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authorAlex Deucher <alexander.deucher@amd.com>2017-06-15 11:12:28 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-29 12:48:52 +0200
commit525e496a9722a6189f7ece9236a76f00cb8abef0 (patch)
tree02f21d4240c708a1b0d8ea3ccdb7bcb4fe269386
parent526527847355f703a519c62edf505f158592723c (diff)
downloadlinux-linaro-stable-525e496a9722a6189f7ece9236a76f00cb8abef0.tar.gz
drm/amdgpu: adjust default display clock
commit 52b482b0f4fd6d5267faf29fe91398e203f3c230 upstream. 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 Acked-by: Chunming Zhou <david1.zhou@amd.com> Acked-by: Christian K├Ânig <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
index 51a9942cdb40..f4cae5357e40 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
@@ -681,6 +681,10 @@ 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);