usb: ohci-omap: Fix descriptor conversion

There were a bunch of issues with the patch converting the
OMAP1 OSK board to use descriptors for controlling the USB
host:

- The chip label was incorrect
- The GPIO offset was off-by-one
- The code should use sleeping accessors

This patch tries to fix all issues at the same time.

Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Fixes: 15d157e ("usb: ohci-omap: Convert to use GPIO descriptors")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20201130083033.29435-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Linus Walleij

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

@@ -288,7 +288,7 @@ static struct gpiod_lookup_table osk_usb_gpio_table = {
 	.dev_id = "ohci",
 	.table = {
 		/* Power GPIO on the I2C-attached TPS65010 */
-		GPIO_LOOKUP("i2c-tps65010", 1, "power", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("tps65010", 0, "power", GPIO_ACTIVE_HIGH),
 		GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent",
 			    GPIO_ACTIVE_HIGH),
 	},

drivers/usb/host/ohci-omap.c

@@ -91,14 +91,14 @@ static int omap_ohci_transceiver_power(struct ohci_omap_priv *priv, int on)
 				| ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
 			       INNOVATOR_FPGA_CAM_USB_CONTROL);
 		else if (priv->power)
-			gpiod_set_value(priv->power, 0);
+			gpiod_set_value_cansleep(priv->power, 0);
 	} else {
 		if (machine_is_omap_innovator() && cpu_is_omap1510())
 			__raw_writeb(__raw_readb(INNOVATOR_FPGA_CAM_USB_CONTROL)
 				& ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
 			       INNOVATOR_FPGA_CAM_USB_CONTROL);
 		else if (priv->power)
-			gpiod_set_value(priv->power, 1);
+			gpiod_set_value_cansleep(priv->power, 1);
 	}
 
 	return 0;