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Commit 4876c3ba authored by Sachin Bhayare's avatar Sachin Bhayare Committed by Gerrit - the friendly Code Review server
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HDMI: Add 1080p support in LT8912 driver 



Add 1080p resolution support in LT8912 DSI-to-HDMI
chip.

Change-Id: Ia0344b52a5d122a455be5d87a7e283635ad7405e
Signed-off-by: default avatarSachin Bhayare <sachin.bhayare@codeaurora.org>
parent a3dbc7bd

drivers/video/lt8912.c

+67 −13
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2016, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -46,7 +46,7 @@ 
#include <linux/kthread.h>

#include <linux/regmap.h>



#define MIPI_480P

#define MIPI_1080P

#define device_name	"lt8912"



/**
@@ -292,8 +292,70 @@ static int mipi_basic_set(struct lt8912_data *data) 
	return 0;

}



#ifdef MIPI_1080P

static int mipi_dig_set_res(struct lt8912_data *data)

{

	int rc = 0;



	data->lt8912_client->addr = 0x49;

	rc = lt8912_i2c_write_byte(data, 0x18, 0x2c);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x19, 0x05);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x1c, 0x80);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x1d, 0x07);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x2f, 0x0c);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x34, 0x98);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x35, 0x08);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x36, 0x65);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x37, 0x04);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x38, 0x24);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x39, 0x00);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x3a, 0x04);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x3b, 0x00);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x3c, 0x94);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x3d, 0x00);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x3e, 0x58);

	if (rc)

		return rc;

	rc = lt8912_i2c_write_byte(data, 0x3f, 0x00);

	if (rc)

		return rc;

	return 0;

}



#endif



#ifdef MIPI_720P

static int mipi_dig_720p(struct lt8912_data *data)

static int mipi_dig_set_res(struct lt8912_data *data)

{

	int rc = 0;
@@ -358,7 +420,7 @@ static int mipi_dig_720p(struct lt8912_data *data) 
#endif



#ifdef MIPI_480P

static int mipi_dig_480p(struct lt8912_data *data)

static int mipi_dig_set_res(struct lt8912_data *data)

{

	int rc = 0;
@@ -773,17 +835,9 @@ static int lontium_i2c_probe(struct i2c_client *client, 
	if (ret)

		goto free_reset_gpio;



#ifdef MIPI_720P

	ret = mipi_dig_720p(data);

	ret = mipi_dig_set_res(data);

	if (ret)

		goto free_reset_gpio;

#endif



#ifdef MIPI_480P

	ret = mipi_dig_480p(data);

	if (ret)

		goto free_reset_gpio;

#endif



	ret = dds_config(data);

	if (ret)