drm/amd/pm: Fix return value and drop redundant param

Fix the return value and drop redundant parameter
of get_asic_baco_capability function.
Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/include/kgd_pp_interface.h

@@ -421,7 +421,7 @@ struct amd_pm_funcs {
 	int (*set_hard_min_dcefclk_by_freq)(void *handle, uint32_t clock);
 	int (*set_hard_min_fclk_by_freq)(void *handle, uint32_t clock);
 	int (*set_min_deep_sleep_dcefclk)(void *handle, uint32_t clock);
-	int (*get_asic_baco_capability)(void *handle, bool *cap);
+	bool (*get_asic_baco_capability)(void *handle);
 	int (*get_asic_baco_state)(void *handle, int *state);
 	int (*set_asic_baco_state)(void *handle, int state);
 	int (*get_ppfeature_status)(void *handle, char *buf);

drivers/gpu/drm/amd/pm/amdgpu_dpm.c

@@ -185,8 +185,7 @@ bool amdgpu_dpm_is_baco_supported(struct amdgpu_device *adev)
 {
 	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
 	void *pp_handle = adev->powerplay.pp_handle;
-	bool baco_cap;
-	int ret = 0;
+	bool ret;
 
 	if (!pp_funcs || !pp_funcs->get_asic_baco_capability)
 		return false;
@@ -204,12 +203,11 @@ bool amdgpu_dpm_is_baco_supported(struct amdgpu_device *adev)
 
 	mutex_lock(&adev->pm.mutex);
 
-	ret = pp_funcs->get_asic_baco_capability(pp_handle,
-						 &baco_cap);
+	ret = pp_funcs->get_asic_baco_capability(pp_handle);
 
 	mutex_unlock(&adev->pm.mutex);
 
-	return ret ? false : baco_cap;
+	return ret;
 }
 
 int amdgpu_dpm_mode2_reset(struct amdgpu_device *adev)

drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c

@@ -1371,21 +1371,18 @@ static int pp_set_active_display_count(void *handle, uint32_t count)
 	return phm_set_active_display_count(hwmgr, count);
 }
 
-static int pp_get_asic_baco_capability(void *handle, bool *cap)
+static bool pp_get_asic_baco_capability(void *handle)
 {
 	struct pp_hwmgr *hwmgr = handle;
 
-	*cap = false;
 	if (!hwmgr)
-		return -EINVAL;
+		return false;
 
 	if (!(hwmgr->not_vf && amdgpu_dpm) ||
 		!hwmgr->hwmgr_func->get_asic_baco_capability)
-		return 0;
-
-	hwmgr->hwmgr_func->get_asic_baco_capability(hwmgr, cap);
+		return false;
 
-	return 0;
+	return hwmgr->hwmgr_func->get_asic_baco_capability(hwmgr);
 }
 
 static int pp_get_asic_baco_state(void *handle, int *state)

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_baco.c

@@ -33,21 +33,20 @@
 #include "smu/smu_7_1_2_d.h"
 #include "smu/smu_7_1_2_sh_mask.h"
 
-int smu7_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap)
+bool smu7_baco_get_capability(struct pp_hwmgr *hwmgr)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);
 	uint32_t reg;
 
-	*cap = false;
 	if (!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_BACO))
 		return 0;
 
 	reg = RREG32(mmCC_BIF_BX_FUSESTRAP0);
 
 	if (reg & CC_BIF_BX_FUSESTRAP0__STRAP_BIF_PX_CAPABLE_MASK)
-		*cap = true;
+		return true;
 
-	return 0;
+	return false;
 }
 
 int smu7_baco_get_state(struct pp_hwmgr *hwmgr, enum BACO_STATE *state)

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_baco.h

@@ -25,7 +25,7 @@
 #include "hwmgr.h"
 #include "common_baco.h"
 
-extern int smu7_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap);
+extern bool smu7_baco_get_capability(struct pp_hwmgr *hwmgr);
 extern int smu7_baco_get_state(struct pp_hwmgr *hwmgr, enum BACO_STATE *state);
 extern int smu7_baco_set_state(struct pp_hwmgr *hwmgr, enum BACO_STATE state);
 

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu9_baco.c

@@ -28,14 +28,13 @@
 #include "vega10_inc.h"
 #include "smu9_baco.h"
 
-int smu9_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap)
+bool smu9_baco_get_capability(struct pp_hwmgr *hwmgr)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);
 	uint32_t reg, data;
 
-	*cap = false;
 	if (!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_BACO))
-		return 0;
+		return false;
 
