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Commit ea2b5a6e authored by Takashi Iwai's avatar Takashi Iwai Committed by Mark Brown
Browse files

ASoC: rt5645: Add jack detection workaround for GPD Win 



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: default avatarHans de Goede <hdegoede@redhat.com>
Tested-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent aea086dd

sound/soc/codecs/rt5645.c

+29 −0
Original line number Diff line number Diff line
@@ -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);