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[ARM] orion5x: D-link DNS-323 revision A1 power LED
This patch fixes the power LED on DNS-323 revision A1, and adds timer support for (hopefully) both A1 and B1 revisions. Power LED on revision A1 is active low and also requires GPIO 4 to be low to work. Tested on my DNS-323 revision A1. I have set the default trigger to timer as that replicates the behaviour of the original firmware, userspace can change the trigger at the end of the boot process providing a useful indication that booting has completed. Signed-off-by: Nicolas Pitre <nico@marvell.com>
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@ -34,7 +34,8 @@
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#define DNS323_GPIO_LED_RIGHT_AMBER 1
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#define DNS323_GPIO_LED_LEFT_AMBER 2
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#define DNS323_GPIO_SYSTEM_UP 3
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#define DNS323_GPIO_LED_POWER 5
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#define DNS323_GPIO_LED_POWER1 4
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#define DNS323_GPIO_LED_POWER2 5
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#define DNS323_GPIO_OVERTEMP 6
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#define DNS323_GPIO_RTC 7
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#define DNS323_GPIO_POWER_OFF 8
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@ -237,11 +238,31 @@ error_fail:
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* GPIO LEDs (simple - doesn't use hardware blinking support)
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*/
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#define ORION_BLINK_HALF_PERIOD 100 /* ms */
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static int dns323_gpio_blink_set(unsigned gpio,
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unsigned long *delay_on, unsigned long *delay_off)
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{
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static int value = 0;
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if (!*delay_on && !*delay_off)
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*delay_on = *delay_off = ORION_BLINK_HALF_PERIOD;
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if (ORION_BLINK_HALF_PERIOD == *delay_on
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&& ORION_BLINK_HALF_PERIOD == *delay_off) {
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value = !value;
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orion_gpio_set_blink(gpio, value);
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return 0;
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}
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return -EINVAL;
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}
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static struct gpio_led dns323_leds[] = {
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{
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.name = "power:blue",
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.gpio = DNS323_GPIO_LED_POWER,
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.default_state = LEDS_GPIO_DEFSTATE_ON,
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.gpio = DNS323_GPIO_LED_POWER2,
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.default_trigger = "timer",
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}, {
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.name = "right:amber",
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.gpio = DNS323_GPIO_LED_RIGHT_AMBER,
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@ -256,6 +277,7 @@ static struct gpio_led dns323_leds[] = {
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static struct gpio_led_platform_data dns323_led_data = {
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.num_leds = ARRAY_SIZE(dns323_leds),
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.leds = dns323_leds,
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.gpio_blink_set = dns323_gpio_blink_set,
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};
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static struct platform_device dns323_gpio_leds = {
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@ -412,6 +434,14 @@ static void __init dns323_init(void)
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orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
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platform_device_register(&dns323_nor_flash);
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/* The 5181 power LED is active low and requires
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* DNS323_GPIO_LED_POWER1 to also be low.
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*/
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if (dns323_dev_id() == MV88F5181_DEV_ID) {
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dns323_leds[0].active_low = 1;
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gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
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}
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platform_device_register(&dns323_gpio_leds);
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platform_device_register(&dns323_button_device);
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