ARM: at91: add pull-up to i2c[02] on SAMA5D3 Xplained

As there are no pull-up resistors on the board itself it can be useful to
use the SoC pad pull-up to be able to easily connect usual i2c devices.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

diff --git a/arch/arm/boot/dts/at91-sama5d3_xplained.dts b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
index ce1375595e5f27117c37881bcafa5fc5805b1455..ff8a159bb600c8d5aadf6e350df0a4fdaa5a9f6e 100644 (file)
--- a/arch/arm/boot/dts/at91-sama5d3_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
@@ -43,6 +43,7 @@
                        };
 
                        i2c0: i2c@f0014000 {
+                               pinctrl-0 = <&pinctrl_i2c0_pu>;
                                status = "okay";
                        };
 
@@ -102,6 +103,7 @@
 
                        i2c2: i2c@f801c000 {
                                dmas = <0>, <0>;        /* Do not use DMA for i2c2 */
+                               pinctrl-0 = <&pinctrl_i2c2_pu>;
                                status = "okay";
                        };
 
@@ -116,6 +118,18 @@
 
                        pinctrl@fffff200 {
                                board {
+                                       pinctrl_i2c0_pu: i2c0_pu {
+                                               atmel,pins =
+                                                       <AT91_PIOA 30 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>,
+                                                       <AT91_PIOA 31 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
+                                       };
+
+                                       pinctrl_i2c2_pu: i2c2_pu {
+                                               atmel,pins =
+                                                       <AT91_PIOA 18 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>,
+                                                       <AT91_PIOA 19 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>;
+                                       };
+
                                        pinctrl_mmc0_cd: mmc0_cd {
                                                atmel,pins =
                                                        <AT91_PIOE 0 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;