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[media] cx25840: fix vsrc/hsrc usage on cx23888 designs

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The location of the vsrc/hsrc registers moved in the cx23888, causing
the s_mbus call to fail prematurely indicating that "720x480 is not a
valid size". The function bailed out before many pertinent registers
were set related to the scaler (causing unexpected results in video
rendering when doing raw video capture).

Use the correct registers for the cx23888.

Validated with the following boards:

HVR-1800 retail (0070:7801)
HVR-1800 OEM (0070:7809)
HVR-1850 retail (0070:8541)

Thanks to Steven Toth and Hauppauge for	loaning	me various boards to
regression test with.

Reported-by: Jonathan <sitten74490@mypacks.net>
Thanks-to: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Devin Heitmueler <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Devin Heitmueller 2012-07-01 16:15:12 -03:00 committed by Mauro Carvalho Chehab
parent d90133ec58
commit b5c5c17bab
1 changed files with 14 additions and 4 deletions
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18
drivers/media/video/cx25840/cx25840-core.c
View file

@ -1380,11 +1380,21 @@ static int cx25840_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt
fmt->field = V4L2_FIELD_INTERLACED;
fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
if (is_cx23888(state)) {
Vsrc = (cx25840_read(client, 0x42a) & 0x3f) << 4;
Vsrc |= (cx25840_read(client, 0x429) & 0xf0) >> 4;
} else {
Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4;
Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4;
}
Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
if (is_cx23888(state)) {
Hsrc = (cx25840_read(client, 0x426) & 0x3f) << 4;
Hsrc |= (cx25840_read(client, 0x425) & 0xf0) >> 4;
} else {
Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4;
Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4;
}
Vlines = fmt->height + (is_50Hz ? 4 : 7);