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drm/radeon: Add HAINAN clock adjustment

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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>
This commit is contained in:
decce6 2026-02-10 07:26:00 +00:00 committed by Alex Deucher
parent f38bb9b092
commit 908d318f23
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/radeon/si_dpm.c
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@ -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) ||