Commit 115c7e7f authored by Wyatt Wood's avatar Wyatt Wood Committed by Alex Deucher
Browse files

drm/amd/display: Add psr get_state call 



[Why]
Driver needs to know PSR state.

[How]
Use GPINT to call to firmware and get psr state.

Signed-off-by: default avatarWyatt Wood <wyatt.wood@amd.com>
Reviewed-by: default avatarNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: default avatarRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 71bbb1fc

drivers/gpu/drm/amd/display/dc/core/dc_link.c

+1 −1
Original line number Diff line number Diff line
@@ -2451,7 +2451,7 @@ bool dc_link_get_psr_state(const struct dc_link *link, uint32_t *psr_state) 
	struct dmub_psr *psr = dc->res_pool->psr;



	if (psr != NULL && link->psr_feature_enabled)

		psr->funcs->psr_get_state(psr_state);

		psr->funcs->psr_get_state(psr, psr_state);

	else if (dmcu != NULL && link->psr_feature_enabled)

		dmcu->funcs->get_psr_state(dmcu, psr_state);

drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c

+8 −5
Original line number Diff line number Diff line
@@ -29,17 +29,20 @@ 
#include "../../dmub/inc/dmub_srv.h"

#include "dmub_fw_state.h"

#include "core_types.h"

#include "ipp.h"



#define MAX_PIPES 6



/**

 * Get PSR state from firmware.

 */

static void dmub_psr_get_state(uint32_t *psr_state)

static void dmub_psr_get_state(struct dmub_psr *dmub, uint32_t *psr_state)

{

	// Not yet implemented

	// Trigger GPINT interrupt from firmware

	struct dmub_srv *srv = dmub->ctx->dmub_srv->dmub;



	// Send gpint command and wait for ack

	dmub_srv_send_gpint_command(srv, DMUB_GPINT__GET_PSR_STATE, 0, 30);



	dmub_srv_get_gpint_response(srv, psr_state);

}



/**
@@ -100,7 +103,7 @@ static void dmub_psr_set_level(struct dmub_psr *dmub, uint16_t psr_level) 
	uint32_t psr_state = 0;

	struct dc_context *dc = dmub->ctx;



	dmub_psr_get_state(&psr_state);

	dmub_psr_get_state(dmub, &psr_state);



	if (psr_state == 0)

		return;

drivers/gpu/drm/amd/display/dc/dce/dmub_psr.h

+1 −1
Original line number Diff line number Diff line
@@ -36,7 +36,7 @@ struct dmub_psr { 
struct dmub_psr_funcs {

	bool (*psr_copy_settings)(struct dmub_psr *dmub, struct dc_link *link, struct psr_context *psr_context);

	void (*psr_enable)(struct dmub_psr *dmub, bool enable);

	void (*psr_get_state)(uint32_t *psr_state);

	void (*psr_get_state)(struct dmub_psr *dmub, uint32_t *psr_state);

	void (*psr_set_level)(struct dmub_psr *dmub, uint16_t psr_level);

};

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