USB/ARM: Switch S3C2410 UDC to GPIO descriptors

This converts the S3C2410 UDC USB device controller to use
GPIO descriptor tables and modern GPIO.

Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220901081649.564348-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

7 files changed, 65 insertions, 15 deletions

diff --git a/arch/arm/mach-s3c/mach-gta02.c b/arch/arm/mach-s3c/mach-gta02.c
index abfdce765525..d50a81d85ae1 100644
--- a/arch/arm/mach-s3c/mach-gta02.c
+++ b/arch/arm/mach-s3c/mach-gta02.c
@@ -421,7 +421,14 @@ static struct s3c2410_platform_nand __initdata gta02_nand_info = {
 /* Get PMU to set USB current limit accordingly. */
 static struct s3c2410_udc_mach_info gta02_udc_cfg __initdata = {
 	.vbus_draw	= gta02_udc_vbus_draw,
-	.pullup_pin = GTA02_GPIO_USB_PULLUP,
+};
+
+static struct gpiod_lookup_table gta02_udc_gpio_table = {
+	.dev_id = "s3c2410-usbgadget",
+	.table = {
+		GPIO_LOOKUP("GPIOB", 9, "pullup", GPIO_ACTIVE_HIGH),
+		{ },
+	},
 };
 
 /* USB */
@@ -555,6 +562,7 @@ static void __init gta02_machine_init(void)
 	s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
 			      S3C_GPIO_PULL_NONE);
 
+	gpiod_add_lookup_table(&gta02_udc_gpio_table);
 	gpiod_add_lookup_table(&gta02_audio_gpio_table);
 	gpiod_add_lookup_table(&gta02_mmc_gpio_table);
 	platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
diff --git a/arch/arm/mach-s3c/mach-h1940.c b/arch/arm/mach-s3c/mach-h1940.c
index 032b18837855..83ac6cfdb1d8 100644
--- a/arch/arm/mach-s3c/mach-h1940.c
+++ b/arch/arm/mach-s3c/mach-h1940.c
@@ -167,9 +167,15 @@ static struct gpio_chip h1940_latch_gpiochip = {
 };
 
 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
-	.vbus_pin		= S3C2410_GPG(5),
-	.vbus_pin_inverted	= 1,
-	.pullup_pin		= H1940_LATCH_USB_DP,
+};
+
+static struct gpiod_lookup_table h1940_udc_gpio_table = {
+	.dev_id = "s3c2410-usbgadget",
+	.table = {
+		GPIO_LOOKUP("GPIOG", 5, "vbus", GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP("H1940_LATCH", 7, "pullup", GPIO_ACTIVE_HIGH),
+		{ },
+	},
 };
 
 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
@@ -725,6 +731,7 @@ static void __init h1940_init(void)
 	u32 tmp;
 
 	s3c24xx_fb_set_platdata(&h1940_fb_info);
+	gpiod_add_lookup_table(&h1940_udc_gpio_table);
 	gpiod_add_lookup_table(&h1940_mmc_gpio_table);
 	gpiod_add_lookup_table(&h1940_audio_gpio_table);
 	gpiod_add_lookup_table(&h1940_bat_gpio_table);
diff --git a/arch/arm/mach-s3c/mach-jive.c b/arch/arm/mach-s3c/mach-jive.c
index e32773175944..16859bb3bb13 100644
--- a/arch/arm/mach-s3c/mach-jive.c
+++ b/arch/arm/mach-s3c/mach-jive.c
@@ -493,7 +493,14 @@ static struct platform_device *jive_devices[] __initdata = {
 };
 
 static struct s3c2410_udc_mach_info jive_udc_cfg __initdata = {
-	.vbus_pin	= S3C2410_GPG(1),		/* detect is on GPG1 */
+};
+
+static struct gpiod_lookup_table jive_udc_gpio_table = {
+	.dev_id = "s3c2410-usbgadget",
+	.table = {
+		GPIO_LOOKUP("GPIOG", 1, "vbus", GPIO_ACTIVE_HIGH),
+		{ },
+	},
 };
 
 /* Jive power management device */
@@ -669,6 +676,7 @@ static void __init jive_machine_init(void)
 
 	pm_power_off = jive_power_off;
 
+	gpiod_add_lookup_table(&jive_udc_gpio_table);
 	gpiod_add_lookup_table(&jive_lcdspi_gpiod_table);
 	gpiod_add_lookup_table(&jive_wm8750_gpiod_table);
 	platform_add_devices(jive_devices, ARRAY_SIZE(jive_devices));
diff --git a/arch/arm/mach-s3c/mach-mini2440.c b/arch/arm/mach-s3c/mach-mini2440.c
index a6d17ffcdba1..283be70ca622 100644
--- a/arch/arm/mach-s3c/mach-mini2440.c
+++ b/arch/arm/mach-s3c/mach-mini2440.c
@@ -93,9 +93,15 @@ static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
 /* USB device UDC support */
 
 static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
-	.pullup_pin = S3C2410_GPC(5),
 };
 
+static struct gpiod_lookup_table mini2440_udc_gpio_table = {
+	.dev_id = "s3c2410-usbgadget",
+	.table = {
+		GPIO_LOOKUP("GPIOC", 5, "pullup", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
 
