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authorSrinivas Kandagatla <srinivas.kandagatla@st.com>2011-11-15 11:54:15 +0000
committerDavid S. Miller <davem@davemloft.net>2011-11-15 16:56:17 -0500
commit64882709ef07f3eae29c7afc5aa8b84d12733a72 (patch)
treee5504eef06ec6841b429f47e4b4cddf52d9fe5fa /drivers/net/phy/mdio-bitbang.c
parent229a66e3bec97563aa92e25dfe0bc60b0d468619 (diff)
downloadblackbird-op-linux-64882709ef07f3eae29c7afc5aa8b84d12733a72.tar.gz
blackbird-op-linux-64882709ef07f3eae29c7afc5aa8b84d12733a72.zip
mdio-gpio: Add reset functionality to mdio-gpio driver(v2).
This patch adds phy reset functionality to mdio-gpio driver. Now mdio_gpio_platform_data has new member as function pointer which can be filled at the bsp level for a callback from phy infrastructure. Also the mdio-bitbang driver fills-in the reset function of mii_bus structure. Without this patch the bsp level code has to takecare of the reseting PHY's on the bus, which become bit hacky for every bsp and phy-infrastructure is ignored aswell. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/mdio-bitbang.c')
-rw-r--r--drivers/net/phy/mdio-bitbang.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c
index 65391891d8c4..daec9b05d168 100644
--- a/drivers/net/phy/mdio-bitbang.c
+++ b/drivers/net/phy/mdio-bitbang.c
@@ -202,6 +202,14 @@ static int mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
return 0;
}
+static int mdiobb_reset(struct mii_bus *bus)
+{
+ struct mdiobb_ctrl *ctrl = bus->priv;
+ if (ctrl->reset)
+ ctrl->reset(bus);
+ return 0;
+}
+
struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl)
{
struct mii_bus *bus;
@@ -214,6 +222,7 @@ struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl)
bus->read = mdiobb_read;
bus->write = mdiobb_write;
+ bus->reset = mdiobb_reset;
bus->priv = ctrl;
return bus;
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