ARM: u8540: Add Pinctrl Device Tree settings for uart0, uart2

This patch adds pinctrl device tree settings for uart0 and uart2
for ccu8540 board.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/ccu8540-pinctrl.dtsi

@@ -0,0 +1,81 @@
+/*
+ * Copyright 2012 ST-Ericsson
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#include "ste-nomadik-pinctrl.dtsi"
+
+/ {
+	soc {
+		pinctrl {
+			uart0 {
+				uart0_default_mux: uart0_mux {
+					default_mux {
+						ste,function = "u0";
+						ste,pins = "u0_a_1";
+					};
+				};
+
+				uart0_default_mode: uart0_default {
+					default_cfg1 {
+						ste,pins = "GPIO0", "GPIO2";
+						ste,config = <&in_pu>;
+					};
+
+					default_cfg2 {
+						ste,pins = "GPIO1", "GPIO3";
+						ste,config = <&out_hi>;
+					};
+				};
+
+				uart0_sleep_mode: uart0_sleep {
+					sleep_cfg1 {
+						ste,pins = "GPIO0", "GPIO2";
+						ste,config = <&slpm_in_pu>;
+					};
+
+					sleep_cfg2 {
+						ste,pins = "GPIO1", "GPIO3";
+						ste,config = <&slpm_out_hi>;
+					};
+				};
+			};
+
+			uart2 {
+				uart2_default_mode: uart2_default {
+					default_mux {
+						ste,function = "u2";
+						ste,pins = "u2txrx_a_1";
+					};
+
+					default_cfg1 {
+						ste,pins = "GPIO120";
+						ste,config = <&in_pu>;
+					};
+
+					default_cfg2 {
+						ste,pins = "GPIO121";
+						ste,config = <&out_hi>;
+					};
+				};
+
+				uart2_sleep_mode: uart2_sleep {
+					sleep_cfg1 {
+						ste,pins = "GPIO120";
+						ste,config = <&slpm_in_pu>;
+					};
+
+					sleep_cfg2 {
+						ste,pins = "GPIO121";
+						ste,config = <&slpm_out_hi>;
+					};
+				};
+			};
+		};
+	};
+};

arch/arm/boot/dts/ccu8540.dts

@@ -11,6 +11,7 @@
 
 /dts-v1/;
 #include "dbx5x0.dtsi"
+#include "ccu8540-pinctrl.dtsi"
 
 / {
 	model = "ST-Ericsson U8540 platform with Device Tree";
@@ -21,12 +22,19 @@
 	};
 
 	soc {
+		pinctrl {
+			compatible = "stericsson,db8540-pinctrl";
+		};
+
 		prcmu@80157000 {
 			reg = <0x80157000 0x2000>, <0x801b0000 0x8000>, <0x801b8000 0x3000>;
 			reg-names = "prcmu", "prcmu-tcpm", "prcmu-tcdm";
 		};
 
 		uart@80120000 {
+			pinctrl-names = "default", "sleep";
+			pinctrl-0 = <&uart0_default_mux>, <&uart0_default_mode>;
+			pinctrl-1 = <&uart0_sleep_mode>;
 			status = "okay";
 		};
 
@@ -35,6 +43,9 @@
 		};
 
 		uart@80007000 {
+			pinctrl-names = "default", "sleep";
+			pinctrl-0 = <&uart2_default_mode>;
+			pinctrl-1 = <&uart2_sleep_mode>;
 			status = "okay";
 		};
 	};

