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 <[email protected]>
---
arch/arm/boot/dts/at91-sama5d3_xplained.dts | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/at91-sama5d3_xplained.dts b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
index ce1375595e5f..ff8a159bb600 100644
--- 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>;
--
1.8.2.2