[media] exynos4-is: Remove support for non-dt platforms

All platforms supported by this driver are going to get device tree
support in this kernel release so remove code that would have been
actually not used any more.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Documentation/video4linux/fimc.txt

@@ -140,39 +140,9 @@ You can either grep through the kernel log to find relevant information, i.e.
 or retrieve the information from /dev/media? with help of the media-ctl tool:
 # media-ctl -p
 
-6. Platform support
-===================
-
-The machine code (arch/arm/plat-samsung and arch/arm/mach-*) must select
-following options:
-
-CONFIG_S5P_DEV_FIMC0       mandatory
-CONFIG_S5P_DEV_FIMC1  \
-CONFIG_S5P_DEV_FIMC2  |    optional
-CONFIG_S5P_DEV_FIMC3  |
-CONFIG_S5P_SETUP_FIMC /
-CONFIG_S5P_DEV_CSIS0  \    optional for MIPI-CSI interface
-CONFIG_S5P_DEV_CSIS1  /
-
-Except that, relevant s5p_device_fimc? should be registered in the machine code
-in addition to a "s5p-fimc-md" platform device to which the media device driver
-is bound.  The "s5p-fimc-md" device instance is required even if only mem-to-mem
-operation is used.
-
-The description of sensor(s) attached to FIMC/MIPI-CSIS camera inputs should be
-passed as the "s5p-fimc-md" device platform_data.  The platform data structure
-is defined in file include/media/s5p_fimc.h.
-
 7. Build
 ========
 
-This driver depends on following config options:
-PLAT_S5P,
-PM_RUNTIME,
-I2C,
-REGULATOR,
-VIDEO_V4L2_SUBDEV_API,
-
 If the driver is built as a loadable kernel module (CONFIG_VIDEO_SAMSUNG_S5P_FIMC=m)
 two modules are created (in addition to the core v4l2 modules): s5p-fimc.ko and
 optional s5p-csis.ko (MIPI-CSI receiver subdev).

MAINTAINERS

@@ -7654,7 +7654,6 @@ L:	linux-media@vger.kernel.org
 Q:	https://patchwork.linuxtv.org/project/linux-media/list/
 S:	Supported
 F:	drivers/media/platform/exynos4-is/
-F:	include/media/s5p_fimc.h
 
 SAMSUNG S3C24XX/S3C64XX SOC SERIES CAMIF DRIVER
 M:	Sylwester Nawrocki <sylvester.nawrocki@gmail.com>

drivers/media/platform/exynos4-is/Kconfig

@@ -3,6 +3,7 @@ config VIDEO_SAMSUNG_EXYNOS4_IS
 	bool "Samsung S5P/EXYNOS4 SoC series Camera Subsystem driver"
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
 	depends on (PLAT_S5P || ARCH_EXYNOS)
+	depends on OF && COMMON_CLK
 	help
 	  Say Y here to enable camera host interface devices for
 	  Samsung S5P and EXYNOS SoC series.
@@ -17,7 +18,7 @@ config VIDEO_S5P_FIMC
 	depends on I2C
 	select VIDEOBUF2_DMA_CONTIG
 	select V4L2_MEM2MEM_DEV
-	select MFD_SYSCON if OF
+	select MFD_SYSCON
 	select VIDEO_EXYNOS4_IS_COMMON
 	help
 	  This is a V4L2 driver for Samsung S5P and EXYNOS4 SoC camera host

drivers/media/platform/exynos4-is/common.c

@@ -10,7 +10,7 @@
  */
 
 #include <linux/module.h>
-#include <media/s5p_fimc.h>
+#include <media/exynos-fimc.h>
 #include "common.h"
 
 /* Called with the media graph mutex held or entity->stream_count > 0. */

drivers/media/platform/exynos4-is/fimc-core.h

@@ -27,7 +27,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-mem2mem.h>
 #include <media/v4l2-mediabus.h>
-#include <media/s5p_fimc.h>
+#include <media/exynos-fimc.h>
 
 #define dbg(fmt, args...) \
 	pr_debug("%s:%d: " fmt "\n", __func__, __LINE__, ##args)

drivers/media/platform/exynos4-is/fimc-isp-video.c

@@ -30,7 +30,7 @@
 #include <media/v4l2-ioctl.h>
 #include <media/videobuf2-core.h>
 #include <media/videobuf2-dma-contig.h>
-#include <media/s5p_fimc.h>
+#include <media/exynos-fimc.h>
 
