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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 12:49:08 +07:00
1b6fba458c
If the device tree for a board did not specify a cec clock, then adv7511_cec_init would return an error, which would cause adv7511_probe() to fail and thus there is no HDMI output. There is no need to have adv7511_probe() fail if the CEC initialization fails, so just change adv7511_cec_init() to a void function. In addition, adv7511_cec_init() should just return silently if the cec clock isn't found and show a message for any other errors. An otherwise correct cleanup patch from Dan Carpenter turned this broken failure handling into a kernel Oops, so bisection points to commit7af35b0add("drm/kirin: Checking for IS_ERR() instead of NULL") rather than3b1b975003("drm: adv7511/33: add HDMI CEC support"). Based on earlier patches from Arnd and John. Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Cc: Xinliang Liu <xinliang.liu@linaro.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: Archit Taneja <architt@codeaurora.org> Cc: John Stultz <john.stultz@linaro.org> Link: https://bugs.linaro.org/show_bug.cgi?id=3345 Link: https://lkft.validation.linaro.org/scheduler/job/48017#L3551 Fixes:7af35b0add("drm/kirin: Checking for IS_ERR() instead of NULL") Fixes:3b1b975003("drm: adv7511/33: add HDMI CEC support") Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Tested-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Archit Taneja <architt@codeaurora.org> Link: https://patchwork.freedesktop.org/patch/msgid/9097b2a4-b6b9-5fca-e039-0a17694b1143@xs4all.nl
1298 lines
34 KiB
C
1298 lines
34 KiB
C
/*
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* Analog Devices ADV7511 HDMI transmitter driver
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*
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* Copyright 2012 Analog Devices Inc.
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*
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* Licensed under the GPL-2.
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*/
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#include <linux/device.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/slab.h>
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#include <linux/clk.h>
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#include <drm/drmP.h>
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_edid.h>
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#include <media/cec.h>
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#include "adv7511.h"
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/* ADI recommended values for proper operation. */
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static const struct reg_sequence adv7511_fixed_registers[] = {
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{ 0x98, 0x03 },
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{ 0x9a, 0xe0 },
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{ 0x9c, 0x30 },
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{ 0x9d, 0x61 },
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{ 0xa2, 0xa4 },
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{ 0xa3, 0xa4 },
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{ 0xe0, 0xd0 },
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{ 0xf9, 0x00 },
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{ 0x55, 0x02 },
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};
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/* -----------------------------------------------------------------------------
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* Register access
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*/
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static const uint8_t adv7511_register_defaults[] = {
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0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00 */
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0x00, 0x00, 0x01, 0x0e, 0xbc, 0x18, 0x01, 0x13,
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0x25, 0x37, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 10 */
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0x46, 0x62, 0x04, 0xa8, 0x00, 0x00, 0x1c, 0x84,
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0x1c, 0xbf, 0x04, 0xa8, 0x1e, 0x70, 0x02, 0x1e, /* 20 */
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0x00, 0x00, 0x04, 0xa8, 0x08, 0x12, 0x1b, 0xac,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 30 */
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0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0xb0,
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0x00, 0x50, 0x90, 0x7e, 0x79, 0x70, 0x00, 0x00, /* 40 */
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0x00, 0xa8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x02, 0x0d, 0x00, 0x00, 0x00, 0x00, /* 50 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 60 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x01, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 70 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 80 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 90 */
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0x0b, 0x02, 0x00, 0x18, 0x5a, 0x60, 0x00, 0x00,
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0x00, 0x00, 0x80, 0x80, 0x08, 0x04, 0x00, 0x00, /* a0 */
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0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0x14,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* b0 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* c0 */
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0x00, 0x03, 0x00, 0x00, 0x02, 0x00, 0x01, 0x04,
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0x30, 0xff, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, /* d0 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01,
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0x80, 0x75, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, /* e0 */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x75, 0x11, 0x00, /* f0 */
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0x00, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static bool adv7511_register_volatile(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case ADV7511_REG_CHIP_REVISION:
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case ADV7511_REG_SPDIF_FREQ:
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case ADV7511_REG_CTS_AUTOMATIC1:
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case ADV7511_REG_CTS_AUTOMATIC2:
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case ADV7511_REG_VIC_DETECTED:
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case ADV7511_REG_VIC_SEND:
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case ADV7511_REG_AUX_VIC_DETECTED:
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case ADV7511_REG_STATUS:
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case ADV7511_REG_GC(1):
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case ADV7511_REG_INT(0):
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case ADV7511_REG_INT(1):
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case ADV7511_REG_PLL_STATUS:
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case ADV7511_REG_AN(0):
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case ADV7511_REG_AN(1):
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case ADV7511_REG_AN(2):
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case ADV7511_REG_AN(3):
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case ADV7511_REG_AN(4):
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case ADV7511_REG_AN(5):
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case ADV7511_REG_AN(6):
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case ADV7511_REG_AN(7):
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case ADV7511_REG_HDCP_STATUS:
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case ADV7511_REG_BCAPS:
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case ADV7511_REG_BKSV(0):
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case ADV7511_REG_BKSV(1):
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case ADV7511_REG_BKSV(2):
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case ADV7511_REG_BKSV(3):
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case ADV7511_REG_BKSV(4):
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case ADV7511_REG_DDC_STATUS:
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case ADV7511_REG_EDID_READ_CTRL:
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case ADV7511_REG_BSTATUS(0):
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case ADV7511_REG_BSTATUS(1):
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case ADV7511_REG_CHIP_ID_HIGH:
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case ADV7511_REG_CHIP_ID_LOW:
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return true;
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}
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return false;
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}
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static const struct regmap_config adv7511_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = 0xff,
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.cache_type = REGCACHE_RBTREE,
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.reg_defaults_raw = adv7511_register_defaults,
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.num_reg_defaults_raw = ARRAY_SIZE(adv7511_register_defaults),
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.volatile_reg = adv7511_register_volatile,
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};
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/* -----------------------------------------------------------------------------
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* Hardware configuration
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*/
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static void adv7511_set_colormap(struct adv7511 *adv7511, bool enable,
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const uint16_t *coeff,
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unsigned int scaling_factor)
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{
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unsigned int i;
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regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1),
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ADV7511_CSC_UPDATE_MODE, ADV7511_CSC_UPDATE_MODE);
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if (enable) {
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for (i = 0; i < 12; ++i) {
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regmap_update_bits(adv7511->regmap,
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ADV7511_REG_CSC_UPPER(i),
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0x1f, coeff[i] >> 8);
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regmap_write(adv7511->regmap,
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ADV7511_REG_CSC_LOWER(i),
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coeff[i] & 0xff);
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}
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}
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if (enable)
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regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0),
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0xe0, 0x80 | (scaling_factor << 5));
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else
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regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0),
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0x80, 0x00);
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regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1),
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ADV7511_CSC_UPDATE_MODE, 0);
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}
