[U-Boot] [PATCH] arm64: zynqmp: Add generic compatible string for I2C EEPROM

Michal Simek michal.simek at xilinx.com
Fri Dec 8 14:37:26 UTC 2017


From: Javier Martinez Canillas <javier at dowhile0.org>

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 at dowhile0.org>
Acked-by: Michal Simek <michal.simek at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 arch/arm/dts/zynqmp-ep108.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/dts/zynqmp-ep108.dts b/arch/arm/dts/zynqmp-ep108.dts
index b0096f14b444..a16ffdc3f0ce 100644
--- a/arch/arm/dts/zynqmp-ep108.dts
+++ b/arch/arm/dts/zynqmp-ep108.dts
@@ -65,7 +65,7 @@
 	status = "okay";
 	clock-frequency = <400000>;
 	eeprom at 54 {
-		compatible = "at,24c64";
+		compatible = "atmel,24c64";
 		reg = <0x54>;
 	};
 };
@@ -74,7 +74,7 @@
 	status = "okay";
 	clock-frequency = <400000>;
 	eeprom at 55 {
-		compatible = "at,24c64";
+		compatible = "atmel,24c64";
 		reg = <0x55>;
 	};
 };
-- 
1.9.1



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