From de98cdaf7ead419fe8b0a0a636ffb175489958fe Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 1 Oct 2006 17:56:32 -0300 Subject: [PATCH] V4L/DVB (4688): Fix msp343xG handling (regression from 2.6.16) The msp3430G and msp3435G models cannot do Automatic Standard Detection. So these should be forced to BTSC. These chips are early production versions for the msp34xxG series and are quite rare. The workaround for kernel 2.6.18 is to use 'standard=32' as msp3400 module option. Due to broken handling of the 'standard' option in 2.6.17 there is no workaround possible for that kernel. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/msp3400-driver.c | 2 ++ drivers/media/video/msp3400-driver.h | 1 + drivers/media/video/msp3400-kthreads.c | 5 +++-- 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c index 56246b8578..cf43df3fe7 100644 --- a/drivers/media/video/msp3400-driver.c +++ b/drivers/media/video/msp3400-driver.c @@ -904,6 +904,8 @@ static int msp_attach(struct i2c_adapter *adapter, int address, int kind) state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1; /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */ state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2; + /* The msp343xG supports BTSC only and cannot do Automatic Standard Detection. */ + state->force_btsc = msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3; state->opmode = opmode; if (state->opmode == OPMODE_AUTO) { diff --git a/drivers/media/video/msp3400-driver.h b/drivers/media/video/msp3400-driver.h index 545e4ac094..7531efa161 100644 --- a/drivers/media/video/msp3400-driver.h +++ b/drivers/media/video/msp3400-driver.h @@ -64,6 +64,7 @@ struct msp_state { u8 has_sound_processing; u8 has_virtual_dolby_surround; u8 has_dolby_pro_logic; + u8 force_btsc; int radio; int opmode; diff --git a/drivers/media/video/msp3400-kthreads.c b/drivers/media/video/msp3400-kthreads.c index ed02ff8113..4c7f85b566 100644 --- a/drivers/media/video/msp3400-kthreads.c +++ b/drivers/media/video/msp3400-kthreads.c @@ -960,9 +960,10 @@ int msp34xxg_thread(void *data) /* setup the chip*/ msp34xxg_reset(client); - state->std = state->radio ? 0x40 : msp_standard; - /* start autodetect */ + state->std = state->radio ? 0x40 : + (state->force_btsc && msp_standard == 1) ? 32 : msp_standard; msp_write_dem(client, 0x20, state->std); + /* start autodetect */ if (state->std != 1) goto unmute; -- 2.39.5