Thread (8 messages) 8 messages, 4 authors, 2019-07-16

Re: [PATCH v9 2/2] media: v4l: xilinx: Add Xilinx MIPI CSI-2 Rx Subsystem driver

From: Sakari Ailus <sakari.ailus@iki.fi>
Date: 2019-07-16 18:33:34
Also in: linux-devicetree, linux-media, lkml

Hi Vishal,

On Thu, Jul 11, 2019 at 09:09:37AM +0000, Vishal Sagar wrote:
...
quoted
quoted
+static int xcsi2rxss_subscribe_event(struct v4l2_subdev *sd,
+                                  struct v4l2_fh *fh,
+                                  struct v4l2_event_subscription *sub)
+{
+     struct xcsi2rxss_state *xcsi2rxss = to_xcsi2rxssstate(sd);
+     int ret;
+
+     mutex_lock(&xcsi2rxss->lock);
+
+     switch (sub->type) {
+     case V4L2_EVENT_XILINX_CSI2RX_SLBF:
+             ret = v4l2_event_subscribe(fh, sub, XCSI_MAX_EVENT, NULL);
Please either use dev_dbg() or propose an API for conveying this
information downstream in the pipeline.
I will use a dev_alert() in the irq handler for this for now and remove this event.
dev_dbg(), please, as this is certainly not fatal. We should probably have
an API to tell this to the downstream sub-device driver in the pipeline if
the hardware has no way to detect this independently.

-- 
Regards,

Sakari Ailus

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