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net: bcmgenet: abort suspend on error 

If an error occurs during suspension of the driver the driver should
restore the hardware configuration and return an error to force the
system to resume.

Fixes: 0db55093b5 ("net: bcmgenet: return correct value 'ret' from bcmgenet_power_down")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Doug Berger 2018-11-16 18:00:22 -08:00 committed by David S. Miller
parent a94cbf03eb
commit c5a54bbcec
2 changed files with 9 additions and 0 deletions
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3
drivers/net/ethernet/broadcom/genet/bcmgenet.c
View File

@ -3717,6 +3717,9 @@ static int bcmgenet_suspend(struct device *d)
/* Turn off the clocks */
clk_disable_unprepare(priv->clk);
if (ret)
bcmgenet_resume(d);
return ret;
}
#endif /* CONFIG_PM_SLEEP */

6
drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
View File

@ -186,9 +186,15 @@ void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv,
}
reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL);
if (!(reg & MPD_EN))
return; /* already powered up so skip the rest */
reg &= ~MPD_EN;
bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL);
reg = bcmgenet_hfb_reg_readl(priv, HFB_CTRL);
reg &= ~(RBUF_HFB_EN | RBUF_ACPI_EN);
bcmgenet_hfb_reg_writel(priv, reg, HFB_CTRL);
/* Disable CRC Forward */
reg = bcmgenet_umac_readl(priv, UMAC_CMD);
reg &= ~CMD_CRC_FWD;