[PATCH 01/13] drm/amd/display: Insert smu busy status before sending another request

[Tom Chung]

From: Oliver Logush <oliver.log...@amd.com>

[why]
Need to check if result register is busy before sending another request

[how]
Call method to check if result register is busy

Reviewed-by: Charlene Liu <charlene....@amd.com>
Acked-by: Tom Chung <chiahsuan.ch...@amd.com>
Signed-off-by: Oliver Logush <oliver.log...@amd.com>
---
 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c 
b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c
index d9920d91838d..1cae01a91a69 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c
@@ -94,6 +94,8 @@ static int dcn301_smu_send_msg_with_param(struct 
clk_mgr_internal *clk_mgr,
 {
        uint32_t result;
 
+       result = dcn301_smu_wait_for_response(clk_mgr, 10, 200000);
+
        /* First clear response register */
        REG_WRITE(MP1_SMN_C2PMSG_91, VBIOSSMC_Status_BUSY);
 
-- 
2.25.1