From: shawn.guo@linaro.org (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/3] ARM: imx: make mxs_restart() work for DT boot
Date: Mon, 13 May 2013 09:32:05 +0800 [thread overview]
Message-ID: <1368408728-12264-1-git-send-email-shawn.guo@linaro.org> (raw)
The mxs_restart() currently only works for non-DT platforms. And per
Russell's comment, it's not going to work reliably, because the restart
routine could be called in atomic context while mxs_restart() is calling
clk_prepare() there.
The series fixes above potential problem by moving clk_prepare() into
initialization function mxc_arch_reset_init() and only keeping atomic
part clk_enable() in mxs_restart().
Then a DT variant initialization function imx_arch_reset_init() is
added, so that DT platforms can use mxs_restart() as well after invoking
the initialization function.
Shawn Guo (3):
ARM: imx: include <asm/io.h> in hardware.h
ARM: imx: move clk_prepare() out from mxs_restart()
ARM: imx: create imx_arch_reset_init() for DT boot
arch/arm/mach-imx/common.h | 1 +
arch/arm/mach-imx/hardware.h | 1 +
arch/arm/mach-imx/imx25-dt.c | 2 ++
arch/arm/mach-imx/imx27-dt.c | 2 ++
arch/arm/mach-imx/imx31-dt.c | 2 ++
arch/arm/mach-imx/imx51-dt.c | 2 ++
arch/arm/mach-imx/mach-imx53.c | 3 +++
arch/arm/mach-imx/mm-imx1.c | 2 +-
arch/arm/mach-imx/mm-imx21.c | 2 +-
arch/arm/mach-imx/mm-imx25.c | 2 +-
arch/arm/mach-imx/mm-imx27.c | 2 +-
arch/arm/mach-imx/mm-imx3.c | 4 ++--
arch/arm/mach-imx/mm-imx5.c | 3 +--
arch/arm/mach-imx/system.c | 47 +++++++++++++++++++++++++++++++---------
14 files changed, 57 insertions(+), 18 deletions(-)
--
1.7.9.5
next reply other threads:[~2013-05-13 1:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-13 1:32 Shawn Guo [this message]
2013-05-13 1:32 ` [PATCH 1/3] ARM: imx: include <asm/io.h> in hardware.h Shawn Guo
2013-05-13 1:32 ` [PATCH 2/3] ARM: imx: move clk_prepare() out from mxs_restart() Shawn Guo
2013-05-13 8:25 ` Sascha Hauer
2013-05-13 12:51 ` Shawn Guo
2013-05-13 1:32 ` [PATCH 3/3] ARM: imx: create imx_arch_reset_init() for DT boot Shawn Guo
2013-05-13 8:27 ` Sascha Hauer
2013-05-13 12:52 ` Shawn Guo
2013-05-13 12:54 ` Sascha Hauer
2013-05-13 13:05 ` [PATCH v2 3/3] ARM: imx: create mxc_arch_reset_init_dt() " Shawn Guo
2013-05-13 14:59 ` Sascha Hauer
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