linux-kernel - [PATCH] ARM: at91/dt: Disable SPI on at91sam9x5ek to allow MCI1 to work.

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Message-ID: <1487265388-29390-1-git-send-email-cristian.birsan@microchip.com>
Date:   Thu, 16 Feb 2017 19:16:28 +0200
From:   <cristian.birsan@...rochip.com>
To:     <nicolas.ferre@...el.com>, <alexandre.belloni@...e-electrons.com>,
        <robh+dt@...nel.org>, <mark.rutland@....com>,
        <linux@...linux.org.uk>
CC:     <cyrille.pitchen@...el.com>, <boris.brezillon@...e-electrons.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Cristian Birsan <cristian.birsan@...rochip.com>
Subject: [PATCH] ARM: at91/dt: Disable SPI on at91sam9x5ek to allow MCI1 to work.

From: Cristian Birsan <cristian.birsan@...rochip.com>

The A13 hardware line is shared by SPI and MCI1 controller.This patch
disables the SPI controller so that the MCI1 (the big MMC card slot) can
be used.

Signed-off-by: Cristian Birsan <cristian.birsan@...rochip.com>
---
 arch/arm/boot/dts/at91sam9x5ek.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/at91sam9x5ek.dtsi b/arch/arm/boot/dts/at91sam9x5ek.dtsi
index 696b8ba..9d2bbc4 100644
--- a/arch/arm/boot/dts/at91sam9x5ek.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5ek.dtsi
@@ -116,7 +116,7 @@
 			};
 
 			spi0: spi@...00000 {
-				status = "okay";
+				status = "disabled"; /* conflicts with mmc1 */
 				cs-gpios = <&pioA 14 0>, <0>, <0>, <0>;
 				m25p80@0 {
 					compatible = "atmel,at25df321a";
-- 
2.7.4