From 90d684520e3484b913647bf1c0026f795a087905 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 8 Oct 2006 14:46:05 -0400 Subject: [PATCH] V4L: Fix msp343xG handling regression 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. Due to broken handling of the 'standard' option in 2.6.17, there is no workaround possible. Signed-off-by: Hans Verkuil Signed-off-by: Michael Krufky Signed-off-by: Greg Kroah-Hartman --- drivers/media/video/msp3400-driver.c | 2 ++ drivers/media/video/msp3400-driver.h | 1 + drivers/media/video/msp3400-kthreads.c | 7 ++++--- 3 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c index b806999d6e0fc..dd232192746d1 100644 --- a/drivers/media/video/msp3400-driver.c +++ b/drivers/media/video/msp3400-driver.c @@ -942,6 +942,8 @@ 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 4e451049013de..6359d74e6fca4 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 633a102137893..a0ac592426e10 100644 --- a/drivers/media/video/msp3400-kthreads.c +++ b/drivers/media/video/msp3400-kthreads.c @@ -949,11 +949,12 @@ int msp34xxg_thread(void *data) /* setup the chip*/ msp34xxg_reset(client); - state->std = state->radio ? 0x40 : msp_standard; - if (state->std != 1) - goto unmute; + state->std = state->radio ? 0x40 : + (state->force_btsc && msp_standard == 1) ? 32 : msp_standard; /* start autodetect */ msp_write_dem(client, 0x20, state->std); + if (state->std != 1) + goto unmute; /* watch autodetect */ v4l_dbg(1, msp_debug, client, "started autodetect, waiting for result\n"); -- 2.47.2