diff options
| author | Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> | 2025-04-23 18:31:13 +0200 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2025-05-02 10:16:43 +0200 |
| commit | 09d76b4e83e4911238f74a2ba48d92db6e04f10a (patch) | |
| tree | 5ead10eec5aaaa12260fc901307a2c4b046a4756 | |
| parent | 7281a7bd5b7b57fb6841f27e95115934ab25f4a4 (diff) | |
media: rcar-isp: Parse named cs memory region
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>
| -rw-r--r-- | drivers/media/platform/renesas/rcar-isp/csisp.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/media/platform/renesas/rcar-isp/csisp.c b/drivers/media/platform/renesas/rcar-isp/csisp.c index f36d43c2e0a2..1eb29a0b774a 100644 --- a/drivers/media/platform/renesas/rcar-isp/csisp.c +++ b/drivers/media/platform/renesas/rcar-isp/csisp.c @@ -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); |