25afe99b31
the support is still WIP. next steps are to make the pmic and ethernet work. this is the first commit to make sure nothing gets lost. Signed-off-by: John Crispin <blogic@openwrt.org> SVN-Revision: 47354
129 lines
3.7 KiB
Diff
129 lines
3.7 KiB
Diff
From 8c9c4ed500e92c10dc4965dcd00692b3102a328a Mon Sep 17 00:00:00 2001
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From: Sascha Hauer <s.hauer@pengutronix.de>
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Date: Wed, 13 May 2015 10:52:37 +0200
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Subject: [PATCH 18/76] thermal: of: always set sensor related callbacks
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Now that the thermal core treats -ENOSYS like the callbacks were
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not present at all we no longer have to overwrite the ops during
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runtime but instead can always set them and return -ENOSYS if no
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sensor is registered.
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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---
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drivers/thermal/of-thermal.c | 33 +++++++++++++--------------------
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1 file changed, 13 insertions(+), 20 deletions(-)
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diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
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index c84404d..b9c35bd 100644
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--- a/drivers/thermal/of-thermal.c
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+++ b/drivers/thermal/of-thermal.c
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@@ -91,7 +91,7 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz,
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{
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struct __thermal_zone *data = tz->devdata;
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- if (!data->ops->get_temp)
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+ if (!data->ops)
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return -EINVAL;
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return data->ops->get_temp(data->sensor_data, temp);
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@@ -178,7 +178,7 @@ static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
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struct __thermal_zone *data = tz->devdata;
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if (!data->ops || !data->ops->set_emul_temp)
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- return -EINVAL;
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+ return -ENOSYS;
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return data->ops->set_emul_temp(data->sensor_data, temp);
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}
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@@ -189,8 +189,8 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
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struct __thermal_zone *data = tz->devdata;
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int r;
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- if (!data->ops->get_trend)
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- return -EINVAL;
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+ if (!data->ops || !data->ops->get_trend)
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+ return -ENOSYS;
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r = data->ops->get_trend(data->sensor_data, trip, trend);
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if (r)
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@@ -366,6 +366,10 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
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}
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static struct thermal_zone_device_ops of_thermal_ops = {
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+ .get_temp = of_thermal_get_temp,
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+ .get_trend = of_thermal_get_trend,
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+ .set_emul_temp = of_thermal_set_emul_temp,
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+
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.get_mode = of_thermal_get_mode,
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.set_mode = of_thermal_set_mode,
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@@ -399,13 +403,13 @@ thermal_zone_of_add_sensor(struct device_node *zone,
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if (!ops)
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return ERR_PTR(-EINVAL);
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+ if (!ops->get_temp)
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+ return ERR_PTR(-EINVAL);
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+
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mutex_lock(&tzd->lock);
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tz->ops = ops;
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tz->sensor_data = data;
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- tzd->ops->get_temp = of_thermal_get_temp;
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- tzd->ops->get_trend = of_thermal_get_trend;
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- tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
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mutex_unlock(&tzd->lock);
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return tzd;
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@@ -535,9 +539,6 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
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return;
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mutex_lock(&tzd->lock);
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- tzd->ops->get_temp = NULL;
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- tzd->ops->get_trend = NULL;
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- tzd->ops->set_emul_temp = NULL;
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tz->ops = NULL;
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tz->sensor_data = NULL;
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@@ -845,7 +846,6 @@ int __init of_parse_thermal_zones(void)
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{
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struct device_node *np, *child;
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struct __thermal_zone *tz;
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- struct thermal_zone_device_ops *ops;
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np = of_find_node_by_name(NULL, "thermal-zones");
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if (!np) {
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@@ -869,29 +869,22 @@ int __init of_parse_thermal_zones(void)
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continue;
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}
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- ops = kmemdup(&of_thermal_ops, sizeof(*ops), GFP_KERNEL);
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- if (!ops)
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- goto exit_free;
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-
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tzp = kzalloc(sizeof(*tzp), GFP_KERNEL);
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- if (!tzp) {
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- kfree(ops);
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+ if (!tzp)
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goto exit_free;
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- }
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/* No hwmon because there might be hwmon drivers registering */
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tzp->no_hwmon = true;
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zone = thermal_zone_device_register(child->name, tz->ntrips,
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0, tz,
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- ops, tzp,
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+ &of_thermal_ops, tzp,
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tz->passive_delay,
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tz->polling_delay);
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if (IS_ERR(zone)) {
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pr_err("Failed to build %s zone %ld\n", child->name,
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PTR_ERR(zone));
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kfree(tzp);
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- kfree(ops);
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of_thermal_free_zone(tz);
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/* attempting to build remaining zones still */
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}
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--
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1.7.10.4
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