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ASoC: rt5645: Add jack detection workaround for GPD Win

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GPD Win requires jd_mode=3 and the inverted flag for making the jack
detection working.  Unfortunately, the BIOS doesn't give a nice way to
match with DMI strings, and the only working way so far is to match
with the board vendor/name/version/date to some known patterns.

Hopefully other vendors won't do such a stupid setup, too...

Thanks to Hans de Goede for the DMI matching suggestion.

Suggested-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Takashi Iwai 2017-06-28 14:49:39 +02:00 committed by Mark Brown
parent aea086dda2
commit ea2b5a6e3a
1 changed files with 29 additions and 0 deletions
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29
sound/soc/codecs/rt5645.c
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@ -3599,6 +3599,33 @@ static struct dmi_system_id dmi_platform_intel_broadwell[] = {
{ }
};
static struct rt5645_platform_data gpd_win_platform_data = {
.jd_mode = 3,
.inv_jd1_1 = true,
};
static const struct dmi_system_id dmi_platform_gpd_win[] = {
{
/*
* Match for the GPDwin which unfortunately uses somewhat
* generic dmi strings, which is why we test for 4 strings.
* Comparing against 23 other byt/cht boards, board_vendor
* and board_name are unique to the GPDwin, where as only one
* other board has the same board_serial and 3 others have
* the same default product_name. Also the GPDwin is the
* only device to have both board_ and product_name not set.
*/
.ident = "GPD Win",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
DMI_MATCH(DMI_BOARD_NAME, "Default string"),
DMI_MATCH(DMI_BOARD_SERIAL, "Default string"),
DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
},
},
{}
};
static bool rt5645_check_dp(struct device *dev)
{
if (device_property_present(dev, "realtek,in2-differential") ||
@ -3649,6 +3676,8 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
rt5645_parse_dt(rt5645, &i2c->dev);
else if (dmi_check_system(dmi_platform_intel_braswell))
rt5645->pdata = general_platform_data;
else if (dmi_check_system(dmi_platform_gpd_win))
rt5645->pdata = gpd_win_platform_data;
rt5645->gpiod_hp_det = devm_gpiod_get_optional(&i2c->dev, "hp-detect",
GPIOD_IN);