Re: [PATCH v2] drm/amdgpu: Add DC feature mask to disable fractional pwm

2019-10-23 Thread Li, Sun peng (Leo)
On 2019-10-23 10:19 a.m., Lukáš Krejčí wrote: > On Mon, 2019-10-21 at 15:44 -0400, sunpeng...@amd.com wrote: >> From: Leo Li >> >> [Why] >> >> Some LED panel drivers might not like fractional PWM. In such cases, >> backlight flickering may be observed. >> >> [How] >> >> Add a DC feature mask to

Re: [PATCH v2] drm/amdgpu: Add DC feature mask to disable fractional pwm

2019-10-23 Thread Lukáš Krejčí
On Mon, 2019-10-21 at 15:44 -0400, sunpeng...@amd.com wrote: > From: Leo Li > > [Why] > > Some LED panel drivers might not like fractional PWM. In such cases, > backlight flickering may be observed. > > [How] > > Add a DC feature mask to disable fractional PWM, and associate it with > the

[PATCH v2] drm/amdgpu: Add DC feature mask to disable fractional pwm

2019-10-21 Thread sunpeng.li
From: Leo Li [Why] Some LED panel drivers might not like fractional PWM. In such cases, backlight flickering may be observed. [How] Add a DC feature mask to disable fractional PWM, and associate it with the preexisting dc_config flag. The flag is only plumbed through the dmcu firmware, so