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hp-wmi: Add support for SMBus hotkeys

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Several models of HP laptops using the same DSDT have hotkey buttons
that do not work until the EC is configured to enable them.

Signed-off-by: Kyle Evans <kvans32@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
This commit is contained in:
Kyle Evans 2013-01-31 15:44:27 -05:00 • committed by Matthew Garrett
parent 2adb95d83f
commit fabf85e3ca
1 changed files with 4 additions and 0 deletions
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4
drivers/platform/x86/hp-wmi.c
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@ -138,6 +138,7 @@ static const struct key_entry hp_wmi_keymap[] = {
{ KE_KEY, 0x2142, { KEY_MEDIA } }, { KE_KEY, 0x2142, { KEY_MEDIA } },
{ KE_KEY, 0x213b, { KEY_INFO } }, { KE_KEY, 0x213b, { KEY_INFO } },
{ KE_KEY, 0x2169, { KEY_DIRECTION } }, { KE_KEY, 0x2169, { KEY_DIRECTION } },
{ KE_KEY, 0x216a, { KEY_SETUP } },
{ KE_KEY, 0x231b, { KEY_HELP } }, { KE_KEY, 0x231b, { KEY_HELP } },
{ KE_END, 0 } { KE_END, 0 }
}; };
@ -926,6 +927,9 @@ static int __init hp_wmi_init(void)
err = hp_wmi_input_setup(); err = hp_wmi_input_setup();
if (err) if (err)
return err; return err;
//Enable magic for hotkeys that run on the SMBus
ec_write(0xe6,0x6e);
} }
if (bios_capable) { if (bios_capable) {