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authorAdam Lee <adam.lee@canonical.com>2013-06-07 16:20:08 +0800
committerMatthew Garrett <matthew.garrett@nebula.com>2013-09-05 08:51:24 -0400
commitfcb44e12d38a18f99d22ff66e739bb2f2ac762f0 (patch)
treeefe9105ff47d890dc7d8a3081a52ca528189e8d4 /drivers/platform
parentedf2d7780da5d96a168da7e31b36fb11620106d3 (diff)
downloadop-kernel-dev-fcb44e12d38a18f99d22ff66e739bb2f2ac762f0.zip
op-kernel-dev-fcb44e12d38a18f99d22ff66e739bb2f2ac762f0.tar.gz
thinkpad_acpi: add the ability setting TPACPI_LED_NONE by quirk
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>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/thinkpad_acpi.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 359c87b..03ca6c1 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -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;
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