linux-kernel - Re: [PATCH v3 0/3] tty: serial: Add earlycon support to MT8173 SoC

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Date:	Wed, 29 Apr 2015 08:46:04 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Eddie Huang <eddie.huang@...iatek.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	srv_heupstream@...iatek.com, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>, Jiri Slaby <jslaby@...e.cz>,
	Howard Chen <ibanezchen@...il.com>,
	Ashwin Chaugule <ashwin.chaugule@...aro.org>,
	Peter Hurley <peter@...leysoftware.com>,
	Wang Long <long.wanglong@...wei.com>,
	Kevin Cernekee <cernekee@...il.com>,
	Vineet Gupta <Vineet.Gupta1@...opsys.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Alan Cox <alan@...ux.intel.com>, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org, linux-mediatek@...ts.infradead.org,
	Sascha Hauer <kernel@...gutronix.de>
Subject: Re: [PATCH v3 0/3] tty: serial: Add earlycon support to MT8173 SoC

On Tue, Apr 28, 2015 at 09:40:31PM +0800, Eddie Huang wrote:
> This patch add earlycon support to MT8173 SoC platform.
> To use earlycon, need
> 1. Add earlycon in boot parameters
> 2. Add "linux,sdtout-path" property in device tree file
> 
> This patch based on 4.1-rc1.
> 
> Change in v3:
> Remove noinit options, not necessary, because 8250_early.c will not init hardware
> if not provide baudrate.
> 
> Change v2:
> 1. Add noinit options.
> 2. Remove duplicate code in 8250_mtk.c, reuse the 8250_early.c existed function.
> 
> Eddie Huang (3):
>   tty: serial: 8250: export early_serial8250_setup function
>   tty: serial: 8250_mtk: Add earlycon
>   arm64: dts: Add mediatek MT8173 earlycon support

Works fine here:

Tested-by: Sascha Hauer <s.hauer@...gutronix.de>

Sascha


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