linux-kernel - [PATCH v2 2/4] media: uapi: Add custom IMX585 control IDs

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Message-Id: <20250810220921.14307-3-will@willwhang.com>
Date: Sun, 10 Aug 2025 23:09:19 +0100
From: Will Whang <will@...lwhang.com>
To: Will Whang <will@...lwhang.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc: linux-media@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2 2/4] media: uapi: Add custom IMX585 control IDs

Reserve a private control ID block and define the helper enums
used by the upcoming IMX585 driver.

Signed-off-by: Will Whang <will@...lwhang.com>
---
 MAINTAINERS                        |  1 +
 include/uapi/linux/imx585.h        | 20 ++++++++++++++++++++
 include/uapi/linux/v4l2-controls.h |  6 ++++++
 3 files changed, 27 insertions(+)
 create mode 100644 include/uapi/linux/imx585.h

diff --git a/MAINTAINERS b/MAINTAINERS
index ef04ee4ec..e6aeac0c5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -23183,6 +23183,7 @@ M:	Will Whang <will@...lwhang.com>
 L:	linux-media@...r.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/media/i2c/sony,imx585.yaml
+F:	include/uapi/linux/imx585.h
 
 SONY MEMORYSTICK SUBSYSTEM
 M:	Maxim Levitsky <maximlevitsky@...il.com>
diff --git a/include/uapi/linux/imx585.h b/include/uapi/linux/imx585.h
new file mode 100644
index 000000000..30e12df88
--- /dev/null
+++ b/include/uapi/linux/imx585.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * IMX585 V4L2 controls user space header file.
+ *
+ */
+
+#ifndef __UAPI_IMX585_H_
+#define __UAPI_IMX585_H_
+
+#include <linux/v4l2-controls.h>
+
+#define V4L2_CID_IMX585_HDR_DATASEL_TH   (V4L2_CID_USER_IMX585_BASE + 0)
+#define V4L2_CID_IMX585_HDR_DATASEL_BK   (V4L2_CID_USER_IMX585_BASE + 1)
+#define V4L2_CID_IMX585_HDR_GRAD_TH      (V4L2_CID_USER_IMX585_BASE + 2)
+#define V4L2_CID_IMX585_HDR_GRAD_COMP_L  (V4L2_CID_USER_IMX585_BASE + 3)
+#define V4L2_CID_IMX585_HDR_GRAD_COMP_H  (V4L2_CID_USER_IMX585_BASE + 4)
+#define V4L2_CID_IMX585_HDR_GAIN         (V4L2_CID_USER_IMX585_BASE + 5)
+#define V4L2_CID_IMX585_HCG_GAIN         (V4L2_CID_USER_IMX585_BASE + 6)
+
+#endif /* __UAPI_IMX585_H_ */
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index f836512e9..091a044e5 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -228,6 +228,12 @@ enum v4l2_colorfx {
  */
 #define V4L2_CID_USER_RKISP1_BASE		(V4L2_CID_USER_BASE + 0x1220)
 
+/*
+ * The base for IMX585 driver controls.
+ * We reserve 16 controls for this driver.
+ */
+#define V4L2_CID_USER_IMX585_BASE               (V4L2_CID_USER_BASE + 0x1230)
+
 /* MPEG-class control IDs */
 /* The MPEG controls are applicable to all codec controls
  * and the 'MPEG' part of the define is historical */
-- 
2.39.5