[PATCH v3s 3/8] bcma: add comment to bcma_chipco_gpio_control

[Hauke Mehrtens <hauke@hauke-m.de>]

Add description to the function.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 drivers/bcma/driver_chipcommon.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/bcma/driver_chipcommon.c b/drivers/bcma/driver_chipcommon.c
index 0945383..994fce6 100644
--- a/drivers/bcma/driver_chipcommon.c
+++ b/drivers/bcma/driver_chipcommon.c
@@ -108,6 +108,10 @@ u32 bcma_chipco_gpio_outen(struct bcma_drv_cc *cc, u32 
mask, u32 value)
        return res;
 }
 
+/*
+ * If the bit is set to 0, chipcommon controlls this GPIO,
+ * if the bit is set to 1, it is used by some part of the chip and not our 
code.
+ */
 u32 bcma_chipco_gpio_control(struct bcma_drv_cc *cc, u32 mask, u32 value)
 {
        unsigned long flags;
-- 
1.7.10.4