[PATCH] ARM: olinuxino: Add gpio-led support
From: Shawn Guo <hidden>
Date: 2012-08-22 03:24:13
On Mon, Aug 20, 2012 at 10:43:15PM -0300, Fabio Estevam wrote:
From: Fabio Estevam <redacted> Olinuxino has a LED connected to MX23_PAD_SSP1_DETECT__GPIO_2_1 pin. Since mmc0_4bit_pins_a defines MX23_PAD_SSP1_DETECT as SSP function, create a new mmc0_4bit_pins_b.
mmc0_4bit_pins_b should be used where there is same number of pins in the group as mmc0_4bit_pins_a but with a different pinmux option. I think we drop MX23_PAD_SSP1_DETECT__SSP1_DETECT from mmc0_4bit_pins_a and change the current mmc0_4bit_pins_a users to have it set up in hog, so that mmc0_4bit_pins_a becomes more generic.
quoted hunk ↗ jump to hunk
Signed-off-by: Fabio Estevam <redacted> --- arch/arm/boot/dts/imx23-olinuxino.dts | 28 +++++++++++++++++++++++++++- arch/arm/boot/dts/imx23.dtsi | 15 +++++++++++++++ 2 files changed, 42 insertions(+), 1 deletion(-)diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts index a286873..dece3fe 100644 --- a/arch/arm/boot/dts/imx23-olinuxino.dts +++ b/arch/arm/boot/dts/imx23-olinuxino.dts@@ -27,10 +27,25 @@ ssp0: ssp at 80010000 { compatible = "fsl,imx23-mmc"; pinctrl-names = "default"; - pinctrl-0 = <&mmc0_4bit_pins_a &mmc0_pins_fixup>; + pinctrl-0 = <&mmc0_4bit_pins_b &mmc0_pins_fixup>; bus-width = <4>; status = "okay"; }; + + pinctrl at 80018000 { + pinctrl-names = "default"; + pinctrl-0 = <&hog_pins_a>; + + hog_pins_a: hog-gpios at 0 {
I suggest to have it be:
hog_pins: hog at 0 {
because I see we will probably need to set up some non-gpio pins here
too.
--
Regards,
Shawn
quoted hunk ↗ jump to hunk
+ reg = <0>; + fsl,pinmux-ids = < + 0x2013 /* MX23_PAD_SSP1_DETECT__GPIO_2_1 */ + >; + fsl,drive-strength = <0>; + fsl,voltage = <1>; + fsl,pull-up = <0>; + }; + }; }; apbx at 80040000 {@@ -47,4 +62,15 @@ }; }; }; + + leds { + compatible = "gpio-leds"; + + user { + label = "green"; + gpios = <&gpio2 1 0>; + linux,default-trigger = "default-on"; + default-state = "on"; + }; + }; };diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi index 9700872..a8b423a 100644 --- a/arch/arm/boot/dts/imx23.dtsi +++ b/arch/arm/boot/dts/imx23.dtsi@@ -202,6 +202,21 @@ fsl,pull-up = <1>; }; + mmc0_4bit_pins_b: mmc0-4bit_b at 0 { + reg = <0>; + fsl,pinmux-ids = < + 0x2020 /* MX23_PAD_SSP1_DATA0__SSP1_DATA0 */ + 0x2030 /* MX23_PAD_SSP1_DATA1__SSP1_DATA1 */ + 0x2040 /* MX23_PAD_SSP1_DATA2__SSP1_DATA2 */ + 0x2050 /* MX23_PAD_SSP1_DATA3__SSP1_DATA3 */ + 0x2000 /* MX23_PAD_SSP1_CMD__SSP1_CMD */ + 0x2060 /* MX23_PAD_SSP1_SCK__SSP1_SCK */ + >; + fsl,drive-strength = <1>; + fsl,voltage = <1>; + fsl,pull-up = <1>; + }; + mmc0_8bit_pins_a: mmc0-8bit at 0 { reg = <0>; fsl,pinmux-ids = <-- 1.7.9.5