[PATCH] drm/amdgpu: adjust default display clock

[Alex Deucher]

ping.

On Thu, Jun 15, 2017 at 11:17 AM, Alex Deucher <alexdeucher at gmail.com> wrote:
> Increase the default display clock on newer asics to
> accomodate some high res modes with really high refresh
> rates.
>
> bug: https://bugs.freedesktop.org/show_bug.cgi?id=93826
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> Cc: stable at vger.kernel.org
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> index 1cf78f4..1e8e112 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> @@ -693,6 +693,10 @@ int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev)
>                         DRM_INFO("Changing default dispclk from %dMhz to 600Mhz\n",
>                                  adev->clock.default_dispclk / 100);
>                         adev->clock.default_dispclk = 60000;
> +               } else if (adev->clock.default_dispclk <= 60000) {
> +                       DRM_INFO("Changing default dispclk from %dMhz to 625Mhz\n",
> +                                adev->clock.default_dispclk / 100);
> +                       adev->clock.default_dispclk = 62500;
>                 }
>                 adev->clock.dp_extclk =
>                         le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
> --
> 2.5.5
>