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From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
To: Russell King <linux@arm.linux.org.uk>, Daniel Mack <daniel@zonque.org>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	Linus Walleij <linus.walleij@linaro.org>,
	Alexandre Courbot <gnurou@gmail.com>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Samuel Ortiz <sameo@linux.intel.com>, Lee Jones <lee.jones@linaro.org>,
	Mark Brown <broonie@kernel.org>, Jingoo Han <jg1.han@samsung.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Andrea Adami <andrea.adami@gmail.com>
Subject: [PATCH v4 12/18] ARM: sa1100: make collie use new locomo drivers
Date: Mon, 25 May 2015 14:41:47 +0300
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Switch collie to new mfd-based locomo driver. Update platform data and
add necessary spi, i2c and regulator devices.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
 arch/arm/mach-sa1100/Kconfig               |   1 -
 arch/arm/mach-sa1100/collie.c              | 213 ++++++++++++++++++++++-------
 arch/arm/mach-sa1100/include/mach/collie.h |  16 ++-
 3 files changed, 178 insertions(+), 52 deletions(-)

diff --git a/arch/arm/mach-sa1100/Kconfig b/arch/arm/mach-sa1100/Kconfig
index c6f6ed1..37af126 100644
--- a/arch/arm/mach-sa1100/Kconfig
+++ b/arch/arm/mach-sa1100/Kconfig
@@ -48,7 +48,6 @@ endchoice
 config SA1100_COLLIE
 	bool "Sharp Zaurus SL5500"
 	# FIXME: select ARM_SA11x0_CPUFREQ
-	select SHARP_LOCOMO
 	select SHARP_PARAM
 	select SHARP_SCOOP
 	help
diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c
index 3cc2b71..b6dda7a 100644
--- a/arch/arm/mach-sa1100/collie.c
+++ b/arch/arm/mach-sa1100/collie.c
@@ -24,13 +24,21 @@
 #include <linux/platform_data/sa11x0-serial.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/ucb1x00.h>
+#include <linux/mfd/locomo.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/timer.h>
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
+#include <linux/i2c.h>
 #include <linux/gpio.h>
 #include <linux/power/gpio-charger.h>
+#include <linux/gpio/machine.h>
+#include <linux/iio/machine.h>
+#include <linux/mmc/host.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
+#include <linux/spi/mmc_spi.h>
 
 #include <video/sa1100fb.h>
 
@@ -47,7 +55,6 @@
 
 #include <asm/hardware/scoop.h>
 #include <asm/mach/sharpsl_param.h>
-#include <asm/hardware/locomo.h>
 #include <linux/platform_data/mfd-mcp-sa11x0.h>
 #include <mach/irqs.h>
 
@@ -151,36 +158,54 @@ static struct platform_device collie_power_device = {
 	.dev.platform_data	= &collie_power_data,
 };
 
-#ifdef CONFIG_SHARP_LOCOMO
 /*
  * low-level UART features.
  */
-struct platform_device collie_locomo_device;
+static struct gpio collie_uart_gpio[] = {
+	{ COLLIE_GPIO_CTS, GPIOF_IN, "CTS" },
+	{ COLLIE_GPIO_RTS, GPIOF_OUT_INIT_LOW, "RTS" },
+	{ COLLIE_GPIO_DTR, GPIOF_OUT_INIT_LOW, "DTR" },
+	{ COLLIE_GPIO_DSR, GPIOF_IN, "DSR" },
+};
+
+static bool collie_uart_gpio_ok;
 
 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
 {
-	if (mctrl & TIOCM_RTS)
-		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
-	else
-		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
-
-	if (mctrl & TIOCM_DTR)
-		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
-	else
-		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
+	if (!collie_uart_gpio_ok) {
+		int rc = gpio_request_array(collie_uart_gpio,
+				ARRAY_SIZE(collie_uart_gpio));
+		if (rc)
+			pr_err("collie_uart_set_mctrl: gpio request %d\n", rc);
+		else
+			collie_uart_gpio_ok = true;
+	}
+
+	if (collie_uart_gpio_ok) {
+		gpio_set_value(COLLIE_GPIO_RTS, !(mctrl & TIOCM_RTS));
+		gpio_set_value(COLLIE_GPIO_DTR, !(mctrl & TIOCM_DTR));
+	}
 }
 
 static u_int collie_uart_get_mctrl(struct uart_port *port)
 {
 	int ret = TIOCM_CD;
-	unsigned int r;
 
