|
|
|
|
if (hdmi->force || hdmi->disabled || !hdmi->rxsense)
|
|
hdmi->phy_mask |= HDMI_PHY_RX_SENSE;
|
|
else
|
|
hdmi->phy_mask &= ~HDMI_PHY_RX_SENSE;
|
|
|
|
if (old_mask != hdmi->phy_mask)
|
|
hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0);
|
|
}
|
|
|
|
static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge,
|
|
struct drm_display_mode *orig_mode,
|
|
struct drm_display_mode *mode)
|
|
{
|
|
struct dw_hdmi *hdmi = bridge->driver_private;
|
|
|
|
mutex_lock(&hdmi->mutex);
|
|
|
|
/* Store the display mode for plugin/DKMS poweron events */
|
|
memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode));
|
|
|
|
mutex_unlock(&hdmi->mutex);
|
|
}
|
|
|
|
static void dw_hdmi_bridge_disable(struct drm_bridge *bridge)
|
|
{
|
|
struct dw_hdmi *hdmi = bridge->driver_private;
|
|
|
|
mutex_lock(&hdmi->mutex);
|
|
hdmi->disabled = true;
|
|
dw_hdmi_update_power(hdmi);
|
|
dw_hdmi_update_phy_mask(hdmi);
|
|
mutex_unlock(&hdmi->mutex);
|
|
}
|
|
|
|
static void dw_hdmi_bridge_enable(struct drm_bridge *bridge)
|
|
{
|
|
struct dw_hdmi *hdmi = bridge->driver_private;
|
|
|
|
mutex_lock(&hdmi->mutex);
|
|
hdmi->disabled = false;
|
|
dw_hdmi_update_power(hdmi);
|
|
dw_hdmi_update_phy_mask(hdmi);
|
|
mutex_unlock(&hdmi->mutex);
|
|
}
|
|
|
|
static enum drm_connector_status
|
|
dw_hdmi_connector_detect(struct drm_connector *connector, bool force)
|
|
{
|
|
struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
|
|
connector);
|
|
|
|
mutex_lock(&hdmi->mutex);
|
|
hdmi->force = DRM_FORCE_UNSPECIFIED;
|
|
dw_hdmi_update_power(hdmi);
|
|
dw_hdmi_update_phy_mask(hdmi);
|
|
mutex_unlock(&hdmi->mutex);
|
|
|
|
return hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_HPD ?
|
|
connector_status_connected : connector_status_disconnected;
|
|
}
|
|
|
|
static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
|
|
{
|
|
struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
|
|
connector);
|
|
struct edid *edid;
|
|
int ret = 0;
|
|
|
|
if (!hdmi->ddc)
|
|
return 0;
|
|
|
|
edid = drm_get_edid(connector, hdmi->ddc);
|
|
if (edid) {
|
|
dev_dbg(hdmi->dev, "got edid: width[%d] x height[%d]\n",
|
|
edid->width_cm, edid->height_cm);
|
|
|
|
hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid);
|
|
hdmi->sink_has_audio = drm_detect_monitor_audio(edid);
|
|
drm_mode_connector_update_edid_property(connector, edid);
|
|
ret = drm_add_edid_modes(connector, edid);
|
|
/* Store the ELD */
|
|
drm_edid_to_eld(connector, edid);
|
|
kfree(edid);
|
|
} else {
|
|
dev_dbg(hdmi->dev, "failed to get edid\n");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static enum drm_mode_status
|
|
dw_hdmi_connector_mode_valid(struct drm_connector *connector,
|
|
struct drm_display_mode *mode)
|
|
{
|
|
struct dw_hdmi *hdmi = container_of(connector,
|
|
struct dw_hdmi, connector);
|
|
enum drm_mode_status mode_status = MODE_OK;
|
|
|
|
/* We don't support double-clocked modes */
|
|
if (mode->flags & DRM_MODE_FLAG_DBLCLK)
|
|
return MODE_BAD;
|
|
|
|
if (hdmi->plat_data->mode_valid)
|
|
mode_status = hdmi->plat_data->mode_valid(connector, mode);
|
|
|
|
return mode_status;
|
|
}
|
|
|
|
static void dw_hdmi_connector_destroy(struct drm_connector *connector)
|
|
{
