usb: phy: phy-gpio-vbus-usb: Convert to GPIO descriptors

Instead of using the legacy GPIO API and keeping track on
polarity inversion semantics in the driver, switch to use
GPIO descriptors for this driver and change all consumers
in the process.

This makes it possible to retire platform data completely:
the only remaining platform data member was "wakeup" which
was intended to make the vbus interrupt wakeup capable,
but was not set by any users and thus remained unused. VBUS
was not waking any devices up. Leave a comment about it so
later developers using the platform can consider setting it
to always enabled so plugging in USB wakes up the platform.

Cc: Daniel Mack <daniel@zonque.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Felipe Balbi <balbi@kernel.org>
Acked-by: Sylwester Nawrocki <snawrocki@kernel.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200123155013.93249-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 10 insertions, 8 deletions

diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 4e13893edeb9..3d2c108e911e 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -33,7 +33,6 @@
 #include <linux/spi/pxa2xx_spi.h>
 #include <linux/input/matrix_keypad.h>
 #include <linux/platform_data/i2c-pxa.h>
-#include <linux/usb/gpio_vbus.h>
 #include <linux/reboot.h>
 #include <linux/memblock.h>
 
@@ -240,18 +239,20 @@ static struct scoop_pcmcia_config tosa_pcmcia_config = {
 /*
  * USB Device Controller
  */
-static struct gpio_vbus_mach_info tosa_udc_info = {
-	.gpio_pullup		= TOSA_GPIO_USB_PULLUP,
-	.gpio_vbus		= TOSA_GPIO_USB_IN,
-	.gpio_vbus_inverted	= 1,
+static struct gpiod_lookup_table tosa_udc_gpiod_table = {
+	.dev_id = "gpio-vbus",
+	.table = {
+		GPIO_LOOKUP("gpio-pxa", TOSA_GPIO_USB_IN,
+			    "vbus", GPIO_ACTIVE_LOW),
+		GPIO_LOOKUP("gpio-pxa", TOSA_GPIO_USB_PULLUP,
+			    "pullup", GPIO_ACTIVE_HIGH),
+		{ },
+	},
 };
 
 static struct platform_device tosa_gpio_vbus = {
 	.name	= "gpio-vbus",
 	.id	= -1,
-	.dev	= {
-		.platform_data	= &tosa_udc_info,
-	},
 };
 
 /*
@@ -949,6 +950,7 @@ static void __init tosa_init(void)
 
 	clk_add_alias("CLK_CK3P6MI", tc6393xb_device.name, "GPIO11_CLK", NULL);
 
+	gpiod_add_lookup_table(&tosa_udc_gpiod_table);
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 }