mfd: twl6030: Fix endianness problem in IRQ handler

The current TWL 6030 IRQ handler assumes little endianness.
This change makes it endian-neutral.

Signed-off-by: Danke Xie <d.xie@sta.samsung.com>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
index 517eda832f79..18a607e2ca06 100644
--- a/drivers/mfd/twl6030-irq.c
+++ b/drivers/mfd/twl6030-irq.c
@@ -176,8 +176,9 @@ static irqreturn_t twl6030_irq_thread(int irq, void *data)
         int i, ret;
         union {
                 u8 bytes[4];
-                u32 int_sts;
+                __le32 int_sts;
         } sts;
+        u32 int_sts; /* sts.int_sts converted to CPU endianness */
         struct twl6030_irq *pdata = data;
 
         /* read INT_STS_A, B and C in one shot using a burst read */
@@ -196,8 +197,9 @@ static irqreturn_t twl6030_irq_thread(int irq, void *data)
         if (sts.bytes[2] & 0x10)
                 sts.bytes[2] |= 0x08;
 
-        for (i = 0; sts.int_sts; sts.int_sts >>= 1, i++)
-                if (sts.int_sts & 0x1) {
+        int_sts = le32_to_cpu(sts.int_sts);
+        for (i = 0; int_sts; int_sts >>= 1, i++)
+                if (int_sts & 0x1) {
                         int module_irq =
                                 irq_find_mapping(pdata->irq_domain,
                                                  pdata->irq_mapping_tbl[i]);