From a1deab17b2e9017e8a12e8b9e32ddda290f2b269 Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Wed, 3 Apr 2019 23:14:33 +0200
Subject: [PATCH 1/2] net: phy: allow a PHY driver to define neither features
nor get_features
Meanwhile we have generic functions for reading the abilities of
Clause 22 / 45 PHY's. This allows to use them as fallback in case
callback get_features isn't set. Benefit is the reduction of
boilerplate code in PHY drivers.
v2:
- adjust the comment in phy_driver_register to match the code
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/phy_device.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 72fc714c9427c..f7a6d0ffb1acb 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -2143,12 +2143,17 @@ static int phy_probe(struct device *dev)
*/
if (phydrv->features) {
linkmode_copy(phydev->supported, phydrv->features);
- } else {
+ } else if (phydrv->get_features) {
err = phydrv->get_features(phydev);
- if (err)
- goto out;
+ } else if (phydev->is_c45) {
+ err = genphy_c45_pma_read_abilities(phydev);
+ } else {
+ err = genphy_read_abilities(phydev);
}
+ if (err)
+ goto out;
+
of_set_phy_supported(phydev);
linkmode_copy(phydev->advertising, phydev->supported);
@@ -2216,11 +2221,11 @@ int phy_driver_register(struct phy_driver *new_driver, struct module *owner)
int retval;
/* Either the features are hard coded, or dynamically
- * determine. It cannot be both or neither
+ * determined. It cannot be both.
*/
- if (WARN_ON((!new_driver->features && !new_driver->get_features) ||
- (new_driver->features && new_driver->get_features))) {
- pr_err("%s: Driver features are missing\n", new_driver->name);
+ if (WARN_ON(new_driver->features && new_driver->get_features)) {
+ pr_err("%s: features and get_features must not both be set\n",
+ new_driver->name);
return -EINVAL;
}
From 32a069d807f3cc9d0e09e86d87e654814ea44656 Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Wed, 3 Apr 2019 23:15:17 +0200
Subject: [PATCH 2/2] net: phy: realtek: remove setting callback get_features
and use phylib fallback
Now that phylib uses genphy_read_abilities() as fallback, we don't have
to set callback get_features any longer.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/realtek.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index 5ecbd41ed4602..d6a10f323117b 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -199,11 +199,9 @@ static struct phy_driver realtek_drvs[] = {
{
PHY_ID_MATCH_EXACT(0x00008201),
.name = "RTL8201CP Ethernet",
- .get_features = genphy_read_abilities,
}, {
PHY_ID_MATCH_EXACT(0x001cc816),
.name = "RTL8201F Fast Ethernet",
- .get_features = genphy_read_abilities,
.ack_interrupt = &rtl8201_ack_interrupt,
.config_intr = &rtl8201_config_intr,
.suspend = genphy_suspend,
@@ -213,14 +211,12 @@ static struct phy_driver realtek_drvs[] = {
}, {
PHY_ID_MATCH_EXACT(0x001cc910),
.name = "RTL8211 Gigabit Ethernet",
- .get_features = genphy_read_abilities,
.config_aneg = rtl8211_config_aneg,
.read_mmd = &genphy_read_mmd_unsupported,
.write_mmd = &genphy_write_mmd_unsupported,
}, {
PHY_ID_MATCH_EXACT(0x001cc912),
.name = "RTL8211B Gigabit Ethernet",
- .get_features = genphy_read_abilities,
.ack_interrupt = &rtl821x_ack_interrupt,
.config_intr = &rtl8211b_config_intr,
.read_mmd = &genphy_read_mmd_unsupported,
@@ -230,14 +226,12 @@ static struct phy_driver realtek_drvs[] = {
}, {
PHY_ID_MATCH_EXACT(0x001cc913),
.name = "RTL8211C Gigabit Ethernet",
- .get_features = genphy_read_abilities,
.config_init = rtl8211c_config_init,
.read_mmd = &genphy_read_mmd_unsupported,
.write_mmd = &genphy_write_mmd_unsupported,
}, {
PHY_ID_MATCH_EXACT(0x001cc914),
.name = "RTL8211DN Gigabit Ethernet",
- .get_features = genphy_read_abilities,
.ack_interrupt = rtl821x_ack_interrupt,
.config_intr = rtl8211e_config_intr,
.suspend = genphy_suspend,
@@ -245,7 +239,6 @@ static struct phy_driver realtek_drvs[] = {
}, {
PHY_ID_MATCH_EXACT(0x001cc915),
.name = "RTL8211E Gigabit Ethernet",
- .get_features = genphy_read_abilities,
.ack_interrupt = &rtl821x_ack_interrupt,
.config_intr = &rtl8211e_config_intr,
.suspend = genphy_suspend,
@@ -253,7 +246,6 @@ static struct phy_driver realtek_drvs[] = {
}, {
PHY_ID_MATCH_EXACT(0x001cc916),
.name = "RTL8211F Gigabit Ethernet",
- .get_features = genphy_read_abilities,
.config_init = &rtl8211f_config_init,
.ack_interrupt = &rtl8211f_ack_interrupt,
.config_intr = &rtl8211f_config_intr,
@@ -264,7 +256,6 @@ static struct phy_driver realtek_drvs[] = {
}, {
PHY_ID_MATCH_EXACT(0x001cc800),
.name = "Generic Realtek PHY",
- .get_features = genphy_read_abilities,
.suspend = genphy_suspend,
.resume = genphy_resume,
.read_page = rtl821x_read_page,
@@ -272,7 +263,6 @@ static struct phy_driver realtek_drvs[] = {
}, {
PHY_ID_MATCH_EXACT(0x001cc961),
.name = "RTL8366RB Gigabit Ethernet",
- .get_features = genphy_read_abilities,
.config_init = &rtl8366rb_config_init,
/* These interrupts are handled by the irq controller
* embedded inside the RTL8366RB, they get unmasked when the