media: atomisp: Drop the atomisp custom lm3554 flash driver

Drop the atomisp custom lm3554 flash driver, support for flash drivers
using the custom atomisp flash interface is going to be removed from
the atomisp driver.

If flash supports for the lm3554 turns out to be necessary on some
atomisp devices in the future then this should be re-implemented
using the new include/linux/led-class-flash.h APIs.

The atomisp specific lm3554 driver could still be usable as a reference
for how to use / driver the lm3554 for a future re-implementation
using standardized APIs, but for that it can be retrieved from
the git history.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/staging/media/atomisp/i2c/Kconfig

@@ -56,18 +56,3 @@ config VIDEO_ATOMISP_GC0310
 	help
 	  This is a Video4Linux2 sensor-level driver for the Galaxycore
 	  GC0310 0.3MP sensor.
-
-#
-# Kconfig for flash drivers
-#
-
-config VIDEO_ATOMISP_LM3554
-       tristate "LM3554 flash light driver"
-	depends on ACPI
-       depends on VIDEO_DEV && I2C
-	help
-	 This is a Video4Linux2 sub-dev driver for the LM3554
-	 flash light driver.
-
-	 To compile this driver as a module, choose M here: the
-	 module will be called lm3554

drivers/staging/media/atomisp/i2c/Makefile

@@ -9,8 +9,3 @@ obj-$(CONFIG_VIDEO_ATOMISP_OV2722)     += atomisp-ov2722.o
 obj-$(CONFIG_VIDEO_ATOMISP_GC0310)     += atomisp-gc0310.o
 
 obj-$(CONFIG_VIDEO_ATOMISP_MSRLIST_HELPER) += atomisp-libmsrlisthelper.o
-
-# Makefile for flash drivers
-#
-
-obj-$(CONFIG_VIDEO_ATOMISP_LM3554) += atomisp-lm3554.o

drivers/staging/media/atomisp/include/media/lm3554.h

-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * include/media/lm3554.h
- *
- * Copyright (c) 2010-2012 Intel Corporation. All Rights Reserved.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- *
- */
-#ifndef _LM3554_H_
-#define _LM3554_H_
-
-#include <linux/gpio/consumer.h>
-#include <linux/videodev2.h>
-#include <media/v4l2-subdev.h>
-
-#define LM3554_ID      3554
-
-#define	v4l2_queryctrl_entry_integer(_id, _name,\
-		_minimum, _maximum, _step, \
-		_default_value, _flags)	\
-	{\
-		.id = (_id), \
-		.type = V4L2_CTRL_TYPE_INTEGER, \
-		.name = _name, \
-		.minimum = (_minimum), \
-		.maximum = (_maximum), \
-		.step = (_step), \
-		.default_value = (_default_value),\
-		.flags = (_flags),\
-	}
-#define	v4l2_queryctrl_entry_boolean(_id, _name,\
-		_default_value, _flags)	\
-	{\
-		.id = (_id), \
-		.type = V4L2_CTRL_TYPE_BOOLEAN, \
-		.name = _name, \
-		.minimum = 0, \
-		.maximum = 1, \
-		.step = 1, \
-		.default_value = (_default_value),\
-		.flags = (_flags),\
-	}
-
-#define	s_ctrl_id_entry_integer(_id, _name, \
-		_minimum, _maximum, _step, \
-		_default_value, _flags, \
-		_s_ctrl, _g_ctrl)	\
-	{\
-		.qc = v4l2_queryctrl_entry_integer(_id, _name,\
-				_minimum, _maximum, _step,\
-				_default_value, _flags), \
-		.s_ctrl = _s_ctrl, \
-		.g_ctrl = _g_ctrl, \
-	}
-
-#define	s_ctrl_id_entry_boolean(_id, _name, \
-		_default_value, _flags, \
-		_s_ctrl, _g_ctrl)	\
-	{\
-		.qc = v4l2_queryctrl_entry_boolean(_id, _name,\
-				_default_value, _flags), \
-		.s_ctrl = _s_ctrl, \
-		.g_ctrl = _g_ctrl, \
-	}
-
-/* Value settings for Flash Time-out Duration*/
-#define LM3554_DEFAULT_TIMEOUT          512U
-#define LM3554_MIN_TIMEOUT              32U
-#define LM3554_MAX_TIMEOUT              1024U
-#define LM3554_TIMEOUT_STEPSIZE         32U
-
-/* Flash modes */
-#define LM3554_MODE_SHUTDOWN            0
-#define LM3554_MODE_INDICATOR           1
-#define LM3554_MODE_TORCH               2
-#define LM3554_MODE_FLASH               3
-
-/* timer delay time */
-#define LM3554_TIMER_DELAY		5
-
-/* Percentage <-> value macros */
-#define LM3554_MIN_PERCENT                   0U
-#define LM3554_MAX_PERCENT                   100U
-#define LM3554_CLAMP_PERCENTAGE(val) \
-	clamp(val, LM3554_MIN_PERCENT, LM3554_MAX_PERCENT)
-
-#define LM3554_VALUE_TO_PERCENT(v, step)     (((((unsigned long)(v)) * (step)) + 50) / 100)
-#define LM3554_PERCENT_TO_VALUE(p, step)     (((((unsigned long)(p)) * 100) + (step >> 1)) / (step))
-
-/* Product specific limits
- * TODO: get these from platform data */
-#define LM3554_FLASH_MAX_LVL   0x0F /* 1191mA */
-
-/* Flash brightness, input is percentage, output is [0..15] */
-#define LM3554_FLASH_STEP	\
-	((100ul * (LM3554_MAX_PERCENT) + ((LM3554_FLASH_MAX_LVL) >> 1)) / ((LM3554_FLASH_MAX_LVL)))
-#define LM3554_FLASH_DEFAULT_BRIGHTNESS \
-	LM3554_VALUE_TO_PERCENT(13, LM3554_FLASH_STEP)
-
-/* Torch brightness, input is percentage, output is [0..7] */
-#define LM3554_TORCH_STEP                    1250
-#define LM3554_TORCH_DEFAULT_BRIGHTNESS \
-	LM3554_VALUE_TO_PERCENT(2, LM3554_TORCH_STEP)
-
-/* Indicator brightness, input is percentage, output is [0..3] */
-#define LM3554_INDICATOR_STEP                2500
-#define LM3554_INDICATOR_DEFAULT_BRIGHTNESS \
-	LM3554_VALUE_TO_PERCENT(1, LM3554_INDICATOR_STEP)
-
-/*
- * lm3554_platform_data - Flash controller platform data
- */
-struct lm3554_platform_data {
-	struct gpio_desc *gpio_torch;
-	struct gpio_desc *gpio_strobe;
-	struct gpio_desc *gpio_reset;
-
-	unsigned int current_limit;
-	unsigned int envm_tx2;
-	unsigned int tx2_polarity;
-};
-
-#endif /* _LM3554_H_ */