From: Fang, Yang A <yang.a.fang@intel.com>
Date: Sat, 25 Apr 2015 00:50:54 +0000 (-0700)
Subject: ASoC: rt5645: set platform data base on DMI
X-Git-Tag: v4.2-rc1~109^2~38^2~12^2~16
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=78c34fd42e3b0ea6336ba3ef77bb329e0b256756;p=karo-tx-linux.git

ASoC: rt5645: set platform data base on DMI

set platform specific data for intel strago platform

Signed-off-by: Fang, Yang A <yang.a.fang@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index be4d741c45ba..fb561b4332a0 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -19,6 +19,7 @@
 #include <linux/spi/spi.h>
 #include <linux/gpio.h>
 #include <linux/acpi.h>
+#include <linux/dmi.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -2666,6 +2667,34 @@ static struct acpi_device_id rt5645_acpi_match[] = {
 MODULE_DEVICE_TABLE(acpi, rt5645_acpi_match);
 #endif
 
+static struct rt5645_platform_data *rt5645_pdata;
+
+static struct rt5645_platform_data strago_platform_data = {
+	.dmic_en = true,
+	.dmic1_data_pin = -1,
+	.dmic2_data_pin = RT5645_DMIC_DATA_IN2P,
+	.en_jd_func = true,
+	.jd_mode = 3,
+};
+
+static int strago_quirk_cb(const struct dmi_system_id *id)
+{
+	rt5645_pdata = &strago_platform_data;
+
+	return 1;
+}
+
+static struct dmi_system_id dmi_platform_intel_braswell[] __initdata = {
+	{
+		.ident = "Intel Strago",
+		.callback = strago_quirk_cb,
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Strago"),
+		},
+	},
+	{ }
+};
+
 static int rt5645_i2c_probe(struct i2c_client *i2c,
 		    const struct i2c_device_id *id)
 {
@@ -2673,6 +2702,7 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
 	struct rt5645_priv *rt5645;
 	int ret;
 	unsigned int val;
+	struct gpio_desc *gpiod;
 
 	rt5645 = devm_kzalloc(&i2c->dev, sizeof(struct rt5645_priv),
 				GFP_KERNEL);
@@ -2682,8 +2712,23 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
 	rt5645->i2c = i2c;
 	i2c_set_clientdata(i2c, rt5645);
 
-	if (pdata)
+	if (pdata) {
 		rt5645->pdata = *pdata;
+	} else {
+		if (dmi_check_system(dmi_platform_intel_braswell)) {
+			rt5645->pdata = *rt5645_pdata;
+			gpiod = devm_gpiod_get_index(&i2c->dev, "rt5645", 0);
+
+			if (IS_ERR(gpiod) || gpiod_direction_input(gpiod)) {
+				rt5645->pdata.hp_det_gpio = -1;
+				dev_err(&i2c->dev, "failed to initialize gpiod\n");
+			} else {
+				rt5645->pdata.hp_det_gpio = desc_to_gpio(gpiod);
+				rt5645->pdata.gpio_hp_det_active_high
+						= !gpiod_is_active_low(gpiod);
+			}
+		}
+	}
 
 	rt5645->regmap = devm_regmap_init_i2c(i2c, &rt5645_regmap);
 	if (IS_ERR(rt5645->regmap)) {