From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawn.guo@linaro.org (Shawn Guo) Date: Thu, 28 Jun 2012 11:44:58 +0800 Subject: [PATCH 02/11] ARM: dts: mxs: add hog-gpios for imx23-evk and imx28-evk In-Reply-To: <1340855107-4664-1-git-send-email-shawn.guo@linaro.org> References: <1340855107-4664-1-git-send-email-shawn.guo@linaro.org> Message-ID: <1340855107-4664-3-git-send-email-shawn.guo@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Before gpio_request can directly ask pinctrl system to configure the requested pin into gpio mode, we use "hog" entry (pinctrl state of pin controller itself) to configure gpios. Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx23-evk.dts | 17 +++++++++++++++++ arch/arm/boot/dts/imx28-evk.dts | 21 +++++++++++++++++++++ 2 files changed, 38 insertions(+), 0 deletions(-) diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts index 70bffa9..6a0912b 100644 --- a/arch/arm/boot/dts/imx23-evk.dts +++ b/arch/arm/boot/dts/imx23-evk.dts @@ -30,6 +30,23 @@ wp-gpios = <&gpio1 30 0>; status = "okay"; }; + + pinctrl at 80018000 { + pinctrl-names = "default"; + pinctrl-0 = <&hog_pins_a>; + + hog_pins_a: hog-gpios at 0 { + reg = <0>; + fsl,pinmux-ids = < + 0x1123 /* MX23_PAD_LCD_RESET__GPIO_1_18 */ + 0x11d3 /* MX23_PAD_PWM3__GPIO_1_29 */ + 0x11e3 /* MX23_PAD_PWM4__GPIO_1_30 */ + >; + fsl,drive-strength = <0>; + fsl,voltage = <1>; + fsl,pull-up = <0>; + }; + }; }; apbx at 80040000 { diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts index 319c75a..505ae5e 100644 --- a/arch/arm/boot/dts/imx28-evk.dts +++ b/arch/arm/boot/dts/imx28-evk.dts @@ -44,6 +44,27 @@ wp-gpios = <&gpio0 28 0>; status = "okay"; }; + + pinctrl at 80018000 { + pinctrl-names = "default"; + pinctrl-0 = <&hog_pins_a>; + + hog_pins_a: hog-gpios at 0 { + reg = <0>; + fsl,pinmux-ids = < + 0x20d3 /* MX28_PAD_SSP1_CMD__GPIO_2_13 */ + 0x20f3 /* MX28_PAD_SSP1_DATA3__GPIO_2_15 */ + 0x40d3 /* MX28_PAD_ENET0_RX_CLK__GPIO_4_13 */ + 0x20c3 /* MX28_PAD_SSP1_SCK__GPIO_2_12 */ + 0x31c3 /* MX28_PAD_PWM3__GPIO_3_28 */ + 0x31e3 /* MX28_PAD_LCD_RESET__GPIO_3_30 */ + 0x3053 /* MX28_PAD_AUART1_TX__GPIO_3_5 */ + >; + fsl,drive-strength = <0>; + fsl,voltage = <1>; + fsl,pull-up = <0>; + }; + }; }; apbx at 80040000 { -- 1.7.5.4