From d7943c31d57c11e1a517aa3ce2006fca44866870 Mon Sep 17 00:00:00 2001
From: Jianhui Zhao <zhaojh329@gmail.com>
Date: Sun, 24 Sep 2023 22:15:00 +0800
Subject: [PATCH] net: phy: realtek: add interrupt support for RTL8221B
This commit introduces interrupt support for RTL8221B.
Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
---
drivers/net/phy/realtek/realtek_main.c | 47 +++++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)
--- a/drivers/net/phy/realtek/realtek_main.c
+++ b/drivers/net/phy/realtek/realtek_main.c
@@ -1387,6 +1387,51 @@ static irqreturn_t rtl9000a_handle_inter
return IRQ_HANDLED;
}
+static int rtl8221b_ack_interrupt(struct phy_device *phydev)
+{
+ int err;
+
+ err = phy_read_mmd(phydev, MDIO_MMD_VEND2, 0xa4d4);
+
+ return (err < 0) ? err : 0;
+}
+
+static int rtl8221b_config_intr(struct phy_device *phydev)
+{
+ int err;
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+ err = rtl8221b_ack_interrupt(phydev);
+ if (err)
+ return err;
+
+ err = phy_write_mmd(phydev, MDIO_MMD_VEND2, 0xa4d2, 0x7ff);
+ } else {
+ err = phy_write_mmd(phydev, MDIO_MMD_VEND2, 0xa4d2, 0x0);
+ if (err)
+ return err;
+
+ err = rtl8221b_ack_interrupt(phydev);
+ }
+
+ return err;
+}
+
+static irqreturn_t rtl8221b_handle_interrupt(struct phy_device *phydev)
+{
+ int err;
+
+ err = rtl8221b_ack_interrupt(phydev);
+ if (err) {
+ phy_error(phydev);
+ return IRQ_NONE;
+ }
+
+ phy_trigger_machine(phydev);
+
+ return IRQ_HANDLED;
+}
+
static struct phy_driver realtek_drvs[] = {
{
PHY_ID_MATCH_EXACT(0x00008201),
@@ -1549,6 +1594,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vb_cg_c22_match_phy_device,
.name = "RTL8221B-VB-CG 2.5Gbps PHY (C22)",
+ .config_intr = rtl8221b_config_intr,
+ .handle_interrupt = rtl8221b_handle_interrupt,
.soft_reset = genphy_soft_reset,
.probe = rtl822x_aldps_probe,
.get_features = rtl822x_get_features,
@@ -1563,6 +1610,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vb_cg_c45_match_phy_device,
.name = "RTL8221B-VB-CG 2.5Gbps PHY (C45)",
+ .config_intr = rtl8221b_config_intr,
+ .handle_interrupt = rtl8221b_handle_interrupt,
.soft_reset = genphy_soft_reset,
.probe = rtl822x_aldps_probe,
.config_init = rtl822xb_config_init,
@@ -1575,6 +1624,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vn_cg_c22_match_phy_device,
.name = "RTL8221B-VM-CG 2.5Gbps PHY (C22)",
+ .config_intr = rtl8221b_config_intr,
+ .handle_interrupt = rtl8221b_handle_interrupt,
.soft_reset = genphy_soft_reset,
.probe = rtl822x_aldps_probe,
.get_features = rtl822x_get_features,
@@ -1589,6 +1640,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vn_cg_c45_match_phy_device,
.name = "RTL8221B-VN-CG 2.5Gbps PHY (C45)",
+ .config_intr = rtl8221b_config_intr,
+ .handle_interrupt = rtl8221b_handle_interrupt,
.soft_reset = genphy_soft_reset,
.probe = rtl822x_aldps_probe,
.config_init = rtl822xb_config_init,