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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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drm: sun4i: Add composite output
Some Allwinner SoCs have an IP called the TV encoder that is used to output composite and VGA signals. In such a case, we need to use the second TCON channel. Add support for that TV encoder. Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Maxime Ripard
parent
29e57fab97
commit
03c4c71d25
@ -9,3 +9,5 @@ sun4i-tcon-y += sun4i_dotclock.o
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obj-$(CONFIG_DRM_SUN4I) += sun4i-drm.o sun4i-tcon.o
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obj-$(CONFIG_DRM_SUN4I) += sun4i_backend.o
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obj-$(CONFIG_DRM_SUN4I) += sun4i_tv.o
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621
drivers/gpu/drm/sun4i/sun4i_tv.c
Normal file
621
drivers/gpu/drm/sun4i/sun4i_tv.c
Normal file
@ -0,0 +1,621 @@
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/*
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* Copyright (C) 2015 Free Electrons
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* Copyright (C) 2015 NextThing Co
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*
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* Maxime Ripard <maxime.ripard@free-electrons.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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#include <linux/clk.h>
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#include <linux/component.h>
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#include <linux/of_address.h>
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#include <linux/regmap.h>
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#include <linux/reset.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_panel.h>
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#include "sun4i_backend.h"
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#include "sun4i_drv.h"
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#include "sun4i_tcon.h"
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#define SUN4I_TVE_EN_REG 0x000
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#define SUN4I_TVE_EN_DAC_MAP_MASK GENMASK(19, 4)
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#define SUN4I_TVE_EN_DAC_MAP(dac, out) (((out) & 0xf) << (dac + 1) * 4)
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#define SUN4I_TVE_EN_ENABLE BIT(0)
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#define SUN4I_TVE_CFG0_REG 0x004
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#define SUN4I_TVE_CFG0_DAC_CONTROL_54M BIT(26)
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#define SUN4I_TVE_CFG0_CORE_DATAPATH_54M BIT(25)
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#define SUN4I_TVE_CFG0_CORE_CONTROL_54M BIT(24)
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#define SUN4I_TVE_CFG0_YC_EN BIT(17)
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#define SUN4I_TVE_CFG0_COMP_EN BIT(16)
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#define SUN4I_TVE_CFG0_RES(x) ((x) & 0xf)
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#define SUN4I_TVE_CFG0_RES_480i SUN4I_TVE_CFG0_RES(0)
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#define SUN4I_TVE_CFG0_RES_576i SUN4I_TVE_CFG0_RES(1)
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#define SUN4I_TVE_DAC0_REG 0x008
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#define SUN4I_TVE_DAC0_CLOCK_INVERT BIT(24)
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#define SUN4I_TVE_DAC0_LUMA(x) (((x) & 3) << 20)
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#define SUN4I_TVE_DAC0_LUMA_0_4 SUN4I_TVE_DAC0_LUMA(3)
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#define SUN4I_TVE_DAC0_CHROMA(x) (((x) & 3) << 18)
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#define SUN4I_TVE_DAC0_CHROMA_0_75 SUN4I_TVE_DAC0_CHROMA(3)
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#define SUN4I_TVE_DAC0_INTERNAL_DAC(x) (((x) & 3) << 16)
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#define SUN4I_TVE_DAC0_INTERNAL_DAC_37_5_OHMS SUN4I_TVE_DAC0_INTERNAL_DAC(3)
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#define SUN4I_TVE_DAC0_DAC_EN(dac) BIT(dac)
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#define SUN4I_TVE_NOTCH_REG 0x00c
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#define SUN4I_TVE_NOTCH_DAC0_TO_DAC_DLY(dac, x) ((4 - (x)) << (dac * 3))
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#define SUN4I_TVE_CHROMA_FREQ_REG 0x010
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#define SUN4I_TVE_PORCH_REG 0x014
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#define SUN4I_TVE_PORCH_BACK(x) ((x) << 16)
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#define SUN4I_TVE_PORCH_FRONT(x) (x)
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#define SUN4I_TVE_LINE_REG 0x01c
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#define SUN4I_TVE_LINE_FIRST(x) ((x) << 16)
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#define SUN4I_TVE_LINE_NUMBER(x) (x)
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#define SUN4I_TVE_LEVEL_REG 0x020
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#define SUN4I_TVE_LEVEL_BLANK(x) ((x) << 16)
