Re: [RFC PATCH v11 6/9] media: tegra: Add Tegra210 Video input driver

From: Sowjanya Komatineni
Date: Thu Apr 30 2020 - 15:34:06 EST



On 4/30/20 6:38 AM, Dmitry Osipenko wrote:
30.04.2020 01:00, Sowjanya Komatineni ÐÐÑÐÑ:
+/**
+ * struct tegra_csi_ops - Tegra CSI operations
+ *
+ * @csi_streaming: programs csi hardware to enable or disable streaming.
+ * @csi_err_recover: csi hardware block recovery in case of any capture errors
+ * due to missing source stream or due to improper csi input from
+ * the external source.
+ */
+struct tegra_csi_ops {
+ int (*csi_streaming)(struct tegra_csi_channel *csi_chan, u8 pg_mode,
+ int enable);
What about to split csi_streaming() into csi_start_streaming() /
csi_stop_streaming()?

This will make tegra_csi_ops to be consistent with the tegra_ve_ops. A
separated start/stop operations are somewhat more natural to have in
general.

vi ops is for vb2_ops which has separate start/stop so has seperate start/stop for vi ops.

csi is subdev and csi ops is for v4l2_subdev_ops which as s_stream callback only.

So, created single stream function for csi to match same as subdev_ops.