[PATCH 1/3] media: rzg2l-cru: Skip ICnMC configuration when ICnSVC is used

[Tommaso Merciai]

When the CRU is configured to use ICnSVC for virtual channel mapping,
as on the RZ/{G3E, V2H/P} SoC, the ICnMC register must not be
programmed.

Return early after setting up ICnSVC to avoid overriding the ICnMC
register, which is not applicable in this mode.

This prevents unintended register programming when ICnSVC is enabled.

Fixes: 3c5ca0a48bb0 ("media: rzg2l-cru: Drop function pointer to configure CSI")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
index 162e2ace6931..480e9b5dbcfe 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
@@ -268,6 +268,8 @@ static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru,
 		rzg2l_cru_write(cru, ICnSVCNUM, csi_vc);
 		rzg2l_cru_write(cru, ICnSVC, ICnSVC_SVC0(0) | ICnSVC_SVC1(1) |
 				ICnSVC_SVC2(2) | ICnSVC_SVC3(3));
+
+		return;
 	}
 
 	icnmc |= rzg2l_cru_read(cru, info->image_conv) & ~ICnMC_INF_MASK;
-- 
2.43.0