From a1deab17b2e9017e8a12e8b9e32ddda290f2b269 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit 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 Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- 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 72fc714c9427..f7a6d0ffb1ac 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 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 Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- 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 5ecbd41ed460..d6a10f323117 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