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From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-media@vger.kernel.org
Cc: laurent.pinchart@ideasonboard.com,
	Dave Stevenson <dave.stevenson@raspberrypi.com>,
	Jacopo Mondi <jacopo.mondi@ideasonboard.com>,
	Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
	Jai Luthra <jai.luthra@ideasonboard.com>,
	Mehdi Djait <mehdi.djait@linux.intel.com>,
	Frank Li <Frank.li@nxp.com>
Subject: [PATCH v2 06/17] media: v4l2-subdev: Change the maximum number of routes
Date: Mon, 18 May 2026 19:43:06 +0300	[thread overview]
Message-ID: <20260518164318.3367888-7-sakari.ailus@linux.intel.com> (raw)
In-Reply-To: <20260518164318.3367888-1-sakari.ailus@linux.intel.com>

As the frame descriptors are now allocated dynamically, allow as many
routes that there can be dynamically allocated frame descriptors.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/v4l2-core/v4l2-subdev.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index da8464dfb265..ebcc0b40fac1 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -1103,14 +1103,7 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg,
 				num_active_routes++;
 		}
 
-		/*
-		 * Drivers that implement routing need to report a frame
-		 * descriptor accordingly, with up to one entry per route. Until
-		 * the frame descriptors entries get allocated dynamically,
-		 * limit the number of active routes to
-		 * V4L2_FRAME_DESC_ENTRY_PREALLOC.
-		 */
-		if (num_active_routes > V4L2_FRAME_DESC_ENTRY_PREALLOC)
+		if (num_active_routes > V4L2_FRAME_DESC_ENTRY_MAX)
 			return -E2BIG;
 
 		/*
-- 
2.47.3


  parent reply	other threads:[~2026-05-18 16:43 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-18 16:43 [PATCH v2 00/17] Rework frame descriptors Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 01/17] media: v4l2-common: Add helper function media_bus_fmt_to_csi2_(bpp|dt)() Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 02/17] media: v4l2-subdev: Align frame descriptor error codes with routing Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 03/17] media: v4l2-subdev: Prepare for changes in getting frame descriptors Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 04/17] media: v4l2-subdev: Allow releasing frame descriptors on return Sakari Ailus
2026-05-19 21:34   ` Frank Li
2026-05-20 12:56     ` Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 05/17] media: v4l2-subdev: Allocate frame descriptors based on the need Sakari Ailus
2026-05-19 21:53   ` Frank Li
2026-05-19 22:18     ` Frank Li
2026-05-18 16:43 ` Sakari Ailus [this message]
2026-05-19 21:55   ` [PATCH v2 06/17] media: v4l2-subdev: Change the maximum number of routes Frank Li
2026-05-18 16:43 ` [PATCH v2 07/17] media: v4l2-subdev: Return dynamically allocated pass-through routes Sakari Ailus
2026-05-19 22:33   ` Frank Li
2026-05-20 12:59     ` Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 08/17] media: v4l2-subdev: Always return at least one frame descriptor Sakari Ailus
2026-05-19 22:35   ` Frank Li
2026-05-18 16:43 ` [PATCH v2 09/17] media: bcm2835-unicam: Use v4l2_subdev_get_frame_desc() Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 10/17] media: nxp: imx8-isi: " Sakari Ailus
2026-05-19 22:36   ` Frank Li
2026-05-18 16:43 ` [PATCH v2 11/17] media: raspberrypi: cfe: " Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 12/17] media: rzg2l-cru: " Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 13/17] media: rkisp1: " Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 14/17] media: exynos4-is: " Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 15/17] media: ti: cal: " Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 16/17] media: ipu6: " Sakari Ailus
2026-05-18 16:43 ` [PATCH v2 17/17] staging: media: ipu7: " Sakari Ailus
2026-06-11 12:49 ` [PATCH v2 00/17] Rework frame descriptors Tomi Valkeinen
2026-06-12  8:28   ` Sakari Ailus
2026-06-23  7:39   ` Sakari Ailus

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