linux-kernel - [PATCH v3 07/21] ARM: dts: imx: Add generic compatible string for I2C EEPROM

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Date:   Thu, 13 Apr 2017 22:04:31 -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>,
        Fabio Estevam <fabio.estevam@....com>,
        devicetree@...r.kernel.org, Sascha Hauer <kernel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        Shawn Guo <shawnguo@...nel.org>
Subject: [PATCH v3 07/21] ARM: dts: imx: 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/imx27-phytec-phycard-s-som.dtsi | 2 +-
 arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi   | 2 +-
 arch/arm/boot/dts/imx28-evk.dts                   | 2 +-
 arch/arm/boot/dts/imx53-tqma53.dtsi               | 2 +-
 arch/arm/boot/dts/imx6q-cm-fx6.dts                | 2 +-
 arch/arm/boot/dts/imx6q-utilite-pro.dts           | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/imx27-phytec-phycard-s-som.dtsi b/arch/arm/boot/dts/imx27-phytec-phycard-s-som.dtsi
index 4f3e0f473581..e4c20b3a8ccd 100644
--- a/arch/arm/boot/dts/imx27-phytec-phycard-s-som.dtsi
+++ b/arch/arm/boot/dts/imx27-phytec-phycard-s-som.dtsi
@@ -40,7 +40,7 @@
 	status = "okay";
 
 	at24@52 {
-		compatible = "at,24c32";
+		compatible = "at,24c32", "atmel,24c32";
 		pagesize = <32>;
 		reg = <0x52>;
 	};
diff --git a/arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi b/arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi
index 82fec935ce83..e46a2fd55732 100644
--- a/arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi
+++ b/arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi
@@ -193,7 +193,7 @@
 	status = "okay";
 
 	at24@52 {
-		compatible = "at,24c32";
+		compatible = "at,24c32", "atmel,24c32";
 		pagesize = <32>;
 		reg = <0x52>;
 	};
diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index a5ba669b4eaa..55c1a6a7425d 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -203,7 +203,7 @@
 				};
 
 				at24@51 {
-					compatible = "at24,24c32";
+					compatible = "at24,24c32", "atmel,24c32";
 					pagesize = <32>;
 					reg = <0x51>;
 				};
diff --git a/arch/arm/boot/dts/imx53-tqma53.dtsi b/arch/arm/boot/dts/imx53-tqma53.dtsi
index 85972f2201c2..95da69691de3 100644
--- a/arch/arm/boot/dts/imx53-tqma53.dtsi
+++ b/arch/arm/boot/dts/imx53-tqma53.dtsi
@@ -272,7 +272,7 @@
 	};
 
 	eeprom: 24c64@50 {
-		compatible = "at,24c64";
+		compatible = "at,24c64", "atmel,24c64";
 		pagesize = <32>;
 		reg = <0x50>;
 	};
diff --git a/arch/arm/boot/dts/imx6q-cm-fx6.dts b/arch/arm/boot/dts/imx6q-cm-fx6.dts
index 66cac5328b86..9dda47a86552 100644
--- a/arch/arm/boot/dts/imx6q-cm-fx6.dts
+++ b/arch/arm/boot/dts/imx6q-cm-fx6.dts
@@ -215,7 +215,7 @@
 	clock-frequency = <100000>;
 
 	eeprom@50 {
-		compatible = "at24,24c02";
+		compatible = "at24,24c02", "atmel,24c02";
 		reg = <0x50>;
 		pagesize = <16>;
 	};
diff --git a/arch/arm/boot/dts/imx6q-utilite-pro.dts b/arch/arm/boot/dts/imx6q-utilite-pro.dts
index 69bdd82ce21f..085080f61c7b 100644
--- a/arch/arm/boot/dts/imx6q-utilite-pro.dts
+++ b/arch/arm/boot/dts/imx6q-utilite-pro.dts
@@ -128,7 +128,7 @@
 			#size-cells = <0>;
 
 			eeprom@50 {
-				compatible = "at24,24c02";
+				compatible = "at24,24c02", "atmel,24c02";
 				reg = <0x50>;
 				pagesize = <16>;
 			};
-- 
2.9.3