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Re: [PATCH v9 6/8] drivers:input:ads7846(+tsc2046): fix spi module table

From Dmitry Torokhov <dmitry.torokhov@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH v9 6/8] drivers:input:ads7846(+tsc2046): fix spi module table
Date 2017-01-29 19:10 +0100
Message-ID <t525j-1Vo-15@gated-at.bofh.it> (permalink)
References <sTnRT-15P-3@gated-at.bofh.it> <sTnRU-15P-31@gated-at.bofh.it> <t4Hay-5CU-21@gated-at.bofh.it> <t4Tln-4Mg-1@gated-at.bofh.it>
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On Sun, Jan 29, 2017 at 09:39:39AM +0100, H. Nikolaus Schaller wrote:
> Hi Dmitry,
> 
> > Am 28.01.2017 um 20:35 schrieb Dmitry Torokhov <dmitry.torokhov@gmail.com>:
> > 
> > On Wed, Dec 28, 2016 at 03:53:21PM +0100, H. Nikolaus Schaller wrote:
> >> Fix module table so that the driver is loaded if compiled
> >> as module and requested by DT.
> >> 
> > 
> > I believe I already replied to a similar patch: we alreadyhave necessary
> > aliases in this driver, we need to fix module loading to use it.
> 
> Yes, you did comment on [PATCH v6 7/8] (19 Nov 2016):
> 
> >> We really need to fix it between spi/i23c core and module utils instead
> >> of keeping adding duplicate IDs all over drivers. We already have OF
> >> module device table containing the same data, we should be able to use
> >> it.
> 
> And Javier Martinez Canillas replied (23 Nov 2016):
> 
> > Agreed, unfortunately until the I2C and SPI core are changed to properly
> > report OF modaliases, we will have to keep adding these duplicated IDs.
> > 
> > And changing the I2C and SPI core isn't trivial since it could break a
> > lot of drivers that rely on a platform modalias being reported (i.e: no
> > OF device IDs present in the drivers even when are registered via DT).
> 
> Therefore I didn't see a need to change it.

I agree that changing I2C and SPI core is not trivial, however this is
no reason for piling up workarounds in all drivers. Are you seriously
advocating going though *every* driver and copying OF data into I2C/SPI
instead of doing the right thing and fixing the root of the issue?

Thanks.

-- 
Dmitry

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Re: [PATCH v9 6/8] drivers:input:ads7846(+tsc2046): fix spi module  table Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2017-01-28 20:50 +0100
  Re: [PATCH v9 6/8] drivers:input:ads7846(+tsc2046): fix spi module table "H. Nikolaus Schaller" <hns@goldelico.com> - 2017-01-29 09:50 +0100
    Re: [PATCH v9 6/8] drivers:input:ads7846(+tsc2046): fix spi module  table Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2017-01-29 19:10 +0100
      Re: [PATCH v9 6/8] drivers:input:ads7846(+tsc2046): fix spi module table "H. Nikolaus Schaller" <hns@goldelico.com> - 2017-01-29 19:30 +0100

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