From: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
To: Andrew Lunn <andrew@lunn.ch>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH net-next] net: phy: realtek: enable ALDPS to save power for RTL8211F
Date: Fri, 18 Sep 2020 10:47:56 +0800 [thread overview]
Message-ID: <20200918104756.557f9129@xhacker.debian> (raw)
Enable ALDPS function to save power when link down.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
---
drivers/net/phy/realtek.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index 95dbe5e8e1d8..961570186822 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -39,6 +39,10 @@
#define RTL8201F_ISR 0x1e
#define RTL8201F_IER 0x13
+#define RTL8211F_ALDPS_PLL_OFF BIT(1)
+#define RTL8211F_ALDPS_ENABLE BIT(2)
+#define RTL8211F_ALDPS_XTAL_OFF BIT(12)
+
#define RTL8366RB_POWER_SAVE 0x15
#define RTL8366RB_POWER_SAVE_ON BIT(12)
@@ -178,8 +182,12 @@ 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, 0x18, val, val);
+
switch (phydev->interface) {
case PHY_INTERFACE_MODE_RGMII:
val_txdly = 0;
--
2.28.0
next reply other threads:[~2020-09-18 2:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-18 2:47 Jisheng Zhang [this message]
2020-09-18 13:21 ` [PATCH net-next] net: phy: realtek: enable ALDPS to save power for RTL8211F Andrew Lunn
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