From: Nicolas Ferre <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>,
Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Subject: Re: [PATCH] ARM: dts: at91-sama5d27_wlsom1: add i2c recovery
Date: Thu, 21 Jan 2021 15:27:14 +0100 [thread overview]
Message-ID: <6b8db824-bd2a-ebfa-4af6-261aa6d985bc@microchip.com> (raw)
In-Reply-To: <20210117183558.5369-1-nicolas.ferre@microchip.com>
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
prev parent reply other threads:[~2021-01-21 14:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-17 18:35 [PATCH] ARM: dts: at91-sama5d27_wlsom1: add i2c recovery nicolas.ferre
2021-01-21 14:27 ` Nicolas Ferre [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6b8db824-bd2a-ebfa-4af6-261aa6d985bc@microchip.com \
--to=nicolas.ferre@microchip.com \
--cc=alexandre.belloni@bootlin.com \
--cc=codrin.ciubotariu@microchip.com \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ludovic.desroches@microchip.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).