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Commit bc293e58 authored by Mathias Fröhlich's avatar Mathias Fröhlich Committed by Dave Airlie
Browse files

drm/radeon/kms/atom: get better min pixel clock info 



Where supported use ulMinPixelClockPLL_Output rather than
usMinPixelClockPLL_Output for pll_out_min.  This seems to
improve pll selection on some boards.

Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 790cfb34

drivers/gpu/drm/radeon/radeon_atombios.c

+6 −2
Original line number Original line Diff line number Diff line
@@ -641,8 +641,12 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) 
		    le16_to_cpu(firmware_info->info.usReferenceClock);

		    le16_to_cpu(firmware_info->info.usReferenceClock);

		p1pll->reference_div = 0;

		p1pll->reference_div = 0;





		if (crev < 2)

			p1pll->pll_out_min =

			p1pll->pll_out_min =

				le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output);

				le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Output);

		else

			p1pll->pll_out_min =

				le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output);

		p1pll->pll_out_max =

		p1pll->pll_out_max =

		    le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);

		    le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);