[media] cx231xx: Allow some boards to not use I2C port 3

Some devices don't need to use it. So allow to just disable this logic.
Having it enabled on some devices cause power management to complain,
generating error -71.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 3 insertions, 0 deletions

diff --git a/drivers/media/video/cx231xx/cx231xx-avcore.c b/drivers/media/video/cx231xx/cx231xx-avcore.c
index b80bccfa9b2..62843d39817 100644
--- a/drivers/media/video/cx231xx/cx231xx-avcore.c
+++ b/drivers/media/video/cx231xx/cx231xx-avcore.c
@@ -1271,6 +1271,8 @@ int cx231xx_enable_i2c_port_3(struct cx231xx *dev, bool is_port_3)
         int status = 0;
         bool current_is_port_3;
 
+        if (dev->board.dont_use_port_3)
+                is_port_3 = false;
         status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
                                        PWR_CTL_EN, value, 4);
         if (status < 0)
diff --git a/drivers/media/video/cx231xx/cx231xx.h b/drivers/media/video/cx231xx/cx231xx.h
index b72503d625b..e1c222b0520 100644
--- a/drivers/media/video/cx231xx/cx231xx.h
+++ b/drivers/media/video/cx231xx/cx231xx.h
@@ -357,6 +357,7 @@ struct cx231xx_board {
         unsigned int valid:1;
         unsigned int no_alt_vanc:1;
         unsigned int external_av:1;
+        unsigned int dont_use_port_3:1;
 
         unsigned char xclk, i2c_speed;