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Date: Wed, 29 May 2013 10:55:35 +0200
From: Gabriel Fernandez <gabriel.fernandez.st@...il.com>
To: linux-kernel@...r.kernel.org
Cc: Lee Jones <lee.jones@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>,
Olivier Clergeaud <olivier.clergeaud@...com>,
Gabriel Fernandez <gabriel.fernandez@...com>
Subject: Re: [PATCH 2/3] ARM: u8540: Add Pinctrl Device Tree settings for
uart0, uart2
On 27 May 2013 15:30, Gabriel Fernandez <gabriel.fernandez.st@...il.com> wrote:
> From: Gabriel Fernandez <gabriel.fernandez@...com>
>
> This patch adds pinctrl device tree settings for uart0 and uart2
> for ccu8540 board.
>
> Signed-off-by: Gabriel Fernandez <gabriel.fernandez@...com>
> ---
> arch/arm/boot/dts/ccu8540-pinctrl.dtsi | 77 ++++++++++++++++++++++++
> arch/arm/boot/dts/ccu8540.dts | 7 +++
> arch/arm/boot/dts/dbx5x0.dtsi | 2 +-
> arch/arm/boot/dts/ste-nomadik-pinctrl.dtsi | 95 ++++++++++++++++++++++++++++++
> include/dt-bindings/pinctrl/nomadik.h | 36 +++++++++++
> 5 files changed, 216 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm/boot/dts/ccu8540-pinctrl.dtsi
> create mode 100644 arch/arm/boot/dts/ste-nomadik-pinctrl.dtsi
> create mode 100644 include/dt-bindings/pinctrl/nomadik.h
>
> diff --git a/arch/arm/boot/dts/ccu8540-pinctrl.dtsi b/arch/arm/boot/dts/ccu8540-pinctrl.dtsi
> new file mode 100644
> index 0000000..26e718b
> --- /dev/null
> +++ b/arch/arm/boot/dts/ccu8540-pinctrl.dtsi
> @@ -0,0 +1,77 @@
> +/*
> + * Copyright 2012 ST-Ericsson
> + *
> + * The code contained herein is licensed under the GNU General Public
> + * License. You may obtain a copy of the GNU General Public License
> + * Version 2 or later at the following locations:
> + *
> + * http://www.opensource.org/licenses/gpl-license.html
> + * http://www.gnu.org/copyleft/gpl.html
> + */
> +#include "ste-nomadik-pinctrl.dtsi"
> +
> +&pinctrl_dbx500 {
> + uart0 {
> + uart0_default_mux: uart0_mux {
> + default_mux {
> + ste,function = "u0";
> + ste,pins = "u0_a_1";
> + };
> + };
> +
> + uart0_default_mode: uart0_default {
> + default_cfg1 {
> + ste,pins = "GPIO0", "GPIO2";
> + ste,config = <&in_pu>;
> + };
> +
> + default_cfg2 {
> + ste,pins = "GPIO1", "GPIO3";
> + ste,config = <&out_hi>;
> + };
> + };
> +
> + uart0_sleep_mode: uart0_sleep {
> + sleep_cfg1 {
> + ste,pins = "GPIO0", "GPIO2";
> + ste,config = <&slpm_in_pu>;
> + };
> +
> + sleep_cfg2 {
> + ste,pins = "GPIO1", "GPIO3";
> + ste,config = <&slpm_out_hi>;
> + };
> + };
> + };
> +
> + uart2 {
> + uart2_default_mode: uart2_default {
> + default_mux {
> + ste,function = "u2";
> + ste,pins = "u2txrx_a_1";
> + };
> +
> + default_cfg1 {
> + ste,pins = "GPIO120";
> + ste,config = <&in_pu>;
> + };
> +
> + default_cfg2 {
> + ste,pins = "GPIO121";
> + ste,config = <&out_hi>;
> + };
> + };
> +
> + uart2_sleep_mode: uart2_sleep {
> + sleep_cfg1 {
> + ste,pins = "GPIO120";
> + ste,config = <&slpm_in_pu>;
> + };
> +
> + sleep_cfg2 {
> + ste,pins = "GPIO121";
> + ste,config = <&slpm_out_hi>;
> + };
> + };
> + };
> +};
> diff --git a/arch/arm/boot/dts/ccu8540.dts b/arch/arm/boot/dts/ccu8540.dts
> index 5de9e1e..4f93795 100644
> --- a/arch/arm/boot/dts/ccu8540.dts
> +++ b/arch/arm/boot/dts/ccu8540.dts
> @@ -11,6 +11,7 @@
>
> /dts-v1/;
> #include "dbx5x0.dtsi"
> +#include "ccu8540-pinctrl.dtsi"
>
> / {
> model = "ST-Ericsson U8540 platform with Device Tree";
> @@ -27,6 +28,9 @@
> };
>
i missed
pinctrl {
compatible = "stericsson,db8540-pinctrl";
};
> uart@...20000 {
> + pinctrl-names = "default", "sleep";
> + pinctrl-0 = <&uart0_default_mux>, <&uart0_default_mode>;
> + pinctrl-1 = <&uart0_sleep_mode>;
> status = "okay";
> };
>
> @@ -35,6 +39,9 @@
> };
>
> uart@...07000 {
> + pinctrl-names = "default", "sleep";
> + pinctrl-0 = <&uart2_default_mode>;
> + pinctrl-1 = <&uart2_sleep_mode>;
> status = "okay";
> };
> };
> diff --git a/arch/arm/boot/dts/dbx5x0.dtsi b/arch/arm/boot/dts/dbx5x0.dtsi
> index f85ff85..7507148 100644
> --- a/arch/arm/boot/dts/dbx5x0.dtsi
> +++ b/arch/arm/boot/dts/dbx5x0.dtsi
> @@ -170,7 +170,7 @@
> gpio-bank = <8>;
> };
>
> - pinctrl {
> + pinctrl_dbx500: pinctrl {
> compatible = "stericsson,nmk-pinctrl";
