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ARM: orion5x: Convert DNS323 board to GPIO descriptors for LEDs

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This makes the LEDs on the D-Link DNS323 Orion5x board use GPIO
descriptors instead of hardcoded GPIOs from the global
numberspace.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
This commit is contained in:
Linus Walleij 2024-04-23 15:53:58 +02:00 committed by Gregory CLEMENT
parent 79f46f6841
commit ef48d0866a
1 changed files with 48 additions and 15 deletions
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63
arch/arm/mach-orion5x/dns323-setup.c
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@ -14,6 +14,7 @@
*
*/
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
@ -254,37 +255,64 @@ static int __init dns323_read_mac_addr(void)
static struct gpio_led dns323ab_leds[] = {
{
.name = "power:blue",
.gpio = DNS323_GPIO_LED_POWER2,
.default_trigger = "default-on",
}, {
.name = "right:amber",
.gpio = DNS323_GPIO_LED_RIGHT_AMBER,
.active_low = 1,
}, {
.name = "left:amber",
.gpio = DNS323_GPIO_LED_LEFT_AMBER,
.active_low = 1,
},
};
static struct gpiod_lookup_table dns323a1_leds_gpio_table = {
.dev_id = "leds-gpio",
.table = {
GPIO_LOOKUP_IDX("orion_gpio0", DNS323_GPIO_LED_POWER2, NULL,
0, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("orion_gpio0", DNS323_GPIO_LED_RIGHT_AMBER, NULL,
1, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("orion_gpio0", DNS323_GPIO_LED_LEFT_AMBER, NULL,
2, GPIO_ACTIVE_LOW),
{ },
},
};
/* B1 is the same but power LED is active high */
static struct gpiod_lookup_table dns323b1_leds_gpio_table = {
.dev_id = "leds-gpio",
.table = {
GPIO_LOOKUP_IDX("orion_gpio0", DNS323_GPIO_LED_POWER2, NULL,
0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("orion_gpio0", DNS323_GPIO_LED_RIGHT_AMBER, NULL,
1, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("orion_gpio0", DNS323_GPIO_LED_LEFT_AMBER, NULL,
2, GPIO_ACTIVE_LOW),
{ },
},
};
static struct gpio_led dns323c_leds[] = {
{
.name = "power:blue",
.gpio = DNS323C_GPIO_LED_POWER,
.default_trigger = "timer",
.active_low = 1,
}, {
.name = "right:amber",
.gpio = DNS323C_GPIO_LED_RIGHT_AMBER,
.active_low = 1,
}, {
.name = "left:amber",
.gpio = DNS323C_GPIO_LED_LEFT_AMBER,
.active_low = 1,
},
};
static struct gpiod_lookup_table dns323c_leds_gpio_table = {
.dev_id = "leds-gpio",
.table = {
GPIO_LOOKUP_IDX("orion_gpio0", DNS323C_GPIO_LED_POWER, NULL,
0, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("orion_gpio0", DNS323C_GPIO_LED_RIGHT_AMBER, NULL,
1, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("orion_gpio0", DNS323C_GPIO_LED_LEFT_AMBER, NULL,
2, GPIO_ACTIVE_LOW),
{ },
},
};
static struct gpio_led_platform_data dns323ab_led_data = {
.num_leds = ARRAY_SIZE(dns323ab_leds),
@ -621,16 +649,21 @@ static void __init dns323_init(void)
/* The 5181 power LED is active low and requires
* DNS323_GPIO_LED_POWER1 to also be low.
*/
dns323ab_leds[0].active_low = 1;
gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
fallthrough;
gpiod_add_lookup_table(&dns323a1_leds_gpio_table);
gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
i2c_register_board_info(0, dns323ab_i2c_devices,
ARRAY_SIZE(dns323ab_i2c_devices));
break;
case DNS323_REV_B1:
gpiod_add_lookup_table(&dns323b1_leds_gpio_table);
i2c_register_board_info(0, dns323ab_i2c_devices,
ARRAY_SIZE(dns323ab_i2c_devices));
break;
case DNS323_REV_C1:
/* Hookup LEDs & Buttons */
gpiod_add_lookup_table(&dns323c_leds_gpio_table);
dns323_gpio_leds.dev.platform_data = &dns323c_led_data;
dns323_button_device.dev.platform_data = &dns323c_button_data;