linux-kernel - [RFC PATCH 0/2] serial 8250 platform PM hooks

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Message-Id: <1269450986-3714-1-git-send-email-manuel.lauss@gmail.com>
Date:	Wed, 24 Mar 2010 18:16:24 +0100
From:	Manuel Lauss <manuel.lauss@...glemail.com>
To:	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	linux-mips@...ux-mips.org, Manuel Lauss <manuel.lauss@...il.com>
Subject: [RFC PATCH 0/2] serial 8250 platform PM hooks

The following 2 patches implement a PM hook for platform 8250
UARTs and a sample PM implementation for a MIPS SoC.

Patch #1 hooks a new .pm callback in struct plat_serial8250_port to
the rest of serial_core's PM infrastructure,

Patch #2 implements uart power gating for Alchemy line of mips socs
using the new hook.

With these 2 patches serial console on my test system survives
suspend/resume cycles without having to resort to platform-specific
hacks in the PM code.

Thanks,
     Manuel Lauss

Manuel Lauss (2):
  8250: allow platform uarts to install PM callback.
  Alchemy: UART PM through serial framework.

 arch/mips/alchemy/common/platform.c |   17 +++++++++++++++++
 arch/mips/alchemy/common/power.c    |   32 --------------------------------
 drivers/serial/8250.c               |   31 ++++++++++++++++++++++++++++---
 include/linux/serial_8250.h         |    6 ++++++
 4 files changed, 51 insertions(+), 35 deletions(-)

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