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Commit e05d425f authored by Sandeep Panda's avatar Sandeep Panda
Browse files

drm/msm/dsi-staging: defer dsi probe if backlight device not found 



For display panels which need backlight update through wled, defer
dsi probe until backlight device list is populated by wled driver.

Change-Id: Ida02bbb1b87c5171ee4f3de49ec496e7dc63308f
Signed-off-by: default avatarSandeep Panda <spanda@codeaurora.org>
parent 65205701

drivers/gpu/drm/msm/dsi-staging/dsi_panel.c

+4 −5
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2019, 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
@@ -593,17 +593,16 @@ static int dsi_panel_pinctrl_init(struct dsi_panel *panel) 
static int dsi_panel_wled_register(struct dsi_panel *panel,

		struct dsi_backlight_config *bl)

{

	int rc = 0;

	struct backlight_device *bd;



	bd = backlight_device_get_by_type(BACKLIGHT_RAW);

	if (!bd) {

		pr_err("[%s] fail raw backlight register\n", panel->name);

		rc = -EINVAL;

		pr_debug("[%s] backlight device list empty\n", panel->name);

		return -EPROBE_DEFER;

	}



	bl->raw_bd = bd;

	return rc;

	return 0;

}



static int dsi_panel_update_backlight(struct dsi_panel *panel,