linux-kernel - [PATCH 1/2] media: qcom: camss: csiphy-3ph: Fix inadvertent dropping of SDM660/SDM670 phy init

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Message-Id: <20250612-linux-next-25-05-30-daily-reviews-v1-1-88ba033a9a03@linaro.org>
Date: Thu, 12 Jun 2025 09:07:15 +0100
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: Robert Foss <rfoss@...nel.org>, Todor Tomov <todor.too@...il.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Hans Verkuil <hverkuil@...all.nl>, Depeng Shao <quic_depengs@...cinc.com>, 
 Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>, 
 Hans Verkuil <hans.verkuil@...co.com>
Cc: linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Bryan O'Donoghue <bryan.odonoghue@...aro.org>, 
 stable@...r.kernel.org
Subject: [PATCH 1/2] media: qcom: camss: csiphy-3ph: Fix inadvertent
 dropping of SDM660/SDM670 phy init

The moving of init sequence hook from gen2() to subdev_init() doesn't
account for gen1 devices such as SDM660 and SDM670. The switch should find
the right offset for gen2 PHYs only, not reject gen1. Remove the default
error case to restore gen1 CSIPHY support.

Cc: stable@...r.kernel.org
Fixes: fbce0ca24c3a ("media: qcom: camss: csiphy-3ph: Move CSIPHY variables to data field inside csiphy struct")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
---
 drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
index f732a76de93e3e7b787d9553bf7f31e6c0596c58..88c0ba495c3271f3d09d2c48f07b03d2a4949061 100644
--- a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
+++ b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
@@ -849,8 +849,7 @@ static int csiphy_init(struct csiphy_device *csiphy)
 		regs->offset = 0x1000;
 		break;
 	default:
-		WARN(1, "unknown csiphy version\n");
-		return -ENODEV;
+		break;
 	}
 
 	return 0;

-- 
2.49.0