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authorDeepak Sikri <deepak.sikri@st.com>2011-09-01 21:51:37 +0000
committerDavid S. Miller <davem@davemloft.net>2011-09-15 15:40:01 -0400
commit3172d3afa998ffb8f1971746ca960cbe98d62444 (patch)
treef7f97b57388edf50fa65958b0186b612b60f9ab7 /drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
parentstmmac: remove the mmc code (v3) (diff)
downloadlinux-dev-3172d3afa998ffb8f1971746ca960cbe98d62444.tar.xz
linux-dev-3172d3afa998ffb8f1971746ca960cbe98d62444.zip
stmmac: support wake up irq from external sources (v3)
On some platforms e.g. SPEAr the wake up irq differs from the GMAC interrupt source. With this patch an external wake up irq can be passed through the platform code and named as "eth_wake_irq". In case the wake up interrupt is not passed from the platform so the driver will continue to use the mac irq (ndev->irq) Signed-off-by: Deepak Sikri <deepak.sikri@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 579f2673fd2e..5aea21e587dd 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1515,7 +1515,7 @@ static int stmmac_mac_device_setup(struct net_device *dev)
if (device_can_wakeup(priv->device)) {
priv->wolopts = WAKE_MAGIC; /* Magic Frame as default */
- enable_irq_wake(dev->irq);
+ enable_irq_wake(priv->wol_irq);
}
return 0;
@@ -1588,6 +1588,18 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
pr_info("\tPMT module supported\n");
device_set_wakeup_capable(&pdev->dev, 1);
}
+ /*
+ * On some platforms e.g. SPEAr the wake up irq differs from the mac irq
+ * The external wake up irq can be passed through the platform code
+ * named as "eth_wake_irq"
+ *
+ * In case the wake up interrupt is not passed from the platform
+ * so the driver will continue to use the mac irq (ndev->irq)
+ */
+ priv->wol_irq = platform_get_irq_byname(pdev, "eth_wake_irq");
+ if (priv->wol_irq == -ENXIO)
+ priv->wol_irq = ndev->irq;
+
platform_set_drvdata(pdev, ndev);