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#define SUN4I_TVE_LEVEL_BLACK(x) (x)
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#define SUN4I_TVE_DAC1_REG 0x024
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#define SUN4I_TVE_DAC1_AMPLITUDE(dac, x) ((x) << (dac * 8))
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#define SUN4I_TVE_DETECT_STA_REG 0x038
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#define SUN4I_TVE_DETECT_STA_DAC(dac) BIT((dac * 8))
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#define SUN4I_TVE_DETECT_STA_UNCONNECTED 0
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#define SUN4I_TVE_DETECT_STA_CONNECTED 1
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#define SUN4I_TVE_DETECT_STA_GROUND 2
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#define SUN4I_TVE_CB_CR_LVL_REG 0x10c
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#define SUN4I_TVE_CB_CR_LVL_CR_BURST(x) ((x) << 8)
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#define SUN4I_TVE_CB_CR_LVL_CB_BURST(x) (x)
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#define SUN4I_TVE_TINT_BURST_PHASE_REG 0x110
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#define SUN4I_TVE_TINT_BURST_PHASE_CHROMA(x) (x)
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#define SUN4I_TVE_BURST_WIDTH_REG 0x114
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#define SUN4I_TVE_BURST_WIDTH_BREEZEWAY(x) ((x) << 16)
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#define SUN4I_TVE_BURST_WIDTH_BURST_WIDTH(x) ((x) << 8)
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#define SUN4I_TVE_BURST_WIDTH_HSYNC_WIDTH(x) (x)
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#define SUN4I_TVE_CB_CR_GAIN_REG 0x118
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#define SUN4I_TVE_CB_CR_GAIN_CR(x) ((x) << 8)
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#define SUN4I_TVE_CB_CR_GAIN_CB(x) (x)
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#define SUN4I_TVE_SYNC_VBI_REG 0x11c
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#define SUN4I_TVE_SYNC_VBI_SYNC(x) ((x) << 16)
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#define SUN4I_TVE_SYNC_VBI_VBLANK(x) (x)
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#define SUN4I_TVE_ACTIVE_LINE_REG 0x124
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#define SUN4I_TVE_ACTIVE_LINE(x) (x)
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#define SUN4I_TVE_CHROMA_REG 0x128
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#define SUN4I_TVE_CHROMA_COMP_GAIN(x) ((x) & 3)
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#define SUN4I_TVE_CHROMA_COMP_GAIN_50 SUN4I_TVE_CHROMA_COMP_GAIN(2)
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#define SUN4I_TVE_12C_REG 0x12c
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#define SUN4I_TVE_12C_NOTCH_WIDTH_WIDE BIT(8)
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#define SUN4I_TVE_12C_COMP_YUV_EN BIT(0)
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#define SUN4I_TVE_RESYNC_REG 0x130
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#define SUN4I_TVE_RESYNC_FIELD BIT(31)
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#define SUN4I_TVE_RESYNC_LINE(x) ((x) << 16)
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#define SUN4I_TVE_RESYNC_PIXEL(x) (x)
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#define SUN4I_TVE_SLAVE_REG 0x134
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#define SUN4I_TVE_WSS_DATA2_REG 0x244
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struct color_gains {
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u16 cb;
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u16 cr;
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};
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struct burst_levels {
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u16 cb;
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u16 cr;
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};
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struct video_levels {
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u16 black;
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u16 blank;
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};
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struct resync_parameters {
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bool field;
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u16 line;
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u16 pixel;
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};
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struct tv_mode {
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char *name;
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u32 mode;
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u32 chroma_freq;
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u16 back_porch;
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u16 front_porch;
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u16 line_number;
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u16 vblank_level;
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u32 hdisplay;
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u16 hfront_porch;
