{
struct amdgpu_device *adev = to_amdgpu_device(i2c);
- if (!smu_v11_0_i2c_bus_lock(i2c)) {
+ mutex_lock(&adev->pm.smu_i2c_mutex);
+ if (!smu_v11_0_i2c_bus_lock(i2c))
DRM_ERROR("Failed to lock the bus from SMU");
- return;
- }
-
- adev->pm.bus_locked = true;
+ else
+ adev->pm.bus_locked = true;
}
static int trylock_bus(struct i2c_adapter *i2c, unsigned int flags)
{
struct amdgpu_device *adev = to_amdgpu_device(i2c);
- if (!smu_v11_0_i2c_bus_unlock(i2c)) {
+ if (!smu_v11_0_i2c_bus_unlock(i2c))
DRM_ERROR("Failed to unlock the bus from SMU");
- return;
- }
-
- adev->pm.bus_locked = false;
+ else
+ adev->pm.bus_locked = false;
+ mutex_unlock(&adev->pm.smu_i2c_mutex);
}
static const struct i2c_lock_operations smu_v11_0_i2c_i2c_lock_ops = {
struct amdgpu_device *adev = to_amdgpu_device(control);
int res;
+ mutex_init(&adev->pm.smu_i2c_mutex);
control->owner = THIS_MODULE;
control->class = I2C_CLASS_SPD;
control->dev.parent = &adev->pdev->dev;