From 1c16b574c4f77a30a0268acee30be96ae0dc5948 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 27 Nov 2019 11:45:25 +0000 Subject: kernel: add backported phy/phylink/sfp patches Backport the phy/phylink/sfp patches currently queued in netdev or in mainline necessary to support GPON popular modules, specifically to support Huawei and Nokia GPON modules. Signed-off-by: Russell King [jonas.gorski: include kernel version in file names, refresh patches] Signed-off-by: Jonas Gorski --- ...20-net-phy-Stop-with-excessive-soft-reset.patch | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 target/linux/generic/backport-4.19/704-v4.20-net-phy-Stop-with-excessive-soft-reset.patch (limited to 'target/linux/generic/backport-4.19/704-v4.20-net-phy-Stop-with-excessive-soft-reset.patch') diff --git a/target/linux/generic/backport-4.19/704-v4.20-net-phy-Stop-with-excessive-soft-reset.patch b/target/linux/generic/backport-4.19/704-v4.20-net-phy-Stop-with-excessive-soft-reset.patch new file mode 100644 index 0000000000..77ad5b96dd --- /dev/null +++ b/target/linux/generic/backport-4.19/704-v4.20-net-phy-Stop-with-excessive-soft-reset.patch @@ -0,0 +1,40 @@ +From 1541649a9dd79e9b941d399de564475e426a2d0b Mon Sep 17 00:00:00 2001 +From: Florian Fainelli +Date: Tue, 25 Sep 2018 11:28:45 -0700 +Subject: [PATCH 602/660] net: phy: Stop with excessive soft reset + +While consolidating the PHY reset in phy_init_hw() an unconditionaly +BMCR soft-reset I became quite trigger happy with those. This was later +on deactivated for the Generic PHY driver on the premise that a prior +software entity (e.g: bootloader) might have applied workarounds in +commit 0878fff1f42c ("net: phy: Do not perform software reset for +Generic PHY"). + +Since we have a hook to wire-up a soft_reset callback, just use that and +get rid of the call to genphy_soft_reset() entirely. This speeds up +initialization and link establishment for most PHYs out there that do +not require a reset. + +Fixes: 87aa9f9c61ad ("net: phy: consolidate PHY reset in phy_init_hw()") +Tested-by: Wang, Dongsheng +Tested-by: Chris Healy +Tested-by: Andrew Lunn +Tested-by: Clemens Gruber +Signed-off-by: Florian Fainelli +Signed-off-by: David S. Miller +Signed-off-by: Russell King +--- + drivers/net/phy/phy_device.c | 2 -- + 1 file changed, 2 deletions(-) + +--- a/drivers/net/phy/phy_device.c ++++ b/drivers/net/phy/phy_device.c +@@ -885,8 +885,6 @@ int phy_init_hw(struct phy_device *phyde + + if (phydev->drv->soft_reset) + ret = phydev->drv->soft_reset(phydev); +- else +- ret = genphy_soft_reset(phydev); + + if (ret < 0) + return ret; -- cgit v1.2.3