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drm/amdgpu/soc15: fix xclk for raven

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commit c657b936ea upstream.

It's 25 Mhz (refclk / 4).  This fixes the interpretation
of the rlc clock counter.

Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alex Deucher 2020-02-12 01:46:16 -05:00 committed by Greg Kroah-Hartman
parent 837ba4829b
commit 8300ed5a21
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/amd/amdgpu/soc15.c
View file

@ -205,7 +205,12 @@ static u32 soc15_get_config_memsize(struct amdgpu_device *adev)
static u32 soc15_get_xclk(struct amdgpu_device *adev)
{
return adev->clock.spll.reference_freq;
u32 reference_clock = adev->clock.spll.reference_freq;
if (adev->asic_type == CHIP_RAVEN)
return reference_clock / 4;
return reference_clock;
}