Messages in this thread Patch in this message | | | From | Maxime Ripard <> | Subject | [PATCH 2/6] ARM: sun5i: chip: add a node for the w1 gpio controller | Date | Mon, 17 Oct 2016 13:48:59 +0200 |
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From: Antoine Tenart <antoine.tenart@free-electrons.com>
The CHIP uses a 1-Wire bus to discover the DIPs. Enable the bus in the DT.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> --- arch/arm/boot/dts/sun5i-r8-chip.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/sun5i-r8-chip.dts b/arch/arm/boot/dts/sun5i-r8-chip.dts index e616084b9495..059d86865b73 100644 --- a/arch/arm/boot/dts/sun5i-r8-chip.dts +++ b/arch/arm/boot/dts/sun5i-r8-chip.dts @@ -81,6 +81,13 @@ pinctrl-0 = <&chip_wifi_reg_on_pin>; reset-gpios = <&pio 2 19 GPIO_ACTIVE_LOW>; /* PC19 */ }; + + onewire { + compatible = "w1-gpio"; + gpios = <&pio 3 2 GPIO_ACTIVE_HIGH>; /* PD2 */ + pinctrl-names = "default"; + pinctrl-0 = <&chip_w1_pin>; + }; }; &be0 { @@ -181,6 +188,13 @@ allwinner,drive = <SUN4I_PINCTRL_10_MA>; allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; }; + + chip_w1_pin: chip_w1_pin@0 { + allwinner,pins = "PD2"; + allwinner,function = "gpio_in"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; + }; }; ®_dcdc2 { -- git-series 0.8.10
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