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static int adv7511_packet_enable(struct adv7511 *adv7511, unsigned int packet)
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{
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if (packet & 0xff)
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regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0,
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packet, 0xff);
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if (packet & 0xff00) {
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packet >>= 8;
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regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1,
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packet, 0xff);
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}
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return 0;
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}
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static int adv7511_packet_disable(struct adv7511 *adv7511, unsigned int packet)
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{
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if (packet & 0xff)
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regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0,
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packet, 0x00);
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if (packet & 0xff00) {
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packet >>= 8;
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regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1,
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packet, 0x00);
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}
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return 0;
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}
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/* Coefficients for adv7511 color space conversion */
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static const uint16_t adv7511_csc_ycbcr_to_rgb[] = {
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0x0734, 0x04ad, 0x0000, 0x1c1b,
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0x1ddc, 0x04ad, 0x1f24, 0x0135,
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0x0000, 0x04ad, 0x087c, 0x1b77,
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};
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static void adv7511_set_config_csc(struct adv7511 *adv7511,
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struct drm_connector *connector,
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bool rgb, bool hdmi_mode)
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{
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struct adv7511_video_config config;
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bool output_format_422, output_format_ycbcr;
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unsigned int mode;
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uint8_t infoframe[17];
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config.hdmi_mode = hdmi_mode;
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hdmi_avi_infoframe_init(&config.avi_infoframe);
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config.avi_infoframe.scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
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if (rgb) {
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config.csc_enable = false;
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config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB;
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} else {
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config.csc_scaling_factor = ADV7511_CSC_SCALING_4;
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config.csc_coefficents = adv7511_csc_ycbcr_to_rgb;
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if ((connector->display_info.color_formats &
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DRM_COLOR_FORMAT_YCRCB422) &&
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config.hdmi_mode) {
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config.csc_enable = false;
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config.avi_infoframe.colorspace =
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HDMI_COLORSPACE_YUV422;
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} else {
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config.csc_enable = true;
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config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB;
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}
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}
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if (config.hdmi_mode) {
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mode = ADV7511_HDMI_CFG_MODE_HDMI;
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switch (config.avi_infoframe.colorspace) {
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case HDMI_COLORSPACE_YUV444:
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output_format_422 = false;
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output_format_ycbcr = true;
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break;
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case HDMI_COLORSPACE_YUV422:
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output_format_422 = true;
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output_format_ycbcr = true;
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break;
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default:
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output_format_422 = false;
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output_format_ycbcr = false;
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break;
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}
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} else {
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mode = ADV7511_HDMI_CFG_MODE_DVI;
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output_format_422 = false;
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output_format_ycbcr = false;
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}
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adv7511_packet_disable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME);
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adv7511_set_colormap(adv7511, config.csc_enable,
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config.csc_coefficents,
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config.csc_scaling_factor);
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regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x81,
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(output_format_422 << 7) | output_format_ycbcr);
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regmap_update_bits(adv7511->regmap, ADV7511_REG_HDCP_HDMI_CFG,
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ADV7511_HDMI_CFG_MODE_MASK, mode);
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hdmi_avi_infoframe_pack(&config.avi_infoframe, infoframe,
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sizeof(infoframe));
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/* The AVI infoframe id is not configurable */
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regmap_bulk_write(adv7511->regmap, ADV7511_REG_AVI_INFOFRAME_VERSION,
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infoframe + 1, sizeof(infoframe) - 1);
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adv7511_packet_enable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME);
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}
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static void adv7511_set_link_config(struct adv7511 *adv7511,
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const struct adv7511_link_config *config)
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{
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/*
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* The input style values documented in the datasheet don't match the
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* hardware register field values :-(
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*/
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static const unsigned int input_styles[4] = { 0, 2, 1, 3 };
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unsigned int clock_delay;
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unsigned int color_depth;
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unsigned int input_id;
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clock_delay = (config->clock_delay + 1200) / 400;
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color_depth = config->input_color_depth == 8 ? 3
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: (config->input_color_depth == 10 ? 1 : 2);
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/* TODO Support input ID 6 */
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if (config->input_colorspace != HDMI_COLORSPACE_YUV422)
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input_id = config->input_clock == ADV7511_INPUT_CLOCK_DDR
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? 5 : 0;
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else if (config->input_clock == ADV7511_INPUT_CLOCK_DDR)
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input_id = config->embedded_sync ? 8 : 7;
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else if (config->input_clock == ADV7511_INPUT_CLOCK_2X)
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input_id = config->embedded_sync ? 4 : 3;
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else
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input_id = config->embedded_sync ? 2 : 1;
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regmap_update_bits(adv7511->regmap, ADV7511_REG_I2C_FREQ_ID_CFG, 0xf,
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input_id);
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regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x7e,
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(color_depth << 4) |
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(input_styles[config->input_style] << 2));
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regmap_write(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG2,
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config->input_justification << 3);
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regmap_write(adv7511->regmap, ADV7511_REG_TIMING_GEN_SEQ,
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config->sync_pulse << 2);
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regmap_write(adv7511->regmap, 0xba, clock_delay << 5);
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adv7511->embedded_sync = config->embedded_sync;
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adv7511->hsync_polarity = config->hsync_polarity;
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adv7511->vsync_polarity = config->vsync_polarity;
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adv7511->rgb = config->input_colorspace == HDMI_COLORSPACE_RGB;
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}
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static void __adv7511_power_on(struct adv7511 *adv7511)
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{
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adv7511->current_edid_segment = -1;
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regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
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ADV7511_POWER_POWER_DOWN, 0);
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if (adv7511->i2c_main->irq) {
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/*
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* Documentation says the INT_ENABLE registers are reset in
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* POWER_DOWN mode. My 7511w preserved the bits, however.
