linux-kernel - [PATCHv2 11/12] phy: helpers for USB ULPI PHY registering

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1426682433-133813-12-git-send-email-heikki.krogerus@linux.intel.com>
Date:	Wed, 18 Mar 2015 14:40:32 +0200
From:	Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:	Felipe Balbi <balbi@...com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	David Cohen <david.a.cohen@...ux.intel.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Baolu Lu <baolu.lu@...ux.intel.com>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Kishon Vijay Abraham I <kishon@...com>
Subject: [PATCHv2 11/12] 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>
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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/