|
|
drm_connector_unregister(connector);
|
|
drm_connector_cleanup(connector);
|
|
}
|
|
|
|
static void dw_hdmi_connector_force(struct drm_connector *connector)
|
|
{
|
|
struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
|
|
connector);
|
|
|
|
mutex_lock(&hdmi->mutex);
|
|
hdmi->force = connector->force;
|
|
dw_hdmi_update_power(hdmi);
|
|
dw_hdmi_update_phy_mask(hdmi);
|
|
mutex_unlock(&hdmi->mutex);
|
|
}
|
|
|
|
static const struct drm_connector_funcs dw_hdmi_connector_funcs = {
|
|
.dpms = drm_helper_connector_dpms,
|
|
.fill_modes = drm_helper_probe_single_connector_modes,
|
|
.detect = dw_hdmi_connector_detect,
|
|
.destroy = dw_hdmi_connector_destroy,
|
|
.force = dw_hdmi_connector_force,
|
|
};
|
|
|
|
static const struct drm_connector_funcs dw_hdmi_atomic_connector_funcs = {
|
|
.dpms = drm_atomic_helper_connector_dpms,
|
|
.fill_modes = drm_helper_probe_single_connector_modes,
|
|
.detect = dw_hdmi_connector_detect,
|
|
.destroy = dw_hdmi_connector_destroy,
|
|
.force = dw_hdmi_connector_force,
|
|
.reset = drm_atomic_helper_connector_reset,
|
|
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
|
|
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
|
|
};
|
|
|
|
static const struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = {
|
|
.get_modes = dw_hdmi_connector_get_modes,
|
|
.mode_valid = dw_hdmi_connector_mode_valid,
|
|
.best_encoder = drm_atomic_helper_best_encoder,
|
|
};
|
|
|
|
static const struct drm_bridge_funcs dw_hdmi_bridge_funcs = {
|
|
.enable = dw_hdmi_bridge_enable,
|
|
.disable = dw_hdmi_bridge_disable,
|
|
.mode_set = dw_hdmi_bridge_mode_set,
|
|
};
|
|
|
|
static irqreturn_t dw_hdmi_hardirq(int irq, void *dev_id)
|
|
{
|
|
struct dw_hdmi *hdmi = dev_id;
|
|
u8 intr_stat;
|
|
|
|
intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
|
|
if (intr_stat)
|
|
hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
|
|
|
|
return intr_stat ? IRQ_WAKE_THREAD : IRQ_NONE;
|
|
}
|
|
|
|
static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
|
|
{
|
|
struct dw_hdmi *hdmi = dev_id;
|
|
u8 intr_stat, phy_int_pol, phy_pol_mask, phy_stat;
|
|
|
|
intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
|
|
phy_int_pol = hdmi_readb(hdmi, HDMI_PHY_POL0);
|
|
phy_stat = hdmi_readb(hdmi, HDMI_PHY_STAT0);
|
|
|
|
phy_pol_mask = 0;
|
|
if (intr_stat & HDMI_IH_PHY_STAT0_HPD)
|
|
phy_pol_mask |= HDMI_PHY_HPD;
|
|
if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE0)
|
|
phy_pol_mask |= HDMI_PHY_RX_SENSE0;
|
|
if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE1)
|
|
phy_pol_mask |= HDMI_PHY_RX_SENSE1;
|
|
if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE2)
|
|
phy_pol_mask |= HDMI_PHY_RX_SENSE2;
|
|
if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE3)
|
|
phy_pol_mask |= HDMI_PHY_RX_SENSE3;
|
|
|
|
if (phy_pol_mask)
|
|
hdmi_modb(hdmi, ~phy_int_pol, phy_pol_mask, HDMI_PHY_POL0);
|
|
|
|
/*
|
|
* RX sense tells us whether the TDMS transmitters are detecting
|
|
* load - in other words, there's something listening on the
|
|
* other end of the link. Use this to decide whether we should
|
|
* power on the phy as HPD may be toggled by the sink to merely
|
|
* ask the source to re-read the EDID.
