From 34a4958e4cfe1a379ed18fb3e2d0b93ba08f28d3 Mon Sep 17 00:00:00 2001 From: Markus Pargmann Date: Mon, 8 Sep 2014 09:01:11 +0200 Subject: [PATCH] mfd: mc13xxx: Configure WDI reset 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 Signed-off-by: Lee Jones --- drivers/mfd/mc13xxx-core.c | 8 ++++++++ 1 file changed, 8 insertions(+) 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);