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u16 hsync_len;
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u16 hback_porch;
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u32 vdisplay;
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u16 vfront_porch;
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u16 vsync_len;
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u16 vback_porch;
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bool yc_en;
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bool dac3_en;
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bool dac_bit25_en;
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struct color_gains *color_gains;
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struct burst_levels *burst_levels;
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struct video_levels *video_levels;
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struct resync_parameters *resync_params;
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};
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struct sun4i_tv {
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struct drm_connector connector;
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struct drm_encoder encoder;
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struct clk *clk;
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struct regmap *regs;
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struct reset_control *reset;
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struct sun4i_drv *drv;
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};
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struct tv_mode tv_modes[] = {
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};
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static inline struct sun4i_tv *
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drm_encoder_to_sun4i_tv(struct drm_encoder *encoder)
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{
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return container_of(encoder, struct sun4i_tv,
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encoder);
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}
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static inline struct sun4i_tv *
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drm_connector_to_sun4i_tv(struct drm_connector *connector)
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{
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return container_of(connector, struct sun4i_tv,
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connector);
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}
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/*
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* FIXME: If only the drm_display_mode private field was usable, this
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* could go away...
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*
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* So far, it doesn't seem to be preserved when the mode is passed by
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* to mode_set for some reason.
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*/
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static struct tv_mode *sun4i_tv_find_tv_by_mode(struct drm_display_mode *mode)
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{
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int i;
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/* First try to identify the mode by name */
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for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
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struct tv_mode *tv_mode = &tv_modes[i];
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DRM_DEBUG_DRIVER("Comparing mode %s vs %s",
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mode->name, tv_mode->name);
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if (!strcmp(mode->name, tv_mode->name))
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return tv_mode;
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}
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/* Then by number of lines */
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for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
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struct tv_mode *tv_mode = &tv_modes[i];
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DRM_DEBUG_DRIVER("Comparing mode %s vs %s (X: %d vs %d)",
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mode->name, tv_mode->name,
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mode->vdisplay, tv_mode->vdisplay);
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if (mode->vdisplay == tv_mode->vdisplay)
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return tv_mode;
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}
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return NULL;
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}
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static void sun4i_tv_mode_to_drm_mode(struct tv_mode *tv_mode,
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struct drm_display_mode *mode)
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{
