From: Meng Li meng.li@windriver.com
stable inclusion form stable-v5.10.82 commit 6289b494b38e352e65bd4b3b75af692d83a7f9b7 bugzilla: 185877 https://gitee.com/openeuler/kernel/issues/I4QU6V
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit 9119570039481d56350af1c636f040fb300b8cf3 upstream.
According to upstream commit 5ec55823438e("net: stmmac: add clocks management for gmac driver"), it improve clocks management for stmmac driver. So, it is necessary to implement the runtime callback in dwmac-socfpga driver because it doesn't use the common stmmac_pltfr_pm_ops instance. Otherwise, clocks are not disabled when system enters suspend status.
Fixes: 5ec55823438e ("net: stmmac: add clocks management for gmac driver") Cc: stable@vger.kernel.org Signed-off-by: Meng Li Meng.Li@windriver.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Chen Jun chenjun102@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- .../ethernet/stmicro/stmmac/dwmac-socfpga.c | 24 +++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c index 70d41783329d..f37b6d57b2fe 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c @@ -485,8 +485,28 @@ static int socfpga_dwmac_resume(struct device *dev) } #endif /* CONFIG_PM_SLEEP */
-static SIMPLE_DEV_PM_OPS(socfpga_dwmac_pm_ops, stmmac_suspend, - socfpga_dwmac_resume); +static int __maybe_unused socfpga_dwmac_runtime_suspend(struct device *dev) +{ + struct net_device *ndev = dev_get_drvdata(dev); + struct stmmac_priv *priv = netdev_priv(ndev); + + stmmac_bus_clks_config(priv, false); + + return 0; +} + +static int __maybe_unused socfpga_dwmac_runtime_resume(struct device *dev) +{ + struct net_device *ndev = dev_get_drvdata(dev); + struct stmmac_priv *priv = netdev_priv(ndev); + + return stmmac_bus_clks_config(priv, true); +} + +static const struct dev_pm_ops socfpga_dwmac_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(stmmac_suspend, socfpga_dwmac_resume) + SET_RUNTIME_PM_OPS(socfpga_dwmac_runtime_suspend, socfpga_dwmac_runtime_resume, NULL) +};
static const struct socfpga_dwmac_ops socfpga_gen5_ops = { .set_phy_mode = socfpga_gen5_set_phy_mode,