lkml.org 
[lkml]   [2006]   [Jan]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 03/16] Add probe check for the tda9840.
Date
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/

\
 
 \ /
  Last update: 2006-01-23 21:34    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site