stmmac: intel: set PCI_D3hot in suspend

wvoon · davem330 · commit 1dd53a61488d · 2021-06-29T11:34:48.000-07:00
During suspend, set the Intel mgbe to D3hot state
to save power consumption.

Signed-off-by: Voon Weifeng &lt;weifeng.voon@intel.com&gt;
Signed-off-by: Ling Pei Lee &lt;pei.lee.ling@intel.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -1118,6 +1118,7 @@ static int __maybe_unused intel_eth_pci_suspend(struct device *dev)
 		return ret;
 
 	pci_wake_from_d3(pdev, true);
+	pci_set_power_state(pdev, PCI_D3hot);
 	return 0;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -1118,6 +1118,7 @@ static int __maybe_unused intel_eth_pci_suspend(struct device *dev)`
`1118`	`1118`	`return ret;`
`1119`	`1119`
`1120`	`1120`	`pci_wake_from_d3(pdev, true);`
	`1121`	`+ pci_set_power_state(pdev, PCI_D3hot);`
`1121`	`1122`	`return 0;`
`1122`	`1123`	`}`
`1123`	`1124`