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arm: dts: imx7d-sdb: add spi gpio node

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Add spi gpio node for 74LV595.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Peng Fan 2017-04-13 14:09:51 +08:00 committed by Stefano Babic
parent 896d2e82e6
commit 9880eed8bd
1 changed files with 35 additions and 0 deletions
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35
arch/arm/dts/imx7d-sdb.dts
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@ -16,4 +16,39 @@
reg = <0x80000000 0x80000000>;
};
spi4 {
compatible = "spi-gpio";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_spi1>;
status = "okay";
gpio-sck = <&gpio1 13 0>;
gpio-mosi = <&gpio1 9 0>;
cs-gpios = <&gpio1 12 0>;
num-chipselects = <1>;
#address-cells = <1>;
#size-cells = <0>;
gpio_spi: gpio_spi@0 {
compatible = "fairchild,74hc595";
gpio-controller;
#gpio-cells = <2>;
reg = <0>;
registers-number = <1>;
registers-default = /bits/ 8 <0x74>; /* Enable PERI_3V3, SENSOR_RST_B and HDMI_RST*/
spi-max-frequency = <100000>;
};
};
};
&iomuxc {
imx7d-sdb {
pinctrl_spi1: spi1grp {
fsl,pins = <
MX7D_PAD_GPIO1_IO09__GPIO1_IO9 0x59
MX7D_PAD_GPIO1_IO12__GPIO1_IO12 0x59
MX7D_PAD_GPIO1_IO13__GPIO1_IO13 0x59
>;
};
};
};