-	r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
-	if (r == -ENODEV)
+	if (!collie_uart_gpio_ok) {
+		int rc = gpio_request_array(collie_uart_gpio,
+				ARRAY_SIZE(collie_uart_gpio));
+		if (rc)
+			pr_err("collie_uart_get_mctrl: gpio request %d\n", rc);
+		else
+			collie_uart_gpio_ok = true;
+	}
+
+	if (!collie_uart_gpio_ok)
 		return ret;
-	if (r & LOCOMO_GPIO_CTS)
+
+	if (gpio_get_value(COLLIE_GPIO_CTS))
 		ret |= TIOCM_CTS;
-	if (r & LOCOMO_GPIO_DSR)
+	if (gpio_get_value(COLLIE_GPIO_DSR))
 		ret |= TIOCM_DSR;
 
 	return ret;
@@ -191,33 +216,35 @@ static struct sa1100_port_fns collie_port_fns __initdata = {
 	.get_mctrl	= collie_uart_get_mctrl,
 };
 
-static int collie_uart_probe(struct locomo_dev *dev)
-{
-	return 0;
-}
-
-static int collie_uart_remove(struct locomo_dev *dev)
-{
-	return 0;
-}
+static struct regulator_consumer_supply collie_amp_on_consumer_supplies[] = {
+	REGULATOR_SUPPLY("VCC", "1-004e"),
+};
 
-static struct locomo_driver collie_uart_driver = {
-	.drv = {
-		.name = "collie_uart",
+static struct regulator_init_data collie_amp_on_init_data = {
+	.constraints	= {
+		.name	= "AMP_ON",
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
 	},
-	.devid	= LOCOMO_DEVID_UART,
-	.probe	= collie_uart_probe,
-	.remove	= collie_uart_remove,
+	.consumer_supplies = collie_amp_on_consumer_supplies,
+	.num_consumer_supplies = ARRAY_SIZE(collie_amp_on_consumer_supplies),
 };
 
-static int __init collie_uart_init(void)
-{
-	return locomo_driver_register(&collie_uart_driver);
-}
-device_initcall(collie_uart_init);
-
-#endif
+static struct fixed_voltage_config collie_amp_on_data = {
+	.supply_name	= "amp_on",
+	.microvolts	= 3300000,
+	.gpio		= COLLIE_GPIO_AMP2_ON,
+	.startup_delay	= 5,
+	.enable_high	= 1,
+	.init_data	= &collie_amp_on_init_data,
+};
 
+static struct platform_device collie_amp_on_device = {
+	.name		= "reg-fixed-voltage",
+	.id		= -1,
+	.dev = {
+		.platform_data	= &collie_amp_on_data,
+	},
+};
 
 static struct resource locomo_resources[] = {
 	[0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
@@ -225,14 +252,15 @@ static struct resource locomo_resources[] = {
 };
 
 static struct locomo_platform_data locomo_info = {
-	.irq_base	= IRQ_BOARD_START,
+	.gpio_base = COLLIE_LOCOMO_GPIO_BASE,
+	.comadj	          = 128,
 };
 
-struct platform_device collie_locomo_device = {
+static struct platform_device collie_locomo_device = {
 	.name		= "locomo",
 	.id		= 0,
 	.dev		= {
-		.platform_data	= &locomo_info,
+		.platform_data  = &locomo_info,
 	},
 	.num_resources	= ARRAY_SIZE(locomo_resources),
 	.resource	= locomo_resources,
@@ -270,7 +298,55 @@ static struct platform_device collie_gpio_keys_device = {
 	},
 };
 
