diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/eeepc-laptop.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 19cc9ae7db5a..f5d8473ea66f 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -553,6 +553,28 @@ static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode) return -EINVAL; } +static void cmsg_quirk(int cm, const char *name) +{ + int dummy; + + /* Some BIOSes do not report cm although it is avaliable. + Check if cm_getv[cm] works and, if yes, assume cm should be set. */ + if (!(ehotk->cm_supported & (1 << cm)) + && !read_acpi_int(ehotk->handle, cm_getv[cm], &dummy)) { + pr_info("%s (%x) not reported by BIOS," + " enabling anyway\n", name, 1 << cm); + ehotk->cm_supported |= 1 << cm; + } +} + +static void cmsg_quirks(void) +{ + cmsg_quirk(CM_ASL_LID, "LID"); + cmsg_quirk(CM_ASL_TYPE, "TYPE"); + cmsg_quirk(CM_ASL_PANELPOWER, "PANELPOWER"); + cmsg_quirk(CM_ASL_TPD, "TPD"); +} + static int eeepc_hotk_check(void) { const struct key_entry *key; @@ -576,6 +598,7 @@ static int eeepc_hotk_check(void) pr_err("Get control methods supported failed\n"); return -ENODEV; } else { + cmsg_quirks(); pr_info("Get control methods supported: 0x%x\n", ehotk->cm_supported); } |