media: i2c: Drop unused m5mols camera sensor driver

The m5mols camera sensor driver doesn't support DT and relies on
platform data. The last board files supplying platform data for that
device have been removed from the kernel in v3.11. The driver hasn't
been used since them. Drop it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

Documentation/admin-guide/media/i2c-cardlist.rst

@@ -72,7 +72,6 @@ imx319        Sony IMX319 sensor
 imx334        Sony IMX334 sensor
 imx355        Sony IMX355 sensor
 imx412        Sony IMX412 sensor
-m5mols        Fujitsu M-5MOLS 8MP sensor
 mt9m001       mt9m001
 mt9m032       MT9M032 camera sensor
 mt9m111       mt9m111, mt9m112 and mt9m131

MAINTAINERS

@@ -8411,14 +8411,6 @@ L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/fujitsu-laptop.c
 
-FUJITSU M-5MO LS CAMERA ISP DRIVER
-M:	Kyungmin Park <kyungmin.park@samsung.com>
-M:	Heungjun Kim <riverful.kim@samsung.com>
-L:	linux-media@vger.kernel.org
-S:	Maintained
-F:	drivers/media/i2c/m5mols/
-F:	include/media/i2c/m5mols.h
-
 FUJITSU TABLET EXTRAS
 M:	Robert Gerlach <khnz@gmx.de>
 L:	platform-driver-x86@vger.kernel.org

drivers/media/i2c/Kconfig

@@ -848,7 +848,6 @@ config VIDEO_VS6624
 
 source "drivers/media/i2c/ccs/Kconfig"
 source "drivers/media/i2c/et8ek8/Kconfig"
-source "drivers/media/i2c/m5mols/Kconfig"
 
 endmenu
 

drivers/media/i2c/Makefile

@@ -55,7 +55,6 @@ obj-$(CONFIG_VIDEO_KS0127) += ks0127.o
 obj-$(CONFIG_VIDEO_LM3560) += lm3560.o
 obj-$(CONFIG_VIDEO_LM3646) += lm3646.o
 obj-$(CONFIG_VIDEO_M52790) += m52790.o
-obj-$(CONFIG_VIDEO_M5MOLS) += m5mols/
 obj-$(CONFIG_VIDEO_MAX9271_LIB) += max9271.o
 obj-$(CONFIG_VIDEO_MAX9286) += max9286.o
 obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o

drivers/media/i2c/m5mols/Kconfig

-# SPDX-License-Identifier: GPL-2.0-only
-config VIDEO_M5MOLS
-	tristate "Fujitsu M-5MOLS 8MP sensor support"
-	depends on I2C && VIDEO_DEV
-	select MEDIA_CONTROLLER
-	select VIDEO_V4L2_SUBDEV_API
-	help
-	  This driver supports Fujitsu M-5MOLS camera sensor with ISP

drivers/media/i2c/m5mols/Makefile

-# SPDX-License-Identifier: GPL-2.0-only
-m5mols-objs	:= m5mols_core.o m5mols_controls.o m5mols_capture.o
-
-obj-$(CONFIG_VIDEO_M5MOLS)		+= m5mols.o

