linux-kernel - [PATCH v3 08/21] ARM: dts: keystone: Add generic compatible string for I2C EEPROM

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Message-Id: <20170414010445.21727-9-javier@osg.samsung.com>
Date:   Thu, 13 Apr 2017 22:04:32 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     linux-kernel@...r.kernel.org
Cc:     Wolfram Sang <wsa@...-dreams.de>,
        Javier Martinez Canillas <javier@....samsung.com>,
        devicetree@...r.kernel.org,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v3 08/21] ARM: dts: keystone: Add generic compatible string for I2C EEPROM

The at24 driver allows to register I2C EEPROM chips using different vendor
and devices, but the I2C subsystem does not take the vendor into account
when matching using the I2C table since it only has device entries.

But when matching using an OF table, both the vendor and device has to be
taken into account so the driver defines only a set of compatible strings
using the "atmel" vendor as a generic fallback for compatible I2C devices.

So add this generic fallback to the device node compatible string to make
the device to match the driver using the OF device ID table.

Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
---

Changes in v3: None
Changes in v2: None

 arch/arm/boot/dts/keystone-k2e-evm.dts  | 2 +-
 arch/arm/boot/dts/keystone-k2hk-evm.dts | 2 +-
 arch/arm/boot/dts/keystone-k2l-evm.dts  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/keystone-k2e-evm.dts b/arch/arm/boot/dts/keystone-k2e-evm.dts
index ae1ebe7ee021..8c79caae9c1b 100644
--- a/arch/arm/boot/dts/keystone-k2e-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2e-evm.dts
@@ -69,7 +69,7 @@
 
 &i2c0 {
 	dtt@50 {
-		compatible = "at,24c1024";
+		compatible = "at,24c1024", "atmel,24c1024";
 		reg = <0x50>;
 	};
 };
diff --git a/arch/arm/boot/dts/keystone-k2hk-evm.dts b/arch/arm/boot/dts/keystone-k2hk-evm.dts
index 2156ff92d08f..7c6916a11b18 100644
--- a/arch/arm/boot/dts/keystone-k2hk-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2hk-evm.dts
@@ -145,7 +145,7 @@
 
 &i2c0 {
 	dtt@50 {
-		compatible = "at,24c1024";
+		compatible = "at,24c1024", "atmel,24c1024";
 		reg = <0x50>;
 	};
 };
diff --git a/arch/arm/boot/dts/keystone-k2l-evm.dts b/arch/arm/boot/dts/keystone-k2l-evm.dts
index 056b42f99d7a..685a236a57f4 100644
--- a/arch/arm/boot/dts/keystone-k2l-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2l-evm.dts
@@ -42,7 +42,7 @@
 
 &i2c0 {
 	dtt@50 {
-		compatible = "at,24c1024";
+		compatible = "at,24c1024", "atmel,24c1024";
 		reg = <0x50>;
 	};
 };
-- 
2.9.3