drm/amd/display: add set and get clock for testing purposes
add dc_set_clock
add dc_get_clock
this is for testing and diagnostics to get/set DPPCLK and DISPCLK.
Signed-off-by: Charlene Liu <[email protected]>
Reviewed-by: Dmytro Laktyushkin <[email protected]>
Acked-by: Leo Li <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_status.h b/drivers/gpu/drm/amd/display/dc/inc/core_status.h
index 0a094d7..fd39e2a 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/core_status.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/core_status.h
@@ -48,6 +48,9 @@ enum dc_status {
DC_NO_DSC_RESOURCE = 17,
#endif
DC_FAIL_UNSUPPORTED_1 = 18,
+ DC_FAIL_CLK_EXCEED_MAX = 21,
+ DC_FAIL_CLK_BELOW_MIN = 22, /*THIS IS MIN PER IP*/
+ DC_FAIL_CLK_BELOW_CFG_REQUIRED = 23, /*THIS IS hard_min in PPLIB*/
DC_ERROR_UNEXPECTED = -1
};
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h
index 36ebd5b..938bdc5 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h
@@ -28,6 +28,9 @@
#include "dc.h"
+#define DCN_MINIMUM_DISPCLK_Khz 100000
+#define DCN_MINIMUM_DPPCLK_Khz 100000
+
/* Public interfaces */
struct clk_states {
@@ -51,6 +54,10 @@ struct clk_mgr_funcs {
void (*init_clocks)(struct clk_mgr *clk_mgr);
void (*enable_pme_wa) (struct clk_mgr *clk_mgr);
+ void (*get_clock)(struct clk_mgr *clk_mgr,
+ struct dc_state *context,
+ enum dc_clock_type clock_type,
+ struct dc_clock_config *clock_cfg);
};
struct clk_mgr {
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
index 4d56d48..36be08a 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
@@ -294,6 +294,15 @@ struct hw_sequencer_funcs {
void (*disable_writeback)(struct dc *dc,
unsigned int dwb_pipe_inst);
#endif
+ enum dc_status (*set_clock)(struct dc *dc,
+ enum dc_clock_type clock_type,
+ uint32_t clk_khz,
+ uint32_t stepping);
+
+ void (*get_clock)(struct dc *dc,
+ enum dc_clock_type clock_type,
+ struct dc_clock_config *clock_cfg);
+
};
void color_space_to_black_color(
