[PATCH 3/6] drm/amdgpu: just not load smc firmware if smu is already running

[Rex Zhu]

Change-Id: I8ce8b16e77cacc914982fa0986b055eb31d6a390
Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/ci_dpm.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
index 34e5b67..54a7019 100644
--- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
@@ -2207,6 +2207,11 @@ static int ci_upload_firmware(struct amdgpu_device *adev)
 	struct ci_power_info *pi = ci_get_pi(adev);
 	int i, ret;
 
+	if (amdgpu_ci_is_smc_running(adev)) {
+		DRM_INFO("smc is running, no need to load smc firmware\n");
+		return 0;
+	}
+
 	for (i = 0; i < adev->usec_timeout; i++) {
 		if (RREG32_SMC(ixRCU_UC_EVENTS) & RCU_UC_EVENTS__boot_seq_done_MASK)
 			break;
@@ -5275,8 +5280,6 @@ static int ci_dpm_enable(struct amdgpu_device *adev)
 	struct amdgpu_ps *boot_ps = adev->pm.dpm.boot_ps;
 	int ret;
 
-	if (amdgpu_ci_is_smc_running(adev))
-		return -EINVAL;
 	if (pi->voltage_control != CISLANDS_VOLTAGE_CONTROL_NONE) {
 		ci_enable_voltage_control(adev);
 		ret = ci_construct_voltage_tables(adev);
-- 
1.9.1