|
|
*/
|
|
if (intr_stat &
|
|
(HDMI_IH_PHY_STAT0_RX_SENSE | HDMI_IH_PHY_STAT0_HPD)) {
|
|
mutex_lock(&hdmi->mutex);
|
|
if (!hdmi->disabled && !hdmi->force) {
|
|
/*
|
|
* If the RX sense status indicates we're disconnected,
|
|
* clear the software rxsense status.
|
|
*/
|
|
if (!(phy_stat & HDMI_PHY_RX_SENSE))
|
|
hdmi->rxsense = false;
|
|
|
|
/*
|
|
* Only set the software rxsense status when both
|
|
* rxsense and hpd indicates we're connected.
|
|
* This avoids what seems to be bad behaviour in
|
|
* at least iMX6S versions of the phy.
|
|
*/
|
|
if (phy_stat & HDMI_PHY_HPD)
|
|
hdmi->rxsense = true;
|
|
|
|
dw_hdmi_update_power(hdmi);
|
|
dw_hdmi_update_phy_mask(hdmi);
|
|
}
|
|
mutex_unlock(&hdmi->mutex);
|
|
}
|
|
|
|
if (intr_stat & HDMI_IH_PHY_STAT0_HPD) {
|
|
dev_dbg(hdmi->dev, "EVENT=%s\n",
|
|
phy_int_pol & HDMI_PHY_HPD ? "plugin" : "plugout");
|
|
drm_helper_hpd_irq_event(hdmi->bridge->dev);
|
|
}
|
|
|
|
hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0);
|
|
hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE),
|
|
HDMI_IH_MUTE_PHY_STAT0);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int dw_hdmi_register(struct drm_device *drm, struct dw_hdmi *hdmi)
|
|
{
|
|
struct drm_encoder *encoder = hdmi->encoder;
|
|
struct drm_bridge *bridge;
|
|
int ret;
|
|
|
|
bridge = devm_kzalloc(drm->dev, sizeof(*bridge), GFP_KERNEL);
|
|
if (!bridge) {
|
|
DRM_ERROR("Failed to allocate drm bridge\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
hdmi->bridge = bridge;
|
|
bridge->driver_private = hdmi;
|
|
bridge->funcs = &dw_hdmi_bridge_funcs;
|
|
ret = drm_bridge_attach(drm, bridge);
|
|
if (ret) {
|
|
DRM_ERROR("Failed to initialize bridge with drm\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
encoder->bridge = bridge;
|
|
hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
|
|
|
|
drm_connector_helper_add(&hdmi->connector,
|
|
&dw_hdmi_connector_helper_funcs);
|
|
|
|
if (drm_core_check_feature(drm, DRIVER_ATOMIC))
|
|
drm_connector_init(drm, &hdmi->connector,
|
|
&dw_hdmi_atomic_connector_funcs,
|
|
DRM_MODE_CONNECTOR_HDMIA);
|
|
else
|
|
drm_connector_init(drm, &hdmi->connector,
|
|
&dw_hdmi_connector_funcs,
|
|
DRM_MODE_CONNECTOR_HDMIA);
|
|
|
|
drm_mode_connector_attach_encoder(&hdmi->connector, encoder);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dw_hdmi_bind(struct device *dev, struct device *master,
|
|
void *data, struct drm_encoder *encoder,
|
|
struct resource *iores, int irq,
|
|
const struct dw_hdmi_plat_data *plat_data)
|
|
{
|
|
struct drm_device *drm = data;
|
|
struct device_node *np = dev->of_node;
|
|
struct platform_device_info pdevinfo;
|
|
struct device_node *ddc_node;
|
|
struct dw_hdmi_audio_data audio;
|
|
struct dw_hdmi *hdmi;
|
|
int ret;
|
|
u32 val = 1;
|
|
|
|
hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
|
|
if (!hdmi)
|
|
return -ENOMEM;
|
|
|
|
hdmi->connector.interlace_allowed = 1;
|
|
|
|
hdmi->plat_data = plat_data;
|
|
hdmi->dev = dev;
|
|
hdmi->dev_type = plat_data->dev_type;
|
|
hdmi->sample_rate = 48000;
|
|
hdmi->encoder = encoder;
|
|
hdmi->disabled = true;
|
|
hdmi->rxsense = true;
|
|
hdmi->phy_mask = (u8)~(HDMI_PHY_HPD | HDMI_PHY_RX_SENSE);
|
|
|
|
mutex_init(&hdmi->mutex);
|
|
mutex_init(&hdmi->audio_mutex);
|
|
spin_lock_init(&hdmi->audio_lock);
|
|
|
|
of_property_read_u32(np, "reg-io-width", &val);
|
|
|
|
switch (val) {
|
|
case 4:
|
|
hdmi->write = dw_hdmi_writel;
|
|
hdmi->read = dw_hdmi_readl;
|
|
break;
|
|
case 1:
|
|
hdmi->write = dw_hdmi_writeb;
|
|
hdmi->read = dw_hdmi_readb;
|
|
break;
|
|
default:
|
|
dev_err(dev, "reg-io-width must be 1 or 4\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
|
|
if (ddc_node) {
|
|
hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node);
|
|
of_node_put(ddc_node);
|
|
if (!hdmi->ddc) {
|
|
dev_dbg(hdmi->dev, "failed to read ddc node\n");
|
|
return -EPROBE_DEFER;
|
|
}
|
|
|
|
} else {
|
|
dev_dbg(hdmi->dev, "no ddc property found\n");
|
|
}
|
|
|
|
hdmi->regs = devm_ioremap_resource(dev, iores);
|
|
if (IS_ERR(hdmi->regs))
|
|
return PTR_ERR(hdmi->regs);
|
|
|
|
hdmi->isfr_clk = devm_clk_get(hdmi->dev, "isfr");
|
|
if (IS_ERR(hdmi->isfr_clk)) {
|
|
ret = PTR_ERR(hdmi->isfr_clk);
|
|
dev_err(hdmi->dev, "Unable to get HDMI isfr clk: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = clk_prepare_enable(hdmi->isfr_clk);
|
|
if (ret) {
|
|
dev_err(hdmi->dev, "Cannot enable HDMI isfr clock: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
hdmi->iahb_clk = devm_clk_get(hdmi->dev, "iahb");
|
|
if (IS_ERR(hdmi->iahb_clk)) {
|
|
ret = PTR_ERR(hdmi->iahb_clk);
|
|
dev_err(hdmi->dev, "Unable to get HDMI iahb clk: %d\n", ret);
|
|
goto err_isfr;
|
|
}
|
|
|
|
ret = clk_prepare_enable(hdmi->iahb_clk);
|
|
if (ret) {
|
|
dev_err(hdmi->dev, "Cannot enable HDMI iahb clock: %d\n", ret);
|
|
goto err_isfr;
|
|
}
|
|
|
|
/* Product and revision IDs */
|
|
dev_info(dev,
|
|
"Detected HDMI controller 0x%x:0x%x:0x%x:0x%x\n",
|
|
hdmi_readb(hdmi, HDMI_DESIGN_ID),
|
|
hdmi_readb(hdmi, HDMI_REVISION_ID),
|
|
hdmi_readb(hdmi, HDMI_PRODUCT_ID0),
|
|
hdmi_readb(hdmi, HDMI_PRODUCT_ID1));
|
|
|
|
initialize_hdmi_ih_mutes(hdmi);
|
|
|
|
ret = devm_request_threaded_irq(dev, irq, dw_hdmi_hardirq,
|
|
dw_hdmi_irq, IRQF_SHARED,
|
|
dev_name(dev), hdmi);
|
|
if (ret)
|
|
goto err_iahb;
|
|
|
|
/*
|
|
* To prevent overflows in HDMI_IH_FC_STAT2, set the clk regenerator
|
|
* N and cts values before enabling phy
|
|
*/
|
|
hdmi_init_clk_regenerator(hdmi);
|
|
|
|
/*
|
|
* Configure registers related to HDMI interrupt
|
|
* generation before registering IRQ.
