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linux/drivers/gpu/drm/amd/display/amdgpu_dm
Guttula, Suresh 0cafc82fae drm/amd/display: set backlight level limit to 1
This patch will work as workaround for silicon limitation
related to PWM dutycycle when the backlight level goes to 0.

Actually PWM value is 16 bit value and valid range from 1-65535.
when ever user requested to set this PWM value to 0 which is not
fall in the range, in VBIOS taken care this by limiting to 1.
This patch here will do the same. Either driver or VBIOS can not
pass 0 value as it is not a valid range for PWM and it will
give a high PWM pulse which is not the intended behaviour as
per HW constraints.

Signed-off-by: suresh guttula <suresh.guttula@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-10-30 16:53:02 -05:00
..
amdgpu_dm.c drm/amd/display: set backlight level limit to 1 2018-10-30 16:53:02 -05:00
amdgpu_dm.h drm/amd/display: Remove mst_hotplug_work 2018-09-26 21:09:07 -05:00
amdgpu_dm_color.c drm/amd/display: Use DGAM ROM or RAM 2018-08-27 11:09:58 -05:00
amdgpu_dm_crc.c Merge drm/drm-next into drm-misc-next 2018-08-27 10:00:03 -04:00
amdgpu_dm_debugfs.c drm/amdgpu/display: dm/amdgpu: make dp phy debugfs for eDP 2018-10-12 12:53:04 -05:00
amdgpu_dm_debugfs.h drm/amd/display: Add support for hw_state logging via debugfs 2018-08-27 15:20:17 -05:00
amdgpu_dm_helpers.c drm/amd/display: Support reading hw state from debugfs file 2018-08-27 15:20:49 -05:00
amdgpu_dm_irq.c drm/amd/display: Flatten irq handler data struct 2018-10-09 17:03:38 -05:00
amdgpu_dm_irq.h drm/amd/display: make amdgpu_dm_irq_handler static 2017-10-17 10:43:04 +10:00
amdgpu_dm_mst_types.c Merge branch 'drm-next-4.20' of git://people.freedesktop.org/~agd5f/linux into drm-next 2018-09-21 09:52:53 +10:00
amdgpu_dm_mst_types.h drm/amd/display: Fix rehook MST display not light back on 2017-12-20 14:46:38 -05:00
amdgpu_dm_pp_smu.c drm/amd/display: Fix Null point error if smu ip was disabled 2018-10-24 20:03:43 -05:00
amdgpu_dm_services.c BackMerge v4.18-rc7 into drm-next 2018-07-30 10:39:22 +10:00
Makefile drm/amd/display: Moving powerplay functions to a separate class 2018-07-05 16:38:41 -05:00