hwmon: (w83627ehf) Force initial bank selection

commit 3300fb4f88688029fff8dfb9ec0734f6e4cba3e7 upstream.

Don't assume bank 0 is selected at device probe time. This may not be
the case. Force bank selection at first register access to guarantee
that we read the right registers upon driver loading.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index 54922ed129787df0e6a6c4fe92f0115d88d303b5..88effda191984cd24aea82cc78d01a762473ba54 100644 (file)
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -2082,6 +2082,7 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
        mutex_init(&data->lock);
        mutex_init(&data->update_lock);
        data->name = w83627ehf_device_names[sio_data->kind];
+       data->bank = 0xff;              /* Force initial bank selection */
        platform_set_drvdata(pdev, data);
 
        /* 627EHG and 627EHF have 10 voltage inputs; 627DHG and 667HG have 9 */