[PATCH v3 13/23] net: miiphybb: Introduce bb_miiphy_alloc()/bb_miiphy_free() wrappers

[Marek Vasut]

Introduce bb_miiphy_alloc()/bb_miiphy_free() wrappers to allocate and free
struct bb_miiphy_bus. Make struct bb_miiphy_bus wrap struct mii_dev, which
will become useful later in bb_miiphy_bus accessors, which would be able
to access struct bb_miiphy_bus using container_of, even if the PHY stack
only passes in the inner struct mii_dev .

Reviewed-by: Paul Barker <paul.barker.ct at bp.renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
---
Cc: Christian Marangi <ansuelsmth at gmail.com>
Cc: Ilias Apalodimas <ilias.apalodimas at linaro.org>
Cc: Jerome Forissier <jerome.forissier at linaro.org>
Cc: Jim Liu <JJLIU0 at nuvoton.com>
Cc: Joe Hershberger <joe.hershberger at ni.com>
Cc: Mario Six <mario.six at gdsys.cc>
Cc: Michal Simek <michal.simek at amd.com>
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
Cc: Paul Barker <paul.barker.ct at bp.renesas.com>
Cc: Ramon Fried <rfried.dev at gmail.com>
Cc: Simon Glass <sjg at chromium.org>
Cc: Sughosh Ganu <sughosh.ganu at linaro.org>
Cc: Tom Rini <trini at konsulko.com>
Cc: u-boot at lists.denx.de
---
V2: Update commit message, fix duplicate _free()
V3: Add RB from Paul
---
 drivers/net/phy/miiphybb.c | 19 +++++++++++++++++++
 include/miiphy.h           |  4 ++++
 2 files changed, 23 insertions(+)

diff --git a/drivers/net/phy/miiphybb.c b/drivers/net/phy/miiphybb.c
index 75d9537b355..66d98d6cc26 100644
--- a/drivers/net/phy/miiphybb.c
+++ b/drivers/net/phy/miiphybb.c
@@ -14,6 +14,7 @@
 
 #include <ioports.h>
 #include <ppc_asm.tmpl>
+#include <malloc.h>
 #include <miiphy.h>
 #include <asm/global_data.h>
 
@@ -30,6 +31,24 @@ static inline struct bb_miiphy_bus *bb_miiphy_getbus(const char *devname)
 	return NULL;
 }
 
+struct bb_miiphy_bus *bb_miiphy_alloc(void)
+{
+	struct bb_miiphy_bus *bus;
+
+	bus = malloc(sizeof(*bus));
+	if (!bus)
+		return bus;
+
+	mdio_init(&bus->mii);
+
+	return bus;
+}
+
+void bb_miiphy_free(struct bb_miiphy_bus *bus)
+{
+	free(bus);
+}
+
 /*****************************************************************************
  *
  * Utility to send the preamble, address, and register (common to read
diff --git a/include/miiphy.h b/include/miiphy.h
index 40eb14669b8..42300ee5386 100644
--- a/include/miiphy.h
+++ b/include/miiphy.h
@@ -73,11 +73,15 @@ struct bb_miiphy_bus {
 	int (*set_mdc)(struct bb_miiphy_bus *bus, int v);
 	int (*delay)(struct bb_miiphy_bus *bus);
 	void *priv;
+	struct mii_dev mii;
 };
 
 extern struct bb_miiphy_bus bb_miiphy_buses[];
 extern int bb_miiphy_buses_num;
 
+struct bb_miiphy_bus *bb_miiphy_alloc(void);
+void bb_miiphy_free(struct bb_miiphy_bus *bus);
+
 int bb_miiphy_read(struct mii_dev *miidev, int addr, int devad, int reg);
 int bb_miiphy_write(struct mii_dev *miidev, int addr, int devad, int reg,
 		    u16 value);
-- 
2.47.2