+static int collie_mmc_init(struct device *dev,
+		irqreturn_t (*isr)(int, void*), void *mmc)
+{
+	int ret;
+
+	ret = gpio_request(COLLIE_GPIO_CARD_POWER, "MMC power");
+	if (!ret)
+		ret = gpio_direction_output(COLLIE_GPIO_CARD_POWER, 0);
+	if (ret)
+		gpio_free(COLLIE_GPIO_CARD_POWER);
+	return ret;
+}
+
+static void collie_mmc_exit(struct device *dev, void *mmc)
+{
+	gpio_free(COLLIE_GPIO_CARD_POWER);
+}
+
+static void collie_mmc_setpower(struct device *dev, unsigned int mask)
+{
+	gpio_set_value(COLLIE_GPIO_CARD_POWER, !!mask);
+}
+
+static struct mmc_spi_platform_data collie_mmc_data = {
+	.init		= collie_mmc_init,
+	.exit		= collie_mmc_exit,
+	.setpower	= collie_mmc_setpower,
+	.detect_delay	= 200,
+	.powerup_msecs  = 200,
+	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
+	.flags		= MMC_SPI_USE_CD_GPIO | MMC_SPI_USE_RO_GPIO,
+	.cd_gpio	= COLLIE_GPIO_CARD_DETECT,
+	.ro_gpio	= COLLIE_GPIO_CARD_RO,
+	.caps2		= MMC_CAP2_RO_ACTIVE_HIGH,
+};
+
+static struct spi_board_info collie_spi_board_info[] __initdata = {
+	{
+		.modalias	= "mmc_spi",
+		.platform_data	= &collie_mmc_data,
+		.max_speed_hz	= 25000000,
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.mode		= SPI_MODE_0,
+	},
+};
+
 static struct platform_device *devices[] __initdata = {
+	&collie_amp_on_device,
 	&collie_locomo_device,
 	&colliescoop_device,
 	&collie_power_device,
@@ -347,10 +423,39 @@ static struct sa1100fb_mach_info collie_lcd_info = {
 
 	.lccr0		= LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
 	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
+};
 
-#ifdef CONFIG_BACKLIGHT_LOCOMO
-	.lcd_power	= locomolcd_power
-#endif
+static struct iio_map locomo_iio_map[] = {
+	{
+		.consumer_dev_name = "locomo-lcd.0",
+		.consumer_channel = "comadj",
+		.adc_channel_label = "CH0",
+	},
+	{ }
+};
+
+static struct i2c_board_info locomo_i2c_devs[] __initdata = {
+	{
+		I2C_BOARD_INFO("m62332", 0x4e),
+		.platform_data = locomo_iio_map,
+	},
+};
+
+static struct gpiod_lookup_table collie_bl_gpios_table = {
+	.dev_id = "locomo-backlight.0",
+	.table = {
+		GPIO_LOOKUP("locomo-gpio", 9, "flvr", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+}, collie_lcd_gpios_table = {
+	.dev_id = "locomo-lcd.0",
+	.table = {
+		GPIO_LOOKUP("locomo-gpio", 4, "VSHA", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("locomo-gpio", 5, "VSHD", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("locomo-gpio", 6, "Vee", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("locomo-gpio", 7, "MOD", GPIO_ACTIVE_HIGH),
+		{ },
+	},
 };
 
 static void __init collie_init(void)
@@ -381,11 +486,19 @@ static void __init collie_init(void)
 
 	GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
 
+	sharpsl_save_param();
+
 	sa11x0_ppc_configure_mcp();
 
 
 	platform_scoop_config = &collie_pcmcia_config;
 
+	if (sharpsl_param.comadj != -1)
+		locomo_info.comadj = sharpsl_param.comadj;
+
+	gpiod_add_lookup_table(&collie_bl_gpios_table);
+	gpiod_add_lookup_table(&collie_lcd_gpios_table);
+
 	ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 	if (ret) {
 		printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
@@ -397,7 +510,13 @@ static void __init collie_init(void)
 	sa11x0_register_mcp(&collie_mcp_data);
 	sa11x0_register_irda(&collie_ir_data);
 
