[PATCH 1/7] mfd: twl4030-power: Fix hang on reboot if sleep configuration was loaded earlier
Lee Jones
lee.jones at linaro.org
Tue May 20 08:01:19 PDT 2014
On Tue, 13 May 2014, Tony Lindgren wrote:
> Looks like we can still hit the issue of wrong load order of
> twl4030 configuration. If we have a sleep configuration loaded,
> and do a warm reset, the device can hang while initializing the
> wakeup12 sequence. We do have a warning message about wrong order
> of twl4030 configuration, but in this case it does not help as
> the sleep configuration was loaded during the previous boot and
> the state of twl4030 is maintained throughout the warm reset.
>
> Fix the issue by clearing any existing sleep configuration
> before we load the warm reset configuration.
>
> Cc: Peter Ujfalusi <peter.ujfalusi at ti.com>
> Signed-off-by: Tony Lindgren <tony at atomide.com>
> ---
> drivers/mfd/twl4030-power.c | 6 ++++++
> 1 file changed, 6 insertions(+)
Can't vouch for the semantics of the patch, but the code looks good.
Acked-by: Lee Jones <lee.jones at linaro.org>
Can I just apply this, or would you like Peter to review it first?
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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