[PATCH 061/138] drm/amd/powerplay: implement smu_init_display for smu11

[Huang Rui]

From: Kevin Wang <Kevin1.Wang at amd.com>

Add smu_init_display function to send msg to smc to init display.

Signed-off-by: Kevin Wang <Kevin1.Wang at amd.com>
Reviewed-by: Huang Ray <ray.huang at amd.com>
---
 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c     | 4 ++++
 drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 4 ++++
 drivers/gpu/drm/amd/powerplay/smu_v11_0.c      | 8 ++++++++
 3 files changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index e4da464..773a388 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -236,6 +236,10 @@ static int smu_smc_table_hw_init(struct smu_context *smu)
 {
 	int ret;
 
+	ret = smu_init_display(smu);
+	if (ret)
+		return ret;
+
 	ret = smu_read_pptable_from_vbios(smu);
 	if (ret)
 		return ret;
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index bd8af3d..a618910 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -223,6 +223,7 @@ struct smu_funcs
 	int (*send_smc_msg)(struct smu_context *smu, uint16_t msg);
 	int (*send_smc_msg_with_param)(struct smu_context *smu, uint16_t msg, uint32_t param);
 	int (*read_smc_arg)(struct smu_context *smu, uint32_t *arg);
+	int (*init_display)(struct smu_context *smu);
 
 };
 
@@ -276,6 +277,9 @@ struct smu_funcs
 	((smu)->funcs->read_smc_arg? (smu)->funcs->read_smc_arg((smu), (arg)) : 0)
 #define smu_alloc_dpm_context(smu) \
 	((smu)->ppt_funcs->alloc_dpm_context ? (smu)->ppt_funcs->alloc_dpm_context((smu)) : 0)
+#define smu_init_display(smu) \
+	((smu)->funcs->init_display ? (smu)->funcs->init_display((smu)) : 0)
+
 #define smu_store_powerplay_table(smu) \
 	((smu)->ppt_funcs->store_powerplay_table ? (smu)->ppt_funcs->store_powerplay_table((smu)) : 0)
 #define smu_check_powerplay_table(smu) \
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 9cb1796..d093304 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -658,6 +658,13 @@ static int smu_v11_0_set_tool_table_location(struct smu_context *smu)
 	return ret;
 }
 
+static int smu_v11_0_init_display(struct smu_context *smu)
+{
+	int ret = 0;
+	ret = smu_send_smc_msg_with_param(smu, SMU_MSG_NumOfDisplays, 0);
+	return ret;
+}
+
 static const struct smu_funcs smu_v11_0_funcs = {
 	.init_microcode = smu_v11_0_init_microcode,
 	.load_microcode = smu_v11_0_load_microcode,
@@ -680,6 +687,7 @@ static const struct smu_funcs smu_v11_0_funcs = {
 	.write_pptable = smu_v11_0_write_pptable,
 	.set_min_dcef_deep_sleep = smu_v11_0_set_min_dcef_deep_sleep,
 	.set_tool_table_location = smu_v11_0_set_tool_table_location,
+	.init_display = smu_v11_0_init_display,
 };
 
 void smu_v11_0_set_smu_funcs(struct smu_context *smu)
-- 
2.7.4