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DRM_DEBUG_DRIVER("Creating mode %s\n", mode->name);
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mode->type = DRM_MODE_TYPE_DRIVER;
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mode->clock = 13500;
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mode->flags = DRM_MODE_FLAG_INTERLACE;
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mode->hdisplay = tv_mode->hdisplay;
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mode->hsync_start = mode->hdisplay + tv_mode->hfront_porch;
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mode->hsync_end = mode->hsync_start + tv_mode->hsync_len;
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mode->htotal = mode->hsync_end + tv_mode->hback_porch;
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mode->vdisplay = tv_mode->vdisplay;
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mode->vsync_start = mode->vdisplay + tv_mode->vfront_porch;
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mode->vsync_end = mode->vsync_start + tv_mode->vsync_len;
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mode->vtotal = mode->vsync_end + tv_mode->vback_porch;
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}
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static int sun4i_tv_atomic_check(struct drm_encoder *encoder,
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struct drm_crtc_state *crtc_state,
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struct drm_connector_state *conn_state)
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{
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return 0;
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}
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static void sun4i_tv_disable(struct drm_encoder *encoder)
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{
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struct sun4i_tv *tv = drm_encoder_to_sun4i_tv(encoder);
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struct sun4i_drv *drv = tv->drv;
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struct sun4i_tcon *tcon = drv->tcon;
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DRM_DEBUG_DRIVER("Disabling the TV Output\n");
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sun4i_tcon_channel_disable(tcon, 1);
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regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG,
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SUN4I_TVE_EN_ENABLE,
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0);
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sun4i_backend_disable_color_correction(drv->backend);
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}
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static void sun4i_tv_enable(struct drm_encoder *encoder)
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{
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struct sun4i_tv *tv = drm_encoder_to_sun4i_tv(encoder);
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struct sun4i_drv *drv = tv->drv;
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struct sun4i_tcon *tcon = drv->tcon;
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DRM_DEBUG_DRIVER("Enabling the TV Output\n");
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sun4i_backend_apply_color_correction(drv->backend);
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regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG,
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SUN4I_TVE_EN_ENABLE,
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SUN4I_TVE_EN_ENABLE);
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sun4i_tcon_channel_enable(tcon, 1);
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}
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static void sun4i_tv_mode_set(struct drm_encoder *encoder,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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struct sun4i_tv *tv = drm_encoder_to_sun4i_tv(encoder);
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struct sun4i_drv *drv = tv->drv;
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struct sun4i_tcon *tcon = drv->tcon;
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struct tv_mode *tv_mode = sun4i_tv_find_tv_by_mode(mode);
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sun4i_tcon1_mode_set(tcon, mode);
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/* Enable and map the DAC to the output */
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regmap_update_bits(tv->regs, SUN4I_TVE_EN_REG,
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SUN4I_TVE_EN_DAC_MAP_MASK,
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SUN4I_TVE_EN_DAC_MAP(0, 1) |
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SUN4I_TVE_EN_DAC_MAP(1, 2) |
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SUN4I_TVE_EN_DAC_MAP(2, 3) |
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SUN4I_TVE_EN_DAC_MAP(3, 4));
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/* Set PAL settings */
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regmap_write(tv->regs, SUN4I_TVE_CFG0_REG,
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tv_mode->mode |
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(tv_mode->yc_en ? SUN4I_TVE_CFG0_YC_EN : 0) |
