linux-kernel - [PATCH] ARM64: dts: marvell: cn9310: Use appropriate label for spi1 pins

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Message-ID: <20230820225126.561304-1-chris.packham@alliedtelesis.co.nz>
Date:   Mon, 21 Aug 2023 10:51:25 +1200
From:   Chris Packham <chris.packham@...iedtelesis.co.nz>
To:     andrew@...n.ch, gregory.clement@...tlin.com,
        sebastian.hesselbarth@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        kostap@...vell.com
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH] ARM64: dts: marvell: cn9310: Use appropriate label for spi1 pins

Both the CN9130-CRB and CN9130-DB use the SPI1 interface but had the
pinctrl node labelled as "cp0_spi0_pins". Use the label "cp0_spi1_pins"
and update the node name to "cp0-spi-pins-1" to avoid confusion with the
pinctrl options for SPI0.

Fixes: 4c43a41e5b8c ("arm64: dts: cn913x: add device trees for topology B boards")
Fixes: 5c0ee54723f3 ("arm64: dts: add support for Marvell cn9130-crb platform")
Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---

Notes:
    We noticed this while tracking down a U-Boot bug on one of our
    platforms. This mislabeling had been copied and we ended up using the
    label when configuring SPI0 which had the nasty side effect of
    reconfiguring the NAND/DEV pins into SPI1 mode when SPI0 was probed.
    
    It probably went unnoticed because none of the CN9130 platforms
    supported in upstream U-Boot use NAND.

 arch/arm64/boot/dts/marvell/cn9130-crb.dtsi | 4 ++--
 arch/arm64/boot/dts/marvell/cn9130-db.dtsi  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/marvell/cn9130-crb.dtsi b/arch/arm64/boot/dts/marvell/cn9130-crb.dtsi
index 32cfb3e2efc3..47d45ff3d6f5 100644
--- a/arch/arm64/boot/dts/marvell/cn9130-crb.dtsi
+++ b/arch/arm64/boot/dts/marvell/cn9130-crb.dtsi
@@ -120,7 +120,7 @@ cp0_sdhci_pins: cp0-sdhi-pins-0 {
 				       "mpp59", "mpp60", "mpp61";
 			marvell,function = "sdio";
 		};
-		cp0_spi0_pins: cp0-spi-pins-0 {
+		cp0_spi1_pins: cp0-spi-pins-1 {
 			marvell,pins = "mpp13", "mpp14", "mpp15", "mpp16";
 			marvell,function = "spi1";
 		};
@@ -170,7 +170,7 @@ &cp0_sdhci0 {
 
 &cp0_spi1 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&cp0_spi0_pins>;
+	pinctrl-0 = <&cp0_spi1_pins>;
 	reg = <0x700680 0x50>,		/* control */
 	      <0x2000000 0x1000000>;	/* CS0 */
 	status = "okay";
diff --git a/arch/arm64/boot/dts/marvell/cn9130-db.dtsi b/arch/arm64/boot/dts/marvell/cn9130-db.dtsi
index c7de1ea0d470..6eb6a175de38 100644
--- a/arch/arm64/boot/dts/marvell/cn9130-db.dtsi
+++ b/arch/arm64/boot/dts/marvell/cn9130-db.dtsi
@@ -307,7 +307,7 @@ &cp0_sdhci0 {
 &cp0_spi1 {
 	status = "disabled";
 	pinctrl-names = "default";
-	pinctrl-0 = <&cp0_spi0_pins>;
+	pinctrl-0 = <&cp0_spi1_pins>;
 	reg = <0x700680 0x50>;
 
 	flash@0 {
@@ -371,7 +371,7 @@ cp0_sdhci_pins: cp0-sdhi-pins-0 {
 				       "mpp59", "mpp60", "mpp61";
 			marvell,function = "sdio";
 		};
-		cp0_spi0_pins: cp0-spi-pins-0 {
+		cp0_spi1_pins: cp0-spi-pins-1 {
 			marvell,pins = "mpp13", "mpp14", "mpp15", "mpp16";
 			marvell,function = "spi1";
 		};
-- 
2.41.0