torvalds/linux
3
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-07 15:09:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

media: rcar-isp: Parse named cs memory region

Browse Source 
Extend the device tree parsing to optionally parse the cs memory region
by name. The change is backward compatible with the device tree model
where a single unnamed region describes only the ISP channel select
function.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20250423163113.2961049-8-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Niklas Söderlund
2025-04-23 18:31:13 +02:00
committed by Hans Verkuil
parent 7281a7bd5b
commit 09d76b4e83
1 changed files with 12 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/media/platform/renesas/rcar-isp/csisp.c
View File

@@ -465,7 +465,18 @@ static const struct media_entity_operations risp_entity_ops = {
static int risp_probe_resources(struct rcar_isp *isp,
struct platform_device *pdev)
{
isp->csbase = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
struct resource *res;
/*
* For backward compatibility allow cs base to be the only reg if no
* reg-names are set in DT.
*/
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cs");
if (!res)
isp->csbase = devm_platform_ioremap_resource(pdev, 0);
else
isp->csbase = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(isp->csbase))
return PTR_ERR(isp->csbase);