1 files changed, 73 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1350-drm-amd-powerplay-add-resume-sequence-placeholder-fo.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1350-drm-amd-powerplay-add-resume-sequence-placeholder-fo.patch
new file mode 100644
index 00000000..654afd27
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1350-drm-amd-powerplay-add-resume-sequence-placeholder-fo.patch
@@ -0,0 +1,73 @@
+From 736f0ca94f45d4c9591617da6c872b53ad467e1b Mon Sep 17 00:00:00 2001
+From: Huang Rui <ray.huang@amd.com>
+Date: Wed, 5 Dec 2018 12:01:09 +0800
+Subject: [PATCH 1350/2940] drm/amd/powerplay: add resume sequence placeholder
+ for smu ip block
+
+This patch adds resume sequence placeholder for smu ip block.
+
+Signed-off-by: Huang Rui <ray.huang@amd.com>
+Acked-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 39 +++++++++++++++++++++-
+ 1 file changed, 38 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+index e0a5597cf6c4..a6f19b525420 100644
+--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
++++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+@@ -311,13 +311,50 @@ static int smu_resume(void *handle)
+ 	if (adev->asic_type < CHIP_VEGA20)
+ 		return -EINVAL;
+ 
++	pr_info("SMU is resuming...\n");
++
++	if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
++		ret = smu_load_microcode(smu);
++		if (ret)
++			return ret;
++	}
++
++	ret = smu_check_fw_status(smu);
++	if (ret) {
++		pr_err("SMC firmware status is not correct\n");
++		return ret;
++	}
++
+ 	mutex_lock(&smu->mutex);
+ 
+-	/* TODO */
++	ret = smu_set_tool_table_location(smu);
++	if (ret)
++		goto failed;
++
++	ret = smu_write_pptable(smu);
++	if (ret)
++		goto failed;
++
++	ret = smu_write_watermarks_table(smu);
++	if (ret)
++		goto failed;
++
++	ret = smu_set_last_dcef_min_deep_sleep_clk(smu);
++	if (ret)
++		goto failed;
++
++	ret = smu_system_features_control(smu, true);
++	if (ret)
++		goto failed;
+ 
+ 	mutex_unlock(&smu->mutex);
+ 
++	pr_info("SMU is resumed successfully!\n");
++
+ 	return 0;
++failed:
++	mutex_unlock(&smu->mutex);
++	return ret;
+ }
+ 
+ static int smu_set_clockgating_state(void *handle,
+-- 
+2.17.1
+