[PATCH 11/12] ARM: dts: mmp3-dell-ariel: Replace SSP2 with spi-gpio

Lubomir Rintel
2021-01-21T03:45:09Z

The firmware leaves the pins in GPIO mode. Until we have a proper pinmux
driver hooked on we just need to bitbang SPI. No big deal, this is just
used for the power button and performance is not important.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
---
arch/arm/boot/dts/mmp3-dell-ariel.dts | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/mmp3-dell-ariel.dts b/arch/arm/boot/dts/mmp3-dell-ariel.dts
index c4a6bd876d849..fe6df364a9eb6 100644
--- a/arch/arm/boot/dts/mmp3-dell-ariel.dts
+++ b/arch/arm/boot/dts/mmp3-dell-ariel.dts
@@ -30,6 +30,17 @@ memory@0 {
reg = <0x0 0x80000000>;
device_type = "memory";
};
+
+ ec_input_spi: spi {
+ compatible = "spi-gpio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ num-chipselects = <0>;
+ sck-gpios = <&gpio 55 GPIO_ACTIVE_HIGH>;
+ miso-gpios = <&gpio 57 GPIO_ACTIVE_HIGH>;
+ mosi-gpios = <&gpio 58 GPIO_ACTIVE_HIGH>;
+ };
};

&uart3 {
@@ -118,7 +129,7 @@ firmware-flash@0 {
};
};

-&ssp2 {
+&ec_input_spi {
status = "okay";
cs-gpios = <&gpio 56 GPIO_ACTIVE_LOW>;