From: Evan Quan <evan.quan@xxxxxxx>
PMFW may boots those ASICs with DC mode. Need to set it back
to AC mode.
Signed-off-by: Evan Quan <evan.quan@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index f6d4b0ef46ad..2cfb911ab370 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -1154,6 +1154,21 @@ static int smu_smc_table_hw_init(struct smu_context *smu,
}
}
}
+
+ if (adev->asic_type >= CHIP_NAVI10 &&
+ adev->asic_type <= CHIP_NAVI12) {
+ /*
+ * For Navi1X, manually switch it to AC mode as PMFW
+ * may boot it with DC mode.
+ * TODO: should check whether we are indeed under AC
+ * mode before doing this.
+ */
+ ret = smu_set_power_source(smu, SMU_POWER_SOURCE_AC);
+ if (ret) {
+ pr_err("Failed to switch to AC mode!\n");
+ return ret;
+ }
+ }
}
if (adev->asic_type != CHIP_ARCTURUS) {
ret = smu_notify_display_change(smu);
--
2.25.1
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