Thread (1 message) 1 message, 1 author, 2012-11-26

[PATCH v3 1/5] rtc: OMAP: Add system pm_power_off to rtc driver

From: Bedia, Vaibhav <hidden>
Date: 2012-11-26 05:19:24
Also in: linux-devicetree, linux-omap

Possibly related (same subject, not in this thread)

On Thu, Nov 22, 2012 at 11:17:02, AnilKumar, Chimata wrote:
+Andrew Morton

On Tue, Nov 20, 2012 at 15:18:43, AnilKumar, Chimata wrote:
quoted
From: Colin Foe-Parker <redacted>

Add system power off control to rtc driver which is the in-charge
of controlling the BeagleBone system power. The power_off routine
can be hooked up to "pm_power_off" system call.

System power off sequence:-
* Set PMIC STATUS_OFF when PMIC_POWER_EN is pulled low
* Enable PMIC_POWER_EN in rtc module
* Set rtc ALARM2 time
* Enable ALARM2 interrupt

Added while (1); after the above steps to make sure that no other
process acquire cpu. Otherwise we might see an unexpected behaviour
because we are shutting down all the power rails of SoC except RTC.
Reviewed-by: Vaibhav Bedia <redacted>
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