Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1601121

Re: [PATCH 4/4] eeprom: at24: Add OF device ID table

From Wolfram Sang <wsa@the-dreams.de>
Newsgroups linux.kernel
Subject Re: [PATCH 4/4] eeprom: at24: Add OF device ID table
Date 2017-03-15 09:00 +0100
Message-ID <tlc0F-4wj-1@gated-at.bofh.it> (permalink)
References <tkWyB-20n-5@gated-at.bofh.it> <tkWyD-20n-51@gated-at.bofh.it> <tl3JM-7h6-11@gated-at.bofh.it> <tl4Pv-7ZV-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


[Multipart message — attachments visible in raw view] - view raw

> So there isn't an agreement if is better to just rely in the current behavior
> (and have a superfluous I2C device ID table) or fix the I2C core (and need a
> OF device ID table).

For at24, the i2c_device_id table is not superfluous! It is used outside
the DT world as well.

> Indeed, but these all are compatible strings used by DTS in mainline and so
> should be in the OF device ID table in order to be matched and the proper
> modalias reported (once the I2C core is fixed).

I'd think we should fix the DTS files instead to contain a fallback we
agree on. Say, we agree on "atmel,at24c01" as a the generic fallback,
the DTS should contain:

	compatible = "<your_vendor>,<your_type>", "atmel,at24c01"

And we shall only keep compatible values in the source file which differ
in behaviour fromt the generic case.

> One option is to add #ifdef CONFIG_OF guards for the OF device table definition
> but again there's no agreement on that one since some maintainers say the it is
> better to always build the OF ID table than having #ifdefery in C code...

I don't like the #ifdeffery as well.

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH 0/4] misc: Add OF device table to I2C drivers that are missing it Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-14 16:30 +0100
  [PATCH 1/4] misc: tsl2550: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-14 16:30 +0100
    Re: [PATCH 1/4] misc: tsl2550: Add OF device ID table Arnd Bergmann <arnd@arndb.de> - 2017-03-14 22:00 +0100
  [PATCH 3/4] eeprom: idt_89hpesx: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-14 16:30 +0100
  [PATCH 2/4] misc: ds1682: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-14 16:30 +0100
    Re: [PATCH 2/4] misc: ds1682: Add OF device ID table Arnd Bergmann <arnd@arndb.de> - 2017-03-14 21:50 +0100
      Re: [PATCH 2/4] misc: ds1682: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-15 01:40 +0100
        Re: [PATCH 2/4] misc: ds1682: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-15 04:30 +0100
  [PATCH 4/4] eeprom: at24: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-14 16:30 +0100
    Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-15 00:10 +0100
      Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-15 01:20 +0100
        Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Wolfram Sang <wsa@the-dreams.de> - 2017-03-15 09:00 +0100
          Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-15 12:10 +0100
            Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-15 12:30 +0100
              Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-15 12:50 +0100
                Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-15 23:50 +0100
                Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-16 13:30 +0100
            Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Wolfram Sang <wsa@the-dreams.de> - 2017-03-16 14:10 +0100
              Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-16 14:20 +0100
                Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Wolfram Sang <wsa@the-dreams.de> - 2017-03-16 14:40 +0100
                Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-16 15:10 +0100
                Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Wolfram Sang <wsa@the-dreams.de> - 2017-03-16 16:10 +0100
                Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-16 16:40 +0100
                Re: [PATCH 4/4] eeprom: at24: Add OF device ID table Javier Martinez Canillas <javier@osg.samsung.com> - 2017-03-20 17:50 +0100

csiph-web