On Mon, Mar 05, 2018 at 11:25:19AM +0100, Oleksij Rempel wrote: > One of the Freescale recommended sequences for power off with external > PMIC is the following: > ... > 3. SoC is programming PMIC for power off when standby is asserted. > 4. In CCM STOP mode, Standby is asserted, PMIC gates SoC supplies. > > See: > http://www.nxp.com/assets/documents/data/en/reference-manuals/IMX6DQRM.pdf > page 5083 > > This patch implements step 4. of this sequence. > > Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx> > --- > arch/arm/mach-imx/pm-imx6.c | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > > diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c > index ecdf071653d4..24689260a2a5 100644 > --- a/arch/arm/mach-imx/pm-imx6.c > +++ b/arch/arm/mach-imx/pm-imx6.c > @@ -604,6 +604,28 @@ static void __init imx6_pm_common_init(const struct imx6_pm_socdata > IMX6Q_GPR1_GINT); > } > > +static void imx6_pm_stby_poweroff(void) > +{ > + imx6_set_lpm(STOP_POWER_OFF); > + cpu_suspend(0, imx6q_suspend_finish); Do you actually need to save the processor state etc here - the request is after all to power down the system and not to suspend. Would calling imx6q_suspend_finish() directly work (and hence simplify the code) ? -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up According to speedtest.net: 8.21Mbps down 510kbps up -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
