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[01/38] ARM: dts: r7s72100: Add generic compatible string for I2C EEPROM

Message ID 61e137ce2cfe2c7bba9e24686dfe495cd6ce6ed8.1501514100.git.horms+renesas@verge.net.au (mailing list archive)
State New, archived
Headers show

Commit Message

Simon Horman July 31, 2017, 3:19 p.m. UTC
From: Javier Martinez Canillas <javier@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@dowhile0.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r7s72100-genmai.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/arch/arm/boot/dts/r7s72100-genmai.dts b/arch/arm/boot/dts/r7s72100-genmai.dts
index 52a7b586bac7..b0db621ff176 100644
--- a/arch/arm/boot/dts/r7s72100-genmai.dts
+++ b/arch/arm/boot/dts/r7s72100-genmai.dts
@@ -57,7 +57,7 @@ 
 	clock-frequency = <400000>;
 
 	eeprom@50 {
-		compatible = "renesas,24c128";
+		compatible = "renesas,24c128", "atmel,24c128";
 		reg = <0x50>;
 		pagesize = <64>;
 	};