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Revert "disp: msm: limit display brightness max cooling device level"

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This reverts commit 7d3114211e.

Reason for revert: Causing display to turn off automatically on moderate and high temperature

Change-Id: I501ae17414f6b4e0c34b7dec2921a90603cbb44a
Signed-off-by: dodyirawan85 <dev.irawans@gmail.com>
This commit is contained in:
dodyirawan85 2025-09-21 18:56:53 +07:00 • committed by Michael Bestas
commit 0a1b855c61
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2 changed files with 6 additions and 18 deletions
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21
techpack/display/msm/msm_cooling_device.c
View file

@ -1,19 +1,17 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
*/
#include <linux/err.h>
#include <linux/slab.h>
#include "msm_cooling_device.h"
#define BRIGHTNESS_CDEV_MAX 255
static int sde_cdev_get_max_brightness(struct thermal_cooling_device *cdev,
unsigned long *state)
{
struct sde_cdev *disp_cdev = (struct sde_cdev *)cdev->devdata;
*state = disp_cdev->bd->props.max_brightness / disp_cdev->cdev_sf;
*state = disp_cdev->bd->props.max_brightness;
return 0;
}
@ -23,8 +21,7 @@ static int sde_cdev_get_cur_brightness(struct thermal_cooling_device *cdev,
{
struct sde_cdev *disp_cdev = (struct sde_cdev *)cdev->devdata;
*state = ((disp_cdev->bd->props.max_brightness -
disp_cdev->thermal_state) / disp_cdev->cdev_sf);
*state = disp_cdev->bd->props.max_brightness - disp_cdev->thermal_state;
return 0;
}
@ -35,11 +32,10 @@ static int sde_cdev_set_cur_brightness(struct thermal_cooling_device *cdev,
struct sde_cdev *disp_cdev = (struct sde_cdev *)cdev->devdata;
unsigned long brightness_lvl = 0;
if (state > disp_cdev->bd->props.max_brightness / disp_cdev->cdev_sf)
if (state > disp_cdev->bd->props.max_brightness)
return -EINVAL;
brightness_lvl = disp_cdev->bd->props.max_brightness -
(state * disp_cdev->cdev_sf);
brightness_lvl = disp_cdev->bd->props.max_brightness - state;
if (brightness_lvl == disp_cdev->thermal_state)
return 0;
disp_cdev->thermal_state = brightness_lvl;
@ -71,13 +67,6 @@ struct sde_cdev *backlight_cdev_register(struct device *dev,
return ERR_PTR(-ENOMEM);
disp_cdev->thermal_state = 0;
disp_cdev->bd = bd;
if (bd->props.max_brightness > BRIGHTNESS_CDEV_MAX)
disp_cdev->cdev_sf = (bd->props.max_brightness /
BRIGHTNESS_CDEV_MAX);
else
disp_cdev->cdev_sf = 1;
disp_cdev->cdev = thermal_of_cooling_device_register(dev->of_node,
(char *)dev_name(&bd->dev), disp_cdev,
&sde_cdev_ops);

3
techpack/display/msm/msm_cooling_device.h
View file

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2020-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
*/
#ifndef __SDE_THERMAL_CORE_H__
@ -16,7 +16,6 @@ struct sde_cdev {
struct thermal_cooling_device *cdev;
struct backlight_device *bd;
unsigned long thermal_state;
unsigned int cdev_sf;
};
#ifdef CONFIG_THERMAL_OF