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* Still, let's be safe and stick to the documentation.
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*/
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regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0),
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ADV7511_INT0_EDID_READY | ADV7511_INT0_HPD);
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regmap_update_bits(adv7511->regmap,
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ADV7511_REG_INT_ENABLE(1),
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ADV7511_INT1_DDC_ERROR,
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ADV7511_INT1_DDC_ERROR);
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}
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/*
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* Per spec it is allowed to pulse the HPD signal to indicate that the
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* EDID information has changed. Some monitors do this when they wakeup
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* from standby or are enabled. When the HPD goes low the adv7511 is
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* reset and the outputs are disabled which might cause the monitor to
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* go to standby again. To avoid this we ignore the HPD pin for the
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* first few seconds after enabling the output.
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*/
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regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
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ADV7511_REG_POWER2_HPD_SRC_MASK,
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ADV7511_REG_POWER2_HPD_SRC_NONE);
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}
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static void adv7511_power_on(struct adv7511 *adv7511)
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{
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__adv7511_power_on(adv7511);
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/*
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* Most of the registers are reset during power down or when HPD is low.
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*/
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regcache_sync(adv7511->regmap);
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if (adv7511->type == ADV7533)
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adv7533_dsi_power_on(adv7511);
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adv7511->powered = true;
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}
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static void __adv7511_power_off(struct adv7511 *adv7511)
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{
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/* TODO: setup additional power down modes */
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regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
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ADV7511_POWER_POWER_DOWN,
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ADV7511_POWER_POWER_DOWN);
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regmap_update_bits(adv7511->regmap,
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ADV7511_REG_INT_ENABLE(1),
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ADV7511_INT1_DDC_ERROR, 0);
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regcache_mark_dirty(adv7511->regmap);
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}
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|
|
static void adv7511_power_off(struct adv7511 *adv7511)
|
|
{
|
|
__adv7511_power_off(adv7511);
|
|
if (adv7511->type == ADV7533)
|
|
adv7533_dsi_power_off(adv7511);
|
|
adv7511->powered = false;
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Interrupt and hotplug detection
|
|
*/
|
|
|
|
static bool adv7511_hpd(struct adv7511 *adv7511)
|
|
{
|
|
unsigned int irq0;
|
|
int ret;
|
|
|
|
ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
|
|
if (ret < 0)
|
|
return false;
|
|
|
|
if (irq0 & ADV7511_INT0_HPD) {
|
|
regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
|
|
ADV7511_INT0_HPD);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static void adv7511_hpd_work(struct work_struct *work)
|
|
{
|
|
struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
|
|
enum drm_connector_status status;
|
|
unsigned int val;
|
|
int ret;
|
|
|
|
ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
|
|
if (ret < 0)
|
|
status = connector_status_disconnected;
|
|
else if (val & ADV7511_STATUS_HPD)
|
|
status = connector_status_connected;
|
|
else
|
|
