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From: Goffredo Baroncelli <kreijack@gmail.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "\"" <jdelvare@suse.de>, "\"" <linux-kernel@vger.kernel.org>,
	"\"" <bryan@whatroute.net>,
	Goffredo Baroncelli <kreijack@inwind.it>
Subject: [PATCH 4/4] Return the fan speed via sysfs
Date: Fri,  1 Aug 2014 14:00:50 +0000	[thread overview]
Message-ID: <1406901650-20841-5-git-send-email-kreijack@inwind.it> (raw)
In-Reply-To: <1406901650-20841-1-git-send-email-kreijack@inwind.it>

Return the fan speed via sysfs:
/sys/devices/temperature/fan_level

This patch is copied from the Bryan Christianson's patch (see
debian bug #741663)

Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it>
---
 drivers/macintosh/therm_windtunnel.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index 0c4eb85..a2af7db 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -111,9 +111,15 @@ show_case_temperature( struct device *dev, struct device_attribute *attr, char *
 	return sprintf(buf, "%d.%d\n", x.casetemp>>8, (x.casetemp & 255)*10/256 );
 }
 
+static ssize_t
+show_fan_level( struct device *dev, struct device_attribute *attr, char *buf )
+{
+	return sprintf(buf, "%d\n", 11 - x.fan_level );
+}
+
 static DEVICE_ATTR(cpu_temperature, S_IRUGO, show_cpu_temperature, NULL );
 static DEVICE_ATTR(case_temperature, S_IRUGO, show_case_temperature, NULL );
-
+static DEVICE_ATTR(fan_level, S_IRUGO, show_fan_level, NULL );
 
 
 /************************************************************************/
@@ -265,6 +271,7 @@ setup_hardware( void )
 
 	err = device_create_file( &x.of_dev->dev, &dev_attr_cpu_temperature );
 	err |= device_create_file( &x.of_dev->dev, &dev_attr_case_temperature );
+	err |= device_create_file( &x.of_dev->dev, &dev_attr_fan_level );
 	if (err)
 		printk(KERN_WARNING
 			"Failed to create temperature attribute file(s).\n");
@@ -275,6 +282,7 @@ restore_regs( void )
 {
 	device_remove_file( &x.of_dev->dev, &dev_attr_cpu_temperature );
 	device_remove_file( &x.of_dev->dev, &dev_attr_case_temperature );
+	device_remove_file( &x.of_dev->dev, &dev_attr_fan_level );
 
 	write_reg( x.fan, 0x01, x.r1, 1 );
 	write_reg( x.fan, 0x20, x.r20, 1 );
-- 
2.0.1


  parent reply	other threads:[~2014-08-01 14:01 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-01 14:00 [PATCH][v2] therm_windtunnel doesn't work properly on PowerMac G4 Goffredo Baroncelli
2014-08-01 14:00 ` [PATCH 1/4] Update drivers names to the ones invoked by i2c-powermac Goffredo Baroncelli
2014-08-01 14:00 ` [PATCH 2/4] Remove attach_method because un-used Goffredo Baroncelli
2014-08-01 14:00 ` [PATCH 3/4] Add the "verbose" module option Goffredo Baroncelli
2014-08-03 14:12   ` Jean Delvare
2014-08-03 15:12     ` Goffredo Baroncelli
2014-08-03 15:52       ` Jean Delvare
2014-08-03 16:36         ` Goffredo Baroncelli
2014-08-04  8:46           ` Jean Delvare
2014-08-04 17:10             ` Goffredo Baroncelli
2014-08-05  8:59               ` Jean Delvare
2014-08-01 14:00 ` Goffredo Baroncelli [this message]
2014-08-03 14:17   ` [PATCH 4/4] Return the fan speed via sysfs Jean Delvare
2014-08-03 15:27     ` Goffredo Baroncelli
2014-08-03 15:59       ` Jean Delvare
2014-08-03 16:42         ` Goffredo Baroncelli
2014-08-04  8:44           ` Jean Delvare

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