|
|
*/
|
|
hdmi_writeb(hdmi, HDMI_PHY_HPD | HDMI_PHY_RX_SENSE, HDMI_PHY_POL0);
|
|
|
|
/* Clear Hotplug interrupts */
|
|
hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE,
|
|
HDMI_IH_PHY_STAT0);
|
|
|
|
ret = dw_hdmi_fb_registered(hdmi);
|
|
if (ret)
|
|
goto err_iahb;
|
|
|
|
ret = dw_hdmi_register(drm, hdmi);
|
|
if (ret)
|
|
goto err_iahb;
|
|
|
|
/* Unmute interrupts */
|
|
hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE),
|
|
HDMI_IH_MUTE_PHY_STAT0);
|
|
|
|
memset(&pdevinfo, 0, sizeof(pdevinfo));
|
|
pdevinfo.parent = dev;
|
|
pdevinfo.id = PLATFORM_DEVID_AUTO;
|
|
|
|
if (hdmi_readb(hdmi, HDMI_CONFIG1_ID) & HDMI_CONFIG1_AHB) {
|
|
audio.phys = iores->start;
|
|
audio.base = hdmi->regs;
|
|
audio.irq = irq;
|
|
audio.hdmi = hdmi;
|
|
audio.eld = hdmi->connector.eld;
|
|
|
|
pdevinfo.name = "dw-hdmi-ahb-audio";
|
|
pdevinfo.data = &audio;
|
|
pdevinfo.size_data = sizeof(audio);
|
|
pdevinfo.dma_mask = DMA_BIT_MASK(32);
|
|
hdmi->audio = platform_device_register_full(&pdevinfo);
|
|
}
|
|
|
|
dev_set_drvdata(dev, hdmi);
|
|
|
|
return 0;
|
|
|
|
err_iahb:
|
|
clk_disable_unprepare(hdmi->iahb_clk);
|
|
err_isfr:
|
|
clk_disable_unprepare(hdmi->isfr_clk);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(dw_hdmi_bind);
|
|
|
|
void dw_hdmi_unbind(struct device *dev, struct device *master, void *data)
|
|
{
|
|
struct dw_hdmi *hdmi = dev_get_drvdata(dev);
|
|
|
|
if (hdmi->audio && !IS_ERR(hdmi->audio))
|
|
platform_device_unregister(hdmi->audio);
|
|
|
|
/* Disable all interrupts */
|
|
hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
|
|
|
|
hdmi->connector.funcs->destroy(&hdmi->connector);
|
|
hdmi->encoder->funcs->destroy(hdmi->encoder);
|
|
|
|
clk_disable_unprepare(hdmi->iahb_clk);
|
|
clk_disable_unprepare(hdmi->isfr_clk);
|
|
i2c_put_adapter(hdmi->ddc);
|
|
}
|
|
EXPORT_SYMBOL_GPL(dw_hdmi_unbind);
|
|
|
|
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
|
|
MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
|
|
MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
|
|
MODULE_DESCRIPTION("DW HDMI transmitter driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:dw-hdmi");
|