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authorGraeme Gregory <gg@slimlogic.co.uk>2012-06-22 13:36:19 +0100
committerSamuel Ortiz <sameo@linux.intel.com>2012-07-09 00:16:26 +0200
commitb330f85d3d42cbe091736a0abd8f005b448d133a (patch)
treeccd0456af4b9b464cbb2788ebaf196a7eae9b0e6
parentadc20e02aefa83d95829cdeb1152ff641adcc779 (diff)
downloadlinux-b330f85d3d42cbe091736a0abd8f005b448d133a.tar.gz
linux-b330f85d3d42cbe091736a0abd8f005b448d133a.tar.xz
mfd: Add missing hunk to change palmas irq to clear on read
During conversion to regmap_irq this hunk was missing being moved to MFD driver to put the chip into clear on read mode. Also as slave is now set use it to determine which slave for the register call. Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
-rw-r--r--drivers/mfd/palmas.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 98fdcdbbd610..c4a69f193a1d 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -356,7 +356,14 @@ static int __devinit palmas_i2c_probe(struct i2c_client *i2c,
}
}
- ret = regmap_add_irq_chip(palmas->regmap[1], palmas->irq,
+ /* Change IRQ into clear on read mode for efficiency */
+ slave = PALMAS_BASE_TO_SLAVE(PALMAS_INTERRUPT_BASE);
+ addr = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE, PALMAS_INT_CTRL);
+ reg = PALMAS_INT_CTRL_INT_CLEAR;
+
+ regmap_write(palmas->regmap[slave], addr, reg);
+
+ ret = regmap_add_irq_chip(palmas->regmap[slave], palmas->irq,
IRQF_ONESHOT | IRQF_TRIGGER_LOW, -1, &palmas_irq_chip,
&palmas->irq_data);
if (ret < 0)