 #include "common.h"
 #include "media-dev.h"

drivers/media/platform/exynos4-is/fimc-isp.h

@@ -24,7 +24,7 @@
 #include <media/videobuf2-core.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-mediabus.h>
-#include <media/s5p_fimc.h>
+#include <media/exynos-fimc.h>
 
 extern int fimc_isp_debug;
 

drivers/media/platform/exynos4-is/fimc-lite-reg.c

@@ -12,7 +12,7 @@
 #include <linux/bitops.h>
 #include <linux/delay.h>
 #include <linux/io.h>
-#include <media/s5p_fimc.h>
+#include <media/exynos-fimc.h>
 
 #include "fimc-lite-reg.h"
 #include "fimc-lite.h"

drivers/media/platform/exynos4-is/fimc-lite.c

@@ -30,7 +30,7 @@
 #include <media/v4l2-mem2mem.h>
 #include <media/videobuf2-core.h>
 #include <media/videobuf2-dma-contig.h>
-#include <media/s5p_fimc.h>
+#include <media/exynos-fimc.h>
 
 #include "common.h"
 #include "fimc-core.h"

drivers/media/platform/exynos4-is/fimc-lite.h

@@ -23,7 +23,7 @@
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-mediabus.h>
-#include <media/s5p_fimc.h>
+#include <media/exynos-fimc.h>
 
 #define FIMC_LITE_DRV_NAME	"exynos-fimc-lite"
 #define FLITE_CLK_NAME		"flite"

drivers/media/platform/exynos4-is/fimc-reg.c

@@ -13,7 +13,7 @@
 #include <linux/io.h>
 #include <linux/regmap.h>
 
-#include <media/s5p_fimc.h>
+#include <media/exynos-fimc.h>
 #include "media-dev.h"
 
 #include "fimc-reg.h"

drivers/media/platform/exynos4-is/media-dev.h

@@ -19,7 +19,7 @@
 #include <media/media-entity.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-subdev.h>
-#include <media/s5p_fimc.h>
+#include <media/exynos-fimc.h>
 
 #include "fimc-core.h"
 #include "fimc-lite.h"
@@ -94,9 +94,7 @@ struct fimc_sensor_info {
 };
 
 struct cam_clk {
-#ifdef CONFIG_COMMON_CLK
 	struct clk_hw hw;
-#endif
 	struct fimc_md *fmd;
 };
 #define to_cam_clk(_hw) container_of(_hw, struct cam_clk, hw)
@@ -144,9 +142,7 @@ struct fimc_md {
 
 	struct cam_clk_provider {
 		struct clk *clks[FIMC_MAX_CAMCLKS];
-#ifdef CONFIG_COMMON_CLK
 		struct clk_onecell_data clk_data;
-#endif
 		struct device_node *of_node;
 		struct cam_clk camclk[FIMC_MAX_CAMCLKS];
 		int num_clocks;

drivers/media/platform/exynos4-is/mipi-csis.c

@@ -22,14 +22,13 @@
 #include <linux/of.h>
 #include <linux/of_graph.h>
 #include <linux/phy/phy.h>
-#include <linux/platform_data/mipi-csis.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/videodev2.h>
-#include <media/s5p_fimc.h>
+#include <media/exynos-fimc.h>
 #include <media/v4l2-of.h>
 #include <media/v4l2-subdev.h>
 
@@ -730,26 +729,6 @@ static irqreturn_t s5pcsis_irq_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int s5pcsis_get_platform_data(struct platform_device *pdev,
-				     struct csis_state *state)
-{
-	struct s5p_platform_mipi_csis *pdata = pdev->dev.platform_data;
-
-	if (pdata == NULL) {
-		dev_err(&pdev->dev, "Platform data not specified\n");
-		return -EINVAL;
-	}
-
-	state->clk_frequency = pdata->clk_rate;
-	state->num_lanes = pdata->lanes;
-	state->hs_settle = pdata->hs_settle;
-	state->index = max(0, pdev->id);
-	state->max_num_lanes = state->index ? CSIS1_MAX_LANES :
-					      CSIS0_MAX_LANES;
-	return 0;
-}
-
-#ifdef CONFIG_OF
 static int s5pcsis_parse_dt(struct platform_device *pdev,
 			    struct csis_state *state)
 {
@@ -787,9 +766,6 @@ static int s5pcsis_parse_dt(struct platform_device *pdev,
 
 	return 0;
 }
-#else
-#define s5pcsis_parse_dt(pdev, state) (-ENOSYS)
-#endif
 
 static int s5pcsis_pm_resume(struct device *dev, bool runtime);
 static const struct of_device_id s5pcsis_of_match[];
@@ -812,19 +788,14 @@ static int s5pcsis_probe(struct platform_device *pdev)
 	spin_lock_init(&state->slock);
 	state->pdev = pdev;
 
-	if (dev->of_node) {
-		of_id = of_match_node(s5pcsis_of_match, dev->of_node);
-		if (WARN_ON(of_id == NULL))
-			return -EINVAL;
-
-		drv_data = of_id->data;
-		state->interrupt_mask = drv_data->interrupt_mask;
+	of_id = of_match_node(s5pcsis_of_match, dev->of_node);
+	if (WARN_ON(of_id == NULL))
+		return -EINVAL;
 
-		ret = s5pcsis_parse_dt(pdev, state);
-	} else {
-		ret = s5pcsis_get_platform_data(pdev, state);
-	}
+	drv_data = of_id->data;
+	state->interrupt_mask = drv_data->interrupt_mask;
 
+	ret = s5pcsis_parse_dt(pdev, state);
 	if (ret < 0)
 		return ret;
 

include/linux/platform_data/mipi-csis.h

-/*
- * Copyright (C) 2010 - 2012 Samsung Electronics Co., Ltd.
- *
- * Samsung S5P/Exynos SoC series MIPI CSIS device support
- *
- * 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 __PLAT_SAMSUNG_MIPI_CSIS_H_
-#define __PLAT_SAMSUNG_MIPI_CSIS_H_ __FILE__
-
-/**
- * struct s5p_platform_mipi_csis - platform data for S5P MIPI-CSIS driver
- * @clk_rate:    bus clock frequency
- * @wclk_source: CSI wrapper clock selection: 0 - bus clock, 1 - ext. SCLK_CAM
- * @lanes:       number of data lanes used
- * @hs_settle:   HS-RX settle time
- */
-struct s5p_platform_mipi_csis {
-	unsigned long clk_rate;
-	u8 wclk_source;
-	u8 lanes;
-	u8 hs_settle;
-};
-
-#endif /* __PLAT_SAMSUNG_MIPI_CSIS_H_ */

include/media/s5p_fimc.h → include/media/exynos-fimc.h

@@ -61,41 +61,20 @@ enum fimc_bus_type {
 #define GRP_ID_FLITE		(1 << 13)
 #define GRP_ID_FIMC_IS		(1 << 14)
 
-struct i2c_board_info;
-
 /**
  * struct fimc_source_info - video source description required for the host
  *			     interface configuration
  *
- * @board_info: pointer to I2C subdevice's board info
- * @clk_frequency: frequency of the clock the host interface provides to sensor
  * @fimc_bus_type: FIMC camera input type
  * @sensor_bus_type: image sensor bus type, MIPI, ITU-R BT.601 etc.
  * @flags: the parallel sensor bus flags defining signals polarity (V4L2_MBUS_*)
- * @i2c_bus_num: i2c control bus id the sensor is attached to
  * @mux_id: FIMC camera interface multiplexer index (separate for MIPI and ITU)
- * @clk_id: index of the SoC peripheral clock for sensors
  */
 struct fimc_source_info {
-	struct i2c_board_info *board_info;
-	unsigned long clk_frequency;
 	enum fimc_bus_type fimc_bus_type;
 	enum fimc_bus_type sensor_bus_type;
 	u16 flags;
-	u16 i2c_bus_num;
 	u16 mux_id;
-	u8 clk_id;
-};
-
-/**
- * struct s5p_platform_fimc - camera host interface platform data
- *
- * @source_info: properties of an image source for the host interface setup
- * @num_clients: the number of attached image sources
- */
-struct s5p_platform_fimc {
-	struct fimc_source_info *source_info;
-	int num_clients;
 };
 
 /*