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Date: Wed, 23 Apr 2014 00:05:41 +0200 From: Nicolas Ferre <nicolas.ferre@...el.com> To: <linux-arm-kernel@...ts.infradead.org>, Ludovic Desroches <ludovic.desroches@...el.com> CC: Boris BREZILLON <boris.brezillon@...e-electrons.com>, Alexandre Belloni <alexandre.belloni@...e-electrons.com>, <linux-kernel@...r.kernel.org>, <wsa@...-dreams.de>, Nicolas Ferre <nicolas.ferre@...el.com> Subject: [PATCH] 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@...el.com> --- 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@...14000 { + pinctrl-0 = <&pinctrl_i2c0_pu>; status = "okay"; }; @@ -102,6 +103,7 @@ i2c2: i2c@...1c000 { dmas = <0>, <0>; /* Do not use DMA for i2c2 */ + pinctrl-0 = <&pinctrl_i2c2_pu>; status = "okay"; }; @@ -116,6 +118,18 @@ pinctrl@...ff200 { 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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