From 66e22932eb795f12cc78c7592581673049d85a8c Mon Sep 17 00:00:00 2001 From: Jisheng Zhang Date: Mon, 21 Sep 2020 09:13:54 +0800 Subject: [PATCH] net: phy: realtek: enable ALDPS to save power for RTL8211F Enable ALDPS(Advanced Link Down Power Saving) to save power when link down. Signed-off-by: Jisheng Zhang Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/phy/realtek.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c index 95dbe5e8e1d8..4bf54cded48a 100644 --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -27,11 +27,16 @@ #define RTL821x_EXT_PAGE_SELECT 0x1e #define RTL821x_PAGE_SELECT 0x1f +#define RTL8211F_PHYCR1 0x18 #define RTL8211F_INSR 0x1d #define RTL8211F_TX_DELAY BIT(8) #define RTL8211F_RX_DELAY BIT(3) +#define RTL8211F_ALDPS_PLL_OFF BIT(1) +#define RTL8211F_ALDPS_ENABLE BIT(2) +#define RTL8211F_ALDPS_XTAL_OFF BIT(12) + #define RTL8211E_TX_DELAY BIT(1) #define RTL8211E_RX_DELAY BIT(2) #define RTL8211E_MODE_MII_GMII BIT(3) @@ -178,8 +183,12 @@ static int rtl8211f_config_init(struct phy_device *phydev) { struct device *dev = &phydev->mdio.dev; u16 val_txdly, val_rxdly; + u16 val; int ret; + val = RTL8211F_ALDPS_ENABLE | RTL8211F_ALDPS_PLL_OFF | RTL8211F_ALDPS_XTAL_OFF; + phy_modify_paged_changed(phydev, 0xa43, RTL8211F_PHYCR1, val, val); + switch (phydev->interface) { case PHY_INTERFACE_MODE_RGMII: val_txdly = 0;