android/android_kernel_samsung_sm8650
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: stmmac: Fix for LPM issue with boot kpi configuration

Browse Source 
With Early Ethernet enabled Link is not up after S2R.
reset the PHY at S2R to fix the Link issue.

Change-Id: I8549d4af7c4dcdc84abcf8deb136028925db5dae
Signed-off-by: Uppalamarthi Sowmya <quic_usowmya@quicinc.com>
This commit is contained in:
Uppalamarthi Sowmya 2024-07-04 12:09:10 +05:30 committed by Suraj Jaiswal
parent b0e9354523
commit 4d90e82bad
3 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
View File

@ -2468,6 +2468,7 @@ static int qcom_ethqos_resume(struct device *dev)
struct net_device *ndev = NULL;
struct qcom_ethqos *ethqos;
int ret;
struct stmmac_priv *priv;
ETHQOSDBG("Resume Enter\n");
if (of_device_is_compatible(dev->of_node, "qcom,emac-smmu-embedded"))
@ -2490,11 +2491,15 @@ static int qcom_ethqos_resume(struct device *dev)
ETHQOSERR(" Resume not possible\n");
return -EINVAL;
}
priv = netdev_priv(ndev);
qcom_ethqos_phy_resume_clks(ethqos);
if (ethqos->gdsc_off_on_suspend)
ethqos_set_func_clk_en(ethqos);
if (priv->plat->early_eth)
priv->plat->need_reset = 1;
ret = stmmac_resume(dev);
ETHQOSDBG("<--Resume Exit\n");

2
drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
View File

@ -352,7 +352,7 @@ int stmmac_mdio_reset(struct mii_bus *bus)
unsigned int mii_address = priv->hw->mii.addr;
bool active_high = false;
if (priv->plat->early_eth)
if (priv->plat->early_eth && !priv->plat->need_reset)
return 0;
#ifdef CONFIG_OF

1
include/linux/stmmac.h
View File

@ -304,5 +304,6 @@ struct plat_stmmacenet_data {
void (*phy_irq_enable)(void *priv);
void (*phy_irq_disable)(void *priv);
bool early_eth;
bool need_reset;
};
#endif