drivers/media/i2c/m5mols/m5mols_capture.c

-// SPDX-License-Identifier: GPL-2.0-or-later
-
-/*
- * The Capture code for Fujitsu M-5MOLS ISP
- *
- * Copyright (C) 2011 Samsung Electronics Co., Ltd.
- * Author: HeungJun Kim <riverful.kim@samsung.com>
- *
- * Copyright (C) 2009 Samsung Electronics Co., Ltd.
- * Author: Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.com>
- */
-
-#include <linux/i2c.h>
-#include <linux/slab.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/regulator/consumer.h>
-#include <linux/videodev2.h>
-#include <media/v4l2-ctrls.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-subdev.h>
-#include <media/i2c/m5mols.h>
-#include <media/drv-intf/exynos-fimc.h>
-
-#include "m5mols.h"
-#include "m5mols_reg.h"
-
-/**
- * m5mols_read_rational - I2C read of a rational number
- * @sd: sub-device, as pointed by struct v4l2_subdev
- * @addr_num: numerator register
- * @addr_den: denominator register
- * @val: place to store the division result
- *
- * Read numerator and denominator from registers @addr_num and @addr_den
- * respectively and return the division result in @val.
- */
-static int m5mols_read_rational(struct v4l2_subdev *sd, u32 addr_num,
-				u32 addr_den, u32 *val)
-{
-	u32 num, den;
-
-	int ret = m5mols_read_u32(sd, addr_num, &num);
-	if (!ret)
-		ret = m5mols_read_u32(sd, addr_den, &den);
-	if (ret)
-		return ret;
-	*val = den == 0 ? 0 : num / den;
-	return ret;
-}
-
-/**
- * m5mols_capture_info - Gather captured image information
- * @info: M-5MOLS driver data structure
- *
- * For now it gathers only EXIF information and file size.
- */
-static int m5mols_capture_info(struct m5mols_info *info)
-{
-	struct m5mols_exif *exif = &info->cap.exif;
-	struct v4l2_subdev *sd = &info->sd;
-	int ret;
-
-	ret = m5mols_read_rational(sd, EXIF_INFO_EXPTIME_NU,
-				   EXIF_INFO_EXPTIME_DE, &exif->exposure_time);
-	if (ret)
-		return ret;
-	ret = m5mols_read_rational(sd, EXIF_INFO_TV_NU, EXIF_INFO_TV_DE,
-				   &exif->shutter_speed);
-	if (ret)
-		return ret;
-	ret = m5mols_read_rational(sd, EXIF_INFO_AV_NU, EXIF_INFO_AV_DE,
-				   &exif->aperture);
-	if (ret)
-		return ret;
-	ret = m5mols_read_rational(sd, EXIF_INFO_BV_NU, EXIF_INFO_BV_DE,
-				   &exif->brightness);
-	if (ret)
-		return ret;
-	ret = m5mols_read_rational(sd, EXIF_INFO_EBV_NU, EXIF_INFO_EBV_DE,
-				   &exif->exposure_bias);
-	if (ret)
-		return ret;
-
-	ret = m5mols_read_u16(sd, EXIF_INFO_ISO, &exif->iso_speed);
-	if (!ret)
-		ret = m5mols_read_u16(sd, EXIF_INFO_FLASH, &exif->flash);
-	if (!ret)
-		ret = m5mols_read_u16(sd, EXIF_INFO_SDR, &exif->sdr);
-	if (!ret)
-		ret = m5mols_read_u16(sd, EXIF_INFO_QVAL, &exif->qval);
-	if (ret)
-		return ret;
-
-	if (!ret)
-		ret = m5mols_read_u32(sd, CAPC_IMAGE_SIZE, &info->cap.main);
-	if (!ret)
-		ret = m5mols_read_u32(sd, CAPC_THUMB_SIZE, &info->cap.thumb);
-	if (!ret)
-		info->cap.total = info->cap.main + info->cap.thumb;
-
-	return ret;
-}
-
-int m5mols_start_capture(struct m5mols_info *info)
-{
-	unsigned int framesize = info->cap.buf_size - M5MOLS_JPEG_TAGS_SIZE;
-	struct v4l2_subdev *sd = &info->sd;
-	int ret;
-
-	/*
-	 * Synchronize the controls, set the capture frame resolution and color
-	 * format. The frame capture is initiated during switching from Monitor
-	 * to Capture mode.
-	 */
-	ret = m5mols_set_mode(info, REG_MONITOR);
-	if (!ret)
-		ret = m5mols_restore_controls(info);
-	if (!ret)
-		ret = m5mols_write(sd, CAPP_YUVOUT_MAIN, REG_JPEG);
-	if (!ret)
-		ret = m5mols_write(sd, CAPP_MAIN_IMAGE_SIZE, info->resolution);
-	if (!ret)
-		ret = m5mols_write(sd, CAPP_JPEG_SIZE_MAX, framesize);
-	if (!ret)
-		ret = m5mols_set_mode(info, REG_CAPTURE);
-	if (!ret)
-		/* Wait until a frame is captured to ISP internal memory */
-		ret = m5mols_wait_interrupt(sd, REG_INT_CAPTURE, 2000);
-	if (ret)
-		return ret;
-
-	/*
-	 * Initiate the captured data transfer to a MIPI-CSI receiver.
-	 */
-	ret = m5mols_write(sd, CAPC_SEL_FRAME, 1);
-	if (!ret)
-		ret = m5mols_write(sd, CAPC_START, REG_CAP_START_MAIN);
-	if (!ret) {
-		bool captured = false;
-		unsigned int size;
-
-		/* Wait for the capture completion interrupt */
-		ret = m5mols_wait_interrupt(sd, REG_INT_CAPTURE, 2000);
-		if (!ret) {
-			captured = true;
-			ret = m5mols_capture_info(info);
-		}
-		size = captured ? info->cap.main : 0;
-		v4l2_dbg(1, m5mols_debug, sd, "%s: size: %d, thumb.: %d B\n",
-			 __func__, size, info->cap.thumb);
-
-		v4l2_subdev_notify(sd, S5P_FIMC_TX_END_NOTIFY, &size);
-	}
-
-	return ret;
-}

include/media/i2c/m5mols.h

-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Driver header for M-5MOLS 8M Pixel camera sensor with ISP
- *
- * Copyright (C) 2011 Samsung Electronics Co., Ltd.
- * Author: HeungJun Kim <riverful.kim@samsung.com>
- *
- * Copyright (C) 2009 Samsung Electronics Co., Ltd.
- * Author: Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.com>
- */
-
-#ifndef MEDIA_M5MOLS_H
-#define MEDIA_M5MOLS_H
-
-/**
- * struct m5mols_platform_data - platform data for M-5MOLS driver
- * @set_power:	an additional callback to the board setup code
- *		to be called after enabling and before disabling
- *		the sensor's supply regulators
- */
-struct m5mols_platform_data {
-	int (*set_power)(struct device *dev, int on);
-};
-
-#endif	/* MEDIA_M5MOLS_H */