> prcm = <&prcmu>;
> };
> diff --git a/arch/arm/boot/dts/ste-nomadik-pinctrl.dtsi b/arch/arm/boot/dts/ste-nomadik-pinctrl.dtsi
> new file mode 100644
> index 0000000..efddee9
> --- /dev/null
> +++ b/arch/arm/boot/dts/ste-nomadik-pinctrl.dtsi
> @@ -0,0 +1,95 @@
> +/*
> + * Copyright 2012 ST-Ericsson
> + *
> + * The code contained herein is licensed under the GNU General Public
> + * License. You may obtain a copy of the GNU General Public License
> + * Version 2 or later at the following locations:
> + *
> + * http://www.opensource.org/licenses/gpl-license.html
> + * http://www.gnu.org/copyleft/gpl.html
> + */
> +#include <dt-bindings/pinctrl/nomadik.h>
> +
> +/ {
> + in_nopull: in_nopull {
> + ste,input = <INPUT_NOPULL>;
> + };
> +
> + in_pu: input_pull_up {
> + ste,input = <INPUT_PULLUP>;
> + };
> +
> + in_pd: input_pull_down {
> + ste,input = <INPUT_PULLDOWN>;
> + };
> +
> + out_hi: output_high {
> + ste,output = <OUTPUT_HIGH>;
> + };
> +
> + out_lo: output_low {
> + ste,output = <OUTPUT_LOW>;
> + };
> +
> + gpio_out_lo: gpio_output_low {
> + ste,gpio = <GPIOMODE_ENABLED>;
> + ste,output = <OUTPUT_LOW>;
> + };
> +
> + slpm_in_pu: slpm_in_pu {
> + ste,sleep = <SLPM_ENABLED>;
> + ste,sleep-input = <SLPM_INPUT_PULLUP>;
> + ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
> + };
> +
> + slpm_in_wkup_pdis: slpm_in_wkup_pdis {
> + ste,sleep = <SLPM_ENABLED>;
> + ste,sleep-input = <SLPM_DIR_INPUT>;
> + ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
> + ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
> + };
> +
> + slpm_out_lo: slpm_out_lo {
> + ste,sleep = <SLPM_ENABLED>;
> + ste,sleep-output = <SLPM_OUTPUT_LOW>;
> + ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
> + };
> +
> + slpm_out_hi: slpm_out_hi {
> + ste,sleep = <SLPM_ENABLED>;
> + ste,sleep-output = <SLPM_OUTPUT_HIGH>;
> + ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
> + };
> +
> + slpm_out_hi_wkup_pdis: slpm_out_hi_wkup_pdis {
> + ste,sleep = <SLPM_ENABLED>;
> + ste,sleep-output = <SLPM_OUTPUT_HIGH>;
> + ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
> + ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
> + };
> +
> + slpm_out_wkup_pdis: slpm_out_wkup_pdis {
> + ste,sleep = <SLPM_ENABLED>;
> + ste,sleep-output = <SLPM_DIR_OUTPUT>;
> + ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
> + ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
> + };
> +
> + in_wkup_pdis: in_wkup_pdis {
> + ste,sleep-input = <SLPM_DIR_INPUT>;
> + ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
> + ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
> + };
> +
> + out_hi_wkup_pdis: out_hi_wkup_pdis {
> + ste,sleep-output = <SLPM_OUTPUT_HIGH>;
> + ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
> + ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
> + };
> +
> + out_wkup_pdis: out_wkup_pdis {
> + ste,sleep-output = <SLPM_DIR_OUTPUT>;
> + ste,sleep-wakeup = <SLPM_WAKEUP_ENABLE>;
> + ste,sleep-pull-disable = <SLPM_PDIS_DISABLED>;
> + };
> +};
> diff --git a/include/dt-bindings/pinctrl/nomadik.h b/include/dt-bindings/pinctrl/nomadik.h
> new file mode 100644
> index 0000000..638fb32
> --- /dev/null
> +++ b/include/dt-bindings/pinctrl/nomadik.h
> @@ -0,0 +1,36 @@
> +/*
> + * nomadik.h
> + *
> + * Copyright (C) ST-Ericsson SA 2013
> + * Author: Gabriel Fernandez <gabriel.fernandez@...com> for ST-Ericsson.
> + * License terms: GNU General Public License (GPL), version 2
> + */
> +
> +#define INPUT_NOPULL 0
> +#define INPUT_PULLUP 1
> +#define INPUT_PULLDOWN 2
> +
> +#define OUTPUT_LOW 0
> +#define OUTPUT_HIGH 1
> +#define DIR_OUTPUT 2
> +
> +#define SLPM_DISABLED 0
> +#define SLPM_ENABLED 1
> +
> +#define SLPM_INPUT_NOPULL 0
> +#define SLPM_INPUT_PULLUP 1
> +#define SLPM_INPUT_PULLDOWN 2
> +#define SLPM_DIR_INPUT 3
> +
> +#define SLPM_OUTPUT_LOW 0
> +#define SLPM_OUTPUT_HIGH 1
> +#define SLPM_DIR_OUTPUT 2
> +
> +#define SLPM_WAKEUP_DISABLE 0
> +#define SLPM_WAKEUP_ENABLE 1
> +
> +#define GPIOMODE_DISABLED 0
> +#define GPIOMODE_ENABLED 1
> +
> +#define SLPM_PDIS_DISABLED 0
> +#define SLPM_PDIS_ENABLED 1
> --
> 1.8.1.1
>
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