omap3: Copy twl4030 device tree from Linux 4.9.y stable
Many OMAP3 boards use a TWL4030 PMIC. This brings in the related
device tree information for common TWL4030 and TWL4030 with OMAP3.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/arch/arm/dts/twl4030_omap3.dtsi b/arch/arm/dts/twl4030_omap3.dtsi
new file mode 100644
index 0000000..f9aaa53
--- /dev/null
+++ b/arch/arm/dts/twl4030_omap3.dtsi
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2013 Linaro, Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+&twl {
+ pinctrl-names = "default";
+ pinctrl-0 = <&twl4030_pins &twl4030_vpins>;
+};
+
+&omap3_pmx_core {
+ /*
+ * On most OMAP3 platforms, the twl4030 IRQ line is connected
+ * to the SYS_NIRQ line on OMAP. Therefore, configure the
+ * defaults for the SYS_NIRQ pin here.
+ */
+ twl4030_pins: pinmux_twl4030_pins {
+ pinctrl-single,pins = <
+ OMAP3_CORE1_IOPAD(0x21e0, PIN_INPUT_PULLUP | PIN_OFF_WAKEUPENABLE | MUX_MODE0) /* sys_nirq.sys_nirq */
+ >;
+ };
+};
+
+/*
+ * If your board is not using the I2C4 pins with twl4030, then don't include
+ * this file. For proper idle mode signaling with sys_clkreq and sys_off_mode
+ * pins we need to configure I2C4, or else use the legacy sys_nvmode1 and
+ * sys_nvmode2 signaling.
+ */
+&omap3_pmx_wkup {
+ twl4030_vpins: pinmux_twl4030_vpins {
+ pinctrl-single,pins = <
+ OMAP3_WKUP_IOPAD(0x2a00, PIN_INPUT | MUX_MODE0) /* i2c4_scl.i2c4_scl */
+ OMAP3_WKUP_IOPAD(0x2a02, PIN_INPUT | MUX_MODE0) /* i2c4_sda.i2c4_sda */
+ OMAP3_WKUP_IOPAD(0x2a06, PIN_OUTPUT | MUX_MODE0) /* sys_clkreq.sys_clkreq */
+ OMAP3_WKUP_IOPAD(0x2a18, PIN_OUTPUT | MUX_MODE0) /* sys_off_mode.sys_off_mode */
+ >;
+ };
+};