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authorEduardo Valentin <edubezval@gmail.com>2014-11-08 04:24:39 +0300
committerEduardo Valentin <edubezval@gmail.com>2014-11-20 17:44:54 +0300
commit2251aef64a38db60f4ae7a4a83f9203c6791f196 (patch)
treeeb3fe5a0e6eb2c857f331ed39538a9fb2988939d /drivers/hwmon/ntc_thermistor.c
parent66fb84805134c39f00d7c2054c881faa50910390 (diff)
downloadlinux-2251aef64a38db60f4ae7a4a83f9203c6791f196.tar.xz
thermal: of: improve of-thermal sensor registration API
Different drivers request API extensions in of-thermal. For this reason, additional callbacks are required to fit the new drivers needs. The current API implementation expects the registering sensor driver to provide a get_temp and get_trend callbacks as function parameters. As the amount of callbacks is growing, this patch changes the existing implementation to use a .ops field to hold all the of thermal callbacks to sensor drivers. This patch also changes the existing of-thermal users to fit the new API design. No functional change is introduced in this patch. Cc: Alexandre Courbot <gnurou@gmail.com> Cc: devicetree@vger.kernel.org Cc: Grant Likely <grant.likely@linaro.org> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Jean Delvare <jdelvare@suse.de> Cc: linux-kernel@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-tegra@vger.kernel.org Cc: lm-sensors@lm-sensors.org Cc: Rob Herring <robh+dt@kernel.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Zhang Rui <rui.zhang@intel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Mikko Perttunen <mikko.perttunen@kapsi.fi> Reviewed-by: Mikko Perttunen <mikko.perttunen@kapsi.fi> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/hwmon/ntc_thermistor.c')
-rw-r--r--drivers/hwmon/ntc_thermistor.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c
index 4ff89b2482e4..bca8521c8a9b 100644
--- a/drivers/hwmon/ntc_thermistor.c
+++ b/drivers/hwmon/ntc_thermistor.c
@@ -486,6 +486,10 @@ static const struct attribute_group ntc_attr_group = {
.attrs = ntc_attributes,
};
+static const struct thermal_zone_of_device_ops ntc_of_thermal_ops = {
+ .get_temp = ntc_read_temp,
+};
+
static int ntc_thermistor_probe(struct platform_device *pdev)
{
const struct of_device_id *of_id =
@@ -579,7 +583,7 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
pdev_id->name);
data->tz = thermal_zone_of_sensor_register(data->dev, 0, data->dev,
- ntc_read_temp, NULL);
+ &ntc_of_thermal_ops);
if (IS_ERR(data->tz)) {
dev_dbg(&pdev->dev, "Failed to register to thermal fw.\n");
data->tz = NULL;