From: Kevin Fitch <kfitch42@xxxxxxxxx>
It's been reported that CJC7113 devices are returning
all 1s when reading register 0:
"1111111111111111" found @ 0x4a (stk1160)
This new device is apparently compatible with SA7113, so let's
add a quirk to allow its autodetection. Given there isn't
any known differences with SAA7113, this commit does not
introduces a new saa711x_model value.
Reported-by: Philippe Desrochers <desrochers.philippe@xxxxxxxxx>
Signed-off-by: Kevin Fitch <kfitch42@xxxxxxxxx>
Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxxxxxxxxx>
---
drivers/media/i2c/saa7115.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/media/i2c/saa7115.c b/drivers/media/i2c/saa7115.c
index 24d2b76dbe97..04f266d0a1ef 100644
--- a/drivers/media/i2c/saa7115.c
+++ b/drivers/media/i2c/saa7115.c
@@ -1794,6 +1794,21 @@ static int saa711x_detect_chip(struct i2c_client *client,
return GM7113C;
}
+ /* Check if it is a CJC7113 */
+ if (!memcmp(name, "1111111111111111", CHIP_VER_SIZE)) {
+ strlcpy(name, "cjc7113", CHIP_VER_SIZE);
+
+ if (!autodetect && strcmp(name, id->name))
+ return -EINVAL;
+
+ v4l_dbg(1, debug, client,
+ "It seems to be a %s chip (%*ph) @ 0x%x.\n",
+ name, 16, chip_ver, client->addr << 1);
+
+ /* CJC7113 seems to be SAA7113-compatible */
+ return SAA7113;
+ }
+
/* Chip was not discovered. Return its ID and don't bind */
v4l_dbg(1, debug, client, "chip %*ph @ 0x%x is unknown.\n",
16, chip_ver, client->addr << 1);
--
2.7.0
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