msm: sde: support inline rotation start event
Inline rotations are triggered by the external DRM driver, so
the rotator driver needs to delay its 'is done' checking until
the DRM driver indicates that the commit has started.
This patch adds support for an 'inline start' command that may
be sent by the DRM driver to indicate that the hardware
commit is ready to begin.
CRs-Fixed: 2046958
Change-Id: I460fde8de1a3b815785f3ae7ea21c986b3ca68f1
Signed-off-by: Clarence Ip <cip@codeaurora.org>
diff --git a/drivers/media/platform/msm/sde/rotator/sde_rotator_core.h b/drivers/media/platform/msm/sde/rotator/sde_rotator_core.h
index 0051e96..7b8a066 100644
--- a/drivers/media/platform/msm/sde/rotator/sde_rotator_core.h
+++ b/drivers/media/platform/msm/sde/rotator/sde_rotator_core.h
@@ -21,6 +21,7 @@
#include <linux/types.h>
#include <linux/cdev.h>
#include <linux/pm_runtime.h>
+#include <linux/completion.h>
#include "sde_rotator_base.h"
#include "sde_rotator_util.h"
@@ -115,6 +116,7 @@
SDE_ROTATOR_TS_QUEUE, /* wait for h/w resource */
SDE_ROTATOR_TS_COMMIT, /* prepare h/w command */
SDE_ROTATOR_TS_FLUSH, /* initiate h/w processing */
+ SDE_ROTATOR_TS_START, /* h/w triggered (if inline) */
SDE_ROTATOR_TS_DONE, /* receive h/w completion */
SDE_ROTATOR_TS_RETIRE, /* signal destination buffer fence */
SDE_ROTATOR_TS_SRCDQB, /* dequeue source buffer */
@@ -199,6 +201,9 @@
/* Time stamp for profiling purposes */
ktime_t *ts;
+
+ /* Completion structure for inline rotation */
+ struct completion inline_start;
};
/*
@@ -604,6 +609,23 @@
u32 count, u32 flags);
/*
+ * sde_rotator_req_reset_start - reset inline h/w 'start' indicator
+ * For inline rotations, the time of rotation start is not controlled
+ * by the rotator driver. This function resets an internal 'start'
+ * indicator that allows the rotator to delay its rotator
+ * timeout waiting until such time as the inline rotation has
+ * really started.
+ * @req: Pointer to rotation request
+ */
+void sde_rotator_req_reset_start(struct sde_rot_entry_container *req);
+
+/*
+ * sde_rotator_req_set_start - set inline h/w 'start' indicator
+ * @req: Pointer to rotation request
+ */
+void sde_rotator_req_set_start(struct sde_rot_entry_container *req);
+
+/*
* sde_rotator_req_finish - notify manager that client is finished with the
* given request and manager can release the request as required
* @rot_dev: Pointer to rotator device