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SUN4I_TVE_CFG0_COMP_EN |
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SUN4I_TVE_CFG0_DAC_CONTROL_54M |
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SUN4I_TVE_CFG0_CORE_DATAPATH_54M |
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SUN4I_TVE_CFG0_CORE_CONTROL_54M);
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/* Configure the DAC for a composite output */
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regmap_write(tv->regs, SUN4I_TVE_DAC0_REG,
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SUN4I_TVE_DAC0_DAC_EN(0) |
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(tv_mode->dac3_en ? SUN4I_TVE_DAC0_DAC_EN(3) : 0) |
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SUN4I_TVE_DAC0_INTERNAL_DAC_37_5_OHMS |
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SUN4I_TVE_DAC0_CHROMA_0_75 |
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SUN4I_TVE_DAC0_LUMA_0_4 |
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SUN4I_TVE_DAC0_CLOCK_INVERT |
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(tv_mode->dac_bit25_en ? BIT(25) : 0) |
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BIT(30));
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/* Configure the sample delay between DAC0 and the other DAC */
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regmap_write(tv->regs, SUN4I_TVE_NOTCH_REG,
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SUN4I_TVE_NOTCH_DAC0_TO_DAC_DLY(1, 0) |
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SUN4I_TVE_NOTCH_DAC0_TO_DAC_DLY(2, 0));
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regmap_write(tv->regs, SUN4I_TVE_CHROMA_FREQ_REG,
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tv_mode->chroma_freq);
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/* Set the front and back porch */
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regmap_write(tv->regs, SUN4I_TVE_PORCH_REG,
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SUN4I_TVE_PORCH_BACK(tv_mode->back_porch) |
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SUN4I_TVE_PORCH_FRONT(tv_mode->front_porch));
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/* Set the lines setup */
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regmap_write(tv->regs, SUN4I_TVE_LINE_REG,
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SUN4I_TVE_LINE_FIRST(22) |
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SUN4I_TVE_LINE_NUMBER(tv_mode->line_number));
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regmap_write(tv->regs, SUN4I_TVE_LEVEL_REG,
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SUN4I_TVE_LEVEL_BLANK(tv_mode->video_levels->blank) |
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SUN4I_TVE_LEVEL_BLACK(tv_mode->video_levels->black));
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regmap_write(tv->regs, SUN4I_TVE_DAC1_REG,
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SUN4I_TVE_DAC1_AMPLITUDE(0, 0x18) |
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SUN4I_TVE_DAC1_AMPLITUDE(1, 0x18) |
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SUN4I_TVE_DAC1_AMPLITUDE(2, 0x18) |
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SUN4I_TVE_DAC1_AMPLITUDE(3, 0x18));
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regmap_write(tv->regs, SUN4I_TVE_CB_CR_LVL_REG,
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SUN4I_TVE_CB_CR_LVL_CB_BURST(tv_mode->burst_levels->cb) |
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SUN4I_TVE_CB_CR_LVL_CR_BURST(tv_mode->burst_levels->cr));
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/* Set burst width for a composite output */
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regmap_write(tv->regs, SUN4I_TVE_BURST_WIDTH_REG,
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SUN4I_TVE_BURST_WIDTH_HSYNC_WIDTH(126) |
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SUN4I_TVE_BURST_WIDTH_BURST_WIDTH(68) |
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SUN4I_TVE_BURST_WIDTH_BREEZEWAY(22));
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regmap_write(tv->regs, SUN4I_TVE_CB_CR_GAIN_REG,
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SUN4I_TVE_CB_CR_GAIN_CB(tv_mode->color_gains->cb) |
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SUN4I_TVE_CB_CR_GAIN_CR(tv_mode->color_gains->cr));
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regmap_write(tv->regs, SUN4I_TVE_SYNC_VBI_REG,
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SUN4I_TVE_SYNC_VBI_SYNC(0x10) |
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SUN4I_TVE_SYNC_VBI_VBLANK(tv_mode->vblank_level));
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regmap_write(tv->regs, SUN4I_TVE_ACTIVE_LINE_REG,
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SUN4I_TVE_ACTIVE_LINE(1440));
|
||||
|
||||
/* Set composite chroma gain to 50 % */
|
||||
regmap_write(tv->regs, SUN4I_TVE_CHROMA_REG,
|
||||
SUN4I_TVE_CHROMA_COMP_GAIN_50);
|
||||
|
||||
regmap_write(tv->regs, SUN4I_TVE_12C_REG,
|
||||
SUN4I_TVE_12C_COMP_YUV_EN |
|
||||
SUN4I_TVE_12C_NOTCH_WIDTH_WIDE);
|
||||
|
||||
regmap_write(tv->regs, SUN4I_TVE_RESYNC_REG,
|
||||
SUN4I_TVE_RESYNC_PIXEL(tv_mode->resync_params->pixel) |
|
||||
SUN4I_TVE_RESYNC_LINE(tv_mode->resync_params->line) |
|
||||
(tv_mode->resync_params->field ?
