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thinkpad_acpi: add the ability setting TPACPI_LED_NONE by quirk

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Some new Lenovo or ThinkPad laptops don't have EC controllable LEDs,
their LED quirks are 0. This patch set led_supported=TPACPI_LED_NONE
when quirk equals 0.

Signed-off-by: Adam Lee <adam.lee@canonical.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
This commit is contained in:
Adam Lee 2013-06-07 16:20:08 +08:00 committed by Matthew Garrett
parent edf2d7780d
commit fcb44e12d3
1 changed files with 10 additions and 3 deletions
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13
drivers/platform/x86/thinkpad_acpi.c
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@ -5296,6 +5296,16 @@ static int __init led_init(struct ibm_init_struct *iibm)
led_supported = led_init_detect_mode();
if (led_supported != TPACPI_LED_NONE) {
useful_leds = tpacpi_check_quirks(led_useful_qtable,
ARRAY_SIZE(led_useful_qtable));
if (!useful_leds) {
led_handle = NULL;
led_supported = TPACPI_LED_NONE;
}
}
vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n",
str_supported(led_supported), led_supported);
@ -5309,9 +5319,6 @@ static int __init led_init(struct ibm_init_struct *iibm)
return -ENOMEM;
}
useful_leds = tpacpi_check_quirks(led_useful_qtable,
ARRAY_SIZE(led_useful_qtable));
for (i = 0; i < TPACPI_LED_NUMLEDS; i++) {
tpacpi_leds[i].led = -1;