linux-kernel - [PATCH 05/11] media: exynos4-is: Improve support for sensors with multiple pads

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Message-ID: <BN6PR04MB06604D29C9F66EB53FB17581A3AE0@BN6PR04MB0660.namprd04.prod.outlook.com>
Date:   Sat, 25 Apr 2020 19:26:44 -0700
From:   Jonathan Bakker <xc-racer2@...e.ca>
To:     kyungmin.park@...sung.com, s.nawrocki@...sung.com,
        mchehab@...nel.org, kgene@...nel.org, krzk@...nel.org,
        linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Jonathan Bakker <xc-racer2@...e.ca>
Subject: [PATCH 05/11] media: exynos4-is: Improve support for sensors with multiple pads

Commit 1c9f5bd7cb8a ("[media] s5p-fimc: Add support for sensors with
multiple pads") caught the case where a sensor with multiple pads was
connected via CSIS, but missed the case where the sensor was directly
connected to the FIMC.

This still assumes that the last pad of a sensor is the source.

Signed-off-by: Jonathan Bakker <xc-racer2@...e.ca>
---
 drivers/media/platform/exynos4-is/media-dev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index 5c32abc7251b..b38445219c72 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -991,7 +991,8 @@ static int fimc_md_create_links(struct fimc_md *fmd)
 
 		case FIMC_BUS_TYPE_ITU_601...FIMC_BUS_TYPE_ITU_656:
 			source = &sensor->entity;
-			pad = 0;
+			/* Assume the last pad is the source */
+			pad = sensor->entity.num_pads - 1;
 			break;
 
 		default:
-- 
2.20.1