Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755642AbbGCVSz (ORCPT ); Fri, 3 Jul 2015 17:18:55 -0400 Received: from gproxy6-pub.mail.unifiedlayer.com ([67.222.39.168]:37760 "HELO gproxy6-pub.mail.unifiedlayer.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755094AbbGCVSs (ORCPT ); Fri, 3 Jul 2015 17:18:48 -0400 X-Greylist: delayed 400 seconds by postgrey-1.27 at vger.kernel.org; Fri, 03 Jul 2015 17:18:48 EDT X-Authority-Analysis: v=2.1 cv=ItWNLtPg c=1 sm=1 tr=0 a=J7Q474dc+DFtUK1fo70nSg==:117 a=J7Q474dc+DFtUK1fo70nSg==:17 a=cNaOj0WVAAAA:8 a=f5113yIGAAAA:8 a=dSbym95GAAAA:8 a=ZhRHZX3j7ZUA:10 a=tvnXkgGHczcA:10 a=zOBTXjUuO1YA:10 a=JfrjZCsVR2zI58TONG8A:9 From: Constantine Shulyupin To: Jean Delvare , Guenter Roeck , lm-sensors@lm-sensors.org (open list:HARDWARE MONITORING), linux-kernel@vger.kernel.org (open list) Cc: Constantine Shulyupin Subject: [PATCH v2] hwmon: (nct7802) Add pwm control Date: Sat, 4 Jul 2015 00:11:51 +0300 Message-Id: <1435957911-19044-1-git-send-email-const@MakeLinux.com> X-Mailer: git-send-email 1.9.1 X-Identified-User: {1470:box668.bluehost.com:makelinu:makelinux.net} {sentby:smtp auth 84.228.198.137 authed with poster@makelinux.net} Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2946 Lines: 95 Notes: Some lines intentionally more than 80 characters because wrapping this lines decreases readability. The patch was checked with scripts/checkpatch.pl --max-line-length=88 Signed-off-by: Constantine Shulyupin --- drivers/hwmon/nct7802.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/drivers/hwmon/nct7802.c b/drivers/hwmon/nct7802.c index afa242d..104d8b9 100644 --- a/drivers/hwmon/nct7802.c +++ b/drivers/hwmon/nct7802.c @@ -102,6 +102,36 @@ static ssize_t store_temp_type(struct device *dev, return err ? : count; } +static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, char *buf) +{ + int ret = -1; + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct nct7802_data *data = dev_get_drvdata(dev); + unsigned int val = 0; + + ret = regmap_read(data->regmap, attr->index, &val); + if (ret < 0) + return ret; + + ret = sprintf(buf, "%d\n", val); + return ret; +} + +static ssize_t store_u8(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct nct7802_data *data = dev_get_drvdata(dev); + int err; + u8 val; + + err = kstrtou8(buf, 0, &val); + if (err < 0) + return err; + + err = regmap_write(data->regmap, attr->index, val); + return err ? : count; +} static int nct7802_read_temp(struct nct7802_data *data, u8 reg_temp, u8 reg_temp_low, int *temp) @@ -735,6 +765,11 @@ static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_alarm, NULL, 0x1a, 2); static SENSOR_DEVICE_ATTR_2(fan3_beep, S_IRUGO | S_IWUSR, show_beep, store_beep, 0x5b, 2); +/* 7.2.91... Fan Control Output Value */ +static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_u8, 0x60); +static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_u8, 0x61); +static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_u8, 0x62); + static struct attribute *nct7802_fan_attrs[] = { &sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, @@ -773,10 +808,22 @@ static struct attribute_group nct7802_fan_group = { .is_visible = nct7802_fan_is_visible, }; +static struct attribute *nct7802_pwm_attrs[] = { + &sensor_dev_attr_pwm1.dev_attr.attr, + &sensor_dev_attr_pwm2.dev_attr.attr, + &sensor_dev_attr_pwm3.dev_attr.attr, + NULL +}; + +static struct attribute_group nct7802_pwm_group = { + .attrs = nct7802_pwm_attrs, +}; + static const struct attribute_group *nct7802_groups[] = { &nct7802_temp_group, &nct7802_in_group, &nct7802_fan_group, + &nct7802_pwm_group, NULL }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/