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disp: msm: limit display brightness max cooling device level

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Based on panel hardware support, display brightness levels can
be very high value. This high value display brightness cooling
device levels can cause exceeding PAGE_SIZE for cooling device stat
buffer. It leads to buffer failure for cooling device stat feature.

Limit display panel mitigation level max to 255. If hardware
supports more than 255, then scale brightness levels fit
into above limit.

Change-Id: Ieeee4ff2aa5cd884819b30b4fd9839e48ac4d804
Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>
This commit is contained in:
Manaf Meethalavalappu Pallikunhi
2021-10-18 01:04:21 +05:30
committed by Gerrit - the friendly Code Review server
parent 61963b0791
commit 479a5292e6
2 changed files with 18 additions and 6 deletions
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3
msm/msm_cooling_device.h
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@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2020-2021 The Linux Foundation. All rights reserved.
*/
#ifndef __SDE_THERMAL_CORE_H__
@@ -16,6 +16,7 @@ struct sde_cdev {
struct thermal_cooling_device *cdev;
struct backlight_device *bd;
unsigned long thermal_state;
unsigned int cdev_sf;
};
#ifdef CONFIG_THERMAL_OF