linux-kernel - [PATCH 3/6] MIPS: NI 169445: Fix NAND GPIOs

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Date:   Wed, 08 Nov 2023 15:33:51 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Aaro Koskinen <aaro.koskinen@....fi>,
        Janusz Krzysztofik <jmkrzyszt@...il.com>,
        Tony Lindgren <tony@...mide.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Ben Dooks <ben.dooks@...ethink.co.uk>
Cc:     linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-mips@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 3/6] MIPS: NI 169445: Fix NAND GPIOs

This changes the GPIOs defined in the device tree to recommended
practice, which is also what the Linux NAND GPIO driver is actually
using.

In the process, fix up the CE and WP lines to be active low, as is
required for proper hardware description.

Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
 arch/mips/boot/dts/ni/169445.dts | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/mips/boot/dts/ni/169445.dts b/arch/mips/boot/dts/ni/169445.dts
index 5389ef46c480..3e7b46d5072c 100644
--- a/arch/mips/boot/dts/ni/169445.dts
+++ b/arch/mips/boot/dts/ni/169445.dts
@@ -1,4 +1,5 @@
 /dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	#address-cells = <1>;
@@ -57,18 +58,18 @@ gpio2: gpio@14 {
 			no-output;
 		};
 
-		nand@0 {
+		nand-controller@0 {
 			compatible = "gpio-control-nand";
 			nand-on-flash-bbt;
 			nand-ecc-mode = "soft_bch";
 			nand-ecc-step-size = <512>;
 			nand-ecc-strength = <4>;
 			reg = <0x0 4>;
-			gpios = <&gpio2 0 0>, /* rdy */
-				<&gpio1 1 0>, /* nce */
-				<&gpio1 2 0>, /* ale */
-				<&gpio1 3 0>, /* cle */
-				<&gpio1 4 0>; /* nwp */
+			rdy-gpios = <&gpio2 0 GPIO_ACTIVE_HIGH>;
+			ce-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
+			ale-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+			cle-gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
+			wp-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
 		};
 
 		serial@...00 {

-- 
2.34.1