From 20d3c28ce4e28ac4df9d139054aecb65ee5a9ee4 Mon Sep 17 00:00:00 2001 From: Evan Quan Date: Thu, 13 Aug 2020 11:51:11 +0800 Subject: [PATCH] drm/amd/powerplay: optimize i2c bus access implementation The caller needs not care about the internal details how the powerplay API implemented. Signed-off-by: Evan Quan Reviewed-by: Alex Deucher Acked-by: Nirmoy Das Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c | 15 +++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h | 3 +++ drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c | 15 ++------------- 3 files changed, 20 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c index 5e9baca..3465fdd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c @@ -1247,3 +1247,18 @@ int amdgpu_dpm_set_clockgating_by_smu(struct amdgpu_device *adev, return ret; } + +int amdgpu_dpm_smu_i2c_bus_access(struct amdgpu_device *adev, + bool acquire) +{ + void *pp_handle = adev->powerplay.pp_handle; + const struct amd_pm_funcs *pp_funcs = + adev->powerplay.pp_funcs; + int ret = -EOPNOTSUPP; + + if (pp_funcs && pp_funcs->smu_i2c_bus_access) + ret = pp_funcs->smu_i2c_bus_access(pp_handle, + acquire); + + return ret; +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h index 672b73a..5a2344f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h @@ -545,4 +545,7 @@ int amdgpu_dpm_enable_mgpu_fan_boost(struct amdgpu_device *adev); int amdgpu_dpm_set_clockgating_by_smu(struct amdgpu_device *adev, uint32_t msg_id); +int amdgpu_dpm_smu_i2c_bus_access(struct amdgpu_device *adev, + bool acquire); + #endif diff --git a/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c b/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c index d55bf64..7fb240c 100644 --- a/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c +++ b/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c @@ -508,14 +508,9 @@ static bool smu_v11_0_i2c_bus_lock(struct i2c_adapter *control) struct amdgpu_device *adev = to_amdgpu_device(control); /* Send PPSMC_MSG_RequestI2CBus */ - if (!adev->powerplay.pp_funcs->smu_i2c_bus_access) - goto Fail; - - - if (!adev->powerplay.pp_funcs->smu_i2c_bus_access(adev->powerplay.pp_handle, true)) + if (!amdgpu_dpm_smu_i2c_bus_access(adev, true)) return true; -Fail: return false; } @@ -523,16 +518,10 @@ static bool smu_v11_0_i2c_bus_unlock(struct i2c_adapter *control) { struct amdgpu_device *adev = to_amdgpu_device(control); - /* Send PPSMC_MSG_RequestI2CBus */ - if (!adev->powerplay.pp_funcs->smu_i2c_bus_access) - goto Fail; - /* Send PPSMC_MSG_ReleaseI2CBus */ - if (!adev->powerplay.pp_funcs->smu_i2c_bus_access(adev->powerplay.pp_handle, - false)) + if (!amdgpu_dpm_smu_i2c_bus_access(adev, false)) return true; -Fail: return false; } -- 2.7.4