arch/arm/boot/dts/ste-nomadik-pinctrl.dtsi

@@ -0,0 +1,95 @@
+/*
+ * Copyright 2012 ST-Ericsson
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#include <dt-bindings/pinctrl/nomadik.h>
+
+/ {
+	in_nopull: in_nopull {
+		ste,input = <INPUT_NOPULL>;
+	};
+
+	in_pu: input_pull_up {
+		ste,input = <INPUT_PULLUP>;
+	};
+
+	in_pd: input_pull_down {
+		ste,input = <INPUT_PULLDOWN>;
+	};
+
+	out_hi: output_high {
+		ste,output = <OUTPUT_HIGH>;
+	};
+
+	out_lo: output_low {
+		ste,output = <OUTPUT_LOW>;
+	};
+
+	gpio_out_lo: gpio_output_low {
+		ste,gpio = <GPIOMODE_ENABLED>;
+		ste,output = <OUTPUT_LOW>;
+	};
+
+	slpm_in_pu: slpm_in_pu {
+		ste,sleep = <SLPM_ENABLED>;
+		ste,sleep-input = <SLPM_INPUT_PULLUP>;
+		ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+	};
+
+	slpm_in_wkup_pdis: slpm_in_wkup_pdis {
+		ste,sleep = <SLPM_ENABLED>;
+		ste,sleep-input = <SLPM_DIR_INPUT>;
+		ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+		ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+	};
+
+	slpm_out_lo: slpm_out_lo {
+		ste,sleep = <SLPM_ENABLED>;
+		ste,sleep-output = <SLPM_OUTPUT_LOW>;
+		ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+	};
+
+	slpm_out_hi: slpm_out_hi {
+		ste,sleep = <SLPM_ENABLED>;
+		ste,sleep-output = <SLPM_OUTPUT_HIGH>;
+		ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+	};
+
+	slpm_out_hi_wkup_pdis: slpm_out_hi_wkup_pdis {
+		ste,sleep = <SLPM_ENABLED>;
+		ste,sleep-output = <SLPM_OUTPUT_HIGH>;
+		ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+		ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+	};
+
+	slpm_out_wkup_pdis: slpm_out_wkup_pdis {
+		ste,sleep = <SLPM_ENABLED>;
+		ste,sleep-output = <SLPM_DIR_OUTPUT>;
+		ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+		ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+	};
+
+	in_wkup_pdis: in_wkup_pdis {
+		ste,sleep-input = <SLPM_DIR_INPUT>;
+		ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+		ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+	};
+
+	out_hi_wkup_pdis: out_hi_wkup_pdis {
+		ste,sleep-output = <SLPM_OUTPUT_HIGH>;
+		ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+		ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+	};
+
+	out_wkup_pdis: out_wkup_pdis {
+		ste,sleep-output = <SLPM_DIR_OUTPUT>;
+		ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
+		ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
+	};
+};

include/dt-bindings/pinctrl/nomadik.h

@@ -0,0 +1,36 @@
+/*
+ * nomadik.h
+ *
+ * Copyright (C) ST-Ericsson SA 2013
+ * Author: Gabriel Fernandez <gabriel.fernandez@st.com> for ST-Ericsson.
+ * License terms:  GNU General Public License (GPL), version 2
+ */
+
+#define INPUT_NOPULL		0
+#define INPUT_PULLUP		1
+#define INPUT_PULLDOWN		2
+
+#define OUTPUT_LOW		0
+#define OUTPUT_HIGH		1
+#define DIR_OUTPUT		2
+
+#define SLPM_DISABLED		0
+#define SLPM_ENABLED		1
+
+#define SLPM_INPUT_NOPULL	0
+#define SLPM_INPUT_PULLUP	1
+#define SLPM_INPUT_PULLDOWN	2
+#define SLPM_DIR_INPUT		3
+
+#define SLPM_OUTPUT_LOW		0
+#define SLPM_OUTPUT_HIGH	1
+#define SLPM_DIR_OUTPUT		2
+
+#define SLPM_WAKEUP_DISABLE	0
+#define SLPM_WAKEUP_ENABLE	1
+
+#define GPIOMODE_DISABLED	0
+#define GPIOMODE_ENABLED	1
+
+#define SLPM_PDIS_DISABLED	0
+#define SLPM_PDIS_ENABLED	1