diff options
| author | Sriram <srk@ti.com> | 2010-01-07 03:22:37 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-01-08 04:27:31 +0300 |
| commit | 1ca518b64b4b5865b677f292322e893fa89997d4 (patch) | |
| tree | f59d31d88810e021e66e073adb26d766f6ec204d | |
| parent | 4d907069bc1b745f4abd4745c332d33098e733b8 (diff) | |
| download | linux-1ca518b64b4b5865b677f292322e893fa89997d4.tar.xz | |
TI DaVinci EMAC: Handle emac module clock correctly.
In the driver probe function the emac module clock needs to
be enabled before calling register_netdev(). As soon as the
device is registered the driver get_stats function can be invoked
by the core - the module clock must be switched on to be able to
read from stats registers. Also explicitly call matching clk_disable
for failure conditions in probe function.
Signed-off-by: Sriramakrishnan <srk@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/davinci_emac.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index 34e03104c3c1..33c4fe26178c 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -2711,6 +2711,8 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev) SET_ETHTOOL_OPS(ndev, ðtool_ops); netif_napi_add(ndev, &priv->napi, emac_poll, EMAC_POLL_WEIGHT); + clk_enable(emac_clk); + /* register the network device */ SET_NETDEV_DEV(ndev, &pdev->dev); rc = register_netdev(ndev); @@ -2720,7 +2722,6 @@ static int __devinit davinci_emac_probe(struct platform_device *pdev) goto netdev_reg_err; } - clk_enable(emac_clk); /* MII/Phy intialisation, mdio bus registration */ emac_mii = mdiobus_alloc(); @@ -2760,6 +2761,7 @@ mdiobus_quit: netdev_reg_err: mdio_alloc_err: + clk_disable(emac_clk); no_irq_res: res = platform_get_resource(pdev, IORESOURCE_MEM, 0); release_mem_region(res->start, res->end - res->start + 1); |