staging: typec: fusb302: Fix chip->vbus_present init value

FUSB_REG_STATUS0 & FUSB_REG_STATUS0_VBUSOK = 0x40 & 0x80 is always
zero. Fix the code to what it is intended to be: check the VBUSOK
bit of the value read from address FUSB_REG_STATUS0.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Yueyao Zhu <yueyao.zhu@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/typec/fusb302/fusb302.c b/drivers/staging/typec/fusb302/fusb302.c
index aa460f9..d8b50b4 100644 (file)
--- a/drivers/staging/typec/fusb302/fusb302.c
+++ b/drivers/staging/typec/fusb302/fusb302.c
@@ -489,7 +489,7 @@ static int tcpm_init(struct tcpc_dev *dev)
        ret = fusb302_i2c_read(chip, FUSB_REG_STATUS0, &data);
        if (ret < 0)
                return ret;
-       chip->vbus_present = !!(FUSB_REG_STATUS0 & FUSB_REG_STATUS0_VBUSOK);
+       chip->vbus_present = !!(data & FUSB_REG_STATUS0_VBUSOK);
        ret = fusb302_i2c_read(chip, FUSB_REG_DEVICE_ID, &data);
        if (ret < 0)
                return ret;