The APQ8060 Dragonboard has an Atmel AT24c128 EEPROM and a
Wolfson Micro WM8903 codec connected to its GSBI8 I2C bus.
Add entries for these to the device tree. The interrupt line
from the WM8903 chip is not routed anywhere on this design
so it can not be used.
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
arch/arm/boot/dts/qcom-apq8060-dragonboard.dts | 49 ++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts b/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts
index 2da1413f5720..32730c4742f6 100644
--- a/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts
+++ b/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts
@@ -160,6 +160,19 @@
};
};
+ dragon_gsbi8_i2c_pins: gsbi8_i2c {
+ mux {
+ pins = "gpio64", "gpio65";
+ function = "gsbi8";
+ };
+ pinconf {
+ pins = "gpio64", "gpio65";
+ drive-strength = <16>;
+ /* These have external pull-up 2.2kOhm to 1.8V */
+ bias-disable;
+ };
+ };
+
dragon_gsbi12_i2c_pins: gsbi12_i2c {
mux {
pins = "gpio115", "gpio116";
@@ -368,6 +381,42 @@
};
};
+ gsbi@19800000 {
+ status = "ok";
+ qcom,mode = <GSBI_PROT_I2C>;
+
+ i2c@19880000 {
+ status = "ok";
+ pinctrl-names = "default";
+ pinctrl-0 = <&dragon_gsbi8_i2c_pins>;
+
+ eeprom@52 {
+ /* A 16KiB Platform ID EEPROM on the CPU carrier board */
+ compatible = "atmel,24c128";
+ reg = <0x52>;
+ vcc-supply = <&pm8058_s3>;
+ pagesize = <64>;
+ };
+ wm8903: wm8903@1a {
+ /* This Woolfson Micro device has an unrouted interrupt line */
+ compatible = "wlf,wm8903";
+ reg = <0x1a>;
+
+ AVDD-supply = <&pm8058_l16>;
+ CPVDD-supply = <&pm8058_l16>;
+ DBVDD-supply = <&pm8058_s3>;
+ DCVDD-supply = <&pm8058_l0>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ micdet-cfg = <0>;
+ micdet-delay = <100>;
+ gpio-cfg = <0xffffffff 0xffffffff 0 0xffffffff 0xffffffff>;
+ };
+ };
+ };
+
gsbi@19c00000 {
status = "ok";
qcom,mode = <GSBI_PROT_I2C_UART>;
--
2.9.3
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