 	WREG32(0x12074, 0xFFF0003B);
 	data = RREG32(0x12075);
@@ -44,10 +43,10 @@ int smu9_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap)
 		reg = RREG32_SOC15(NBIF, 0, mmRCC_BIF_STRAP0);
 
 		if (reg & RCC_BIF_STRAP0__STRAP_PX_CAPABLE_MASK)
-			*cap = true;
+			return true;
 	}
 
-	return 0;
+	return false;
 }
 
 int smu9_baco_get_state(struct pp_hwmgr *hwmgr, enum BACO_STATE *state)

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu9_baco.h

@@ -25,7 +25,7 @@
 #include "hwmgr.h"
 #include "common_baco.h"
 
-extern int smu9_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap);
+extern bool smu9_baco_get_capability(struct pp_hwmgr *hwmgr);
 extern int smu9_baco_get_state(struct pp_hwmgr *hwmgr, enum BACO_STATE *state);
 
 #endif

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_baco.c

@@ -36,23 +36,22 @@ static const struct soc15_baco_cmd_entry clean_baco_tbl[] = {
 	{CMD_WRITE, SOC15_REG_ENTRY(NBIF, 0, mmBIOS_SCRATCH_7), 0, 0, 0, 0},
 };
 
-int vega20_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap)
+bool vega20_baco_get_capability(struct pp_hwmgr *hwmgr)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);
 	uint32_t reg;
 
-	*cap = false;
 	if (!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_BACO))
-		return 0;
+		return false;
 
 	if (((RREG32(0x17569) & 0x20000000) >> 29) == 0x1) {
 		reg = RREG32_SOC15(NBIF, 0, mmRCC_BIF_STRAP0);
 
 		if (reg & RCC_BIF_STRAP0__STRAP_PX_CAPABLE_MASK)
-			*cap = true;
+			return true;
 	}
 
-	return 0;
+	return false;
 }
 
 int vega20_baco_get_state(struct pp_hwmgr *hwmgr, enum BACO_STATE *state)

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_baco.h

@@ -25,7 +25,7 @@
 #include "hwmgr.h"
 #include "common_baco.h"
 
-extern int vega20_baco_get_capability(struct pp_hwmgr *hwmgr, bool *cap);
+extern bool vega20_baco_get_capability(struct pp_hwmgr *hwmgr);
 extern int vega20_baco_get_state(struct pp_hwmgr *hwmgr, enum BACO_STATE *state);
 extern int vega20_baco_set_state(struct pp_hwmgr *hwmgr, enum BACO_STATE state);
 extern int vega20_baco_apply_vdci_flush_workaround(struct pp_hwmgr *hwmgr);

drivers/gpu/drm/amd/pm/powerplay/inc/hwmgr.h

@@ -351,7 +351,7 @@ struct pp_hwmgr_func {
 	int (*set_hard_min_fclk_by_freq)(struct pp_hwmgr *hwmgr, uint32_t clock);
 	int (*set_hard_min_gfxclk_by_freq)(struct pp_hwmgr *hwmgr, uint32_t clock);
 	int (*set_soft_max_gfxclk_by_freq)(struct pp_hwmgr *hwmgr, uint32_t clock);
-	int (*get_asic_baco_capability)(struct pp_hwmgr *hwmgr, bool *cap);
+	bool (*get_asic_baco_capability)(struct pp_hwmgr *hwmgr);
 	int (*get_asic_baco_state)(struct pp_hwmgr *hwmgr, enum BACO_STATE *state);
 	int (*set_asic_baco_state)(struct pp_hwmgr *hwmgr, enum BACO_STATE state);
 	int (*get_ppfeature_status)(struct pp_hwmgr *hwmgr, char *buf);

drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c

@@ -3005,19 +3005,17 @@ static int smu_set_xgmi_pstate(void *handle,
 	return ret;
 }
 
-static int smu_get_baco_capability(void *handle, bool *cap)
+static bool smu_get_baco_capability(void *handle)
 {
 	struct smu_context *smu = handle;
 
-	*cap = false;
-
 	if (!smu->pm_enabled)
-		return 0;
+		return false;
 
-	if (smu->ppt_funcs && smu->ppt_funcs->baco_is_support)
-		*cap = smu->ppt_funcs->baco_is_support(smu);
+	if (!smu->ppt_funcs || !smu->ppt_funcs->baco_is_support)
+		return false;
 
-	return 0;
+	return smu->ppt_funcs->baco_is_support(smu);
 }
 
 static int smu_baco_set_state(void *handle, int state)