drm/amd/display: apply edge-case DISPCLK WDIVIDER changes to master OTG pipes only

[Why]
The edge-case DISPCLK WDIVIDER changes call stream_enc functions.
But with MPC pipes, downstream pipes have null stream_enc and will
 cause crash.

[How]
Only call stream_enc functions for pipes that are OTG master.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Samson Tam <samson.tam@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c
index c435f76..5ee8796 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c
@@ -157,7 +157,7 @@ void dcn20_update_clocks_update_dentist(struct clk_mgr_internal *clk_mgr, struct
                        int32_t N;
                        int32_t j;
 
-                       if (!pipe_ctx->stream)
+                       if (!resource_is_pipe_type(pipe_ctx, OTG_MASTER))
                                continue;
                        /* Virtual encoders don't have this function */
                        if (!stream_enc->funcs->get_fifo_cal_average_level)
@@ -188,7 +188,7 @@ void dcn20_update_clocks_update_dentist(struct clk_mgr_internal *clk_mgr, struct
                        int32_t N;
                        int32_t j;
 
-                       if (!pipe_ctx->stream)
+                       if (!resource_is_pipe_type(pipe_ctx, OTG_MASTER))
                                continue;
                        /* Virtual encoders don't have this function */
                        if (!stream_enc->funcs->get_fifo_cal_average_level)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
index 984b529..e9345f6 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c
@@ -355,7 +355,7 @@ static void dcn32_update_clocks_update_dentist(
                        int32_t N;
                        int32_t j;
 
-                       if (!pipe_ctx->stream)
+                       if (!resource_is_pipe_type(pipe_ctx, OTG_MASTER))
                                continue;
                        /* Virtual encoders don't have this function */
                        if (!stream_enc->funcs->get_fifo_cal_average_level)
@@ -401,7 +401,7 @@ static void dcn32_update_clocks_update_dentist(
                        int32_t N;
                        int32_t j;
 
-                       if (!pipe_ctx->stream)
+                       if (!resource_is_pipe_type(pipe_ctx, OTG_MASTER))
                                continue;
                        /* Virtual encoders don't have this function */
                        if (!stream_enc->funcs->get_fifo_cal_average_level)