 /* LCD timing and setup */
 
@@ -755,6 +761,7 @@ static void __init mini2440_init(void)
 		s3c24xx_fb_set_platdata(&mini2440_fb_info);
 	}
 
+	gpiod_add_lookup_table(&mini2440_udc_gpio_table);
 	s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
 	gpiod_add_lookup_table(&mini2440_mmc_gpio_table);
 	s3c24xx_mci_set_platdata(&mini2440_mmc_cfg);
diff --git a/arch/arm/mach-s3c/mach-n30.c b/arch/arm/mach-s3c/mach-n30.c
index 75f5dc6351a1..90122fc6b2aa 100644
--- a/arch/arm/mach-s3c/mach-n30.c
+++ b/arch/arm/mach-s3c/mach-n30.c
@@ -84,9 +84,15 @@ static struct s3c2410_uartcfg n30_uartcfgs[] = {
 };
 
 static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
-	.vbus_pin		= S3C2410_GPG(1),
-	.vbus_pin_inverted	= 0,
-	.pullup_pin		= S3C2410_GPB(3),
+};
+
+static struct gpiod_lookup_table n30_udc_gpio_table = {
+	.dev_id = "s3c2410-usbgadget",
+	.table = {
+		GPIO_LOOKUP("GPIOG", 1, "vbus", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("GPIOB", 3, "pullup", GPIO_ACTIVE_HIGH),
+		{ },
+	},
 };
 
 static struct gpio_keys_button n30_buttons[] = {
@@ -595,6 +601,7 @@ static void __init n30_init(void)
 	WARN_ON(gpio_request(S3C2410_GPG(4), "mmc power"));
 
 	s3c24xx_fb_set_platdata(&n30_fb_info);
+	gpiod_add_lookup_table(&n30_udc_gpio_table);
 	s3c24xx_udc_set_platdata(&n30_udc_cfg);
 	gpiod_add_lookup_table(&n30_mci_gpio_table);
 	s3c24xx_mci_set_platdata(&n30_mci_cfg);
diff --git a/arch/arm/mach-s3c/mach-rx1950.c b/arch/arm/mach-s3c/mach-rx1950.c
index 7a3e7c0a6484..d8c49e562660 100644
--- a/arch/arm/mach-s3c/mach-rx1950.c
+++ b/arch/arm/mach-s3c/mach-rx1950.c
@@ -643,9 +643,15 @@ static struct s3c2410_platform_nand rx1950_nand_info = {
 };
 
 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
-	.vbus_pin = S3C2410_GPG(5),
-	.vbus_pin_inverted = 1,
-	.pullup_pin = S3C2410_GPJ(5),
+};
+
+static struct gpiod_lookup_table rx1950_udc_gpio_table = {
+	.dev_id = "s3c2410-usbgadget",
+	.table = {
+		GPIO_LOOKUP("GPIOG", 5, "vbus", GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP("GPIOJ", 5, "pullup", GPIO_ACTIVE_HIGH),
+		{ },
+	},
 };
 
 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
@@ -847,6 +853,7 @@ static void __init rx1950_init_machine(void)
 	gpio_direction_output(S3C2410_GPJ(6), 0);
 
 	pwm_add_table(rx1950_pwm_lookup, ARRAY_SIZE(rx1950_pwm_lookup));
+	gpiod_add_lookup_table(&rx1950_udc_gpio_table);
 	gpiod_add_lookup_table(&rx1950_audio_gpio_table);
 	gpiod_add_lookup_table(&rx1950_bat_gpio_table);
 	/* Configure the I2S pins (GPE0...GPE4) in correct mode */
diff --git a/arch/arm/mach-s3c/mach-smdk2413.c b/arch/arm/mach-s3c/mach-smdk2413.c
index f1f0ec174579..2b4e20aaa346 100644
--- a/arch/arm/mach-s3c/mach-smdk2413.c
+++ b/arch/arm/mach-s3c/mach-smdk2413.c
@@ -12,7 +12,7 @@
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/init.h>
-#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
 #include <linux/serial_core.h>
 #include <linux/serial_s3c.h>
 #include <linux/platform_device.h>
@@ -74,9 +74,15 @@ static struct s3c2410_uartcfg smdk2413_uartcfgs[] __initdata = {
 
 
 static struct s3c2410_udc_mach_info smdk2413_udc_cfg __initdata = {
-	.pullup_pin = S3C2410_GPF(2),
 };
 
+static struct gpiod_lookup_table smdk2413_udc_gpio_table = {
+	.dev_id = "s3c2410-usbgadget",
+	.table = {
+		GPIO_LOOKUP("GPIOF", 2, "pullup", GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
 
 static struct platform_device *smdk2413_devices[] __initdata = {
 	&s3c_device_ohci,
@@ -115,7 +121,7 @@ static void __init smdk2413_machine_init(void)
 			      S3C2410_MISCCR_USBSUSPND0 |
 			      S3C2410_MISCCR_USBSUSPND1, 0x0);
 
-
+	gpiod_add_lookup_table(&smdk2413_udc_gpio_table);
  	s3c24xx_udc_set_platdata(&smdk2413_udc_cfg);
 	s3c_i2c0_set_platdata(NULL);
 	/* Configure the I2S pins (GPE0...GPE4) in correct mode */