Re: [PATCH 0/3] IIO: st_sensors_i2c: improve device enumeration

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On Mon, 2 Jul 2018, Andy Shevchenko wrote:
On Mon, Jul 2, 2018 at 9:41 AM, Nikolaus Voss
<nikolaus.voss@xxxxxxxxxxxxxxxxxxxxx> wrote:
On Fri, 29 Jun 2018, Andy Shevchenko wrote:

I'm not sure I understand how ->probe_new() is supposed to work
against i2c_id_table, but I don't care for legacy platform data
anyway.

What I would like to point to is device_get_match_data() API which
should simplify / unify the case how you get driver data.


This driver doesn't need any driver data/ platform_data beyond the
i2c_id_table name (which has already been matched when probe()/ probe_new()
is called), so strictly neither of_match_table nor apci_match_table would be
necessary, because i2c DT/ ACPI enumeration also matches against i2c_table
names.

Looking at the code I see still calls to acpi_match_data() and of_match_data().
Instead nowadays better to use device_get_match_data().

You are completely right, sorry. I rewrote and reposted the patch.

i2c_id_table should be removed from the module device table at least
(though you may continue to use it internally in the driver).

As I understand it, it is still necessary to make i2c_register_board_info() work.

Niko
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