status = connector_status_disconnected;
|
|
|
|
if (adv7511->connector.status != status) {
|
|
adv7511->connector.status = status;
|
|
if (status == connector_status_disconnected)
|
|
cec_phys_addr_invalidate(adv7511->cec_adap);
|
|
drm_kms_helper_hotplug_event(adv7511->connector.dev);
|
|
}
|
|
}
|
|
|
|
static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
|
|
{
|
|
unsigned int irq0, irq1;
|
|
int ret;
|
|
|
|
ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(1), &irq1);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
regmap_write(adv7511->regmap, ADV7511_REG_INT(0), irq0);
|
|
regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1);
|
|
|
|
if (process_hpd && irq0 & ADV7511_INT0_HPD && adv7511->bridge.encoder)
|
|
schedule_work(&adv7511->hpd_work);
|
|
|
|
if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) {
|
|
adv7511->edid_read = true;
|
|
|
|
if (adv7511->i2c_main->irq)
|
|
wake_up_all(&adv7511->wq);
|
|
}
|
|
|
|
#ifdef CONFIG_DRM_I2C_ADV7511_CEC
|
|
adv7511_cec_irq_process(adv7511, irq1);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static irqreturn_t adv7511_irq_handler(int irq, void *devid)
|
|
{
|
|
struct adv7511 *adv7511 = devid;
|
|
int ret;
|
|
|
|
ret = adv7511_irq_process(adv7511, true);
|
|
return ret < 0 ? IRQ_NONE : IRQ_HANDLED;
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* EDID retrieval
|
|
*/
|
|
|
|
static int adv7511_wait_for_edid(struct adv7511 *adv7511, int timeout)
|
|
{
|
|
int ret;
|
|
|
|
if (adv7511->i2c_main->irq) {
|
|
ret = wait_event_interruptible_timeout(adv7511->wq,
|
|
adv7511->edid_read, msecs_to_jiffies(timeout));
|
|
} else {
|
|
for (; timeout > 0; timeout -= 25) {
|
|
ret = adv7511_irq_process(adv7511, false);
|
|
if (ret < 0)
|
|
break;
|
|
|
|
if (adv7511->edid_read)
|
|
break;
|
|
|
|
msleep(25);
|
|
}
|
|
}
|
|
|
|
return adv7511->edid_read ? 0 : -EIO;
|
|
}
|
|
|
|
static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block,
|
|
size_t len)
|
|
{
|
|
struct adv7511 *adv7511 = data;
|
|
struct i2c_msg xfer[2];
|
|
uint8_t offset;
|
|
unsigned int i;
|
|
int ret;
|
|
|
|
if (len > 128)
|
|
return -EINVAL;
|
|
|
|
if (adv7511->current_edid_segment != block / 2) {
|
|
unsigned int status;
|
|
|
|
ret = regmap_read(adv7511->regmap, ADV7511_REG_DDC_STATUS,
|
|
&status);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (status != 2) {
|
|
adv7511->edid_read = false;
|
|
regmap_write(adv7511->regmap, ADV7511_REG_EDID_SEGMENT,
|
|
block);
|
|
ret = adv7511_wait_for_edid(adv7511, 200);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
/* Break this apart, hopefully more I2C controllers will
|
|
* support 64 byte transfers than 256 byte transfers
|
|
*/
|
|
|
|
xfer[0].addr = adv7511->i2c_edid->addr;
|
|
xfer[0].flags = 0;
|
|
xfer[0].len = 1;
|
|
xfer[0].buf = &offset;
|
|
xfer[1].addr = adv7511->i2c_edid->addr;
|
|
xfer[1].flags = I2C_M_RD;
|
|
xfer[1].len = 64;
|
|
xfer[1].buf = adv7511->edid_buf;
|
|
|
|
offset = 0;
|
|
|
|
for (i = 0; i < 4; ++i) {
|
|
ret = i2c_transfer(adv7511->i2c_edid->adapter, xfer,
|
|
ARRAY_SIZE(xfer));
|
|
if (ret < 0)
|
|
return ret;
|
|
else if (ret != 2)
|
|
return -EIO;
|
|
|
|
xfer[1].buf += 64;
|
|
offset += 64;
|
|
}
|
|
|
|
adv7511->current_edid_segment = block / 2;
|
|
}
|
|
|
|
if (block % 2 == 0)
|
|
memcpy(buf, adv7511->edid_buf, len);
|
|
else
|
|
memcpy(buf, adv7511->edid_buf + 128, len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* ADV75xx helpers
|
|
*/
|
|
|
|
static int adv7511_get_modes(struct adv7511 *adv7511,
|
|
struct drm_connector *connector)
|
|
{
|
|
struct edid *edid;
|
|
unsigned int count;
|
|
|
|
/* Reading the EDID only works if the device is powered */
|
|
if (!adv7511->powered) {
|
|
unsigned int edid_i2c_addr =
|
|
(adv7511->i2c_main->addr << 1) + 4;
|
|
|
|
__adv7511_power_on(adv7511);
|
|
|
|
/* Reset the EDID_I2C_ADDR register as it might be cleared */
|
|
regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR,
|
|
edid_i2c_addr);
|
|
}
|
|
|
|
edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511);
|
|
|
|
if (!adv7511->powered)
|
|
__adv7511_power_off(adv7511);
|
|
|
|
|
|
drm_mode_connector_update_edid_property(connector, edid);
|
|
count = drm_add_edid_modes(connector, edid);
|
|
|
|
adv7511_set_config_csc(adv7511, connector, adv7511->rgb,
|
|
drm_detect_hdmi_monitor(edid));
|
|
|
|
cec_s_phys_addr_from_edid(adv7511->cec_adap, edid);
|
|
|
|
kfree(edid);
|
|
|
|
return count;
|
|
}
|
|
|
|
static enum drm_connector_status
|
|
adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector)
|
|
{
|
|
enum drm_connector_status status;
|
|
unsigned int val;
|
|
bool hpd;
|
|
int ret;
|
|
|
|
ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
|
|
if (ret < 0)
|
|
return connector_status_disconnected;
|
|
|
|
if (val & ADV7511_STATUS_HPD)
|
|
status = connector_status_connected;
|
|
else
|
|
