drm/msm: add check for power handle enable failure
Add check for power handle enable failure so that
subsequent failures due to lack of power or clock
can be avoided.
Change-Id: I903c982d9ddd85a353a55879f5ad03436d0844da
Signed-off-by: Alan Kwong <akwong@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde_power_handle.h b/drivers/gpu/drm/msm/sde_power_handle.h
index 6e00184..b0d25ea 100644
--- a/drivers/gpu/drm/msm/sde_power_handle.h
+++ b/drivers/gpu/drm/msm/sde_power_handle.h
@@ -224,6 +224,14 @@
struct sde_power_client *pclient, bool enable);
/**
+ * sde_power_resource_is_enabled() - return true if power resource is enabled
+ * @pdata: power handle containing the resources
+ *
+ * Return: true if enabled; false otherwise
+ */
+int sde_power_resource_is_enabled(struct sde_power_handle *pdata);
+
+/**
* sde_power_data_bus_state_update() - update data bus state
* @pdata: power handle containing the resources
* @enable: take enable vs disable path