diff options
| author | Mario Limonciello <mario_limonciello@dell.com> | 2014-07-24 06:19:23 +0200 |
|---|---|---|
| committer | Matthew Garrett <matthew.garrett@nebula.com> | 2014-08-16 10:23:55 +0200 |
| commit | fee4efd7d1372aa9ac2f6873167f02259cb143ef (patch) | |
| tree | ba308ae0f34a8e677e9947bbeffe5efaf9079a31 | |
| parent | ideapad-laptop: Constify DMI table and other r/o variables (diff) | |
| download | linux-fee4efd7d1372aa9ac2f6873167f02259cb143ef.tar.xz linux-fee4efd7d1372aa9ac2f6873167f02259cb143ef.zip | |
alienware-wmi: make hdmi_mux enabled on case-by-case basis
Not all HW supporting WMAX method will support the HDMI mux feature.
Explicitly quirk the HW that does support it.
Signed-off-by: Mario Limonciello <mario_limonciello@dell.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
| -rw-r--r-- | drivers/platform/x86/alienware-wmi.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/platform/x86/alienware-wmi.c b/drivers/platform/x86/alienware-wmi.c index cdbaf3c5328a..c5af23b64438 100644 --- a/drivers/platform/x86/alienware-wmi.c +++ b/drivers/platform/x86/alienware-wmi.c @@ -59,16 +59,24 @@ enum WMAX_CONTROL_STATES { struct quirk_entry { u8 num_zones; + u8 hdmi_mux; }; static struct quirk_entry *quirks; static struct quirk_entry quirk_unknown = { .num_zones = 2, + .hdmi_mux = 0, }; static struct quirk_entry quirk_x51_family = { .num_zones = 3, + .hdmi_mux = 0. +}; + +static struct quirk_entry quirk_asm100 = { + .num_zones = 2, + .hdmi_mux = 1, }; static int __init dmi_matched(const struct dmi_system_id *dmi) @@ -96,6 +104,15 @@ static const struct dmi_system_id alienware_quirks[] __initconst = { }, .driver_data = &quirk_x51_family, }, + { + .callback = dmi_matched, + .ident = "Alienware ASM100", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "ASM100"), + }, + .driver_data = &quirk_asm100, + }, {} }; @@ -537,7 +554,8 @@ static struct attribute_group hdmi_attribute_group = { static void remove_hdmi(struct platform_device *dev) { - sysfs_remove_group(&dev->dev.kobj, &hdmi_attribute_group); + if (quirks->hdmi_mux > 0) + sysfs_remove_group(&dev->dev.kobj, &hdmi_attribute_group); } static int create_hdmi(struct platform_device *dev) @@ -583,7 +601,7 @@ static int __init alienware_wmi_init(void) if (ret) goto fail_platform_device2; - if (interface == WMAX) { + if (quirks->hdmi_mux > 0) { ret = create_hdmi(platform_device); if (ret) goto fail_prep_hdmi; |