From patchwork Thu Dec 13 13:56:59 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [054/241] hwmon: (w83627ehf) Force initial bank selection Date: Thu, 13 Dec 2012 03:56:59 -0000 From: Herton Ronaldo Krzesinski X-Patchwork-Id: 205905 Message-Id: <1355407206-17100-55-git-send-email-herton.krzesinski@canonical.com> To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Jean Delvare 3.5.7.2 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Jean Delvare 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 Reviewed-by: Guenter Roeck Signed-off-by: Herton Ronaldo Krzesinski --- drivers/hwmon/w83627ehf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 54922ed..88effda 100644 --- 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 */