V4L/DVB (7925): cx18: ensure that the xceive pin is always asserted on init.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/media/video/cx18/cx18-gpio.c b/drivers/media/video/cx18/cx18-gpio.c
index bb8bc86086d0..1e0d32b992f9 100644
--- a/drivers/media/video/cx18/cx18-gpio.c
+++ b/drivers/media/video/cx18/cx18-gpio.c
@@ -62,12 +62,14 @@ void cx18_gpio_init(struct cx18 *cx)
         gpio_dir = cx->card->gpio_init.direction;
         gpio_val = cx->card->gpio_init.initial_value;
 
+        if (cx->card->xceive_pin) {
+                gpio_dir |= 1 << cx->card->xceive_pin;
+                gpio_val |= 1 << cx->card->xceive_pin;
+        }
+
         if (gpio_dir == 0)
                 return;
 
-        gpio_dir |= 1 << cx->card->xceive_pin;
-        gpio_val |= 1 << cx->card->xceive_pin;
-
         CX18_DEBUG_INFO("GPIO initial dir: %08x/%08x out: %08x/%08x\n",
                    read_reg(CX18_REG_GPIO_DIR1), read_reg(CX18_REG_GPIO_DIR2),
                    read_reg(CX18_REG_GPIO_OUT1), read_reg(CX18_REG_GPIO_OUT2));