-	sharpsl_save_param();
+	i2c_register_board_info(1,
+			locomo_i2c_devs, ARRAY_SIZE(locomo_i2c_devs));
+
+	spi_register_board_info(collie_spi_board_info,
+			ARRAY_SIZE(collie_spi_board_info));
+
+	regulator_has_full_constraints();
 }
 
 static struct map_desc collie_io_desc[] __initdata = {
@@ -419,9 +538,7 @@ static void __init collie_map_io(void)
 	sa1100_map_io();
 	iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
 
-#ifdef CONFIG_SHARP_LOCOMO
 	sa1100_register_uart_fns(&collie_port_fns);
-#endif
 	sa1100_register_uart(0, 3);
 	sa1100_register_uart(1, 1);
 }
diff --git a/arch/arm/mach-sa1100/include/mach/collie.h b/arch/arm/mach-sa1100/include/mach/collie.h
index b478ca1..2e3bf80 100644
--- a/arch/arm/mach-sa1100/include/mach/collie.h
+++ b/arch/arm/mach-sa1100/include/mach/collie.h
@@ -24,12 +24,12 @@ extern void locomolcd_power(int on);
 #define COLLIE_SCP_MUTE_L	SCOOP_GPCR_PA14
 #define COLLIE_SCP_MUTE_R	SCOOP_GPCR_PA15
 #define COLLIE_SCP_5VON		SCOOP_GPCR_PA16
-#define COLLIE_SCP_AMP_ON	SCOOP_GPCR_PA17
+#define COLLIE_GPIO_AMP2_ON	(COLLIE_SCOOP_GPIO_BASE + 6)
 #define COLLIE_GPIO_VPEN	(COLLIE_SCOOP_GPIO_BASE + 7)
 #define COLLIE_SCP_LB_VOL_CHG	SCOOP_GPCR_PA19
 
 #define COLLIE_SCOOP_IO_DIR	(COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R | \
-				COLLIE_SCP_5VON | COLLIE_SCP_AMP_ON | \
+				COLLIE_SCP_5VON | \
 				COLLIE_SCP_LB_VOL_CHG)
 #define COLLIE_SCOOP_IO_OUT	(COLLIE_SCP_MUTE_L | COLLIE_SCP_MUTE_R)
 
@@ -81,7 +81,7 @@ extern void locomolcd_power(int on);
 #define COLLIE_TC35143_GPIO_TBL_CHK     UCB_IO_1
 #define COLLIE_TC35143_GPIO_VPEN_ON     UCB_IO_2
 #define COLLIE_GPIO_IR_ON		(COLLIE_TC35143_GPIO_BASE + 3)
-#define COLLIE_TC35143_GPIO_AMP_ON      UCB_IO_4
+#define COLLIE_GPIO_AMP1_ON		(COLLIE_TC35143_GPIO_BASE + 4)
 #define COLLIE_TC35143_GPIO_VERSION1    UCB_IO_5
 #define COLLIE_TC35143_GPIO_FS8KLPF     UCB_IO_5
 #define COLLIE_TC35143_GPIO_BUZZER_BIAS UCB_IO_6
@@ -92,4 +92,14 @@ extern void locomolcd_power(int on);
 #define COLLIE_TC35143_GPIO_OUT		(UCB_IO_1 | UCB_IO_3 | UCB_IO_4 \
 						| UCB_IO_6)
 
+/* GPIOs on LoCoMo GA */
+#define COLLIE_LOCOMO_GPIO_BASE		(GPIO_MAX + 13 + 10)
+#define COLLIE_GPIO_RTS			(COLLIE_LOCOMO_GPIO_BASE + 0)
+#define COLLIE_GPIO_CTS			(COLLIE_LOCOMO_GPIO_BASE + 1)
+#define COLLIE_GPIO_DSR			(COLLIE_LOCOMO_GPIO_BASE + 2)
+#define COLLIE_GPIO_DTR			(COLLIE_LOCOMO_GPIO_BASE + 3)
+#define COLLIE_GPIO_CARD_DETECT		(COLLIE_LOCOMO_GPIO_BASE + 13)
+#define COLLIE_GPIO_CARD_RO		(COLLIE_LOCOMO_GPIO_BASE + 14)
+#define COLLIE_GPIO_CARD_POWER		(COLLIE_LOCOMO_GPIO_BASE + 15)
+
 #endif