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platform/x86: pcengines-apuv2: revert wiring up simswitch GPIO as LED 

This reverts commit 5037d4ddda.

Explanation why this does not work:
This change connects the simswap to the LED subsystem of the kernel.
From my point of view, it's nonsense. If we do it this way, then this
can be switched relatively easily via the LED subsystem (trigger:
none/default-on) and that is dangerous! If this is used, it would be
unfavorable, since there is also another trigger (trigger:
heartbeat/netdev).

Therefore, this simswap GPIO should remain in the GPIO
subsystem and be switched via it and not be connected to the LED
subsystem. To avoid the problems mentioned above. The LED subsystem is
not made for this and it is not a good compromise, but rather dangerous.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Florian Eckert 2020-07-13 10:50:10 +02:00 committed by Andy Shevchenko
parent f9e1104367
commit f560cd5021
1 changed files with 0 additions and 3 deletions
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3
drivers/platform/x86/pcengines-apuv2.c
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@ -78,7 +78,6 @@ static const struct gpio_led apu2_leds[] = {
{ .name = "apu:green:1" },
{ .name = "apu:green:2" },
{ .name = "apu:green:3" },
{ .name = "apu:simswap" },
};
static const struct gpio_led_platform_data apu2_leds_pdata = {
@ -95,8 +94,6 @@ static struct gpiod_lookup_table gpios_led_table = {
NULL, 1, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX(AMD_FCH_GPIO_DRIVER_NAME, APU2_GPIO_LINE_LED3,
NULL, 2, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX(AMD_FCH_GPIO_DRIVER_NAME, APU2_GPIO_LINE_SIMSWAP,
NULL, 3, GPIO_ACTIVE_LOW),
}
};