|
||||
SUN4I_TVE_RESYNC_FIELD : 0));
|
||||
|
||||
regmap_write(tv->regs, SUN4I_TVE_SLAVE_REG, 0);
|
||||
|
||||
clk_set_rate(tcon->sclk1, mode->crtc_clock * 1000);
|
||||
}
|
||||
|
||||
static struct drm_encoder_helper_funcs sun4i_tv_helper_funcs = {
|
||||
.atomic_check = sun4i_tv_atomic_check,
|
||||
.disable = sun4i_tv_disable,
|
||||
.enable = sun4i_tv_enable,
|
||||
.mode_set = sun4i_tv_mode_set,
|
||||
};
|
||||
|
||||
static void sun4i_tv_destroy(struct drm_encoder *encoder)
|
||||
{
|
||||
drm_encoder_cleanup(encoder);
|
||||
}
|
||||
|
||||
static struct drm_encoder_funcs sun4i_tv_funcs = {
|
||||
.destroy = sun4i_tv_destroy,
|
||||
};
|
||||
|
||||
static int sun4i_tv_comp_get_modes(struct drm_connector *connector)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
|
||||
struct drm_display_mode *mode = drm_mode_create(connector->dev);
|
||||
struct tv_mode *tv_mode = &tv_modes[i];
|
||||
|
||||
strcpy(mode->name, tv_mode->name);
|
||||
|
||||
sun4i_tv_mode_to_drm_mode(tv_mode, mode);
|
||||
drm_mode_probed_add(connector, mode);
|
||||
}
|
||||
|
||||
return i;
|
||||
}
|
||||
|
||||
static int sun4i_tv_comp_mode_valid(struct drm_connector *connector,
|
||||
struct drm_display_mode *mode)
|
||||
{
|
||||
/* TODO */
|
||||
return MODE_OK;
|
||||
}
|
||||
|
||||
static struct drm_encoder *
|
||||
sun4i_tv_comp_best_encoder(struct drm_connector *connector)
|
||||
{
|
||||
struct sun4i_tv *tv = drm_connector_to_sun4i_tv(connector);
|
||||
|
||||
return &tv->encoder;
|
||||
}
|
||||
|
||||
static struct drm_connector_helper_funcs sun4i_tv_comp_connector_helper_funcs = {
|
||||
.get_modes = sun4i_tv_comp_get_modes,
|
||||
.mode_valid = sun4i_tv_comp_mode_valid,
|
||||
.best_encoder = sun4i_tv_comp_best_encoder,
|
||||
};
|
||||
|
||||
static enum drm_connector_status
|
||||
sun4i_tv_comp_connector_detect(struct drm_connector *connector, bool force)
|
||||
{
|
||||
return connector_status_connected;
|
||||
}
|
||||
|
||||
static void
|
||||
sun4i_tv_comp_connector_destroy(struct drm_connector *connector)
|
||||
{
|
||||
drm_connector_cleanup(connector);
|
||||
}
|
||||
|
||||
static struct drm_connector_funcs sun4i_tv_comp_connector_funcs = {
|
||||
.dpms = drm_atomic_helper_connector_dpms,
|
||||
.detect = sun4i_tv_comp_connector_detect,
|
||||
.fill_modes = drm_helper_probe_single_connector_modes,
|
||||
.destroy = sun4i_tv_comp_connector_destroy,
|
||||
.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 struct regmap_config sun4i_tv_regmap_config = {
|
||||
.reg_bits = 32,
|
||||
.val_bits = 32,
|
||||
.reg_stride = 4,
|
||||
.max_register = SUN4I_TVE_WSS_DATA2_REG,
|
||||
.name = "tv-encoder",
|
||||
};
|
||||
|
||||
static int sun4i_tv_bind(struct device *dev, struct device *master,
|
||||
void *data)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
struct drm_device *drm = data;
|
||||
struct sun4i_drv *drv = drm->dev_private;
|
||||
struct sun4i_tv *tv;
|
||||
struct resource *res;
|
||||
void __iomem *regs;
|
||||
int ret;
|
||||
|
||||
tv = devm_kzalloc(dev, sizeof(*tv), GFP_KERNEL);
|
||||
if (!tv)
|
||||
return -ENOMEM;
|
||||
tv->drv = drv;
|
||||
dev_set_drvdata(dev, tv);
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
regs = devm_ioremap_resource(dev, res);
|
||||
if (IS_ERR(regs)) {
|
||||
dev_err(dev, "Couldn't map the TV encoder registers\n");
|
||||
return PTR_ERR(regs);
|
||||
}
|
||||
|
||||