status = connector_status_disconnected;
|
|
|
|
hpd = adv7511_hpd(adv7511);
|
|
|
|
/* The chip resets itself when the cable is disconnected, so in case
|
|
* there is a pending HPD interrupt and the cable is connected there was
|
|
* at least one transition from disconnected to connected and the chip
|
|
* has to be reinitialized. */
|
|
if (status == connector_status_connected && hpd && adv7511->powered) {
|
|
regcache_mark_dirty(adv7511->regmap);
|
|
adv7511_power_on(adv7511);
|
|
adv7511_get_modes(adv7511, connector);
|
|
if (adv7511->status == connector_status_connected)
|
|
status = connector_status_disconnected;
|
|
} else {
|
|
/* Renable HPD sensing */
|
|
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
|
|
ADV7511_REG_POWER2_HPD_SRC_MASK,
|
|
ADV7511_REG_POWER2_HPD_SRC_BOTH);
|
|
}
|
|
|
|
adv7511->status = status;
|
|
return status;
|
|
}
|
|
|
|
static int adv7511_mode_valid(struct adv7511 *adv7511,
|
|
struct drm_display_mode *mode)
|
|
{
|
|
if (mode->clock > 165000)
|
|
return MODE_CLOCK_HIGH;
|
|
|
|
return MODE_OK;
|
|
}
|
|
|
|
static void adv7511_mode_set(struct adv7511 *adv7511,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adj_mode)
|
|
{
|
|
unsigned int low_refresh_rate;
|
|
unsigned int hsync_polarity = 0;
|
|
unsigned int vsync_polarity = 0;
|
|
|
|
if (adv7511->embedded_sync) {
|
|
unsigned int hsync_offset, hsync_len;
|
|
unsigned int vsync_offset, vsync_len;
|
|
|
|
hsync_offset = adj_mode->crtc_hsync_start -
|
|
adj_mode->crtc_hdisplay;
|
|
vsync_offset = adj_mode->crtc_vsync_start -
|
|
adj_mode->crtc_vdisplay;
|
|
hsync_len = adj_mode->crtc_hsync_end -
|
|
adj_mode->crtc_hsync_start;
|
|
vsync_len = adj_mode->crtc_vsync_end -
|
|
adj_mode->crtc_vsync_start;
|
|
|
|
/* The hardware vsync generator has a off-by-one bug */
|
|
vsync_offset += 1;
|
|
|
|
regmap_write(adv7511->regmap, ADV7511_REG_HSYNC_PLACEMENT_MSB,
|
|
((hsync_offset >> 10) & 0x7) << 5);
|
|
regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(0),
|
|
(hsync_offset >> 2) & 0xff);
|
|
regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(1),
|
|
((hsync_offset & 0x3) << 6) |
|
|
((hsync_len >> 4) & 0x3f));
|
|
regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(2),
|
|
((hsync_len & 0xf) << 4) |
|
|
((vsync_offset >> 6) & 0xf));
|
|
regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(3),
|
|
((vsync_offset & 0x3f) << 2) |
|
|
((vsync_len >> 8) & 0x3));
|
|
regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(4),
|
|
vsync_len & 0xff);
|
|
|
|
hsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PHSYNC);
|
|
vsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PVSYNC);
|
|
} else {
|
|
enum adv7511_sync_polarity mode_hsync_polarity;
|
|
enum adv7511_sync_polarity mode_vsync_polarity;
|
|
|
|
/**
|
|
* If the input signal is always low or always high we want to
|
|
* invert or let it passthrough depending on the polarity of the
|
|
* current mode.
|
|
**/
|
|
if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
|
|
mode_hsync_polarity = ADV7511_SYNC_POLARITY_LOW;
|
|
else
|
|
mode_hsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
|
|
|
|
if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
|
|
mode_vsync_polarity = ADV7511_SYNC_POLARITY_LOW;
|
|
else
|
|
mode_vsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
|
|
|
|
if (adv7511->hsync_polarity != mode_hsync_polarity &&
|
|
adv7511->hsync_polarity !=
|
|
ADV7511_SYNC_POLARITY_PASSTHROUGH)
|
|
hsync_polarity = 1;
|
|
|
|
if (adv7511->vsync_polarity != mode_vsync_polarity &&
|
|
adv7511->vsync_polarity !=
|
|
ADV7511_SYNC_POLARITY_PASSTHROUGH)
|
|
vsync_polarity = 1;
|
|
}
|
|
|
|
if (mode->vrefresh <= 24000)
|
|
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ;
|
|
else if (mode->vrefresh <= 25000)
|
|
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ;
|
|
else if (mode->vrefresh <= 30000)
|
|
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ;
|
|
else
|
|
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
|
|
|
|
regmap_update_bits(adv7511->regmap, 0xfb,
|
|
0x6, low_refresh_rate << 1);
|
|
regmap_update_bits(adv7511->regmap, 0x17,
|
|
0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
|
|
|
|
if (adv7511->type == ADV7533)
|
|
adv7533_mode_set(adv7511, adj_mode);
|
|
|
|
drm_mode_copy(&adv7511->curr_mode, adj_mode);
|
|
|
|
/*
|
|
* TODO Test first order 4:2:2 to 4:4:4 up conversion method, which is
|
|
* supposed to give better results.
|
|
*/
|
|
|
|
adv7511->f_tmds = mode->clock;
|
|
}
|
|
|
|
/* Connector funcs */
|
|
static struct adv7511 *connector_to_adv7511(struct drm_connector *connector)
|
|
{
|
|
return container_of(connector, struct adv7511, connector);
|
|
}
|
|
|
|
static int adv7511_connector_get_modes(struct drm_connector *connector)
|
|
{
|
|
struct adv7511 *adv = connector_to_adv7511(connector);
|
|
|
|
return adv7511_get_modes(adv, connector);
