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ipq40xx: dts: convert WIA3300-20 SPI chipselect to hardware mode

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On ipq40xx platform, some specific GPIO can be configured as hardware
controlled SPI CS pin. This commit is an example of how to convert the
chipselect pin to the hardware CS mode.

Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/20478
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Shiji Yang 2025-10-21 12:06:04 +08:00 • committed by Hauke Mehrtens
parent c16d83184b
commit 7bbbe77504
1 changed files with 1 additions and 11 deletions
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12
target/linux/ipq40xx/files-6.12/arch/arm/boot/dts/qcom/qcom-ipq4019-wia3300-20.dts
View file

@ -126,8 +126,6 @@
pinctrl-0 = <&spi0_pins>;
pinctrl-names = "default";
cs-gpios = <&tlmm 12 GPIO_ACTIVE_LOW>;
flash@0 {
compatible = "jedec,spi-nor";
spi-max-frequency = <24000000>;
@ -398,19 +396,11 @@
spi0_pins: spi0_pinmux {
blsp_spi0 {
pins = "gpio13", "gpio14", "gpio15";
pins = "gpio12", "gpio13", "gpio14", "gpio15";
function = "blsp_spi0";
drive-strength = <4>;
bias-disable;
};
gpio {
pins = "gpio12";
function = "gpio";
drive-strength = <4>;
bias-disable;
output-high;
};
};
};