To properly have things running after cold boot, define
GPIO regulators. Naming is based on board file.
In the vendor kernel they are enabled in a function
called bt2ws_dcdc_init() if the system is not booted just
to charge the battery.
Signed-off-by: Andreas Kemnade <andreas@xxxxxxxxxxxx>
---
.../boot/dts/ti/omap/omap4-epson-embt2ws.dts | 73 +++++++++++++++++++
1 file changed, 73 insertions(+)
diff --git a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
index 339e52ba3614..d6b0abba19f6 100644
--- a/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
+++ b/arch/arm/boot/dts/ti/omap/omap4-epson-embt2ws.dts
@@ -29,6 +29,42 @@ backlight-right {
power-supply = <&unknown_supply>;
};
+ cb_v18: cb-v18 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&cb_v18_pins>;
+ compatible = "regulator-fixed";
+ regulator-name = "cb_v18";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ cb_v33: cb-v33 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&cb_v33_pins>;
+ compatible = "regulator-fixed";
+ regulator-name = "cb_v33";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ gpio = <&gpio6 30 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ cb-v50 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&cb_v50_pins>;
+ compatible = "regulator-fixed";
+ regulator-name = "cb_v50";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ gpio = <&gpio6 31 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
chosen {
stdout-path = &uart3;
};
@@ -46,6 +82,19 @@ key-lock {
};
};
+ lb_v50: lb-v50 {
+ /* required for many things at the head (probably indirectly) */
+ pinctrl-names = "default";
+ pinctrl-0 = <&lb_v50_pins>;
+ compatible = "regulator-fixed";
+ regulator-name = "lb_v50";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ gpio = <&gpio1 27 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
unknown_supply: unknown-supply {
compatible = "regulator-fixed";
regulator-name = "unknown";
@@ -336,6 +385,24 @@ OMAP4_IOPAD(0x1ca, PIN_OUTPUT | MUX_MODE3) /* gpio25 */
>;
};
+ cb_v18_pins: pinmux-cb-v18-pins {
+ pinctrl-single,pins = <
+ OMAP4_IOPAD(0x1d0, PIN_OUTPUT | MUX_MODE3) /* gpio28 */
+ >;
+ };
+
+ cb_v33_pins: pinmux-cb-v33-pins {
+ pinctrl-single,pins = <
+ OMAP4_IOPAD(0x1d2, PIN_OUTPUT | MUX_MODE3) /* gpio190 */
+ >;
+ };
+
+ cb_v50_pins: pinmux-cb-v50-pins {
+ pinctrl-single,pins = <
+ OMAP4_IOPAD(0x1d4, PIN_OUTPUT | MUX_MODE3) /* gpio191 */
+ >;
+ };
+
gpio_keys_pins: pinmux-gpio-key-pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x56, PIN_INPUT_PULLUP | MUX_MODE3) /* gpio35 */
@@ -387,6 +454,12 @@ OMAP4_IOPAD(0x005c, PIN_OUTPUT | MUX_MODE1)
>;
};
+ lb_v50_pins: pinmux-lb-v50-pins {
+ pinctrl-single,pins = <
+ OMAP4_IOPAD(0x1ce, PIN_OUTPUT | MUX_MODE3) /* gpio27 */
+ >;
+ };
+
mcbsp2_pins: pinmux-mcbsp2-pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x0f6, PIN_INPUT | MUX_MODE0) /* abe_mcbsp2_clkx */
--
2.39.5
