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author | Rafael J. Wysocki <rjw@sisk.pl> | 2012-02-01 22:18:43 +0100 |
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committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-02-01 22:18:43 +0100 |
commit | dcaad77a8074b6de58e745546bc543d5538404f2 (patch) | |
tree | 5f988393b64f1a8053f2f5d0be7113e991d40886 /drivers/base/power/domain.c | |
parent | 0496c8ae366724a0a2136cec09a2e277e782c126 (diff) | |
parent | 91cfbd4ee0875f8a826731983378670012ba6e01 (diff) | |
download | op-kernel-dev-dcaad77a8074b6de58e745546bc543d5538404f2.zip op-kernel-dev-dcaad77a8074b6de58e745546bc543d5538404f2.tar.gz |
Merge branch 'v3.4-for-rafael' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into pm-domains
* 'v3.4-for-rafael' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Hook up power domains to generic power domain infrastructure
PM / Domains: Add OF support
Diffstat (limited to 'drivers/base/power/domain.c')
-rw-r--r-- | drivers/base/power/domain.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 12a03af..d2c0323 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -1230,6 +1230,38 @@ int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev, } /** + * __pm_genpd_of_add_device - Add a device to an I/O PM domain. + * @genpd_node: Device tree node pointer representing a PM domain to which the + * the device is added to. + * @dev: Device to be added. + * @td: Set of PM QoS timing parameters to attach to the device. + */ +int __pm_genpd_of_add_device(struct device_node *genpd_node, struct device *dev, + struct gpd_timing_data *td) +{ + struct generic_pm_domain *genpd = NULL, *gpd; + + dev_dbg(dev, "%s()\n", __func__); + + if (IS_ERR_OR_NULL(genpd_node) || IS_ERR_OR_NULL(dev)) + return -EINVAL; + + mutex_lock(&gpd_list_lock); + list_for_each_entry(gpd, &gpd_list, gpd_list_node) { + if (gpd->of_node == genpd_node) { + genpd = gpd; + break; + } + } + mutex_unlock(&gpd_list_lock); + + if (!genpd) + return -EINVAL; + + return __pm_genpd_add_device(genpd, dev, td); +} + +/** * pm_genpd_remove_device - Remove a device from an I/O PM domain. * @genpd: PM domain to remove the device from. * @dev: Device to be removed. |