[PATCH 4.9 76/88] drm/amdgpu: reinstate oland workaround for sclk
From: Greg Kroah-Hartman
Date: Tue Mar 28 2017 - 08:59:49 EST
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit e11ddff68a7c455e63c4b46154a3e75c699a7b55 upstream.
Higher sclks seem to be unstable on some boards.
bug: https://bugs.freedesktop.org/show_bug.cgi?id=100222
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/si_dpm.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/si_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
@@ -3507,9 +3507,13 @@ static void si_apply_state_adjust_rules(
max_mclk = 80000;
}
} else if (adev->asic_type == CHIP_OLAND) {
- if ((adev->pdev->device == 0x6604) &&
- (adev->pdev->subsystem_vendor == 0x1028) &&
- (adev->pdev->subsystem_device == 0x066F)) {
+ if ((adev->pdev->revision == 0xC7) ||
+ (adev->pdev->revision == 0x80) ||
+ (adev->pdev->revision == 0x81) ||
+ (adev->pdev->revision == 0x83) ||
+ (adev->pdev->revision == 0x87) ||
+ (adev->pdev->device == 0x6604) ||
+ (adev->pdev->device == 0x6605)) {
max_sclk = 75000;
}
}