ARM: omap1: remove osk-mistral add-on board support

As Aaro Koskinen points out, nobody should have this one any more,
and I noticed the code is rather ugly, so let's removed it but
keep the rest of the OSK support that is still used.

Link: https://lore.kernel.org/linux-arm-kernel/20221020193511.GB3019@t60.musicnaut.iki.fi/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: arndb

arch/arm/mach-omap1/Kconfig

@@ -120,14 +120,6 @@ config MACH_OMAP_OSK
 	  TI OMAP 5912 OSK (OMAP Starter Kit) board support. Say Y here
           if you have such a board.
 
-config OMAP_OSK_MISTRAL
-	bool "Mistral QVGA board Support"
-	depends on MACH_OMAP_OSK
-	help
-	  The OSK supports an optional add-on board with a Quarter-VGA
-	  touchscreen, PDA-ish buttons, a resume button, bicolor LED,
-	  and camera connector.  Say Y here if you have this board.
-
 config MACH_OMAP_PALMTE
 	bool "Palm Tungsten E"
 	depends on ARCH_OMAP15XX

arch/arm/mach-omap1/board-osk.c

@@ -339,267 +339,6 @@ static struct omap_usb_config osk_usb_config __initdata = {
 	.pins[0]	= 2,
 };
 
-#ifdef	CONFIG_OMAP_OSK_MISTRAL
-static const struct omap_lcd_config osk_lcd_config __initconst = {
-	.ctrl_name	= "internal",
-};
-#endif
-
-#ifdef	CONFIG_OMAP_OSK_MISTRAL
-
-#include <linux/input.h>
-#include <linux/property.h>
-#include <linux/spi/spi.h>
-#include <linux/spi/ads7846.h>
-
-#include <linux/platform_data/keypad-omap.h>
-
-static const struct property_entry mistral_at24_properties[] = {
-	PROPERTY_ENTRY_U32("pagesize", 16),
-	{ }
-};
-
-static const struct software_node mistral_at24_node = {
-	.properties = mistral_at24_properties,
-};
-
-static struct i2c_board_info __initdata mistral_i2c_board_info[] = {
-	{
-		/* NOTE:  powered from LCD supply */
-		I2C_BOARD_INFO("24c04", 0x50),
-		.swnode = &mistral_at24_node,
-	},
-	/* TODO when driver support is ready:
-	 *  - optionally ov9640 camera sensor at 0x30
-	 */
-};
-
-static const unsigned int osk_keymap[] = {
-	/* KEY(col, row, code) */
-	KEY(0, 0, KEY_F1),		/* SW4 */
-	KEY(3, 0, KEY_UP),		/* (sw2/up) */
-	KEY(1, 1, KEY_LEFTCTRL),	/* SW5 */
-	KEY(2, 1, KEY_LEFT),		/* (sw2/left) */
-	KEY(0, 2, KEY_SPACE),		/* SW3 */
-	KEY(1, 2, KEY_ESC),		/* SW6 */
-	KEY(2, 2, KEY_DOWN),		/* (sw2/down) */
-	KEY(2, 3, KEY_ENTER),		/* (sw2/select) */
-	KEY(3, 3, KEY_RIGHT),		/* (sw2/right) */
-};
-
-static const struct matrix_keymap_data osk_keymap_data = {
-	.keymap		= osk_keymap,
-	.keymap_size	= ARRAY_SIZE(osk_keymap),
-};
-
-static struct omap_kp_platform_data osk_kp_data = {
-	.rows		= 8,
-	.cols		= 8,
-	.keymap_data	= &osk_keymap_data,
-	.delay		= 9,
-};
-
-static struct resource osk5912_kp_resources[] = {
-	[0] = {
-		.start	= INT_KEYBOARD,
-		.end	= INT_KEYBOARD,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device osk5912_kp_device = {
-	.name		= "omap-keypad",