|
|
}
|
|
|
|
static enum drm_mode_status
|
|
adv7511_connector_mode_valid(struct drm_connector *connector,
|
|
struct drm_display_mode *mode)
|
|
{
|
|
struct adv7511 *adv = connector_to_adv7511(connector);
|
|
|
|
return adv7511_mode_valid(adv, mode);
|
|
}
|
|
|
|
static struct drm_connector_helper_funcs adv7511_connector_helper_funcs = {
|
|
.get_modes = adv7511_connector_get_modes,
|
|
.mode_valid = adv7511_connector_mode_valid,
|
|
};
|
|
|
|
static enum drm_connector_status
|
|
adv7511_connector_detect(struct drm_connector *connector, bool force)
|
|
{
|
|
struct adv7511 *adv = connector_to_adv7511(connector);
|
|
|
|
return adv7511_detect(adv, connector);
|
|
}
|
|
|
|
static const struct drm_connector_funcs adv7511_connector_funcs = {
|
|
.fill_modes = drm_helper_probe_single_connector_modes,
|
|
.detect = adv7511_connector_detect,
|
|
.destroy = drm_connector_cleanup,
|
|
.reset = drm_atomic_helper_connector_reset,
|
|
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
|
|
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
|
|
};
|
|
|
|
/* Bridge funcs */
|
|
static struct adv7511 *bridge_to_adv7511(struct drm_bridge *bridge)
|
|
{
|
|
return container_of(bridge, struct adv7511, bridge);
|
|
}
|
|
|
|
static void adv7511_bridge_enable(struct drm_bridge *bridge)
|
|
{
|
|
struct adv7511 *adv = bridge_to_adv7511(bridge);
|
|
|
|
adv7511_power_on(adv);
|
|
}
|
|
|
|
static void adv7511_bridge_disable(struct drm_bridge *bridge)
|
|
{
|
|
struct adv7511 *adv = bridge_to_adv7511(bridge);
|
|
|
|
adv7511_power_off(adv);
|
|
}
|
|
|
|
static void adv7511_bridge_mode_set(struct drm_bridge *bridge,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adj_mode)
|
|
{
|
|
struct adv7511 *adv = bridge_to_adv7511(bridge);
|
|
|
|
adv7511_mode_set(adv, mode, adj_mode);
|
|
}
|
|
|
|
static int adv7511_bridge_attach(struct drm_bridge *bridge)
|
|
{
|
|
struct adv7511 *adv = bridge_to_adv7511(bridge);
|
|
int ret;
|
|
|
|
if (!bridge->encoder) {
|
|
DRM_ERROR("Parent encoder object not found");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (adv->i2c_main->irq)
|
|
adv->connector.polled = DRM_CONNECTOR_POLL_HPD;
|
|
else
|
|
adv->connector.polled = DRM_CONNECTOR_POLL_CONNECT |
|
|
DRM_CONNECTOR_POLL_DISCONNECT;
|
|
|
|
ret = drm_connector_init(bridge->dev, &adv->connector,
|
|
&adv7511_connector_funcs,
|
|
DRM_MODE_CONNECTOR_HDMIA);
|
|
if (ret) {
|
|
DRM_ERROR("Failed to initialize connector with drm\n");
|
|
return ret;
|
|
}
|
|
drm_connector_helper_add(&adv->connector,
|
|
&adv7511_connector_helper_funcs);
|
|
drm_mode_connector_attach_encoder(&adv->connector, bridge->encoder);
|
|
|
|
if (adv->type == ADV7533)
|
|
ret = adv7533_attach_dsi(adv);
|
|
|
|
if (adv->i2c_main->irq)
|
|
regmap_write(adv->regmap, ADV7511_REG_INT_ENABLE(0),
|
|
ADV7511_INT0_HPD);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct drm_bridge_funcs adv7511_bridge_funcs = {
|
|
.enable = adv7511_bridge_enable,
|
|
.disable = adv7511_bridge_disable,
|
|
.mode_set = adv7511_bridge_mode_set,
|
|
.attach = adv7511_bridge_attach,
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Probe & remove
|
|
*/
|
|
|
|
static const char * const adv7511_supply_names[] = {
|
|
"avdd",
|
|
"dvdd",
|
|
"pvdd",
|
|
"bgvdd",
|
|
"dvdd-3v",
|
|
};
|
|
|
|
static const char * const adv7533_supply_names[] = {
|
|
"avdd",
|
|
"dvdd",
|
|
"pvdd",
|
|
"a2vdd",
|
|
"v3p3",
|
|
"v1p2",
|
|
};
|
|
|
|
static int adv7511_init_regulators(struct adv7511 *adv)
|
|
{
|
|
struct device *dev = &adv->i2c_main->dev;
|
|
const char * const *supply_names;
|
|
unsigned int i;
|
|
int ret;
|
|
|
|
if (adv->type == ADV7511) {
|
|
supply_names = adv7511_supply_names;
|
|
adv->num_supplies = ARRAY_SIZE(adv7511_supply_names);
|
|
} else {
|
|
supply_names = adv7533_supply_names;
|
|
adv->num_supplies = ARRAY_SIZE(adv7533_supply_names);
|
|
}
|
|
|
|
adv->supplies = devm_kcalloc(dev, adv->num_supplies,
|
|
sizeof(*adv->supplies), GFP_KERNEL);
|
|
if (!adv->supplies)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < adv->num_supplies; i++)
|
|
adv->supplies[i].supply = supply_names[i];
|
|
|
|
ret = devm_regulator_bulk_get(dev, adv->num_supplies, adv->supplies);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return regulator_bulk_enable(adv->num_supplies, adv->supplies);
|
|
}
|
|
|
|
static void adv7511_uninit_regulators(struct adv7511 *adv)
|
|
{
|
|
regulator_bulk_disable(adv->num_supplies, adv->supplies);
|
|
}
|
|
|
|
static bool adv7511_cec_register_volatile(struct device *dev, unsigned int reg)
|
|
{
|
|
struct i2c_client *i2c = to_i2c_client(dev);
|
|
struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
|
|
|
|
if (adv7511->type == ADV7533)
|
|
reg -= ADV7533_REG_CEC_OFFSET;
|
|
|
|
switch (reg) {
|
|
case ADV7511_REG_CEC_RX_FRAME_HDR:
|
|
case ADV7511_REG_CEC_RX_FRAME_DATA0...
