[media] cx231xx: Only change gpio direction when needed

Acked-by: NSri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx231xx/cx231xx-cards.c

@@ -495,10 +495,11 @@ void cx231xx_pre_card_setup(struct cx231xx *dev)
 	if (dev->board.tuner_gpio) {
 		cx231xx_set_gpio_direction(dev, dev->board.tuner_gpio->bit, 1);
 		cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit, 1);
+	}
+	if (dev->board.tuner_sif_gpio >= 0)
 		cx231xx_set_gpio_direction(dev, dev->board.tuner_sif_gpio, 1);
 
 	/* request some modules if any required */
-	}
 
 	/* set the mode to Analog mode initially */
 	cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);

drivers/media/video/cx231xx/cx231xx.h

@@ -333,9 +333,10 @@ struct cx231xx_board {
 	struct cx231xx_reg_seq *dvb_gpio;
 	struct cx231xx_reg_seq *suspend_gpio;
 	struct cx231xx_reg_seq *tuner_gpio;
-	u8 tuner_sif_gpio;
-	u8 tuner_scl_gpio;
-	u8 tuner_sda_gpio;
+		/* Negative means don't use it */
+	s8 tuner_sif_gpio;
+	s8 tuner_scl_gpio;
+	s8 tuner_sda_gpio;
 
 	/* PIN ctrl */
 	u32 ctl_pin_status_mask;