-	.id		= -1,
-	.dev		= {
-		.platform_data = &osk_kp_data,
-	},
-	.num_resources	= ARRAY_SIZE(osk5912_kp_resources),
-	.resource	= osk5912_kp_resources,
-};
-
-static struct omap_backlight_config mistral_bl_data = {
-	.default_intensity	= 0xa0,
-};
-
-static struct platform_device mistral_bl_device = {
-	.name		= "omap-bl",
-	.id		= -1,
-	.dev		= {
-		.platform_data = &mistral_bl_data,
-	},
-};
-
-static struct platform_device osk5912_lcd_device = {
-	.name		= "lcd_osk",
-	.id		= -1,
-};
-
-static const struct gpio_led mistral_gpio_led_pins[] = {
-	{
-		.name		= "mistral:red",
-		.default_trigger = "heartbeat",
-		.gpio		= 3,
-	},
-	{
-		.name		= "mistral:green",
-		.default_trigger = "cpu0",
-		.gpio		= OMAP_MPUIO(4),
-	},
-};
-
-static struct gpio_led_platform_data mistral_gpio_led_data = {
-	.leds		= mistral_gpio_led_pins,
-	.num_leds	= ARRAY_SIZE(mistral_gpio_led_pins),
-};
-
-static struct platform_device mistral_gpio_leds = {
-	.name	= "leds-gpio",
-	.id	= -1,
-	.dev	= {
-		.platform_data = &mistral_gpio_led_data,
-	},
-};
-
-static struct platform_device *mistral_devices[] __initdata = {
-	&osk5912_kp_device,
-	&mistral_bl_device,
-	&osk5912_lcd_device,
-	&mistral_gpio_leds,
-};
-
-static int mistral_get_pendown_state(void)
-{
-	return !gpio_get_value(4);
-}
-
-static const struct ads7846_platform_data mistral_ts_info = {
-	.model			= 7846,
-	.vref_delay_usecs	= 100,	/* internal, no capacitor */
-	.x_plate_ohms		= 419,
-	.y_plate_ohms		= 486,
-	.get_pendown_state	= mistral_get_pendown_state,
-};
-
-static struct spi_board_info __initdata mistral_boardinfo[] = { {
-	/* MicroWire (bus 2) CS0 has an ads7846e */
-	.modalias		= "ads7846",
-	.platform_data		= &mistral_ts_info,
-	.max_speed_hz		= 120000 /* max sample rate at 3V */
-					* 26 /* command + data + overhead */,
-	.bus_num		= 2,
-	.chip_select		= 0,
-} };
-
-static irqreturn_t
-osk_mistral_wake_interrupt(int irq, void *ignored)
-{
-	return IRQ_HANDLED;
-}
-
-static void __init osk_mistral_init(void)
-{
-	/* NOTE:  we could actually tell if there's a Mistral board
-	 * attached, e.g. by trying to read something from the ads7846.
-	 * But this arch_init() code is too early for that, since we
-	 * can't talk to the ads or even the i2c eeprom.
-	 */
-
-	/* parallel camera interface */
-	omap_cfg_reg(J15_1610_CAM_LCLK);
-	omap_cfg_reg(J18_1610_CAM_D7);
-	omap_cfg_reg(J19_1610_CAM_D6);
-	omap_cfg_reg(J14_1610_CAM_D5);
-	omap_cfg_reg(K18_1610_CAM_D4);
-	omap_cfg_reg(K19_1610_CAM_D3);
-	omap_cfg_reg(K15_1610_CAM_D2);
-	omap_cfg_reg(K14_1610_CAM_D1);
-	omap_cfg_reg(L19_1610_CAM_D0);
-	omap_cfg_reg(L18_1610_CAM_VS);
-	omap_cfg_reg(L15_1610_CAM_HS);
-	omap_cfg_reg(M19_1610_CAM_RSTZ);
-	omap_cfg_reg(Y15_1610_CAM_OUTCLK);
-
-	/* serial camera interface */
-	omap_cfg_reg(H19_1610_CAM_EXCLK);
