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Message-Id: <1430227486-225197-11-git-send-email-heikki.krogerus@linux.intel.com>
Date: Tue, 28 Apr 2015 16:24:45 +0300
From: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To: Felipe Balbi <balbi@...com>
Cc: David Cohen <david.a.cohen@...ux.intel.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Stephen Boyd <sboyd@...eaurora.org>,
Baolu Lu <baolu.lu@...ux.intel.com>,
Paul Bolle <pebolle@...cali.nl>, linux-usb@...r.kernel.org,
linux-kernel@...r.kernel.org,
Kishon Vijay Abraham I <kishon@...com>
Subject: [PATCHv3 10/11] 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@...ux.intel.com>
Acked-by: David Cohen <david.a.cohen@...ux.intel.com>
Cc: Kishon Vijay Abraham I <kishon@...com>
---
drivers/phy/ulpi_phy.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 drivers/phy/ulpi_phy.h
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);
+}
--
2.1.4
--
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