stmmac_mdio_reset() has been updated to use msleep rather udelay
(as some PHY requires a one second delay there).
It called from stmmac_resume() within the spin_lock_irqsave block
atomic context triggering 'scheduling while atomic'.
The stmmac_priv lock usage is not fully documented, but it seems
to protect the access to the MAC registers / DMA structures rather
than the MDIO bus or the PHY (which have separate locking),
so we can push the spin_lock after the stmmac_mdio_reset call.
Change-Id: I0e8a0f7e798f89678d59eefdfd251f217c00787e
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Huang, Tao <huangtao@rock-chips.com>
(cherry picked from commit
f55d84b07c4e7340473a25dc82b462607578402c)
if (!netif_running(ndev))
return 0;
if (!netif_running(ndev))
return 0;
- spin_lock_irqsave(&priv->lock, flags);
-
/* Power Down bit, into the PM register, is cleared
* automatically as soon as a magic packet or a Wake-up frame
* is received. Anyway, it's better to manually clear
/* Power Down bit, into the PM register, is cleared
* automatically as soon as a magic packet or a Wake-up frame
* is received. Anyway, it's better to manually clear
* from another devices (e.g. serial console).
*/
if (device_may_wakeup(priv->device)) {
* from another devices (e.g. serial console).
*/
if (device_may_wakeup(priv->device)) {
+ spin_lock_irqsave(&priv->lock, flags);
priv->hw->mac->pmt(priv->hw, 0);
priv->hw->mac->pmt(priv->hw, 0);
+ spin_unlock_irqrestore(&priv->lock, flags);
priv->irq_wake = 0;
} else {
pinctrl_pm_select_default_state(priv->device);
priv->irq_wake = 0;
} else {
pinctrl_pm_select_default_state(priv->device);
netif_device_attach(ndev);
netif_device_attach(ndev);
+ spin_lock_irqsave(&priv->lock, flags);
+
priv->cur_rx = 0;
priv->dirty_rx = 0;
priv->dirty_tx = 0;
priv->cur_rx = 0;
priv->dirty_rx = 0;
priv->dirty_tx = 0;