linux-kernel - [PATCH] media: qcom: camss: Enable setting the rate to camnoc_rt

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Message-Id: <20251014-add-new-clock-in-vfe-matching-list-v1-1-0d965ccc8a3a@oss.qualcomm.com>
Date: Tue, 14 Oct 2025 19:43:15 -0700
From: Hangxiang Ma <hangxiang.ma@....qualcomm.com>
To: Loic Poulain <loic.poulain@....qualcomm.com>,
        Robert Foss <rfoss@...nel.org>, Andi Shyti <andi.shyti@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Todor Tomov <todor.too@...il.com>,
        Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc: linux-i2c@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org,
        Hangxiang Ma <hangxiang.ma@....qualcomm.com>
Subject: [PATCH] media: qcom: camss: Enable setting the rate to
 camnoc_rt_axi clock

On hardware architectures where a single CAMNOC module is split into
two, one for each of the real time (RT) and non real time (NRT) modules
within camera sub system, processing VFE output over the AXI bus
requires enabling and setting the appropriate clock rate for the RT
CAMNOC. This change lays the groundwork for supporting such
configurations.

Signed-off-by: Hangxiang Ma <hangxiang.ma@....qualcomm.com>
---
This change lays the groundwork for supporting configurations for
hardware architectures that split a single CAMNOC module into real time
(RT) and non real time (NRT).
---
 drivers/media/platform/qcom/camss/camss-vfe.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index ee08dbbddf88..09b29ba383f1 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -914,7 +914,8 @@ static int vfe_match_clock_names(struct vfe_device *vfe,
 	return (!strcmp(clock->name, vfe_name) ||
 		!strcmp(clock->name, vfe_lite_name) ||
 		!strcmp(clock->name, "vfe_lite") ||
-		!strcmp(clock->name, "camnoc_axi"));
+		!strcmp(clock->name, "camnoc_axi") ||
+		!strcmp(clock->name, "camnoc_rt_axi"));
 }
 
 /*

---
base-commit: 69a67cb382f428c6dd8ba63e44cd2c59cb84f736
change-id: 20251012-add-new-clock-in-vfe-matching-list-25fb1e378c49

Best regards,
-- 
Hangxiang Ma <hangxiang.ma@....qualcomm.com>