diff options
author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2015-05-13 12:26:52 (GMT) |
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committer | Felipe Balbi <balbi@ti.com> | 2015-05-13 17:06:56 (GMT) |
commit | 723487a6ff50bb88c628a859aeac3fe721f0d1fa (patch) | |
tree | 53280a33f392ad1aed2297957d6871d8d6d11c1c /drivers/phy/ulpi_phy.h | |
parent | 88bc9d194ff69875a4d3c958d969ed2a053c8308 (diff) | |
download | linux-723487a6ff50bb88c628a859aeac3fe721f0d1fa.tar.xz |
phy: helpers for USB ULPI PHY registering
ULPI PHYs need to be bound to their controllers with a
lookup. This adds helpers that the ULPI drivers can use to
do both, the registration of the PHY and the lookup, at the
same time.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: David Cohen <david.a.cohen@linux.intel.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/phy/ulpi_phy.h')
-rw-r--r-- | drivers/phy/ulpi_phy.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/phy/ulpi_phy.h b/drivers/phy/ulpi_phy.h new file mode 100644 index 0000000..ac49fb6 --- /dev/null +++ b/drivers/phy/ulpi_phy.h @@ -0,0 +1,31 @@ +#include <linux/phy/phy.h> + +/** + * Helper that registers PHY for a ULPI device and adds a lookup for binding it + * and it's controller, which is always the parent. + */ +static inline struct phy +*ulpi_phy_create(struct ulpi *ulpi, struct phy_ops *ops) +{ + struct phy *phy; + int ret; + + phy = phy_create(&ulpi->dev, NULL, ops); + if (IS_ERR(phy)) + return phy; + + ret = phy_create_lookup(phy, "usb2-phy", dev_name(ulpi->dev.parent)); + if (ret) { + phy_destroy(phy); + return ERR_PTR(ret); + } + + return phy; +} + +/* Remove a PHY that was created with ulpi_phy_create() and it's lookup. */ +static inline void ulpi_phy_destroy(struct ulpi *ulpi, struct phy *phy) +{ + phy_remove_lookup(phy, "usb2-phy", dev_name(ulpi->dev.parent)); + phy_destroy(phy); +} |