|
|
ADV7511_REG_CEC_RX_FRAME_DATA0 + 14:
|
|
case ADV7511_REG_CEC_RX_FRAME_LEN:
|
|
case ADV7511_REG_CEC_RX_BUFFERS:
|
|
case ADV7511_REG_CEC_TX_LOW_DRV_CNT:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static const struct regmap_config adv7511_cec_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
|
|
.max_register = 0xff,
|
|
.cache_type = REGCACHE_RBTREE,
|
|
.volatile_reg = adv7511_cec_register_volatile,
|
|
};
|
|
|
|
static int adv7511_init_cec_regmap(struct adv7511 *adv)
|
|
{
|
|
int ret;
|
|
|
|
adv->i2c_cec = i2c_new_dummy(adv->i2c_main->adapter,
|
|
adv->i2c_main->addr - 1);
|
|
if (!adv->i2c_cec)
|
|
return -ENOMEM;
|
|
i2c_set_clientdata(adv->i2c_cec, adv);
|
|
|
|
adv->regmap_cec = devm_regmap_init_i2c(adv->i2c_cec,
|
|
&adv7511_cec_regmap_config);
|
|
if (IS_ERR(adv->regmap_cec)) {
|
|
ret = PTR_ERR(adv->regmap_cec);
|
|
goto err;
|
|
}
|
|
|
|
if (adv->type == ADV7533) {
|
|
ret = adv7533_patch_cec_registers(adv);
|
|
if (ret)
|
|
goto err;
|
|
}
|
|
|
|
return 0;
|
|
err:
|
|
i2c_unregister_device(adv->i2c_cec);
|
|
return ret;
|
|
}
|
|
|
|
static int adv7511_parse_dt(struct device_node *np,
|
|
struct adv7511_link_config *config)
|
|
{
|
|
const char *str;
|
|
int ret;
|
|
|
|
of_property_read_u32(np, "adi,input-depth", &config->input_color_depth);
|
|
if (config->input_color_depth != 8 && config->input_color_depth != 10 &&
|
|
config->input_color_depth != 12)
|
|
return -EINVAL;
|
|
|
|
ret = of_property_read_string(np, "adi,input-colorspace", &str);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (!strcmp(str, "rgb"))
|
|
config->input_colorspace = HDMI_COLORSPACE_RGB;
|
|
else if (!strcmp(str, "yuv422"))
|
|
config->input_colorspace = HDMI_COLORSPACE_YUV422;
|
|
else if (!strcmp(str, "yuv444"))
|
|
config->input_colorspace = HDMI_COLORSPACE_YUV444;
|
|
else
|
|
return -EINVAL;
|
|
|
|
ret = of_property_read_string(np, "adi,input-clock", &str);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (!strcmp(str, "1x"))
|
|
config->input_clock = ADV7511_INPUT_CLOCK_1X;
|
|
else if (!strcmp(str, "2x"))
|
|
config->input_clock = ADV7511_INPUT_CLOCK_2X;
|
|
else if (!strcmp(str, "ddr"))
|
|
config->input_clock = ADV7511_INPUT_CLOCK_DDR;
|
|
else
|
|
return -EINVAL;
|
|
|
|
if (config->input_colorspace == HDMI_COLORSPACE_YUV422 ||
|
|
config->input_clock != ADV7511_INPUT_CLOCK_1X) {
|
|
ret = of_property_read_u32(np, "adi,input-style",
|
|
&config->input_style);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (config->input_style < 1 || config->input_style > 3)
|
|
return -EINVAL;
|
|
|
|
ret = of_property_read_string(np, "adi,input-justification",
|
|
&str);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (!strcmp(str, "left"))
|
|
config->input_justification =
|
|
ADV7511_INPUT_JUSTIFICATION_LEFT;
|
|
else if (!strcmp(str, "evenly"))
|
|
config->input_justification =
|
|
ADV7511_INPUT_JUSTIFICATION_EVENLY;
|
|
else if (!strcmp(str, "right"))
|
|
config->input_justification =
|
|
ADV7511_INPUT_JUSTIFICATION_RIGHT;
|
|
else
|
|
return -EINVAL;
|
|
|
|
} else {
|
|
config->input_style = 1;
|
|
config->input_justification = ADV7511_INPUT_JUSTIFICATION_LEFT;
|
|
}
|
|
|
|
of_property_read_u32(np, "adi,clock-delay", &config->clock_delay);
|
|
if (config->clock_delay < -1200 || config->clock_delay > 1600)
|
|
return -EINVAL;
|
|
|
|
config->embedded_sync = of_property_read_bool(np, "adi,embedded-sync");
|
|
|
|
/* Hardcode the sync pulse configurations for now. */
|
|
config->sync_pulse = ADV7511_INPUT_SYNC_PULSE_NONE;
|
|
config->vsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
|
|
config->hsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
|
|
{
|
|
struct adv7511_link_config link_config;
|
|
struct adv7511 *adv7511;
|
|
struct device *dev = &i2c->dev;
|
|
unsigned int main_i2c_addr = i2c->addr << 1;
|
|
unsigned int edid_i2c_addr = main_i2c_addr + 4;
|
|
unsigned int val;
|
|
int ret;
|
|
|
|
if (!dev->of_node)
|
|
return -EINVAL;
|
|
|
|
adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL);
|
|
if (!adv7511)
|
|
return -ENOMEM;
|
|
|
|
adv7511->i2c_main = i2c;
|
|
adv7511->powered = false;
|
|
adv7511->status = connector_status_disconnected;
|
|
|
|
if (dev->of_node)
|
|
adv7511->type = (enum adv7511_type)of_device_get_match_data(dev);
|
|
else
|
|
adv7511->type = id->driver_data;
|
|
|
|
memset(&link_config, 0, sizeof(link_config));
|
|
|
|
if (adv7511->type == ADV7511)
|
|
ret = adv7511_parse_dt(dev->of_node, &link_config);
|
|
else
|
|
ret = adv7533_parse_dt(dev->of_node, adv7511);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = adv7511_init_regulators(adv7511);
|
|
if (ret) {
|
|
dev_err(dev, "failed to init regulators\n");
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* The power down GPIO is optional. If present, toggle it from active to
|
|
* inactive to wake up the encoder.
