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

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Message-ID: <1430228434-31779-1-git-send-email-eddie.huang@mediatek.com>
Date:	Tue, 28 Apr 2015 21:40:31 +0800
From:	Eddie Huang <eddie.huang@...iatek.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Matthias Brugger <matthias.bgg@...il.com>
CC:	<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>,
	Eddie Huang <eddie.huang@...iatek.com>,
	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: [PATCH v3 0/3] tty: serial: Add earlycon support to MT8173 SoC 

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

 arch/arm64/boot/dts/mediatek/mt8173-evb.dts |  4 +++-
 drivers/tty/serial/8250/8250_early.c        |  2 +-
 drivers/tty/serial/8250/8250_mtk.c          | 13 +++++++++++++
 include/linux/serial_8250.h                 |  2 ++
 4 files changed, 19 insertions(+), 2 deletions(-)

-- 
1.8.1.1.dirty

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