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>

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 98fdcdbbd610bcfaae98aaef8f8cecc7f942e22e..c4a69f193a1df1985abfbaeeffb8e39cda933493 100644 (file)
--- 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)