From b330f85d3d42cbe091736a0abd8f005b448d133a Mon Sep 17 00:00:00 2001 From: Graeme Gregory Date: Fri, 22 Jun 2012 13:36:19 +0100 Subject: 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 Signed-off-by: Samuel Ortiz --- drivers/mfd/palmas.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c index 98fdcdbbd61..c4a69f193a1 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) -- cgit v1.2.3-18-g5258