Messages in this thread Patch in this message | | | From | mchehab@infradea ... | Subject | [PATCH 03/16] Add probe check for the tda9840. | Date | Mon, 23 Jan 2006 18:24:43 -0200 |
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From: Hans Verkuil <hverkuil@xs4all.nl>
- Add probe check for the tda9840 to prevent misdetection of a Micronas dpl3518a as a tda9840.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> ---
drivers/media/video/tvaudio.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c index 6d03b9b..c8e5ad0 100644 --- a/drivers/media/video/tvaudio.c +++ b/drivers/media/video/tvaudio.c @@ -390,6 +390,14 @@ static void tda9840_setmode(struct CHIPS chip_write(chip, TDA9840_SW, t); } +static int tda9840_checkit(struct CHIPSTATE *chip) +{ + int rc; + rc = chip_read(chip); + /* lower 5 bits should be 0 */ + return ((rc & 0x1f) == 0) ? 1 : 0; +} + /* ---------------------------------------------------------------------- */ /* audio chip descriptions - defines+functions for tda985x */ @@ -1264,6 +1272,7 @@ static struct CHIPDESC chiplist[] = { .addr_hi = I2C_TDA9840 >> 1, .registers = 5, + .checkit = tda9840_checkit, .getmode = tda9840_getmode, .setmode = tda9840_setmode, .checkmode = generic_checkmode, - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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