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Commit fc79252e authored by GG Hou's avatar GG Hou
Browse files

drm/bridge: LT9611UXC: Change LT9611UXC fw version auto-upgrade rule 



Change LT9611UXC fw version auto-upgrade rule.
If fw version is 0, means no fw in this chip, need to flash a fw.
Or that do not need to auto-upgrade.

Change-Id: I116495061c5a2d8e1e498f37ab58b5e355219ef8
Signed-off-by: default avatarGG Hou <renjhou@codeaurora.org>
parent ad6d422c

drivers/gpu/drm/bridge/lt9611uxc.c

+8 −9
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2020, The Linux Foundation. All rights reserved.

 */



#define pr_fmt(fmt) "%s: " fmt, __func__
@@ -40,7 +40,6 @@ 
#define READ_BUF_MAX_SIZE 64

#define WRITE_BUF_MAX_SIZE 64

#define HPD_UEVENT_BUFFER_SIZE 30

#define VERSION_NUM	0x32



struct lt9611_reg_cfg {

	u8 reg;
@@ -1657,7 +1656,13 @@ static int lt9611_probe(struct i2c_client *client, 
	i2c_set_clientdata(client, pdata);

	dev_set_drvdata(&client->dev, pdata);



	if (lt9611_get_version(pdata) == VERSION_NUM) {

	ret = lt9611_sysfs_init(&client->dev);

	if (ret) {

		pr_err("sysfs init failed\n");

		goto err_sysfs_init;

	}



	if (lt9611_get_version(pdata)) {

		pr_info("LT9611 works, no need to upgrade FW\n");

	} else {

		ret = request_firmware_nowait(THIS_MODULE, true,
@@ -1671,12 +1676,6 @@ static int lt9611_probe(struct i2c_client *client, 
			return 0;

	}



	ret = lt9611_sysfs_init(&client->dev);

	if (ret) {

		pr_err("sysfs init failed\n");

		goto err_sysfs_init;

	}



#if IS_ENABLED(CONFIG_OF)

	pdata->bridge.of_node = client->dev.of_node;

#endif