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

To: Linux Serial <>
Subject: [RFC PATCH 0/2] serial 8250 platform PM hooks
From: Manuel Lauss <>
Date: Tue, 23 Feb 2010 19:22:25 +0100
Cc: Linux-MIPS <>, Manuel Lauss <>
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Original-recipient: rfc822;
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.

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.

     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    |   35 -----------------------------------
 drivers/serial/8250.c               |   31 ++++++++++++++++++++++++++++---
 include/linux/serial_8250.h         |    6 ++++++
 4 files changed, 51 insertions(+), 38 deletions(-)

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