-	omap_cfg_reg(W13_1610_CCP_CLKM);
-	omap_cfg_reg(Y12_1610_CCP_CLKP);
-	/* CCP_DATAM CONFLICTS WITH UART1.TX (and serial console) */
-	/* omap_cfg_reg(Y14_1610_CCP_DATAM); */
-	omap_cfg_reg(W14_1610_CCP_DATAP);
-
-	/* CAM_PWDN */
-	if (gpio_request(11, "cam_pwdn") == 0) {
-		omap_cfg_reg(N20_1610_GPIO11);
-		gpio_direction_output(11, 0);
-	} else
-		pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
-
-
-	/* omap_cfg_reg(P19_1610_GPIO6); */	/* BUSY */
-	gpio_request(6, "ts_busy");
-	gpio_direction_input(6);
-
-	omap_cfg_reg(P20_1610_GPIO4);	/* PENIRQ */
-	gpio_request(4, "ts_int");
-	gpio_direction_input(4);
-	irq_set_irq_type(gpio_to_irq(4), IRQ_TYPE_EDGE_FALLING);
-
-	mistral_boardinfo[0].irq = gpio_to_irq(4);
-	spi_register_board_info(mistral_boardinfo,
-			ARRAY_SIZE(mistral_boardinfo));
-
-	/* the sideways button (SW1) is for use as a "wakeup" button
-	 *
-	 * NOTE:  The Mistral board has the wakeup button (SW1) wired
-	 * to the LCD 3.3V rail, which is powered down during suspend.
-	 * To allow this button to wake up the omap, work around this
-	 * HW bug by rewiring SW1 to use the main 3.3V rail.
-	 */
-	omap_cfg_reg(N15_1610_MPUIO2);
-	if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
-		int ret = 0;
-		int irq = gpio_to_irq(OMAP_MPUIO(2));
-
-		gpio_direction_input(OMAP_MPUIO(2));
-		irq_set_irq_type(irq, IRQ_TYPE_EDGE_RISING);
-		/* share the IRQ in case someone wants to use the
-		 * button for more than wakeup from system sleep.
-		 */
-		ret = request_irq(irq,
-				&osk_mistral_wake_interrupt,
-				IRQF_SHARED, "mistral_wakeup",
-				&osk_mistral_wake_interrupt);
-		if (ret != 0) {
-			gpio_free(OMAP_MPUIO(2));
-			printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
-				ret);
-		} else
-			enable_irq_wake(irq);
-	} else
-		printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
-
-	/* LCD:  backlight, and power; power controls other devices on the
-	 * board, like the touchscreen, EEPROM, and wakeup (!) switch.
-	 */
-	omap_cfg_reg(PWL);
-	if (gpio_request(2, "lcd_pwr") == 0)
-		gpio_direction_output(2, 1);
-
-	/*
-	 * GPIO based LEDs
-	 */
-	omap_cfg_reg(P18_1610_GPIO3);
-	omap_cfg_reg(MPUIO4);
-
-	i2c_register_board_info(1, mistral_i2c_board_info,
-			ARRAY_SIZE(mistral_i2c_board_info));
-
-	platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
-}
-#else
-static void __init osk_mistral_init(void) { }
-#endif
-
 #define EMIFS_CS3_VAL	(0x88013141)
 
 static void __init osk_init(void)
@@ -642,12 +381,6 @@ static void __init osk_init(void)
 	osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1));
 	omap_register_i2c_bus(1, 400, osk_i2c_board_info,
 			      ARRAY_SIZE(osk_i2c_board_info));
-	osk_mistral_init();
-
-#ifdef	CONFIG_OMAP_OSK_MISTRAL
-	omapfb_set_lcd_config(&osk_lcd_config);
-#endif
-
 }
 
 MACHINE_START(OMAP_OSK, "TI-OSK")