From: Fabio Estevam <festevam@gmail.com>
Date: Sun, 13 Sep 2020 16:29:13 +0000 (-0300)
Subject: ARM: dts: imx6q-logicpd: Use GPIO chipselect
X-Git-Tag: v5.10-rc1~26^2~28^2~1
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=55df2079eb6faa048a0d65306556e6d7423a5029;p=users%2Fdwmw2%2Flinux.git

ARM: dts: imx6q-logicpd: Use GPIO chipselect

Using the native SPI chipselect on i.MX6 is known to be problematic.

Doing it on a imx6q-sabresd causes the SPI NOR probe to fail:

[    5.388704] spi-nor spi0.0: unrecognized JEDEC id bytes: 00 00 00 00 00 00

Use the GPIO chipselect to avoid such problem.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
index 9e027b9a5f91f..665d63765cdc2 100644
--- a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
+++ b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
@@ -212,6 +212,7 @@
 &ecspi1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_ecspi1>;
+	cs-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
 	status = "disabled";
 };
 
@@ -383,7 +384,7 @@
 			MX6QDL_PAD_KEY_COL0__ECSPI1_SCLK	0x100b1
 			MX6QDL_PAD_KEY_ROW0__ECSPI1_MOSI	0x100b1
 			MX6QDL_PAD_KEY_COL1__ECSPI1_MISO	0x100b1
-			MX6QDL_PAD_KEY_ROW1__ECSPI1_SS0		0x100b1
+			MX6QDL_PAD_KEY_ROW1__GPIO4_IO09		0x1b0b0
 		>;
 	};