|
|
*/
|
|
adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH);
|
|
if (IS_ERR(adv7511->gpio_pd)) {
|
|
ret = PTR_ERR(adv7511->gpio_pd);
|
|
goto uninit_regulators;
|
|
}
|
|
|
|
if (adv7511->gpio_pd) {
|
|
mdelay(5);
|
|
gpiod_set_value_cansleep(adv7511->gpio_pd, 0);
|
|
}
|
|
|
|
adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config);
|
|
if (IS_ERR(adv7511->regmap)) {
|
|
ret = PTR_ERR(adv7511->regmap);
|
|
goto uninit_regulators;
|
|
}
|
|
|
|
ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val);
|
|
if (ret)
|
|
goto uninit_regulators;
|
|
dev_dbg(dev, "Rev. %d\n", val);
|
|
|
|
if (adv7511->type == ADV7511)
|
|
ret = regmap_register_patch(adv7511->regmap,
|
|
adv7511_fixed_registers,
|
|
ARRAY_SIZE(adv7511_fixed_registers));
|
|
else
|
|
ret = adv7533_patch_registers(adv7511);
|
|
if (ret)
|
|
goto uninit_regulators;
|
|
|
|
regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, edid_i2c_addr);
|
|
regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR,
|
|
main_i2c_addr - 0xa);
|
|
regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR,
|
|
main_i2c_addr - 2);
|
|
|
|
adv7511_packet_disable(adv7511, 0xffff);
|
|
|
|
adv7511->i2c_edid = i2c_new_dummy(i2c->adapter, edid_i2c_addr >> 1);
|
|
if (!adv7511->i2c_edid) {
|
|
ret = -ENOMEM;
|
|
goto uninit_regulators;
|
|
}
|
|
|
|
ret = adv7511_init_cec_regmap(adv7511);
|
|
if (ret)
|
|
goto err_i2c_unregister_edid;
|
|
|
|
INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work);
|
|
|
|
if (i2c->irq) {
|
|
init_waitqueue_head(&adv7511->wq);
|
|
|
|
ret = devm_request_threaded_irq(dev, i2c->irq, NULL,
|
|
adv7511_irq_handler,
|
|
IRQF_ONESHOT, dev_name(dev),
|
|
adv7511);
|
|
if (ret)
|
|
goto err_unregister_cec;
|
|
}
|
|
|
|
adv7511_power_off(adv7511);
|
|
|
|
i2c_set_clientdata(i2c, adv7511);
|
|
|
|
if (adv7511->type == ADV7511)
|
|
adv7511_set_link_config(adv7511, &link_config);
|
|
|
|
ret = adv7511_cec_init(dev, adv7511);
|
|
if (ret)
|
|
goto err_unregister_cec;
|
|
|
|
adv7511->bridge.funcs = &adv7511_bridge_funcs;
|
|
adv7511->bridge.of_node = dev->of_node;
|
|
|
|
drm_bridge_add(&adv7511->bridge);
|
|
|
|
adv7511_audio_init(dev, adv7511);
|
|
return 0;
|
|
|
|
err_unregister_cec:
|
|
i2c_unregister_device(adv7511->i2c_cec);
|
|
if (adv7511->cec_clk)
|
|
clk_disable_unprepare(adv7511->cec_clk);
|
|
err_i2c_unregister_edid:
|
|
i2c_unregister_device(adv7511->i2c_edid);
|
|
uninit_regulators:
|
|
adv7511_uninit_regulators(adv7511);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int adv7511_remove(struct i2c_client *i2c)
|
|
{
|
|
struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
|
|
|
|
if (adv7511->type == ADV7533)
|
|
adv7533_detach_dsi(adv7511);
|
|
i2c_unregister_device(adv7511->i2c_cec);
|
|
if (adv7511->cec_clk)
|
|
clk_disable_unprepare(adv7511->cec_clk);
|
|
|
|
adv7511_uninit_regulators(adv7511);
|
|
|
|
drm_bridge_remove(&adv7511->bridge);
|
|
|
|
adv7511_audio_exit(adv7511);
|
|
|
|
cec_unregister_adapter(adv7511->cec_adap);
|
|
|
|
i2c_unregister_device(adv7511->i2c_edid);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id adv7511_i2c_ids[] = {
|
|
{ "adv7511", ADV7511 },
|
|
{ "adv7511w", ADV7511 },
|
|
{ "adv7513", ADV7511 },
|
|
#ifdef CONFIG_DRM_I2C_ADV7533
|
|
{ "adv7533", ADV7533 },
|
|
#endif
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids);
|
|
|
|
static const struct of_device_id adv7511_of_ids[] = {
|
|
{ .compatible = "adi,adv7511", .data = (void *)ADV7511 },
|
|
{ .compatible = "adi,adv7511w", .data = (void *)ADV7511 },
|
|
{ .compatible = "adi,adv7513", .data = (void *)ADV7511 },
|
|
#ifdef CONFIG_DRM_I2C_ADV7533
|
|
{ .compatible = "adi,adv7533", .data = (void *)ADV7533 },
|
|
#endif
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, adv7511_of_ids);
|
|
|
|
static struct mipi_dsi_driver adv7533_dsi_driver = {
|
|
.driver.name = "adv7533",
|
|
};
|
|
|
|
static struct i2c_driver adv7511_driver = {
|
|
.driver = {
|
|
.name = "adv7511",
|
|
.of_match_table = adv7511_of_ids,
|
|
},
|
|
.id_table = adv7511_i2c_ids,
|
|
.probe = adv7511_probe,
|
|
.remove = adv7511_remove,
|
|
};
|
|
|
|
static int __init adv7511_init(void)
|
|
{
|
|
if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
|
|
mipi_dsi_driver_register(&adv7533_dsi_driver);
|
|
|
|
return i2c_add_driver(&adv7511_driver);
|
|
}
|
|
module_init(adv7511_init);
|
|
|
|
static void __exit adv7511_exit(void)
|
|
{
|
|
i2c_del_driver(&adv7511_driver);
|
|
|
|
if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
|
|
mipi_dsi_driver_unregister(&adv7533_dsi_driver);
|
|
}
|
|
module_exit(adv7511_exit);
|
|
|
|
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
|
|
MODULE_DESCRIPTION("ADV7511 HDMI transmitter driver");
|
|
MODULE_LICENSE("GPL");
|