linux-kernel - [PATCH 06/10] media: rcar-isp: Use v4l2_subdev_{enable|disable}

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250120-rcar-media-impro-v1-6-043823c3893e@ideasonboard.com>
Date: Mon, 20 Jan 2025 15:10:39 +0200
From: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
To: Niklas Söderlund <niklas.soderlund@...natech.se>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
Subject: [PATCH 06/10] media: rcar-isp: Use
 v4l2_subdev_{enable|disable}_streams()

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@...asonboard.com>
---
 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