From: Mauro Carvalho Chehab This patch fixes PAL-M chroma subcarrier frequency (FSC) to its correct value of 3.5756115 MHz and adjusts horizontal total samples for PAL-M, according with formula Line Draw Time / (4*FSC). Signed-off-by: Mauro Carvalho Chehab Cc: Signed-off-by: Andrew Morton --- drivers/media/video/cx88/cx88-core.c | 9 +++++++++ 1 files changed, 9 insertions(+) diff -puN drivers/media/video/cx88/cx88-core.c~v4l-pal-m-chroma-subcarrier-frequency-fix drivers/media/video/cx88/cx88-core.c --- 25/drivers/media/video/cx88/cx88-core.c~v4l-pal-m-chroma-subcarrier-frequency-fix Mon May 23 17:04:09 2005 +++ 25-akpm/drivers/media/video/cx88/cx88-core.c Mon May 23 17:04:09 2005 @@ -736,6 +736,10 @@ static unsigned int inline norm_fsc8(str { static const unsigned int ntsc = 28636360; static const unsigned int pal = 35468950; + static const unsigned int palm = 28604892; + + if (norm->id & V4L2_STD_PAL_M) + return palm; return (norm->id & V4L2_STD_625_50) ? pal : ntsc; } @@ -749,6 +753,11 @@ static unsigned int inline norm_notchfil static unsigned int inline norm_htotal(struct cx88_tvnorm *norm) { + /* Should always be Line Draw Time / (4*FSC) */ + + if (norm->id & V4L2_STD_PAL_M) + return 909; + return (norm->id & V4L2_STD_625_50) ? 1135 : 910; } _