From 3e2bc5c5b3274ec7402fabbfba557ea58084985e Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jo=C3=A3o=20Paulo=20Rechi=20Vita?= Date: Tue, 6 Jun 2017 13:07:22 -0700 Subject: [PATCH] platform/x86: acer-wmi: Detect RF Button capability MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit If a machine reports a RF Button in the communication button device bitmap, we need to remove it before calling Get Device Status otherwise it will return the "Undefined device" (0xE2) error code. Although this may be a BIOS bug, we don't really need to get or set the RF Button status. The status indicator LED embedded in the button is controlled by firmware logic, depending on the status of the wireless radios present on the machine (WiFi || WWAN). This commit fixes the wireless status indicator LED on the Acer TravelMate P648-G2-MG, and cleans the following message from the kernel log: "Get Current Device Status failed: 0xe2 - 0x0". Signed-off-by: João Paulo Rechi Vita Reviewed-by: "Lee, Chun-Yi" Signed-off-by: Andy Shevchenko --- drivers/platform/x86/acer-wmi.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 79fa5ab3fd00..3b381178039b 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -149,6 +149,8 @@ struct event_return_value { #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */ #define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */ #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */ +#define ACER_WMID3_GDS_RFBTN (1<<14) /* RF Button */ + #define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */ /* Hotkey Customized Setting and Acer Application Status. @@ -221,6 +223,7 @@ struct hotkey_function_type_aa { #define ACER_CAP_BRIGHTNESS (1<<3) #define ACER_CAP_THREEG (1<<4) #define ACER_CAP_ACCEL (1<<5) +#define ACER_CAP_RFBTN (1<<6) #define ACER_CAP_ANY (0xFFFFFFFF) /* @@ -1264,6 +1267,10 @@ static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d) interface->capability |= ACER_CAP_THREEG; if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_BLUETOOTH) interface->capability |= ACER_CAP_BLUETOOTH; + if (type_aa->commun_func_bitmap & ACER_WMID3_GDS_RFBTN) { + interface->capability |= ACER_CAP_RFBTN; + commun_func_bitmap &= ~ACER_WMID3_GDS_RFBTN; + } commun_fn_key_number = type_aa->commun_fn_key_number; } -- 2.20.1