1 files changed, 82 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1334-drm-amd-powerplay-add-interface-to-read-pptable-from.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1334-drm-amd-powerplay-add-interface-to-read-pptable-from.patch
new file mode 100644
index 00000000..d77a0665
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1334-drm-amd-powerplay-add-interface-to-read-pptable-from.patch
@@ -0,0 +1,82 @@
+From df86f873a15819d207e7eb101745fc10e35aef53 Mon Sep 17 00:00:00 2001
+From: Huang Rui <ray.huang@amd.com>
+Date: Tue, 4 Dec 2018 17:14:41 +0800
+Subject: [PATCH 1334/2940] drm/amd/powerplay: add interface to read pptable
+ from vbios
+
+This patch adds interface to read pptable from vbios for smu.
+
+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    | 19 ++++++++++++++++++-
+ .../gpu/drm/amd/powerplay/inc/amdgpu_smu.h    |  3 +++
+ 2 files changed, 21 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+index b78125207b67..145435f05bc2 100644
+--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
++++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+@@ -87,6 +87,17 @@ static int smu_sw_fini(void *handle)
+ 	return 0;
+ }
+ 
++static int smu_smc_table_hw_init(struct smu_context *smu)
++{
++	int ret;
++
++	ret = smu_read_pptable_from_vbios(smu);
++	if (ret)
++		return ret;
++
++	return 0;
++}
++
+ static int smu_hw_init(void *handle)
+ {
+ 	int ret;
+@@ -110,13 +121,19 @@ static int smu_hw_init(void *handle)
+ 
+ 	mutex_lock(&smu->mutex);
+ 
+-	/* TODO */
++	ret = smu_smc_table_hw_init(smu);
++	if (ret)
++		goto failed;
+ 
+ 	mutex_unlock(&smu->mutex);
+ 
+ 	pr_info("SMU is initialized successfully!\n");
+ 
+ 	return 0;
++
++failed:
++	mutex_unlock(&smu->mutex);
++	return ret;
+ }
+ 
+ static int smu_hw_fini(void *handle)
+diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+index 923a923d0050..1e5a784398f8 100644
+--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
++++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+@@ -37,6 +37,7 @@ struct smu_funcs
+ 	int (*init_microcode)(struct smu_context *smu);
+ 	int (*load_microcode)(struct smu_context *smu);
+ 	int (*check_fw_status)(struct smu_context *smu);
++	int (*read_pptable_from_vbios)(struct smu_context *smu);
+ };
+ 
+ #define smu_init_microcode(smu) \
+@@ -45,6 +46,8 @@ struct smu_funcs
+ 	((smu)->funcs->load_microcode ? (smu)->funcs->load_microcode((smu)) : 0)
+ #define smu_check_fw_status(smu) \
+ 	((smu)->funcs->check_fw_status ? (smu)->funcs->check_fw_status((smu)) : 0)
++#define smu_read_pptable_from_vbios(smu) \
++	((smu)->funcs->read_pptable_from_vbios ? (smu)->funcs->read_pptable_from_vbios((smu)) : 0)
+ 
+ extern const struct amd_ip_funcs smu_ip_funcs;
+ 
+-- 
+2.17.1
+