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author | Randy Li <ayaka@soulik.info> | 2016-09-10 02:59:37 +0800 |
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committer | Kishon Vijay Abraham I <kishon@ti.com> | 2016-09-10 17:31:39 +0530 |
commit | cac18ecb6f44b11bc303d7afbae3887b27938fa4 (patch) | |
tree | f630b7ff27947281512d4112834fca0a7bf6b8d3 /drivers/phy/phy-core.c | |
parent | 91d6e3b6bcf2625a07fec22a9af37ddbfd91a0df (diff) | |
download | lwn-cac18ecb6f44b11bc303d7afbae3887b27938fa4.tar.gz lwn-cac18ecb6f44b11bc303d7afbae3887b27938fa4.zip |
phy: Add reset callback
The only use for this is for solving a hardware design problem in
usb of Rockchip RK3288.
Signed-off-by: Randy Li <ayaka@soulik.info>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy/phy-core.c')
-rw-r--r-- | drivers/phy/phy-core.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index 8eca906b6e70..a268f4d6f3e9 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -357,6 +357,21 @@ int phy_set_mode(struct phy *phy, enum phy_mode mode) } EXPORT_SYMBOL_GPL(phy_set_mode); +int phy_reset(struct phy *phy) +{ + int ret; + + if (!phy || !phy->ops->reset) + return 0; + + mutex_lock(&phy->mutex); + ret = phy->ops->reset(phy); + mutex_unlock(&phy->mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(phy_reset); + /** * _of_phy_get() - lookup and obtain a reference to a phy by phandle * @np: device_node for which to get the phy |