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x86/platform/geode: Convert alix LED to GPIO machine descriptor 

Look up the LED from a GPIO machine descriptor table. The Geode LEDs
should be on the CS5535 companion chip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lkml.kernel.org/r/20201124085339.6181-3-linus.walleij@linaro.org
This commit is contained in:
Linus Walleij 2020-11-24 09:53:39 +01:00 committed by Borislav Petkov
parent ab20fda2a3
commit 6043030182
1 changed files with 13 additions and 6 deletions
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19
arch/x86/platform/geode/alix.c
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@ -22,6 +22,7 @@
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/gpio/machine.h>
#include <linux/dmi.h>
#include <asm/geode.h>
@ -69,21 +70,15 @@ static struct platform_device alix_buttons_dev = {
static struct gpio_led alix_leds[] = {
{
.name = "alix:1",
.gpio = 6,
.default_trigger = "default-on",
.active_low = 1,
},
{
.name = "alix:2",
.gpio = 25,
.default_trigger = "default-off",
.active_low = 1,
},
{
.name = "alix:3",
.gpio = 27,
.default_trigger = "default-off",
.active_low = 1,
},
};
@ -92,6 +87,17 @@ static struct gpio_led_platform_data alix_leds_data = {
.leds = alix_leds,
};
static struct gpiod_lookup_table alix_leds_gpio_table = {
.dev_id = "leds-gpio",
.table = {
/* The Geode GPIOs should be on the CS5535 companion chip */
GPIO_LOOKUP_IDX("cs5535-gpio", 6, NULL, 0, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("cs5535-gpio", 25, NULL, 1, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("cs5535-gpio", 27, NULL, 2, GPIO_ACTIVE_LOW),
{ }
},
};
static struct platform_device alix_leds_dev = {
.name = "leds-gpio",
.id = -1,
@ -106,6 +112,7 @@ static struct platform_device *alix_devs[] __initdata = {
static void __init register_alix(void)
{
/* Setup LED control through leds-gpio driver */
gpiod_add_lookup_table(&alix_leds_gpio_table);
platform_add_devices(alix_devs, ARRAY_SIZE(alix_devs));
}