linux-kernel - [PATCH] ARM: dts: imx23: introduce mmc0_sck

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Date:   Sun,  8 Mar 2020 23:21:44 +0100
From:   Michael Heimpold <mhei@...mpold.de>
To:     shawnguo@...nel.org, robh+dt@...nel.org, mark.rutland@....com,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Michael Heimpold <mhei@...mpold.de>
Subject: [PATCH] ARM: dts: imx23: introduce mmc0_sck_cfg

The Olimex Olinuxino board has a user led connected to SSP1_DETECT.
But since this pin is listed in mmc0_pins_fixup, it is already claimed
by MMC driver and this results in this error during boot:

[    1.390000] imx23-pinctrl 80018000.pinctrl: pin SSP1_DETECT already
  requested by 80010000.spi; cannot claim for leds
[    1.400000] imx23-pinctrl 80018000.pinctrl: pin-65 (leds) status -22
[    1.410000] imx23-pinctrl 80018000.pinctrl: could not request pin 65
   (SSP1_DETECT) from group led_gpio2_1.0  on device 80018000.pinctrl
[    1.420000] leds-gpio leds: Error applying setting, reverse things back
[    1.430000] leds-gpio: probe of leds failed with error -22

This fix it, introduce mmc0_sck_cfg and switch the Olinuxino board to it.

Signed-off-by: Michael Heimpold <mhei@...mpold.de>
---
 arch/arm/boot/dts/imx23-olinuxino.dts | 2 +-
 arch/arm/boot/dts/imx23.dtsi          | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts
index 4c9aafe00b5d..0729e72f2283 100644
--- a/arch/arm/boot/dts/imx23-olinuxino.dts
+++ b/arch/arm/boot/dts/imx23-olinuxino.dts
@@ -23,7 +23,7 @@
 			ssp0: spi@...10000 {
 				compatible = "fsl,imx23-mmc";
 				pinctrl-names = "default";
-				pinctrl-0 = <&mmc0_4bit_pins_a &mmc0_pins_fixup>;
+				pinctrl-0 = <&mmc0_4bit_pins_a &mmc0_sck_cfg>;
 				bus-width = <4>;
 				broken-cd;
 				status = "okay";
diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
index 8257630f7a49..e18ad74d5470 100644
--- a/arch/arm/boot/dts/imx23.dtsi
+++ b/arch/arm/boot/dts/imx23.dtsi
@@ -267,6 +267,14 @@
 					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
+				mmc0_sck_cfg: mmc0-sck-cfg@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						MX23_PAD_SSP1_SCK__SSP1_SCK
+					>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
+				};
+
 				mmc1_4bit_pins_a: mmc1-4bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-- 
2.17.1