linux/drivers/video
Derek Basehore b04c22da18 backlight: pwm_bl: Fix overflow condition
[ Upstream commit 5d0c49aceb ]

This fixes an overflow condition that can happen with high max
brightness and period values in compute_duty_cycle. This fixes it by
using a 64 bit variable for computing the duty cycle.

Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-12-25 14:26:24 +01:00
..
backlight backlight: pwm_bl: Fix overflow condition 2017-12-25 14:26:24 +01:00
console License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fbdev video: fbdev: au1200fb: Return an error code if a memory allocation fails 2017-12-20 10:10:23 +01:00
logo License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
display_timing.c video: add display_timing and videomode 2013-01-24 09:03:04 +01:00
hdmi.c video: Add new aspect ratios for HDMI 2.0 2016-10-17 14:23:46 +02:00
Kconfig fbdev: sh_mipi_dsi: remove driver 2016-05-10 11:53:38 +03:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
of_display_timing.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
of_videomode.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
vgastate.c fbdev: vgastate: remove trailing whitespaces 2015-01-13 12:53:25 +02:00
videomode.c videomode: videomode_from_timing work 2013-03-21 14:34:33 +02:00