From: <nicolas.ferre@microchip.com>
To: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>,
Nicolas Ferre <nicolas.ferre@microchip.com>,
Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Subject: [PATCH] ARM: dts: at91-sama5d27_wlsom1: add i2c recovery
Date: Sun, 17 Jan 2021 19:35:58 +0100 [thread overview]
Message-ID: <20210117183558.5369-1-nicolas.ferre@microchip.com> (raw)
From: Nicolas Ferre <nicolas.ferre@microchip.com>
Add the i2c gpio pinctrls to support the i2c bus recovery on this board.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
---
arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi | 22 +++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi b/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi
index a06700e53e4c..025a78310e3a 100644
--- a/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi
+++ b/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi
@@ -43,14 +43,20 @@ uart6: serial@200 {
&i2c0 {
pinctrl-0 = <&pinctrl_i2c0_default>;
- pinctrl-names = "default";
+ pinctrl-1 = <&pinctrl_i2c0_gpio>;
+ pinctrl-names = "default", "gpio";
+ sda-gpios = <&pioA PIN_PD21 GPIO_ACTIVE_HIGH>;
+ scl-gpios = <&pioA PIN_PD22 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
status = "okay";
};
&i2c1 {
dmas = <0>, <0>;
- pinctrl-names = "default";
+ pinctrl-names = "default", "gpio";
pinctrl-0 = <&pinctrl_i2c1_default>;
+ pinctrl-1 = <&pinctrl_i2c1_gpio>;
+ sda-gpios = <&pioA PIN_PD19 GPIO_ACTIVE_HIGH>;
+ scl-gpios = <&pioA PIN_PD20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
status = "okay";
mcp16502@5b {
@@ -258,12 +264,24 @@ pinctrl_i2c0_default: i2c0_default {
bias-disable;
};
+ pinctrl_i2c0_gpio: i2c0_gpio {
+ pinmux = <PIN_PD21__GPIO>,
+ <PIN_PD22__GPIO>;
+ bias-disable;
+ };
+
pinctrl_i2c1_default: i2c1_default {
pinmux = <PIN_PD19__TWD1>,
<PIN_PD20__TWCK1>;
bias-disable;
};
+ pinctrl_i2c1_gpio: i2c1_gpio {
+ pinmux = <PIN_PD19__GPIO>,
+ <PIN_PD20__GPIO>;
+ bias-disable;
+ };
+
pinctrl_macb0_default: macb0_default {
pinmux = <PIN_PB14__GTXCK>,
<PIN_PB15__GTXEN>,
--
2.30.0
next reply other threads:[~2021-01-17 18:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-17 18:35 nicolas.ferre [this message]
2021-01-21 14:27 ` [PATCH] ARM: dts: at91-sama5d27_wlsom1: add i2c recovery Nicolas Ferre
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