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| author | Tao Huang <huangtao@rock-chips.com> | 2018-12-19 18:46:58 +0800 |
|---|---|---|
| committer | Tao Huang <huangtao@rock-chips.com> | 2018-12-19 18:46:58 +0800 |
| commit | 04026c23c8d802ed28790c3f2861e779635ca46f (patch) | |
| tree | cd08dbeeff4756bea34b04c743a3694c6dc7f5ad /drivers/of/base.c | |
| parent | 8f3cd5ef835c52e645b83a906b4d9d0fa265a814 (diff) | |
| parent | b6b5ee6576282dc102dfc69463d1147116b2e732 (diff) | |
Merge branch 'linux-linaro-lsk-v4.4-android' of git://git.linaro.org/kernel/linux-linaro-stable.git
* linux-linaro-lsk-v4.4-android: (812 commits)
Linux 4.4.167
mac80211: ignore NullFunc frames in the duplicate detection
mac80211: fix reordering of buffered broadcast packets
mac80211: ignore tx status for PS stations in ieee80211_tx_status_ext
mac80211: Clear beacon_int in ieee80211_do_stop
mac80211_hwsim: Timer should be initialized before device registered
kgdboc: fix KASAN global-out-of-bounds bug in param_set_kgdboc_var()
tty: serial: 8250_mtk: always resume the device in probe.
cifs: Fix separator when building path from dentry
Staging: lustre: remove two build warnings
xhci: Prevent U1/U2 link pm states if exit latency is too long
SUNRPC: Fix leak of krb5p encode pages
virtio/s390: fix race in ccw_io_helper()
virtio/s390: avoid race on vcdev->config
ALSA: pcm: Fix interval evaluation with openmin/max
ALSA: pcm: Call snd_pcm_unlink() conditionally at closing
ALSA: pcm: Fix starvation on down_write_nonblock()
ALSA: hda: Add support for AMD Stoney Ridge
ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in card.c
USB: check usb_get_extra_descriptor for proper size
...
Conflicts:
drivers/gpu/drm/rockchip/rockchip_drm_drv.c
drivers/usb/host/xhci-ring.c
Change-Id: I4304b0875908403a7d88a0d77da52cea04563c11
Diffstat (limited to 'drivers/of/base.c')
| -rw-r--r-- | drivers/of/base.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index 17dc8c9f2d51..c17721b8ba30 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -713,6 +713,31 @@ struct device_node *of_get_next_available_child(const struct device_node *node, EXPORT_SYMBOL(of_get_next_available_child); /** + * of_get_compatible_child - Find compatible child node + * @parent: parent node + * @compatible: compatible string + * + * Lookup child node whose compatible property contains the given compatible + * string. + * + * Returns a node pointer with refcount incremented, use of_node_put() on it + * when done; or NULL if not found. + */ +struct device_node *of_get_compatible_child(const struct device_node *parent, + const char *compatible) +{ + struct device_node *child; + + for_each_child_of_node(parent, child) { + if (of_device_is_compatible(child, compatible)) + break; + } + + return child; +} +EXPORT_SYMBOL(of_get_compatible_child); + +/** * of_get_child_by_name - Find the child node by name for a given parent * @node: parent node * @name: child name to look for. |