ARM: ep93xx: Convert to use descriptors for GPIO LEDs

This converts the EP93xx to use GPIO descriptors for the
LEDs.

Cc: Nikita Shubin <nikita.shubin@maquefel.me>
Cc: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Cc: Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Lukasz Majewski <lukma@denx.de>
Tested-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230111132210.134478-1-linus.walleij@linaro.orgSigned-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-ep93xx/core.c

@@ -426,10 +426,8 @@ void __init ep93xx_register_spi(struct ep93xx_spi_info *info,
 static const struct gpio_led ep93xx_led_pins[] __initconst = {
 	{
 		.name	= "platform:grled",
-		.gpio	= EP93XX_GPIO_LINE_GRLED,
 	}, {
 		.name	= "platform:rdled",
-		.gpio	= EP93XX_GPIO_LINE_RDLED,
 	},
 };
 
@@ -438,6 +436,16 @@ static const struct gpio_led_platform_data ep93xx_led_data __initconst = {
 	.leds		= ep93xx_led_pins,
 };
 
+static struct gpiod_lookup_table ep93xx_leds_gpio_table = {
+	.dev_id = "leds-gpio",
+	.table = {
+		/* Use local offsets on gpiochip/port "E" */
+		GPIO_LOOKUP_IDX("E", 0, NULL, 0, GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP_IDX("E", 1,	NULL, 1, GPIO_ACTIVE_HIGH),
+		{ }
+	},
+};
+
 /*************************************************************************
  * EP93xx pwm peripheral handling
  *************************************************************************/
@@ -990,6 +998,7 @@ struct device __init *ep93xx_init_devices(void)
 	platform_device_register(&ep93xx_ohci_device);
 	platform_device_register(&ep93xx_wdt_device);
 
+	gpiod_add_lookup_table(&ep93xx_leds_gpio_table);
 	gpio_led_register_device(-1, &ep93xx_led_data);
 
 	return parent;