From: Lee Jones <lee.jones@linaro.org>
To: Keerthy <j-keerthy@ti.com>
Cc: tony@atomide.com, robh+dt@kernel.org, linux-omap@vger.kernel.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-gpio@vger.kernel.org, nm@ti.com, t-kristo@ti.com
Subject: Re: [PATCH v2 3/5] mfd: palmas: Reset the POWERHOLD mux during power off
Date: Fri, 24 Mar 2017 11:30:14 +0000 [thread overview]
Message-ID: <20170324113014.fpkfoc5n7qpo2l5d@dell> (raw)
In-Reply-To: <ee4f7c28-7847-ab4f-4d8f-1dce288f809a@ti.com>
On Fri, 24 Mar 2017, Keerthy wrote:
>
>
> On Tuesday 22 November 2016 06:33 PM, Lee Jones wrote:
> > On Thu, 10 Nov 2016, Keerthy wrote:
> >
> >> POWERHOLD signal has higher priority over the DEV_ON bit.
> >> So power off will not happen if the POWERHOLD is held high.
> >> Hence reset the MUX to GPIO_7 mode to release the POWERHOLD
> >> and the DEV_ON bit to take effect to power off the PMIC.
> >>
> >> PMIC Power off happens in dire situations like thermal shutdown
> >> so irrespective of the POWERHOLD setting go ahead and turn off
> >> the powerhold. Currently poweroff is broken on boards that have
> >> powerhold enabled. This fixes poweroff on those boards.
> >>
> >> Signed-off-by: Keerthy <j-keerthy@ti.com>
> >> ---
> >>
> >> Changes in v2:
> >>
> >> * Changed pr_err to dev_err
> >> * removed redundant boolean variable override-powerhold
> >>
> >> drivers/mfd/palmas.c | 14 ++++++++++++++
> >> 1 file changed, 14 insertions(+)
> >
> > Applied, thanks.
>
> Lee Jones,
>
> For some strange reason this patch is missing!
> The other patch in the series is applied through mfd tree but somehow
> this particular patch is missed out.
>
> https://patchwork.kernel.org/patch/9420631/ is applied.
>
> https://patchwork.kernel.org/patch/9420655/ is not.
>
> I tried applying this very patch and it applies cleanly on the next
> branch. Let me know if you want me to send this again on top of latest
> next branch.
Sorry about this.
Reapplied and re-pushed.
> >> diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
> >> index ee9e9ea..da90124 100644
> >> --- a/drivers/mfd/palmas.c
> >> +++ b/drivers/mfd/palmas.c
> >> @@ -430,6 +430,20 @@ static void palmas_power_off(void)
> >> {
> >> unsigned int addr;
> >> int ret, slave;
> >> + struct device_node *np = palmas_dev->dev->of_node;
> >> +
> >> + if (of_property_read_bool(np, "ti,palmas-override-powerhold")) {
> >> + addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
> >> + PALMAS_PRIMARY_SECONDARY_PAD2);
> >> + slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
> >> +
> >> + ret = regmap_update_bits(palmas_dev->regmap[slave], addr,
> >> + PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK, 0);
> >> + if (ret)
> >> + dev_err(palmas_dev->dev,
> >> + "Unable to write PRIMARY_SECONDARY_PAD2 %d\n",
> >> + ret);
> >> + }
> >>
> >> slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
> >> addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_DEV_CTRL);
> >
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
next prev parent reply other threads:[~2017-03-24 11:38 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-10 5:09 [PATCH v2 0/5] mfd: palmas: add powerhold overriding during power off Keerthy
2016-11-10 5:09 ` [PATCH v2 1/5] Documentation: pinctrl: palmas: Add ti,palmas-powerhold-override property definition Keerthy
2016-11-15 1:43 ` Rob Herring
2016-11-24 5:28 ` Keerthy
2016-11-24 8:45 ` Lee Jones
2016-11-28 3:51 ` Keerthy
2016-11-10 5:09 ` [PATCH v2 2/5] mfd: palmas: Remove redundant check in palmas_power_off Keerthy
2016-11-22 13:02 ` Lee Jones
2016-11-10 5:09 ` [PATCH v2 3/5] mfd: palmas: Reset the POWERHOLD mux during power off Keerthy
2016-11-22 13:03 ` Lee Jones
2017-03-24 10:00 ` Keerthy
2017-03-24 11:30 ` Lee Jones [this message]
2017-03-24 11:36 ` Keerthy
2016-11-10 5:09 ` [PATCH v2 4/5] arm: dts: am57xx-beagle-x15-common: Add overide powerhold property Keerthy
2016-11-15 0:08 ` Tony Lindgren
2016-11-23 3:35 ` Keerthy
2016-11-23 8:33 ` Lee Jones
2016-11-23 8:32 ` Keerthy
2016-11-23 16:08 ` Tony Lindgren
2016-11-24 3:45 ` Keerthy
2016-11-10 5:09 ` [PATCH v2 5/5] arm: dts: am57xx-idk-common: " Keerthy
2016-11-15 0:09 ` Tony Lindgren
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