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Date: Wed, 22 Sep 2010 12:38:26 +0200
From: Giuseppe CAVALLARO <peppe.cavallaro@...com>
To: netdev@...r.kernel.org
Cc: Giuseppe Cavallaro <peppe.cavallaro@...com>
Subject: [net-next] stmmac: review the wake-up support
If the PM support is available this is passed
through the platform instead to be hard-coded
in the core files.
WoL on Magic Frame can be enabled by using
the ethtool support.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@...com>
---
drivers/net/stmmac/common.h | 1 -
drivers/net/stmmac/dwmac1000_core.c | 1 -
drivers/net/stmmac/dwmac100_core.c | 1 -
drivers/net/stmmac/stmmac_ethtool.c | 14 +++++++++-----
drivers/net/stmmac/stmmac_main.c | 26 ++++++++++++++------------
include/linux/stmmac.h | 1 +
6 files changed, 24 insertions(+), 20 deletions(-)
diff --git a/drivers/net/stmmac/common.h b/drivers/net/stmmac/common.h
index 673ef86..dec7ce4 100644
--- a/drivers/net/stmmac/common.h
+++ b/drivers/net/stmmac/common.h
@@ -238,7 +238,6 @@ struct mac_device_info {
struct stmmac_ops *mac;
struct stmmac_desc_ops *desc;
struct stmmac_dma_ops *dma;
- unsigned int pmt; /* support Power-Down */
struct mii_regs mii; /* MII register Addresses */
struct mac_link link;
};
diff --git a/drivers/net/stmmac/dwmac1000_core.c b/drivers/net/stmmac/dwmac1000_core.c
index c18c859..65667b6 100644
--- a/drivers/net/stmmac/dwmac1000_core.c
+++ b/drivers/net/stmmac/dwmac1000_core.c
@@ -239,7 +239,6 @@ struct mac_device_info *dwmac1000_setup(void __iomem *ioaddr)
mac->mac = &dwmac1000_ops;
mac->dma = &dwmac1000_dma_ops;
- mac->pmt = PMT_SUPPORTED;
mac->link.port = GMAC_CONTROL_PS;
mac->link.duplex = GMAC_CONTROL_DM;
mac->link.speed = GMAC_CONTROL_FES;
diff --git a/drivers/net/stmmac/dwmac100_core.c b/drivers/net/stmmac/dwmac100_core.c
index 58a914b..94eeccf 100644
--- a/drivers/net/stmmac/dwmac100_core.c
+++ b/drivers/net/stmmac/dwmac100_core.c
@@ -193,7 +193,6 @@ struct mac_device_info *dwmac100_setup(void __iomem *ioaddr)
mac->mac = &dwmac100_ops;
mac->dma = &dwmac100_dma_ops;
- mac->pmt = PMT_NOT_SUPPORTED;
mac->link.port = MAC_CONTROL_PS;
mac->link.duplex = MAC_CONTROL_F;
mac->link.speed = 0;
diff --git a/drivers/net/stmmac/stmmac_ethtool.c b/drivers/net/stmmac/stmmac_ethtool.c
index b32c16a..25a7e38 100644
--- a/drivers/net/stmmac/stmmac_ethtool.c
+++ b/drivers/net/stmmac/stmmac_ethtool.c
@@ -322,7 +322,7 @@ static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
struct stmmac_priv *priv = netdev_priv(dev);
spin_lock_irq(&priv->lock);
- if (priv->wolenabled == PMT_SUPPORTED) {
+ if (device_can_wakeup(priv->device)) {
wol->supported = WAKE_MAGIC;
wol->wolopts = priv->wolopts;
}
@@ -334,16 +334,20 @@ static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
struct stmmac_priv *priv = netdev_priv(dev);
u32 support = WAKE_MAGIC;
- if (priv->wolenabled == PMT_NOT_SUPPORTED)
+ if (!device_can_wakeup(priv->device))
return -EINVAL;
if (wol->wolopts & ~support)
return -EINVAL;
- if (wol->wolopts == 0)
- device_set_wakeup_enable(priv->device, 0);
- else
+ if (wol->wolopts) {
+ pr_info("stmmac: wakeup enable\n");
device_set_wakeup_enable(priv->device, 1);
+ enable_irq_wake(dev->irq);
+ } else {
+ device_set_wakeup_enable(priv->device, 0);
+ disable_irq_wake(dev->irq);
+ }
spin_lock_irq(&priv->lock);
priv->wolopts = wol->wolopts;
diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
index a908f72..823b9e6 100644
--- a/drivers/net/stmmac/stmmac_main.c
+++ b/drivers/net/stmmac/stmmac_main.c
@@ -1568,9 +1568,8 @@ static int stmmac_mac_device_setup(struct net_device *dev)
priv->hw = device;
- priv->wolenabled = priv->hw->pmt; /* PMT supported */
- if (priv->wolenabled == PMT_SUPPORTED)
- priv->wolopts = WAKE_MAGIC; /* Magic Frame */
+ if (device_can_wakeup(priv->device))
+ priv->wolopts = WAKE_MAGIC; /* Magic Frame as default */
return 0;
}
@@ -1709,6 +1708,12 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
priv->enh_desc = plat_dat->enh_desc;
priv->ioaddr = addr;
+ /* PMT module is not integrated in all the MAC devices. */
+ if (plat_dat->pmt) {
+ pr_info("\tPMT module supported\n");
+ device_set_wakeup_capable(&pdev->dev, 1);
+ }
+
platform_set_drvdata(pdev, ndev);
/* Set the I/O base addr */
@@ -1836,13 +1841,11 @@ static int stmmac_suspend(struct platform_device *pdev, pm_message_t state)
stmmac_mac_disable_tx(priv->ioaddr);
- if (device_may_wakeup(&(pdev->dev))) {
- /* Enable Power down mode by programming the PMT regs */
- if (priv->wolenabled == PMT_SUPPORTED)
- priv->hw->mac->pmt(priv->ioaddr, priv->wolopts);
- } else {
+ /* Enable Power down mode by programming the PMT regs */
+ if (device_can_wakeup(priv->device))
+ priv->hw->mac->pmt(priv->ioaddr, priv->wolopts);
+ else
stmmac_mac_disable_rx(priv->ioaddr);
- }
} else {
priv->shutdown = 1;
/* Although this can appear slightly redundant it actually
@@ -1877,9 +1880,8 @@ static int stmmac_resume(struct platform_device *pdev)
* is received. Anyway, it's better to manually clear
* this bit because it can generate problems while resuming
* from another devices (e.g. serial console). */
- if (device_may_wakeup(&(pdev->dev)))
- if (priv->wolenabled == PMT_SUPPORTED)
- priv->hw->mac->pmt(priv->ioaddr, 0);
+ if (device_can_wakeup(priv->device))
+ priv->hw->mac->pmt(priv->ioaddr, 0);
netif_device_attach(dev);
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 1d8baf7..d66c617 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -37,6 +37,7 @@ struct plat_stmmacenet_data {
int enh_desc;
int tx_coe;
int bugged_jumbo;
+ int pmt;
void (*fix_mac_speed)(void *priv, unsigned int speed);
void (*bus_setup)(void __iomem *ioaddr);
#ifdef CONFIG_STM_DRIVERS
--
1.5.5.6
--
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