Thread (9 messages) flat view 9 messages, 3 authors, 2017-12-27

Re: [PATCH v3 1/5] dt-bindings: at24: consistently document the compatible property

From: Rob Herring <robh+dt@kernel.org>
Date: 2017-12-27 17:21:46
Also in: linux-i2c, lkml

On Wed, Dec 27, 2017 at 7:50 AM, Bartosz Golaszewski [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Current description of the compatible property for at24 is quite vague.

State explicitly that any "<manufacturer>,<model>" pair is accepted as
long as one of the listed strings is used as fallback.

Signed-off-by: Bartosz Golaszewski <redacted>
---
 Documentation/devicetree/bindings/eeprom/at24.txt | 37 +++++++++--------------
 1 file changed, 15 insertions(+), 22 deletions(-)
diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt b/Documentation/devicetree/bindings/eeprom/at24.txt
index cbc80e194ac6..b5ce5a247554 100644
--- a/Documentation/devicetree/bindings/eeprom/at24.txt
+++ b/Documentation/devicetree/bindings/eeprom/at24.txt
@@ -2,28 +2,21 @@ EEPROMs (I2C)

 Required properties:

-  - compatible : should be "<manufacturer>,<type>", like these:
-
-       "atmel,24c00", "atmel,24c01", "atmel,24c02", "atmel,24c04",
-       "atmel,24c08", "atmel,24c16", "atmel,24c32", "atmel,24c64",
-       "atmel,24c128", "atmel,24c256", "atmel,24c512", "atmel,24c1024"
-
-       "catalyst,24c32"
-
-       "microchip,24c128"
-
-       "ramtron,24c64"
-
-       "renesas,r1ex24002"
Keep this and any others that don't have an atmel model. This should
probably also state what the fallback should be (atmel,24c02 ?).
-
-       The following manufacturers values have been deprecated:
-       "at", "at24"
-
-        If there is no specific driver for <manufacturer>, a generic
-        device with <type> and manufacturer "atmel" should be used.
-        Possible types are:
-        "24c00", "24c01", "24c02", "24c04", "24c08", "24c16", "24c32", "24c64",
-        "24c128", "24c256", "24c512", "24c1024", "spd"
You remove "spd" here and add it back later. Just fold that in below.
I'll leave it to others to bikeshed where in the list.
+  - compatible: must be a "<manufacturer>,<model>" pair with one of the
We should enumerate known vendors/manufacturers because something like
"linaro,24c00" is not valid.
+                following values as fallback:
+
+                "atmel,24c00",
+                "atmel,24c01",
+                "atmel,24c02",
+                "atmel,24c04",
+                "atmel,24c08",
+                "atmel,24c16",
+                "atmel,24c32",
+                "atmel,24c64",
+                "atmel,24c128",
+                "atmel,24c256",
+                "atmel,24c512",
+                "atmel,24c1024"

   - reg : the I2C address of the EEPROM

--
2.15.1
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