linux-kernel - Re: [PATCH v2 3/3] arm64: dts: rockchip: Add spi1 pins on Quartz64 A

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Message-ID: <acbd0e0a-b194-7b17-148d-49fdd348077e@gmail.com>
Date:   Sat, 27 Nov 2021 16:29:33 +0100
From:   Johan Jonker <jbx6244@...il.com>
To:     Nicolas Frattaroli <frattaroli.nicolas@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/3] arm64: dts: rockchip: Add spi1 pins on Quartz64 A



On 11/27/21 3:19 PM, Nicolas Frattaroli wrote:
> The Quartz64 Model A has the SPI pins broken out on its pin
> header. The actual pins being used though are not the m0
> variant, but the m1 variant, which also lacks the cs1 pin.
> 
> This commit overrides pinctrl-0 accordingly for this board.
> 
> spi1 is intentionally left disabled, as anyone wishing to add
> SPI devices needs to edit the dts anyway, and the pins are more
> useful as GPIOs for the rest of the users.
> 
> Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@...il.com>
> ---
>  arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> index 4d4b2a301b1a..166399b7f13f 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> @@ -509,6 +509,11 @@ &spdif {
>  	status = "okay";
>  };
>  
> +&spi1 {

> +	pinctrl-names = "default";

With the removal off pinctrl-1 the pinctrl-names property is already
correctly defined.

+	spi1: spi@...20000 {
+		compatible = "rockchip,rk3568-spi", "rockchip,rk3066-spi";
+		reg = <0x0 0xfe620000 0x0 0x1000>;
+		interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru CLK_SPI1>, <&cru PCLK_SPI1>;
+		clock-names = "spiclk", "apb_pclk";
+		dmas = <&dmac0 22>, <&dmac0 23>;
+		dma-names = "tx", "rx";
+		pinctrl-names = "default";
+		pinctrl-0 = <&spi1m0_cs0 &spi1m0_cs1 &spi1m0_pins>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};

> +	pinctrl-0 = <&spi1m1_cs0 &spi1m1_pins>;
> +};
> +
>  &tsadc {
>  	/* tshut mode 0:CRU 1:GPIO */
>  	rockchip,hw-tshut-mode = <1>;
>