From: lee.jones@linaro•org (Lee Jones)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH] mfd: mc13xxx: Configure WDI reset
Date: Mon, 8 Sep 2014 08:27:17 +0100 [thread overview]
Message-ID: <20140908072717.GH1397@lee--X1> (raw)
In-Reply-To: <1410159671-25873-1-git-send-email-mpa@pengutronix.de>
On Mon, 08 Sep 2014, Markus Pargmann wrote:
> Setup the PMIC to make a restart when a watchdog interrupt occures.
> If this is not configured, the PMIC will shut down the power supply
> without a restart.
>
> Signed-off-by: Markus Pargmann <mpa@pengutronix•de>
> ---
> drivers/mfd/mc13xxx-core.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
Applied, thanks.
> diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
> index 2b6bc868cd3d..64dde5d24b32 100644
> --- a/drivers/mfd/mc13xxx-core.c
> +++ b/drivers/mfd/mc13xxx-core.c
> @@ -36,6 +36,9 @@
> #define MC34708_REVISION_FIN (0x07 << 6)
> #define MC34708_REVISION_FAB (0x07 << 9)
>
> +#define MC13XXX_PWRCTRL 15
> +#define MC13XXX_PWRCTRL_WDIRESET (1 << 12)
> +
> #define MC13XXX_ADC1 44
> #define MC13XXX_ADC1_ADEN (1 << 0)
> #define MC13XXX_ADC1_RAND (1 << 1)
> @@ -416,6 +419,11 @@ int mc13xxx_common_init(struct device *dev)
>
> mc13xxx->variant->print_revision(mc13xxx, revision);
>
> + ret = mc13xxx_reg_rmw(mc13xxx, MC13XXX_PWRCTRL,
> + MC13XXX_PWRCTRL_WDIRESET, MC13XXX_PWRCTRL_WDIRESET);
> + if (ret)
> + return ret;
> +
> for (i = 0; i < ARRAY_SIZE(mc13xxx->irqs); i++) {
> mc13xxx->irqs[i].reg_offset = i / MC13XXX_IRQ_PER_REG;
> mc13xxx->irqs[i].mask = BIT(i % MC13XXX_IRQ_PER_REG);
--
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:[~2014-09-08 7:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-08 7:01 [PATCH] mfd: mc13xxx: Configure WDI reset Markus Pargmann
2014-09-08 7:27 ` Lee Jones [this message]
2014-09-08 7:42 ` Philippe Rétornaz
2014-09-08 9:25 ` Markus Pargmann
2014-09-08 12:06 ` Philippe Rétornaz
2014-09-09 5:51 ` Markus Pargmann
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