diff options
| author | Christophe Roullier <christophe.roullier@st.com> | 2019-03-05 09:29:23 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-03-08 11:48:19 -0800 |
| commit | 634565f815561317f32191df57e11c05aa0b8297 (patch) | |
| tree | 106404272a9a5d66b12ace43a8694c9e982178d5 | |
| parent | f1a167050d0edc089d8155274611883c9db62743 (diff) | |
| download | linux-634565f815561317f32191df57e11c05aa0b8297.tar.bz2 | |
net: ethernet: stmmac: manage Ethernet WoL for stm32mp157c.
Add glue codes to support magic packet on stm32mp157c
Signed-off-by: Christophe Roullier <christophe.roullier@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c index 7e2e79dedebf..d1cf145b8986 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c @@ -42,6 +42,7 @@ struct stm32_dwmac { struct clk *clk_ethstp; struct clk *syscfg_clk; bool int_phyclk; /* Clock from RCC to drive PHY */ + int irq_pwr_wakeup; u32 mode_reg; /* MAC glue-logic mode register */ struct regmap *regmap; u32 speed; @@ -232,7 +233,9 @@ static int stm32_dwmac_parse_data(struct stm32_dwmac *dwmac, static int stm32mp1_parse_data(struct stm32_dwmac *dwmac, struct device *dev) { + struct platform_device *pdev = to_platform_device(dev); struct device_node *np = dev->of_node; + int err = 0; dwmac->int_phyclk = of_property_read_bool(np, "st,int-phyclk"); @@ -260,7 +263,26 @@ static int stm32mp1_parse_data(struct stm32_dwmac *dwmac, return PTR_ERR(dwmac->syscfg_clk); } - return 0; + /* Get IRQ information early to have an ability to ask for deferred + * probe if needed before we went too far with resource allocation. + */ + dwmac->irq_pwr_wakeup = platform_get_irq_byname(pdev, + "stm32_pwr_wakeup"); + if (!dwmac->int_phyclk && dwmac->irq_pwr_wakeup >= 0) { + err = device_init_wakeup(&pdev->dev, true); + if (err) { + dev_err(&pdev->dev, "Failed to init wake up irq\n"); + return err; + } + err = dev_pm_set_dedicated_wake_irq(&pdev->dev, + dwmac->irq_pwr_wakeup); + if (err) { + dev_err(&pdev->dev, "Failed to set wake up irq\n"); + device_init_wakeup(&pdev->dev, false); + } + device_set_wakeup_enable(&pdev->dev, false); + } + return err; } static int stm32_dwmac_probe(struct platform_device *pdev) @@ -326,9 +348,15 @@ static int stm32_dwmac_remove(struct platform_device *pdev) struct net_device *ndev = platform_get_drvdata(pdev); struct stmmac_priv *priv = netdev_priv(ndev); int ret = stmmac_dvr_remove(&pdev->dev); + struct stm32_dwmac *dwmac = priv->plat->bsp_priv; stm32_dwmac_clk_disable(priv->plat->bsp_priv); + if (dwmac->irq_pwr_wakeup >= 0) { + dev_pm_clear_wake_irq(&pdev->dev); + device_init_wakeup(&pdev->dev, false); + } + return ret; } |