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net: stmmac: dwmac-sun8i: Add a shutdown callback 

The Ethernet MAC and PHY are usually major consumers of power on boards
which may not be able to fully power off (those with no PMIC). Powering
down the MAC and internal PHY saves power while these boards are "off".

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Samuel Holland 2021-02-16 22:20:06 -06:00 committed by David S. Miller
parent 2743aa2450
commit 96be41d74f
1 changed files with 10 additions and 0 deletions
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10
drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
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@ -1284,6 +1284,15 @@ static int sun8i_dwmac_remove(struct platform_device *pdev)
return 0;
}
static void sun8i_dwmac_shutdown(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
struct stmmac_priv *priv = netdev_priv(ndev);
struct sunxi_priv_data *gmac = priv->plat->bsp_priv;
sun8i_dwmac_exit(pdev, gmac);
}
static const struct of_device_id sun8i_dwmac_match[] = {
{ .compatible = "allwinner,sun8i-h3-emac",
.data = &emac_variant_h3 },
@ -1304,6 +1313,7 @@ MODULE_DEVICE_TABLE(of, sun8i_dwmac_match);
static struct platform_driver sun8i_dwmac_driver = {
.probe = sun8i_dwmac_probe,
.remove = sun8i_dwmac_remove,
.shutdown = sun8i_dwmac_shutdown,
.driver = {
.name = "dwmac-sun8i",
.pm = &stmmac_pltfr_pm_ops,