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Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file

From Peter Hung <hpeter@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file
Date 2016-01-20 09:30 +0100
Message-ID <qSWjo-3N7-13@gated-at.bofh.it> (permalink)
References (2 earlier) <qSA9b-5iQ-5@gated-at.bofh.it> <qSDJL-7SY-3@gated-at.bofh.it> <qSEwa-8rZ-11@gated-at.bofh.it> <qSRa4-5e-89@gated-at.bofh.it> <qSUrf-2Au-11@gated-at.bofh.it>
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Hi Sudip,

Sudip Mukherjee 於 2016/1/20 下午 02:22 寫道:
> On Wed, Jan 20, 2016 at 10:59:28AM +0800, Peter Hung wrote:

> But my personal opinion, if we move out the serial port related code
> into a new driver (a new Kconfig symbol) userspace of many system will
> break if this new symbol is not enabled by the distributions. But in the
> way I have done the new symbol needs to be enabled only if the user
> wants to use the GPIO capability. If that is not enabled GPIO cannot be
> used but it will never break the serial port related code for them.
> I think we should give a thought to that before splitting out the codes
> from 8250_pci.

I agree with your opinion. I'm trying to implement GPIO with 2 ways,
One is like yours, add platform_device with in 8250_pci.c and implement
GPIOLIB platform driver with in 'driver/gpio", and the other is trying
split out from 8250_pci.c to MFD.

In my personal opinion, the first method is less impact with compatible
old system.
-- 
With Best Regards,
Peter Hung

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Thread

[PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file Peter Hung <hpeter@gmail.com> - 2016-01-19 03:50 +0100
  [PATCH 1/3] serial: 8250_pci: Remove Fintek PCIE UART driver Peter Hung <hpeter@gmail.com> - 2016-01-19 03:50 +0100
  Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-01-19 05:00 +0100
    Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file Peter Hung <hpeter@gmail.com> - 2016-01-19 09:50 +0100
      Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-01-19 10:40 +0100
      Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-19 13:40 +0100
        Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-01-19 14:30 +0100
          Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file Peter Hung <hpeter@gmail.com> - 2016-01-20 04:00 +0100
            Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2016-01-20 07:30 +0100
              Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file Peter Hung <hpeter@gmail.com> - 2016-01-20 09:30 +0100
                Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2016-01-22 12:00 +0100
                Re: [PATCH 0/3] 8250: Split Fintek PCIE to UART to independent file Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-01-22 14:50 +0100

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