diff options
| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2013-07-25 16:15:48 +0300 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-08-20 10:19:10 +0200 |
| commit | a820e5686f5f048494f71a394edb55f1c24603c5 (patch) | |
| tree | 34f6604d18d9e0c74d25485c4ee866da9bbea4a0 /drivers/mfd/twl6030-irq.c | |
| parent | 87343e534117c2932adfb394351dc83d7c378af6 (diff) | |
| download | linux-a820e5686f5f048494f71a394edb55f1c24603c5.tar.gz | |
mfd: twl6030-irq: Add error check when IRQs are masked initially
Add a missed check for errors when TWL IRQs are masked
initially on probe and report an error in case of failure.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/twl6030-irq.c')
| -rw-r--r-- | drivers/mfd/twl6030-irq.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c index 1606cedbbff4..f7da2614de80 100644 --- a/drivers/mfd/twl6030-irq.c +++ b/drivers/mfd/twl6030-irq.c @@ -313,7 +313,7 @@ int twl6030_init_irq(struct device *dev, int irq_num) struct device_node *node = dev->of_node; int nr_irqs, irq_base, irq_end; static struct irq_chip twl6030_irq_chip; - int status = 0; + int status; int i; u8 mask[3]; @@ -335,11 +335,16 @@ int twl6030_init_irq(struct device *dev, int irq_num) mask[2] = 0xFF; /* mask all int lines */ - twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_MSK_LINE_A, 3); + status = twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_MSK_LINE_A, 3); /* mask all int sts */ - twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_MSK_STS_A, 3); + status |= twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_MSK_STS_A, 3); /* clear INT_STS_A,B,C */ - twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_STS_A, 3); + status |= twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_STS_A, 3); + + if (status < 0) { + dev_err(dev, "I2C err writing TWL_MODULE_PIH: %d\n", status); + return status; + } twl6030_irq_base = irq_base; |