tv->regs = devm_regmap_init_mmio(dev, regs,
|
||||
&sun4i_tv_regmap_config);
|
||||
if (IS_ERR(tv->regs)) {
|
||||
dev_err(dev, "Couldn't create the TV encoder regmap\n");
|
||||
return PTR_ERR(tv->regs);
|
||||
}
|
||||
|
||||
tv->reset = devm_reset_control_get(dev, NULL);
|
||||
if (IS_ERR(tv->reset)) {
|
||||
dev_err(dev, "Couldn't get our reset line\n");
|
||||
return PTR_ERR(tv->reset);
|
||||
}
|
||||
|
||||
ret = reset_control_deassert(tv->reset);
|
||||
if (ret) {
|
||||
dev_err(dev, "Couldn't deassert our reset line\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
tv->clk = devm_clk_get(dev, NULL);
|
||||
if (IS_ERR(tv->clk)) {
|
||||
dev_err(dev, "Couldn't get the TV encoder clock\n");
|
||||
ret = PTR_ERR(tv->clk);
|
||||
goto err_assert_reset;
|
||||
}
|
||||
clk_prepare_enable(tv->clk);
|
||||
|
||||
drm_encoder_helper_add(&tv->encoder,
|
||||
&sun4i_tv_helper_funcs);
|
||||
ret = drm_encoder_init(drm,
|
||||
&tv->encoder,
|
||||
&sun4i_tv_funcs,
|
||||
DRM_MODE_ENCODER_TVDAC,
|
||||
NULL);
|
||||
if (ret) {
|
||||
dev_err(dev, "Couldn't initialise the TV encoder\n");
|
||||
goto err_disable_clk;
|
||||
}
|
||||
|
||||
tv->encoder.possible_crtcs = BIT(0);
|
||||
|
||||
drm_connector_helper_add(&tv->connector,
|
||||
&sun4i_tv_comp_connector_helper_funcs);
|
||||
ret = drm_connector_init(drm, &tv->connector,
|
||||
&sun4i_tv_comp_connector_funcs,
|
||||
DRM_MODE_CONNECTOR_Composite);
|
||||
if (ret) {
|
||||
dev_err(dev,
|
||||
"Couldn't initialise the Composite connector\n");
|
||||
goto err_cleanup_connector;
|
||||
}
|
||||
tv->connector.interlace_allowed = true;
|
||||
|
||||
drm_mode_connector_attach_encoder(&tv->connector, &tv->encoder);
|
||||
|
||||
return 0;
|
||||
|
||||
err_cleanup_connector:
|
||||
drm_encoder_cleanup(&tv->encoder);
|
||||
err_disable_clk:
|
||||
clk_disable_unprepare(tv->clk);
|
||||
err_assert_reset:
|
||||
reset_control_assert(tv->reset);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void sun4i_tv_unbind(struct device *dev, struct device *master,
|
||||
void *data)
|
||||
{
|
||||
struct sun4i_tv *tv = dev_get_drvdata(dev);
|
||||
|
||||
drm_connector_cleanup(&tv->connector);
|
||||
drm_encoder_cleanup(&tv->encoder);
|
||||
clk_disable_unprepare(tv->clk);
|
||||
}
|
||||
|
||||
static struct component_ops sun4i_tv_ops = {
|
||||
.bind = sun4i_tv_bind,
|
||||
.unbind = sun4i_tv_unbind,
|
||||
};
|
||||
|
||||
static int sun4i_tv_probe(struct platform_device *pdev)
|
||||
{
|
||||
return component_add(&pdev->dev, &sun4i_tv_ops);
|
||||
}
|
||||
|
||||
static int sun4i_tv_remove(struct platform_device *pdev)
|
||||
{
|
||||
component_del(&pdev->dev, &sun4i_tv_ops);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id sun4i_tv_of_table[] = {
|
||||
{ .compatible = "allwinner,sun4i-a10-tv-encoder" },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, sun4i_tv_of_table);
|
||||
|
||||
static struct platform_driver sun4i_tv_platform_driver = {
|
||||
.probe = sun4i_tv_probe,
|
||||
.remove = sun4i_tv_remove,
|
||||
.driver = {
|
||||
.name = "sun4i-tve",
|
||||
.of_match_table = sun4i_tv_of_table,
|
||||
},
|
||||
};
|
||||
module_platform_driver(sun4i_tv_platform_driver);
|
||||
|
||||
MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
|
||||
MODULE_DESCRIPTION("Allwinner A10 TV Encoder Driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
Loading…
Reference in New Issue
Block a user