diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-15 01:37:05 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-15 01:37:05 (GMT) |
commit | 0d1d392f011b284bb4af0411b2d36e5d04e0f058 (patch) | |
tree | 081f99182bde3cc8af49b80b4e9df7d95476e8ed /drivers/base | |
parent | fa180eb448fa263cf18dd930143b515d27d70d7b (diff) | |
parent | 41ef2d5678d83af030125550329b6ae8b74618fa (diff) | |
download | linux-0d1d392f011b284bb4af0411b2d36e5d04e0f058.tar.xz |
Merge 3.9-rc7 into driver-core-next
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base')
-rw-r--r-- | drivers/base/power/qos.c | 60 | ||||
-rw-r--r-- | drivers/base/regmap/regcache-rbtree.c | 2 | ||||
-rw-r--r-- | drivers/base/regmap/regmap.c | 6 |
3 files changed, 52 insertions, 16 deletions
diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c index 5f74587e..71671c4 100644 --- a/drivers/base/power/qos.c +++ b/drivers/base/power/qos.c @@ -46,6 +46,7 @@ #include "power.h" static DEFINE_MUTEX(dev_pm_qos_mtx); +static DEFINE_MUTEX(dev_pm_qos_sysfs_mtx); static BLOCKING_NOTIFIER_HEAD(dev_pm_notifiers); @@ -216,12 +217,17 @@ void dev_pm_qos_constraints_destroy(struct device *dev) struct pm_qos_constraints *c; struct pm_qos_flags *f; - mutex_lock(&dev_pm_qos_mtx); + mutex_lock(&dev_pm_qos_sysfs_mtx); /* * If the device's PM QoS resume latency limit or PM QoS flags have been * exposed to user space, they have to be hidden at this point. */ + pm_qos_sysfs_remove_latency(dev); + pm_qos_sysfs_remove_flags(dev); + + mutex_lock(&dev_pm_qos_mtx); + __dev_pm_qos_hide_latency_limit(dev); __dev_pm_qos_hide_flags(dev); @@ -254,6 +260,8 @@ void dev_pm_qos_constraints_destroy(struct device *dev) out: mutex_unlock(&dev_pm_qos_mtx); + + mutex_unlock(&dev_pm_qos_sysfs_mtx); } /** @@ -558,6 +566,14 @@ static void __dev_pm_qos_drop_user_request(struct device *dev, kfree(req); } +static void dev_pm_qos_drop_user_request(struct device *dev, + enum dev_pm_qos_req_type type) +{ + mutex_lock(&dev_pm_qos_mtx); + __dev_pm_qos_drop_user_request(dev, type); + mutex_unlock(&dev_pm_qos_mtx); +} + /** * dev_pm_qos_expose_latency_limit - Expose PM QoS latency limit to user space. * @dev: Device whose PM QoS latency limit is to be exposed to user space. @@ -581,6 +597,8 @@ int dev_pm_qos_expose_latency_limit(struct device *dev, s32 value) return ret; } + mutex_lock(&dev_pm_qos_sysfs_mtx); + mutex_lock(&dev_pm_qos_mtx); if (IS_ERR_OR_NULL(dev->power.qos)) @@ -591,26 +609,27 @@ int dev_pm_qos_expose_latency_limit(struct device *dev, s32 value) if (ret < 0) { __dev_pm_qos_remove_request(req); kfree(req); + mutex_unlock(&dev_pm_qos_mtx); goto out; } - dev->power.qos->latency_req = req; + + mutex_unlock(&dev_pm_qos_mtx); + ret = pm_qos_sysfs_add_latency(dev); if (ret) - __dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_LATENCY); + dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_LATENCY); out: - mutex_unlock(&dev_pm_qos_mtx); + mutex_unlock(&dev_pm_qos_sysfs_mtx); return ret; } EXPORT_SYMBOL_GPL(dev_pm_qos_expose_latency_limit); static void __dev_pm_qos_hide_latency_limit(struct device *dev) { - if (!IS_ERR_OR_NULL(dev->power.qos) && dev->power.qos->latency_req) { - pm_qos_sysfs_remove_latency(dev); + if (!IS_ERR_OR_NULL(dev->power.qos) && dev->power.qos->latency_req) __dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_LATENCY); - } } /** @@ -619,9 +638,15 @@ static void __dev_pm_qos_hide_latency_limit(struct device *dev) */ void dev_pm_qos_hide_latency_limit(struct device *dev) { + mutex_lock(&dev_pm_qos_sysfs_mtx); + + pm_qos_sysfs_remove_latency(dev); + mutex_lock(&dev_pm_qos_mtx); __dev_pm_qos_hide_latency_limit(dev); mutex_unlock(&dev_pm_qos_mtx); + + mutex_unlock(&dev_pm_qos_sysfs_mtx); } EXPORT_SYMBOL_GPL(dev_pm_qos_hide_latency_limit); @@ -649,6 +674,8 @@ int dev_pm_qos_expose_flags(struct device *dev, s32 val) } pm_runtime_get_sync(dev); + mutex_lock(&dev_pm_qos_sysfs_mtx); + mutex_lock(&dev_pm_qos_mtx); if (IS_ERR_OR_NULL(dev->power.qos)) @@ -659,16 +686,19 @@ int dev_pm_qos_expose_flags(struct device *dev, s32 val) if (ret < 0) { __dev_pm_qos_remove_request(req); kfree(req); + mutex_unlock(&dev_pm_qos_mtx); goto out; } - dev->power.qos->flags_req = req; + + mutex_unlock(&dev_pm_qos_mtx); + ret = pm_qos_sysfs_add_flags(dev); if (ret) - __dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_FLAGS); + dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_FLAGS); out: - mutex_unlock(&dev_pm_qos_mtx); + mutex_unlock(&dev_pm_qos_sysfs_mtx); pm_runtime_put(dev); return ret; } @@ -676,10 +706,8 @@ EXPORT_SYMBOL_GPL(dev_pm_qos_expose_flags); static void __dev_pm_qos_hide_flags(struct device *dev) { - if (!IS_ERR_OR_NULL(dev->power.qos) && dev->power.qos->flags_req) { - pm_qos_sysfs_remove_flags(dev); + if (!IS_ERR_OR_NULL(dev->power.qos) && dev->power.qos->flags_req) __dev_pm_qos_drop_user_request(dev, DEV_PM_QOS_FLAGS); - } } /** @@ -689,9 +717,15 @@ static void __dev_pm_qos_hide_flags(struct device *dev) void dev_pm_qos_hide_flags(struct device *dev) { pm_runtime_get_sync(dev); + mutex_lock(&dev_pm_qos_sysfs_mtx); + + pm_qos_sysfs_remove_flags(dev); + mutex_lock(&dev_pm_qos_mtx); __dev_pm_qos_hide_flags(dev); mutex_unlock(&dev_pm_qos_mtx); + + mutex_unlock(&dev_pm_qos_sysfs_mtx); pm_runtime_put(dev); } EXPORT_SYMBOL_GPL(dev_pm_qos_hide_flags); diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index e6732cf..79f4fca 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -398,7 +398,7 @@ static int regcache_rbtree_sync(struct regmap *map, unsigned int min, base = 0; if (max < rbnode->base_reg + rbnode->blklen) - end = rbnode->base_reg + rbnode->blklen - max; + end = max - rbnode->base_reg + 1; else end = rbnode->blklen; diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 3d23675..58cfb32 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -710,12 +710,12 @@ skip_format_initialization: } } + regmap_debugfs_init(map, config->name); + ret = regcache_init(map, config); if (ret != 0) goto err_range; - regmap_debugfs_init(map, config->name); - /* Add a devres resource for dev_get_regmap() */ m = devres_alloc(dev_get_regmap_release, sizeof(*m), GFP_KERNEL); if (!m) { @@ -1036,6 +1036,8 @@ static int _regmap_raw_write(struct regmap *map, unsigned int reg, kfree(async->work_buf); kfree(async); } + + return ret; } trace_regmap_hw_write_start(map->dev, reg, |