[PATCH v4 6/8] media: uapi: Add mlx7502x header file

[Volodymyr Kharuk <vkh@melexis.com>]

Define user controls for mlx7502x driver, add its documentation and
update MAINTAINERS

Signed-off-by: Volodymyr Kharuk <vkh@melexis.com>
---
 .../userspace-api/media/drivers/index.rst     |  1 +
 .../userspace-api/media/drivers/mlx7502x.rst  | 28 +++++++++++++++++++
 MAINTAINERS                                   |  2 ++
 include/uapi/linux/mlx7502x.h                 | 28 +++++++++++++++++++
 4 files changed, 59 insertions(+)
 create mode 100644 Documentation/userspace-api/media/drivers/mlx7502x.rst
 create mode 100644 include/uapi/linux/mlx7502x.h

diff --git a/Documentation/userspace-api/media/drivers/index.rst b/Documentation/userspace-api/media/drivers/index.rst
index 46a494e00b72..0eb707516b23 100644
--- a/Documentation/userspace-api/media/drivers/index.rst
+++ b/Documentation/userspace-api/media/drivers/index.rst
@@ -38,5 +38,6 @@ For more details see the file COPYING in the source distribution of Linux.
 	imx-uapi
 	max2175
 	meye-uapi
+	mlx7502x
 	omap3isp-uapi
 	uvcvideo
diff --git a/Documentation/userspace-api/media/drivers/mlx7502x.rst b/Documentation/userspace-api/media/drivers/mlx7502x.rst
new file mode 100644
index 000000000000..d68506c09f84
--- /dev/null
+++ b/Documentation/userspace-api/media/drivers/mlx7502x.rst
@@ -0,0 +1,28 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Melexis mlx7502x ToF camera sensor driver
+=========================================
+
+The mlx7502x driver implements the following driver-specific controls:
+
+``V4L2_CID_MLX7502X_OUTPUT_MODE (menu)``
+----------------------------------------
+	The sensor has two taps, which gather reflected light: A and B.
+	The control sets the way data should be put in a buffer. The most
+	common output mode is A-B which provides the best sunlight robustness.
+
+.. flat-table::
+	:header-rows:  0
+	:stub-columns: 0
+	:widths:       1 4
+
+	* - ``V4L2_MLX7502X_OUTPUT_MODE_A_MINUS_B``
+	  - tap A minus tap B
+	* - ``V4L2_MLX7502X_OUTPUT_MODE_A_PLUS_B``
+	  - tap A plus tap B
+	* - ``V4L2_MLX7502X_OUTPUT_MODE_A``
+	  - only tap A
+	* - ``V4L2_MLX7502X_OUTPUT_MODE_B``
+	  - only tap B
+	* - ``V4L2_MLX7502X_OUTPUT_MODE_A_AND_B``
+	  - tap A and tap B (this config will change PAD format)
diff --git a/MAINTAINERS b/MAINTAINERS
index 6f9072f3b1da..32e49523e9c0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13116,7 +13116,9 @@ M:	Volodymyr Kharuk <vkh@melexis.com>
 L:	linux-media@vger.kernel.org
 S:	Supported
 W:	http://www.melexis.com
+F:	Documentation/userspace-api/media/drivers/mlx7502x.rst
 F:	Documentation/userspace-api/media/v4l/ext-ctrls-tof.rst
+F:	include/uapi/linux/mlx7502x.h
 
 MELFAS MIP4 TOUCHSCREEN DRIVER
 M:	Sangwon Jee <jeesw@melfas.com>
diff --git a/include/uapi/linux/mlx7502x.h b/include/uapi/linux/mlx7502x.h
new file mode 100644
index 000000000000..80e9317ff0fc
--- /dev/null
+++ b/include/uapi/linux/mlx7502x.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Melexis 7502x ToF cameras driver.
+ *
+ * Copyright (C) 2021 Melexis N.V.
+ *
+ */
+
+#ifndef __UAPI_MLX7502X_H_
+#define __UAPI_MLX7502X_H_
+
+#include <linux/v4l2-controls.h>
+
+/*
+ * this is related to the taps in ToF cameras,
+ * usually A minus B is the best option
+ */
+enum v4l2_mlx7502x_output_mode {
+	V4L2_MLX7502X_OUTPUT_MODE_A_MINUS_B = 0,
+	V4L2_MLX7502X_OUTPUT_MODE_A_PLUS_B,
+	V4L2_MLX7502X_OUTPUT_MODE_A,
+	V4L2_MLX7502X_OUTPUT_MODE_B,
+	V4L2_MLX7502X_OUTPUT_MODE_A_AND_B, /* output frame size doubles */
+};
+
+#define V4L2_CID_MLX7502X_OUTPUT_MODE	(V4L2_CID_USER_MLX7502X_BASE + 0)
+
+#endif /* __UAPI_MLX7502X_H_ */
-- 
BR,
Volodymyr Kharuk