[PATCH 1/1] iio: light: vcnl4035: fixed chip ID check

From: Frank Li
Date: Thu Apr 27 2023 - 17:31:15 EST


VCNL4035 register(0xE) ID_L and ID_M define as:

ID_L: 0x80
ID_H: 7:6 (0:0)
5:4 (0:0) slave address = 0x60 (7-bit)
(0:1) slave address = 0x51 (7-bit)
(1:0) slave address = 0x40 (7-bit)
(1:0) slave address = 0x41 (7-bit)
3:0 Version code default (0:0:0:0)

So just check ID_L.

Fixes: 55707294c4eb ("iio: light: Add support for vishay vcnl4035")

Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
drivers/iio/light/vcnl4035.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/light/vcnl4035.c b/drivers/iio/light/vcnl4035.c
index 3ed37f6057fb..8b7769930f3b 100644
--- a/drivers/iio/light/vcnl4035.c
+++ b/drivers/iio/light/vcnl4035.c
@@ -413,7 +413,7 @@ static int vcnl4035_init(struct vcnl4035_data *data)
return ret;
}

- if (id != VCNL4035_DEV_ID_VAL) {
+ if ((id & 0xff) != VCNL4035_DEV_ID_VAL) {
dev_err(&data->client->dev, "Wrong id, got %x, expected %x\n",
id, VCNL4035_DEV_ID_VAL);
return -ENODEV;
--
2.34.1