linux-kernel - Re: [PATCH V2 3/4] ARM64 LPC: support serial based on low-pin-count

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Message-ID: <5345060.9D0B4ujt5e@wuerfel>
Date:   Wed, 07 Sep 2016 16:50:01 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Zhichang Yuan <yuanzhichang@...ilicon.com>, linuxarm@...wei.com,
        linux-kernel@...r.kernel.org, lorenzo.pieralisi@....com,
        minyard@....org, benh@...nel.crashing.org,
        gabriele.paoloni@...wei.com, john.garry@...wei.com,
        liviu.dudau@....com, zhichang.yuan02@...il.com,
        zourongrong@...il.com
Subject: Re: [PATCH V2 3/4] ARM64 LPC: support serial based on low-pin-count

On Wednesday, September 7, 2016 9:33:52 PM CEST Zhichang Yuan wrote:
> From: "zhichang.yuan" <yuanzhichang@...ilicon.com>
> 
> On Hip06 platform, a 16550 compatible UART is connected to low-pin-count and
> controlled through the LPC I/O cycles. This patch drives the UART port with
> the specific serial in/out function pair based on the indirect-IO mechanism
> introduced by Hip06 LPC driver.
> 
> Signed-off-by: zhichang.yuan <yuanzhichang@...ilicon.com>

Any reason this cannot just use the regular drivers/tty/serial/8250/8250_of.c
driver?

	Arnd