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powerpc/83xx: Add generic compatible string for I2C EEPROM
authorJavier Martinez Canillas <javier@dowhile0.org>
Thu, 15 Jun 2017 18:54:17 +0000 (20:54 +0200)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 28 Jun 2017 03:08:14 +0000 (13:08 +1000)
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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/boot/dts/mpc8308_p1m.dts
arch/powerpc/boot/dts/mpc8349emitx.dts
arch/powerpc/boot/dts/mpc8377_rdb.dts
arch/powerpc/boot/dts/mpc8377_wlan.dts
arch/powerpc/boot/dts/mpc8378_rdb.dts
arch/powerpc/boot/dts/mpc8379_rdb.dts

index 57f86cd..cab933b 100644 (file)
                        interrupt-parent = <&ipic>;
                        dfsrr;
                        fram@50 {
-                               compatible = "ramtron,24c64";
+                               compatible = "ramtron,24c64", "atmel,24c64";
                                reg = <0x50>;
                        };
                };
index 90aed3a..648a858 100644 (file)
@@ -92,7 +92,7 @@
                        dfsrr;
 
                        eeprom: at24@50 {
-                               compatible = "st,24c256";
+                               compatible = "st,24c256", "atmel,24c256";
                                reg = <0x50>;
                        };
 
                        };
 
                        spd: at24@51 {
-                               compatible = "at24,spd";
+                               compatible = "atmel,spd";
                                reg = <0x51>;
                        };
 
index e326139..5e85d8c 100644 (file)
                                };
 
                                at24@50 {
-                                       compatible = "at24,24c256";
+                                       compatible = "atmel,24c256";
                                        reg = <0x50>;
                                };
 
index c0c7901..fee15fc 100644 (file)
                                dfsrr;
 
                                at24@50 {
-                                       compatible = "at24,24c256";
+                                       compatible = "atmel,24c256";
                                        reg = <0x50>;
                                };
 
index 71842fc..e973d61 100644 (file)
                                };
 
                                at24@50 {
-                                       compatible = "at24,24c256";
+                                       compatible = "atmel,24c256";
                                        reg = <0x50>;
                                };
 
index e442a29..ed5d12f 100644 (file)
                                };
 
                                at24@50 {
-                                       compatible = "at24,24c256";
+                                       compatible = "atmel,24c256";
                                        reg = <0x50>;
                                };