[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...@bp.renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+rene...@mailbox.org>
---
Cc: Christian Marangi <ansuels...@gmail.com>
Cc: Ilias Apalodimas <ilias.apalodi...@linaro.org>
Cc: Jerome Forissier <jerome.foriss...@linaro.org>
Cc: Jim Liu <jjl...@nuvoton.com>
Cc: Joe Hershberger <joe.hershber...@ni.com>
Cc: Mario Six <mario....@gdsys.cc>
Cc: Michal Simek <michal.si...@amd.com>
Cc: Nobuhiro Iwamatsu <iwama...@nigauri.org>
Cc: Paul Barker <paul.barker...@bp.renesas.com>
Cc: Ramon Fried <rfried....@gmail.com>
Cc: Simon Glass <s...@chromium.org>
Cc: Sughosh Ganu <sughosh.g...@linaro.org>
Cc: Tom Rini <tr...@konsulko.com>
Cc: u-boot@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