media: i2c: mt9t112: Remove soc_camera dependencies

Remove soc_camera framework dependencies from mt9t112 sensor driver.
- Handle clk, gpios and power routines
- Register async subdev
- Remove deprecated g/s_mbus_config operations
- Remove driver flags
- Change driver interface and add kernel doc
- Adjust build system
- Fix code style issues reported by checkpatch in strict mode

This commit does not remove the original soc_camera based driver as long
as other platforms depends on soc_camera framework.

As I don't have access to a working camera module, this change has only
been compile tested.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/i2c/Kconfig

@@ -788,6 +788,17 @@ config VIDEO_MT9T001
 	  This is a Video4Linux2 sensor-level driver for the Aptina
 	  (Micron) mt0t001 3 Mpixel camera.
 
+config VIDEO_MT9T112
+	tristate "Aptina MT9T111/MT9T112 support"
+	depends on I2C && VIDEO_V4L2
+	depends on MEDIA_CAMERA_SUPPORT
+	---help---
+	  This is a Video4Linux2 sensor-level driver for the Aptina
+	  (Micron) MT9T111 and MT9T112 3 Mpixel camera.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called mt9t112.
+
 config VIDEO_MT9V011
 	tristate "Micron mt9v011 sensor support"
 	depends on I2C && VIDEO_V4L2

drivers/media/i2c/Makefile

@@ -80,6 +80,7 @@ obj-$(CONFIG_VIDEO_MT9M032) += mt9m032.o
 obj-$(CONFIG_VIDEO_MT9M111) += mt9m111.o
 obj-$(CONFIG_VIDEO_MT9P031) += mt9p031.o
 obj-$(CONFIG_VIDEO_MT9T001) += mt9t001.o
+obj-$(CONFIG_VIDEO_MT9T112) += mt9t112.o
 obj-$(CONFIG_VIDEO_MT9V011) += mt9v011.o
 obj-$(CONFIG_VIDEO_MT9V032) += mt9v032.o
 obj-$(CONFIG_VIDEO_SR030PC30)	+= sr030pc30.o

drivers/media/i2c/soc_camera/mt9t112.c

@@ -85,7 +85,7 @@ struct mt9t112_format {
 
 struct mt9t112_priv {
 	struct v4l2_subdev		 subdev;
-	struct mt9t112_camera_info	*info;
+	struct mt9t112_platform_data	*info;
 	struct i2c_client		*client;
 	struct v4l2_rect		 frame;
 	struct v4l2_clk			*clk;

include/media/i2c/mt9t112.h

+/*  SPDX-License-Identifier: GPL-2.0 */
 /* mt9t112 Camera
  *
  * Copyright (C) 2009 Renesas Solutions Corp.
  * Kuninori Morimoto <morimoto.kuninori@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __MT9T112_H__
 #define __MT9T112_H__
 
-#define MT9T112_FLAG_PCLK_RISING_EDGE	(1 << 0)
-#define MT9T112_FLAG_DATAWIDTH_8	(1 << 1) /* default width is 10 */
-
 struct mt9t112_pll_divider {
 	u8 m, n;
 	u8 p1, p2, p3, p4, p5, p6, p7;
 };
 
-/*
- * mt9t112 camera info
+/**
+ * mt9t112_platform_data -	mt9t112 driver interface
+ * @flags:			Sensor media bus configuration.
+ * @divider:			Sensor PLL configuration
  */
-struct mt9t112_camera_info {
+struct mt9t112_platform_data {
+#define MT9T112_FLAG_PCLK_RISING_EDGE	BIT(0)
 	u32 flags;
 	struct mt9t112_pll_divider divider;
 };