linux-kernel - [PATCH v2 2/2] arm64: dts: rockchip: Enable SPI1 on Ficus

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Date:   Fri, 17 May 2019 09:36:25 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     heiko@...ech.de
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        ezequiel@...labora.com, tom@...rs.com, dev@...rs.com,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH v2 2/2] arm64: dts: rockchip: Enable SPI1 on Ficus

Enable SPI1 exposed on both Low and High speed expansion connectors
of Ficus. SPI1 has 3 different chip selects wired as below:

CS0 - Serial Flash (unpopulated)
CS1 - Low Speed expansion
CS2 - High Speed expansion

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---

Changes in v2:

* Used pin constants instead of hardcoding cs-gpios

 arch/arm64/boot/dts/rockchip/rk3399-ficus.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-ficus.dts b/arch/arm64/boot/dts/rockchip/rk3399-ficus.dts
index 027d428917b8..9af02d859dcd 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-ficus.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-ficus.dts
@@ -146,6 +146,12 @@
 	};
 };
 
+&spi1 {
+	/* On both Low speed and High speed expansion */
+	cs-gpios = <0>, <&gpio4 RK_PA6 0>, <&gpio4 RK_PA7 0>;
+	status = "okay";
+};
+
 &usbdrd_dwc3_0 {
 	dr_mode = "host";
 };
-- 
2.17.1