diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@st.com> | 2014-01-16 14:52:44 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-17 03:23:43 +0400 |
| commit | 33a23e223749c45ff8099ff9baa235301a3ad07f (patch) | |
| tree | 3585cc7ccea89307a8e5dcab8e02fa3315c05d3d /drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | |
| parent | 623997fb90eab7a135c2c68a332c8450a488baca (diff) | |
| download | linux-33a23e223749c45ff8099ff9baa235301a3ad07f.tar.xz | |
net: stmmac: use suspend functions for hibernation
In hibernation freeze case the driver just releases the resources like
dma buffers, irqs, unregisters the drivers and during restore it does
register, request the resources. This is not really necessary, as part
of power management all the data structures are intact, all the
previously allocated resources can be used after coming out of low
power.
This patch uses the suspend and resume callbacks for freeze and
restore which initializes the hardware correctly without unregistering
or releasing the resources, this should also help in reducing the time
to restore.
Also this patch fixes a bug in stmmac_pltfr_restore and
stmmac_pltfr_freeze where it tries to get hold of platform data via
dev_get_platdata call, which would return NULL in device tree cases and
the next if statement would crash as there is no NULL check.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_main.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 742a83f29aff..c1298a0aef06 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -2912,22 +2912,6 @@ int stmmac_resume(struct net_device *ndev) return 0; } - -int stmmac_freeze(struct net_device *ndev) -{ - if (!ndev || !netif_running(ndev)) - return 0; - - return stmmac_release(ndev); -} - -int stmmac_restore(struct net_device *ndev) -{ - if (!ndev || !netif_running(ndev)) - return 0; - - return stmmac_open(ndev); -} #endif /* CONFIG_PM */ /* Driver can be configured w/ and w/ both PCI and Platf drivers |