linux-kernel - Re: [PATCH 2/5] USB: serial: f81232: add high baud rate support

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Message-ID: <CAHp75VdFFdpp+fkqqjfm82OsLRTiY2W3M3+AHq_st9zJrBRraQ@mail.gmail.com>
Date:   Mon, 22 Jan 2018 16:55:47 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     "Ji-Ze Hong (Peter Hong)" <hpeter@...il.com>
Cc:     Johan Hovold <johan@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        USB <linux-usb@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Peter H <peter_hong@...tek.com.tw>,
        "Ji-Ze Hong (Peter Hong)" <hpeter+linux_kernel@...il.com>
Subject: Re: [PATCH 2/5] USB: serial: f81232: add high baud rate support

On Mon, Jan 22, 2018 at 9:58 AM, Ji-Ze Hong (Peter Hong)
<hpeter@...il.com> wrote:
> The F81232 had 4 clocksource 1.846/18.46/14.77/24MHz and baud rates
> can be up to 1.5Mbits with 24MHz.
>
> F81232 Clock registers (106h)
>
> Bit1-0:     Clock source selector
>                     00: 1.846MHz.
>                     01: 18.46MHz.
>                     10: 24MHz.
>                     11: 14.77MHz.

Hmm... Why not to provide a proper clk driver (based on table variant
of clk-divider) and use it here?


-- 
With Best Regards,
Andy Shevchenko