net: macb: mark device wake capable when "magic-packet" property present

[ Upstream commit ced4799d06375929e013eea04ba6908207afabbe ]

Change the way the "magic-packet" DT property is handled in the
macb_probe() function, matching DT binding documentation.
Now we mark the device as "wakeup capable" instead of calling the
device_init_wakeup() function that would enable the wakeup source.

For Ethernet WoL, enabling the wakeup_source is done by
using ethtool and associated macb_set_wol() function that
already calls device_set_wakeup_enable() for this purpose.

That would reduce power consumption by cutting more clocks if
"magic-packet" property is set but WoL is not configured by ethtool.

Fixes: 3e2a5e153906 ("net: macb: add wake-on-lan support via magic packet")
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Cc: Harini Katakam <harini.katakam@xilinx.com>
Cc: Sergio Prado <sergio.prado@e-labworks.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index 30e93041bf835c59c85ca57ffb30c2a792022a74..f20718b730e5be1b4d66c6c7d4171338daa5b0f0 100644 (file)
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -3024,7 +3024,7 @@ static int macb_probe(struct platform_device *pdev)
        bp->wol = 0;
        if (of_get_property(np, "magic-packet", NULL))
                bp->wol |= MACB_WOL_HAS_MAGIC_PACKET;
-       device_init_wakeup(&pdev->dev, bp->wol & MACB_WOL_HAS_MAGIC_PACKET);
+       device_set_wakeup_capable(&pdev->dev, bp->wol & MACB_WOL_HAS_MAGIC_PACKET);
 
 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
        if (GEM_BFEXT(DBWDEF, gem_readl(bp, DCFG1)) > GEM_DBW32)