[media] omap3isp: Add set performance callback in isp platform data

Replace the omap_pm_set_min_bus_tput() with a callback to board code.
This makes the omap3isp driver compilable as a module, and lets board
code manage OMAP PM details depending on board requirements.

Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 7 insertions, 15 deletions

diff --git a/drivers/media/video/omap3isp/isp.h b/drivers/media/video/omap3isp/isp.h
index a8dfea413d34..cf5214e95a92 100644
--- a/drivers/media/video/omap3isp/isp.h
+++ b/drivers/media/video/omap3isp/isp.h
@@ -199,6 +199,7 @@ struct isp_v4l2_subdevs_group {
 
 struct isp_platform_data {
         struct isp_v4l2_subdevs_group *subdevs;
+        void (*set_constraints)(struct isp_device *isp, bool enable);
 };
 
 struct isp_platform_callback {
diff --git a/drivers/media/video/omap3isp/ispvideo.c b/drivers/media/video/omap3isp/ispvideo.c
index 517a24de5836..a0bb5db9cb8a 100644
--- a/drivers/media/video/omap3isp/ispvideo.c
+++ b/drivers/media/video/omap3isp/ispvideo.c
@@ -921,18 +921,8 @@ isp_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
                 pipe->output = far_end;
         }
 
-        /* Make sure the interconnect clock runs fast enough.
-         *
-         * Formula from: resource34xx.c set_opp()
-         * If MPU freq is above 500MHz, make sure the interconnect
-         * is at 100Mhz or above.
-         * throughput in KiB/s for 100 Mhz = 100 * 1000 * 4.
-         *
-         * We want to be fast enough then set OCP clock to be max as
-         * possible, in that case 185Mhz then:
-         * throughput in KiB/s for 185Mhz = 185 * 1000 * 4 = 740000 KiB/s
-         */
-        omap_pm_set_min_bus_tput(video->isp->dev, OCP_INITIATOR_AGENT, 740000);
+        if (video->isp->pdata->set_constraints)
+                video->isp->pdata->set_constraints(video->isp, true);
         pipe->l3_ick = clk_get_rate(video->isp->clock[ISP_CLK_L3_ICK]);
 
         /* Validate the pipeline and update its state. */
@@ -978,8 +968,8 @@ isp_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
 error:
         if (ret < 0) {
                 omap3isp_video_queue_streamoff(&vfh->queue);
-                omap_pm_set_min_bus_tput(video->isp->dev,
-                                         OCP_INITIATOR_AGENT, 0);
+                if (video->isp->pdata->set_constraints)
+                        video->isp->pdata->set_constraints(video->isp, false);
                 media_entity_pipeline_stop(&video->video.entity);
                 video->queue = NULL;
         }
@@ -1032,7 +1022,8 @@ isp_video_streamoff(struct file *file, void *fh, enum v4l2_buf_type type)
         video->queue = NULL;
         video->streaming = 0;
 
-        omap_pm_set_min_bus_tput(video->isp->dev, OCP_INITIATOR_AGENT, 0);
+        if (video->isp->pdata->set_constraints)
+                video->isp->pdata->set_constraints(video->isp, false);
         media_entity_pipeline_stop(&video->video.entity);
 
 done: