[PATCH 11/14] ARM: s3c: crag6410: switch keypad device to software properties

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

Switch the keypad device to use software properties to describe the
keypad. This will allow dropping support for platform data from the
samsung-keypad driver.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 arch/arm/mach-s3c/Kconfig                |  5 ---
 arch/arm/mach-s3c/Kconfig.s3c64xx        |  1 -
 arch/arm/mach-s3c/Makefile.s3c64xx       |  1 -
 arch/arm/mach-s3c/devs.c                 | 27 ------------
 arch/arm/mach-s3c/devs.h                 |  1 -
 arch/arm/mach-s3c/keypad.h               | 27 ------------
 arch/arm/mach-s3c/mach-crag6410.c        | 56 ++++++++++++++++++------
 arch/arm/mach-s3c/setup-keypad-s3c64xx.c | 20 ---------
 8 files changed, 42 insertions(+), 96 deletions(-)
 delete mode 100644 arch/arm/mach-s3c/keypad.h
 delete mode 100644 arch/arm/mach-s3c/setup-keypad-s3c64xx.c

diff --git a/arch/arm/mach-s3c/Kconfig b/arch/arm/mach-s3c/Kconfig
index b3656109f1f7..2e77bb4f3a8c 100644
--- a/arch/arm/mach-s3c/Kconfig
+++ b/arch/arm/mach-s3c/Kconfig
@@ -111,11 +111,6 @@ config S3C64XX_DEV_SPI0
 	  Compile in platform device definitions for S3C64XX's type
 	  SPI controller 0
 
-config SAMSUNG_DEV_KEYPAD
-	bool
-	help
-	  Compile in platform device definitions for keypad
-
 config SAMSUNG_DEV_PWM
 	bool
 	help
diff --git a/arch/arm/mach-s3c/Kconfig.s3c64xx b/arch/arm/mach-s3c/Kconfig.s3c64xx
index 8f40af063ad6..cc1257fbf642 100644
--- a/arch/arm/mach-s3c/Kconfig.s3c64xx
+++ b/arch/arm/mach-s3c/Kconfig.s3c64xx
@@ -116,7 +116,6 @@ config MACH_WLF_CRAGG_6410
 	select S3C_DEV_I2C1
 	select S3C_DEV_USB_HOST
 	select S3C_DEV_USB_HSOTG
-	select SAMSUNG_DEV_KEYPAD
 	select SAMSUNG_DEV_PWM
 	help
 	  Machine support for the Wolfson Cragganmore S3C6410 variant.
diff --git a/arch/arm/mach-s3c/Makefile.s3c64xx b/arch/arm/mach-s3c/Makefile.s3c64xx
index 61287ad2ea42..1686b1f344f8 100644
--- a/arch/arm/mach-s3c/Makefile.s3c64xx
+++ b/arch/arm/mach-s3c/Makefile.s3c64xx
@@ -32,7 +32,6 @@ obj-y				+= dev-audio-s3c64xx.o
 obj-$(CONFIG_S3C64XX_SETUP_FB_24BPP)	+= setup-fb-24bpp-s3c64xx.o
 obj-$(CONFIG_S3C64XX_SETUP_I2C0)	+= setup-i2c0-s3c64xx.o
 obj-$(CONFIG_S3C64XX_SETUP_I2C1)	+= setup-i2c1-s3c64xx.o
-obj-$(CONFIG_S3C64XX_SETUP_KEYPAD)	+= setup-keypad-s3c64xx.o
 obj-$(CONFIG_S3C64XX_SETUP_SDHCI_GPIO)	+= setup-sdhci-gpio-s3c64xx.o
 obj-$(CONFIG_S3C64XX_SETUP_SPI)		+= setup-spi-s3c64xx.o
 obj-$(CONFIG_S3C64XX_SETUP_USB_PHY) += setup-usb-phy-s3c64xx.o
diff --git a/arch/arm/mach-s3c/devs.c b/arch/arm/mach-s3c/devs.c
index 8c26d592d2a3..31827cfc5700 100644
--- a/arch/arm/mach-s3c/devs.c
+++ b/arch/arm/mach-s3c/devs.c
@@ -40,7 +40,6 @@
 #include "devs.h"
 #include "fb.h"
 #include <linux/platform_data/i2c-s3c2410.h>
-#include "keypad.h"
 #include "pwm-core.h"
 #include "sdhci.h"
 #include "usb-phy.h"
@@ -266,32 +265,6 @@ void __init s3c_i2c1_set_platdata(struct s3c2410_platform_i2c *pd)
 }
 #endif /* CONFIG_S3C_DEV_I2C1 */
 
-/* KEYPAD */
-
-#ifdef CONFIG_SAMSUNG_DEV_KEYPAD
-static struct resource samsung_keypad_resources[] = {
-	[0] = DEFINE_RES_MEM(SAMSUNG_PA_KEYPAD, SZ_32),
-	[1] = DEFINE_RES_IRQ(IRQ_KEYPAD),
-};
-
-struct platform_device samsung_device_keypad = {
-	.name		= "samsung-keypad",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(samsung_keypad_resources),
-	.resource	= samsung_keypad_resources,
-};
-
-void __init samsung_keypad_set_platdata(struct samsung_keypad_platdata *pd)
-{
-	struct samsung_keypad_platdata *npd;
-
-	npd = s3c_set_platdata(pd, sizeof(*npd), &samsung_device_keypad);
-
-	if (!npd->cfg_gpio)
-		npd->cfg_gpio = samsung_keypad_cfg_gpio;
-}
-#endif /* CONFIG_SAMSUNG_DEV_KEYPAD */
-
 /* PWM Timer */
 
 #ifdef CONFIG_SAMSUNG_DEV_PWM
diff --git a/arch/arm/mach-s3c/devs.h b/arch/arm/mach-s3c/devs.h
index 21c00786c264..2737990063b1 100644
--- a/arch/arm/mach-s3c/devs.h
+++ b/arch/arm/mach-s3c/devs.h
@@ -39,7 +39,6 @@ extern struct platform_device s3c_device_i2c1;
 extern struct platform_device s3c_device_ohci;
 extern struct platform_device s3c_device_usb_hsotg;
 
-extern struct platform_device samsung_device_keypad;
 extern struct platform_device samsung_device_pwm;
 
 /**
diff --git a/arch/arm/mach-s3c/keypad.h b/arch/arm/mach-s3c/keypad.h
deleted file mode 100644
index 9754b9a29945..000000000000
--- a/arch/arm/mach-s3c/keypad.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Samsung Platform - Keypad platform data definitions
- *
- * Copyright (C) 2010 Samsung Electronics Co.Ltd
- * Author: Joonyoung Shim <jy0922.shim@samsung.com>
- */
-
-#ifndef __PLAT_SAMSUNG_KEYPAD_H
-#define __PLAT_SAMSUNG_KEYPAD_H
-
-#include <linux/input/samsung-keypad.h>
-
-/**
- * samsung_keypad_set_platdata - Set platform data for Samsung Keypad device.
- * @pd: Platform data to register to device.
- *
- * Register the given platform data for use with Samsung Keypad device.
- * The call will copy the platform data, so the board definitions can
- * make the structure itself __initdata.
- */
-extern void samsung_keypad_set_platdata(struct samsung_keypad_platdata *pd);
-
-/* defined by architecture to configure gpio. */
-extern void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols);
-
-#endif /* __PLAT_SAMSUNG_KEYPAD_H */
diff --git a/arch/arm/mach-s3c/mach-crag6410.c b/arch/arm/mach-s3c/mach-crag6410.c
index e5df2cb51ab2..16b6ef312aaf 100644
--- a/arch/arm/mach-s3c/mach-crag6410.c
+++ b/arch/arm/mach-s3c/mach-crag6410.c
@@ -15,6 +15,7 @@
 #include <linux/io.h>
 #include <linux/init.h>
 #include <linux/input-event-codes.h>
+#include <linux/input/matrix_keypad.h>
 #include <linux/gpio.h>
 #include <linux/gpio/machine.h>
 #include <linux/leds.h>
@@ -53,7 +54,6 @@
 #include "gpio-cfg.h"
 #include <linux/platform_data/spi-s3c64xx.h>
 
-#include "keypad.h"
 #include "devs.h"
 #include "cpu.h"
 #include <linux/platform_data/i2c-s3c2410.h>
@@ -176,7 +176,7 @@ static struct s3c_fb_platdata crag6410_lcd_pdata = {
 
 /* 2x6 keypad */
 
-static uint32_t crag6410_keymap[] = {
+static const uint32_t crag6410_keymap[] __initconst = {
 	/* KEY(row, col, keycode) */
 	KEY(0, 0, KEY_VOLUMEUP),
 	KEY(0, 1, KEY_HOME),
@@ -192,17 +192,41 @@ static uint32_t crag6410_keymap[] = {
 	KEY(1, 5, KEY_CAMERA),
 };
 
-static struct matrix_keymap_data crag6410_keymap_data = {
-	.keymap		= crag6410_keymap,
-	.keymap_size	= ARRAY_SIZE(crag6410_keymap),
+static const struct property_entry crag6410_keypad_props[] __initconst = {
+	PROPERTY_ENTRY_U32("keypad,num-columns", 6),
+	PROPERTY_ENTRY_U32("keypad,num-rows", 2),
+	PROPERTY_ENTRY_U32_ARRAY("linux,keymap", crag6410_keymap),
+	{ }
 };
 
-static struct samsung_keypad_platdata crag6410_keypad_data = {
-	.keymap_data	= &crag6410_keymap_data,
-	.rows		= 2,
-	.cols		= 6,
+static const struct resource crag6410_keypad_resources[] __initconst = {
+	[0] = DEFINE_RES_MEM(SAMSUNG_PA_KEYPAD, SZ_32),
+	[1] = DEFINE_RES_IRQ(IRQ_KEYPAD),
 };
 
+static const struct platform_device_info crag6410_keypad_info __initconst = {
+	.name		= "samsung-keypad",
+	.id		= PLATFORM_DEVID_NONE,
+	.res		= crag6410_keypad_resources,
+	.num_res	= ARRAY_SIZE(crag6410_keypad_resources),
+	.properties	= crag6410_keypad_props,
+};
+
+static void __init crag6410_setup_keypad(void)
+{
+	struct platform_device *pd;
+
+	/* Set all the necessary GPK pins to special-function 3: KP_ROW[x] */
+	s3c_gpio_cfgrange_nopull(S3C64XX_GPK(8), 2, S3C_GPIO_SFN(3));
+
+	/* Set all the necessary GPL pins to special-function 3: KP_COL[x] */
+	s3c_gpio_cfgrange_nopull(S3C64XX_GPL(0), 6, S3C_GPIO_SFN(3));
+
+	pd = platform_device_register_full(&crag6410_keypad_info);
+	if (IS_ERR(pd))
+		pr_err("failed to instantiate keypad device");
+}
+
 static struct gpio_keys_button crag6410_gpio_keys[] = {
 	[0] = {
 		.code	= KEY_SUSPEND,
@@ -358,7 +382,7 @@ static struct platform_device wallvdd_device = {
 	},
 };
 
-static struct platform_device *crag6410_devices[] __initdata = {
+static struct platform_device *crag6410_devs0[] __initdata = {
 	&s3c_device_hsmmc0,
 	&s3c_device_hsmmc2,
 	&s3c_device_i2c0,
@@ -369,8 +393,10 @@ static struct platform_device *crag6410_devices[] __initdata = {
 	&samsung_device_pwm,
 	&s3c64xx_device_iis0,
 	&s3c64xx_device_iis1,
-	&samsung_device_keypad,
 	&crag6410_gpio_keydev,
+};
+
+static struct platform_device *crag6410_devs1[] __initdata = {
 	&crag6410_dm9k_device,
 	&s3c64xx_device_spi0,
 	&crag6410_mmgpio,
@@ -864,13 +890,15 @@ static void __init crag6410_machine_init(void)
 	gpiod_add_lookup_table(&crag_wm1250_ev1_gpiod_table);
 	i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
 
-	samsung_keypad_set_platdata(&crag6410_keypad_data);
-
 	gpiod_add_lookup_table(&crag_spi0_gpiod_table);
 	s3c64xx_spi0_set_platdata(0, 2);
 
 	pwm_add_table(crag6410_pwm_lookup, ARRAY_SIZE(crag6410_pwm_lookup));
-	platform_add_devices(crag6410_devices, ARRAY_SIZE(crag6410_devices));
+	platform_add_devices(crag6410_devs0, ARRAY_SIZE(crag6410_devs0));
+
+	crag6410_setup_keypad();
+
+	platform_add_devices(crag6410_devs1, ARRAY_SIZE(crag6410_devs1));
 
 	gpio_led_register_device(-1, &gpio_leds_pdata);
 
diff --git a/arch/arm/mach-s3c/setup-keypad-s3c64xx.c b/arch/arm/mach-s3c/setup-keypad-s3c64xx.c
deleted file mode 100644
index 8463ad37c6ab..000000000000
--- a/arch/arm/mach-s3c/setup-keypad-s3c64xx.c
+++ /dev/null
@@ -1,20 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-//
-// Copyright (c) 2010 Samsung Electronics Co., Ltd.
-//		http://www.samsung.com/
-//
-// GPIO configuration for S3C64XX KeyPad device
-
-#include <linux/gpio.h>
-#include "gpio-cfg.h"
-#include "keypad.h"
-#include "gpio-samsung.h"
-
-void samsung_keypad_cfg_gpio(unsigned int rows, unsigned int cols)
-{
-	/* Set all the necessary GPK pins to special-function 3: KP_ROW[x] */
-	s3c_gpio_cfgrange_nopull(S3C64XX_GPK(8), rows, S3C_GPIO_SFN(3));
-
-	/* Set all the necessary GPL pins to special-function 3: KP_COL[x] */
-	s3c_gpio_cfgrange_nopull(S3C64XX_GPL(0), cols, S3C_GPIO_SFN(3));
-}
-- 
2.46.0.184.g6999bdac58-goog