linux-kernel - Re: [PATCH V2 2/6] tty: serial: lpuart: add little endian 32 bit register support

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Date:   Wed, 17 May 2017 11:26:57 +0800
From:   Dong Aisheng <dongas86@...il.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Dong Aisheng <aisheng.dong@....com>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, fugang.duan@....com,
        Stefan Agner <stefan@...er.ch>, Mingkai.Hu@....com,
        yangbo.lu@....com
Subject: Re: [PATCH V2 2/6] tty: serial: lpuart: add little endian 32 bit
 register support

On Mon, May 15, 2017 at 04:36:25PM +0300, Andy Shevchenko wrote:
> On Mon, May 15, 2017 at 10:48 AM, Dong Aisheng <aisheng.dong@....com> wrote:
> > It's based on the exist lpuart32 read/write implementation.
> 
> Same as per previous comment (perhaps not in other UART driver, but
> some might have been using device property for that.
> 

The reason why we do that is: a) we don't want to make a churn on the
exist users. b) it's not really necessary to use dt property
when we already have a soc_data as it has no much benefit but introduce
overhead.

Regards
Dong Aisheng

> 
> -- 
> With Best Regards,
> Andy Shevchenko