From: Wei Ni <wni@nvidia.com>
To: <thierry.reding@gmail.com>, <edubezval@gmail.com>, <rui.zhang@intel.com>
Cc: <MLongnecker@nvidia.com>, <swarren@wwwdotorg.org>,
<mikko.perttunen@kapsi.fi>, <linux-tegra@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, Wei Ni <wni@nvidia.com>
Subject: [PATCH v6 07/12] thermal: of-thermal: allow setting trip_temp on hardware
Date: Mon, 22 Feb 2016 16:09:15 +0800 [thread overview]
Message-ID: <1456128555-29058-1-git-send-email-wni@nvidia.com> (raw)
In current of-thermal, the .set_trip_temp only support to
set trip_temp for SW. But some sensors support to set
trip_temp on hardware, so that can trigger interrupt,
shutdown or any other events.
This patch adds .set_trip_temp() callback in
thermal_zone_of_device_ops{}, so that the sensor device can
use it to set trip_temp on hardware.
Signed-off-by: Wei Ni <wni@nvidia.com>
---
drivers/thermal/of-thermal.c | 8 ++++++++
include/linux/thermal.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index be4eedcb839a..fbfc5a52dc27 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -331,6 +331,14 @@ static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip,
if (trip >= data->ntrips || trip < 0)
return -EDOM;
+ if (data->ops->set_trip_temp) {
+ int ret;
+
+ ret = data->ops->set_trip_temp(data->sensor_data, trip, temp);
+ if (ret)
+ return ret;
+ }
+
/* thermal framework should take care of data->mask & (1 << trip) */
data->trips[trip].temperature = temp;
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index e13a1ace50e9..e69296dc583b 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -338,6 +338,7 @@ struct thermal_zone_of_device_ops {
int (*get_temp)(void *, int *);
int (*get_trend)(void *, long *);
int (*set_emul_temp)(void *, int);
+ int (*set_trip_temp)(void *, int, int);
};
/**
--
1.9.1
next reply other threads:[~2016-02-22 8:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-22 8:09 Wei Ni [this message]
2016-02-23 2:16 ` [PATCH v6 07/12] thermal: of-thermal: allow setting trip_temp on hardware Wei Ni
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1456128555-29058-1-git-send-email-wni@nvidia.com \
--to=wni@nvidia.com \
--cc=MLongnecker@nvidia.com \
--cc=edubezval@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=mikko.perttunen@kapsi.fi \
--cc=rui.zhang@intel.com \
--cc=swarren@wwwdotorg.org \
--cc=thierry.reding@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).