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authordecce6 <decce6@proton.me>2026-02-10 10:26:00 +0300
committerSasha Levin <sashal@kernel.org>2026-03-04 15:20:48 +0300
commitc98d2d4a2386cdce2a3d219ffb42475051f7d367 (patch)
treea5cb67e249bf6d9e56a13a96dfca6450a85bd5cc /drivers/gpu
parent41ccfac7d302968a4f32b5f7b012d066c5f5cdf8 (diff)
downloadlinux-c98d2d4a2386cdce2a3d219ffb42475051f7d367.tar.xz
drm/radeon: Add HAINAN clock adjustment
[ Upstream commit 908d318f23d6b5d625bea093c5fc056238cdb7ff ] This patch limits the clock speeds of the AMD Radeon R5 M420 GPU from 850/1000MHz (core/memory) to 800/950 MHz, making it work stably. This patch is for radeon. Signed-off-by: decce6 <decce6@proton.me> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/radeon/si_dpm.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index 9deb91970d4d..f12227145ef0 100644
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -2925,6 +2925,11 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev,
max_sclk = 60000;
max_mclk = 80000;
}
+ if ((rdev->pdev->device == 0x666f) &&
+ (rdev->pdev->revision == 0x00)) {
+ max_sclk = 80000;
+ max_mclk = 95000;
+ }
} else if (rdev->family == CHIP_OLAND) {
if ((rdev->pdev->revision == 0xC7) ||
(rdev->pdev->revision == 0x80) ||