ARM: at91: dt: at91sam9x5: add i2c-gpio pinctrl

i2c-gpio is sometimes used in place of i2c-at91.
This adds the pin muxes for the gpios.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index 8cbcff4..d18aff5 100644 (file)
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -343,6 +343,30 @@
                                        };
                                };
 
+                               i2c_gpio0 {
+                                       pinctrl_i2c_gpio0: i2c_gpio0-0 {
+                                               atmel,pins =
+                                                       <0 30 0x0 0x2   /* PA30 gpio multidrive I2C0 data */
+                                                        0 31 0x0 0x2>; /* PA31 gpio multidrive I2C0 clock */
+                                       };
+                               };
+
+                               i2c_gpio1 {
+                                       pinctrl_i2c_gpio1: i2c_gpio1-0 {
+                                               atmel,pins =
+                                                       <2 0 0x0 0x2    /* PC0 gpio multidrive I2C1 data */
+                                                        2 1 0x0 0x2>;  /* PC1 gpio multidrive I2C1 clock */
+                                       };
+                               };
+
+                               i2c_gpio2 {
+                                       pinctrl_i2c_gpio2: i2c_gpio2-0 {
+                                               atmel,pins =
+                                                       <1 4 0x0 0x2    /* PB4 gpio multidrive I2C2 data */
+                                                        1 5 0x0 0x2>;  /* PB5 gpio multidrive I2C2 clock */
+                                       };
+                               };
+
                                pioA: gpio@fffff400 {
                                        compatible = "atmel,at91sam9x5-gpio", "atmel,at91rm9200-gpio";
                                        reg = <0xfffff400 0x200>;
@@ -583,6 +607,8 @@
                i2c-gpio,delay-us = <2>;        /* ~100 kHz */
                #address-cells = <1>;
                #size-cells = <0>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_i2c_gpio0>;
                status = "disabled";
        };
 
@@ -596,6 +622,8 @@
                i2c-gpio,delay-us = <2>;        /* ~100 kHz */
                #address-cells = <1>;
                #size-cells = <0>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_i2c_gpio1>;
                status = "disabled";
        };
 
@@ -609,6 +637,8 @@
                i2c-gpio,delay-us = <2>;        /* ~100 kHz */
                #address-cells = <1>;
                #size-cells = <0>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_i2c_gpio2>;
                status = "disabled";
        };
 };