linux-kernel - [PATCH 05/10] arch: arm: dts: bletchley: switch to spi-gpio for spi2

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Date:   Fri, 11 Feb 2022 09:43:42 +0800
From:   Potin Lai <potin.lai@...ntatw.com>
To:     Rob Herring <robh+dt@...nel.org>, Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>
Cc:     Patrick Williams <patrick@...cx.xyz>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Potin Lai <potin.lai@...ntatw.com>
Subject: [PATCH 05/10] arch: arm: dts: bletchley: switch to spi-gpio for spi2

Switch to spi-gpio driver to avoid unstable signal issue with EVT HW

Signed-off-by: Potin Lai <potin.lai@...ntatw.com>
---
 arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts
index b01f1e7adb81..3c54e4a892c9 100644
--- a/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-bletchley.dts
@@ -227,8 +227,16 @@
 
 &spi2 {
 	status = "okay";
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_spi2_default>;
+
+	compatible = "spi-gpio";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	gpio-sck = <&gpio0 ASPEED_GPIO(X, 3) GPIO_ACTIVE_HIGH>;
+	gpio-mosi = <&gpio0 ASPEED_GPIO(X, 4) GPIO_ACTIVE_HIGH>;
+	gpio-miso = <&gpio0 ASPEED_GPIO(X, 5) GPIO_ACTIVE_HIGH>;
+	num-chipselects = <1>;
+	cs-gpios = <&gpio0 ASPEED_GPIO(X, 0) GPIO_ACTIVE_LOW>;
 
 	flash@0 {
 		status = "okay";
-- 
2.17.1