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

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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>
This commit is contained in:
Yueyao Zhu 2017-05-09 09:04:55 -07:00 committed by Greg Kroah-Hartman
parent 227383f8c2
commit aac53ee455
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/typec/fusb302/fusb302.c
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@ -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;