diff options
| author | Andy Walls <awalls@radix.net> | 2008-12-20 23:26:38 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 09:39:23 -0200 |
| commit | 57e24b629a5282bee24aaff44977270a3e462041 (patch) | |
| tree | 6e2206b9162162dfa540527426d9d49b351294e3 /drivers | |
| parent | 15029b39bb95a765b57ad81f5062718b10422072 (diff) | |
V4L/DVB (9936): cx18: Disable locking of Video and Audio PLL for analog captures
Disable AV_LOCK, locking of audio PLL to video PLL in the cx18-av-core for
analog captures. It seems to have adverse effects on captures from
SVideo and CVBS sources with current clock & crystal settings in the driver.
Many thanks to Jeff Campbell and Mike Bradley for reporting this problem,
and suggesting the solution and performing extensive testing to support their
suggestion.
Reported-by: Jeff Campbell <jac1dlists@gmail.com>
Reported-by: Mike Bradley <mike.bradley@incanetworks.com>
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/cx18/cx18-av-audio.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/media/video/cx18/cx18-av-audio.c b/drivers/media/video/cx18/cx18-av-audio.c index fd85b9b2d24..148f710974d 100644 --- a/drivers/media/video/cx18/cx18-av-audio.c +++ b/drivers/media/video/cx18/cx18-av-audio.c @@ -57,11 +57,11 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) cx18_av_write4(cx, 0x12c, 0x11202fff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x0d2ef8 = 107999.000 * 8 = * ((8 samples/32,000) * (13,500,000 * 8) * 4 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa10d2ef8); + cx18_av_write4(cx, 0x128, 0xa00d2ef8); break; case 44100: @@ -82,11 +82,11 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) cx18_av_write4(cx, 0x12c, 0x112092ff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x1d4bf8 = 239999.000 * 8 = * ((49 samples/44,100) * (13,500,000 * 8) * 2 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa11d4bf8); + cx18_av_write4(cx, 0x128, 0xa01d4bf8); break; case 48000: @@ -107,11 +107,11 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) cx18_av_write4(cx, 0x12c, 0x11205fff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x1193f8 = 143999.000 * 8 = * ((4 samples/48,000) * (13,500,000 * 8) * 16 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa11193f8); + cx18_av_write4(cx, 0x128, 0xa01193f8); break; } } else { @@ -141,11 +141,11 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) cx18_av_write4(cx, 0x12c, 0x11201fff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x0d2ef8 = 107999.000 * 8 = * ((8 samples/32,000) * (13,500,000 * 8) * 4 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa10d2ef8); + cx18_av_write4(cx, 0x128, 0xa00d2ef8); break; case 44100: @@ -170,11 +170,11 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) cx18_av_write4(cx, 0x12c, 0x112061ff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x1d4bf8 = 239999.000 * 8 = * ((49 samples/44,100) * (13,500,000 * 8) * 2 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa11d4bf8); + cx18_av_write4(cx, 0x128, 0xa01d4bf8); break; case 48000: @@ -199,11 +199,11 @@ static int set_audclk_freq(struct cx18 *cx, u32 freq) cx18_av_write4(cx, 0x12c, 0x11203fff); /* - * EN_AV_LOCK = 1 + * EN_AV_LOCK = 0 * VID_COUNT = 0x1193f8 = 143999.000 * 8 = * ((4 samples/48,000) * (13,500,000 * 8) * 16 - 1) * 8 */ - cx18_av_write4(cx, 0x128, 0xa11193f8); + cx18_av_write4(cx, 0x128, 0xa01193f8); break; } } |