cx231xx: Colibri carrier offset was wrong for PAL/M
The carrier offset check at cx231xx is incomplete. I got here one concrete case
where it is broken: if PAL/M is used (and this is the default for Pixelview SBTVD),
the routine will return zero, and the device will be programmed incorrectly,
producing a bad image. A workaround were to change to NTSC and back to PAL/M,
but the better is to just fix the code ;)
PS.: The checks there for other video standards are incomplete. the proper
solution is to fix the routine in a way that it will always return the proper
value for any valid V4L2_STD.
Cc: stable@xxxxxxxxxx
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
diff --git a/drivers/media/video/cx231xx/cx231xx-avcore.c b/drivers/media/video/cx231xx/cx231xx-avcore.c
index 0903773..d52955c 100644
--- a/drivers/media/video/cx231xx/cx231xx-avcore.c
+++ b/drivers/media/video/cx231xx/cx231xx-avcore.c
@@ -1540,7 +1540,7 @@ u32 cx231xx_Get_Colibri_CarrierOffset(u32 mode, u32 standerd)
if (mode == TUNER_MODE_FM_RADIO) {
colibri_carrier_offset = 1100000;
- } else if (standerd & (V4L2_STD_NTSC | V4L2_STD_NTSC_M_JP)) {
+ } else if (standerd & (V4L2_STD_MN | V4L2_STD_NTSC_M_JP)) {
colibri_carrier_offset = 4832000; /*4.83MHz */
} else if (standerd & (V4L2_STD_PAL_B | V4L2_STD_PAL_G)) {
colibri_carrier_offset = 2700000; /*2.70MHz */
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