[PATCH 06/10] media: rcar-isp: Use v4l2_subdev_{enable|disable}_streams()

From: Tomi Valkeinen
Date: Mon Jan 20 2025 - 08:13:24 EST


Use v4l2_subdev_{enable|disable}_streams() instead of calling s_stream
op directly. This allows the called subdev to drop the legacy s_stream
op.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@xxxxxxxxxxxxxxxx>
---
drivers/media/platform/renesas/rcar-isp.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/renesas/rcar-isp.c b/drivers/media/platform/renesas/rcar-isp.c
index 121fa7524ee1..385fafb2318f 100644
--- a/drivers/media/platform/renesas/rcar-isp.c
+++ b/drivers/media/platform/renesas/rcar-isp.c
@@ -169,6 +169,7 @@ struct rcar_isp {

struct v4l2_async_notifier notifier;
struct v4l2_subdev *remote;
+ unsigned int remote_pad;

struct mutex lock; /* Protects mf and stream_count. */
struct v4l2_mbus_framefmt mf;
@@ -267,7 +268,8 @@ static int risp_start(struct rcar_isp *isp)
/* Start ISP. */
risp_write(isp, ISPSTART_REG, ISPSTART_START);

- ret = v4l2_subdev_call(isp->remote, video, s_stream, 1);
+ ret = v4l2_subdev_enable_streams(isp->remote, isp->remote_pad,
+ BIT_ULL(0));
if (ret)
risp_power_off(isp);

@@ -276,7 +278,7 @@ static int risp_start(struct rcar_isp *isp)

static void risp_stop(struct rcar_isp *isp)
{
- v4l2_subdev_call(isp->remote, video, s_stream, 0);
+ v4l2_subdev_disable_streams(isp->remote, isp->remote_pad, BIT_ULL(0));

/* Stop ISP. */
risp_write(isp, ISPSTART_REG, ISPSTART_STOP);
@@ -387,6 +389,7 @@ static int risp_notify_bound(struct v4l2_async_notifier *notifier,
}

isp->remote = subdev;
+ isp->remote_pad = pad;

dev_dbg(isp->dev, "Bound %s pad: %d\n", subdev->name, pad);


--
2.43.0