Commit 8300ed5a authored Feb 12, 2020 by Alex Deucher Committed by Greg Kroah-Hartman Feb 28, 2020

drm/amdgpu/soc15: fix xclk for raven



commit c657b936ea98630ef5ba4f130ab1ad5c534d0165 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>

parent 837ba482

drivers/gpu/drm/amd/amdgpu/soc15.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -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;
		}