* [PATCH] ARM: dts: at91-sama5d27_wlsom1: add i2c recovery
@ 2021-01-17 18:35 nicolas.ferre
2021-01-21 14:27 ` Nicolas Ferre
0 siblings, 1 reply; 2+ messages in thread
From: nicolas.ferre @ 2021-01-17 18:35 UTC (permalink / raw)
To: Alexandre Belloni, Ludovic Desroches
Cc: linux-kernel, linux-arm-kernel, devicetree, Nicolas Ferre,
Codrin Ciubotariu
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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ARM: dts: at91-sama5d27_wlsom1: add i2c recovery
2021-01-17 18:35 [PATCH] ARM: dts: at91-sama5d27_wlsom1: add i2c recovery nicolas.ferre
@ 2021-01-21 14:27 ` Nicolas Ferre
0 siblings, 0 replies; 2+ messages in thread
From: Nicolas Ferre @ 2021-01-21 14:27 UTC (permalink / raw)
To: Alexandre Belloni, Ludovic Desroches
Cc: linux-kernel, linux-arm-kernel, devicetree, Codrin Ciubotariu
On 17/01/2021 at 19:35, nicolas.ferre@microchip.com wrote:
> 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>
added to at91-dt.
Regards,
Nicolas
> ---
> 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>,
>
--
Nicolas Ferre
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-01-17 18:35 [PATCH] ARM: dts: at91-sama5d27_wlsom1: add i2c recovery nicolas.ferre
2021-01-21 14:27 ` Nicolas Ferre
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