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path: root/drivers/staging/cx25821/cx25821-gpio.c
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Diffstat (limited to 'drivers/staging/cx25821/cx25821-gpio.c')
-rw-r--r--drivers/staging/cx25821/cx25821-gpio.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/staging/cx25821/cx25821-gpio.c b/drivers/staging/cx25821/cx25821-gpio.c
index e8a37b47e437..2f154b3658a1 100644
--- a/drivers/staging/cx25821/cx25821-gpio.c
+++ b/drivers/staging/cx25821/cx25821-gpio.c
@@ -31,7 +31,7 @@ void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
u32 gpio_register = 0;
u32 value = 0;
- // Check for valid pinNumber
+ /* Check for valid pinNumber */
if (pin_number >= 47)
return;
@@ -39,14 +39,14 @@ void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
bit = pin_number - 31;
gpio_oe_reg = GPIO_HI_OE;
}
- // Here we will make sure that the GPIOs 0 and 1 are output. keep the rest as is
+ /* Here we will make sure that the GPIOs 0 and 1 are output. keep the
+ * rest as is */
gpio_register = cx_read(gpio_oe_reg);
- if (pin_logic_value == 1) {
+ if (pin_logic_value == 1)
value = gpio_register | Set_GPIO_Bit(bit);
- } else {
+ else
value = gpio_register & Clear_GPIO_Bit(bit);
- }
cx_write(gpio_oe_reg, value);
}
@@ -58,11 +58,12 @@ static void cx25821_set_gpiopin_logicvalue(struct cx25821_dev *dev,
u32 gpio_reg = GPIO_LO;
u32 value = 0;
- // Check for valid pinNumber
+ /* Check for valid pinNumber */
if (pin_number >= 47)
return;
- cx25821_set_gpiopin_direction(dev, pin_number, 0); // change to output direction
+ /* change to output direction */
+ cx25821_set_gpiopin_direction(dev, pin_number, 0);
if (pin_number > 31) {
bit = pin_number - 31;
@@ -71,25 +72,23 @@ static void cx25821_set_gpiopin_logicvalue(struct cx25821_dev *dev,
value = cx_read(gpio_reg);
- if (pin_logic_value == 0) {
+ if (pin_logic_value == 0)
value &= Clear_GPIO_Bit(bit);
- } else {
+ else
value |= Set_GPIO_Bit(bit);
- }
cx_write(gpio_reg, value);
}
void cx25821_gpio_init(struct cx25821_dev *dev)
{
- if (dev == NULL) {
+ if (dev == NULL)
return;
- }
switch (dev->board) {
case CX25821_BOARD_CONEXANT_ATHENA10:
default:
- //set GPIO 5 to select the path for Medusa/Athena
+ /* set GPIO 5 to select the path for Medusa/Athena */
cx25821_set_gpiopin_logicvalue(dev, 5, 1);
mdelay(20);
break;