[PATCH v2 2/2] net: phy: call phy_disable_interrupts() in phy_init_hw()

Jisheng Zhang
2020-06-23T07:42:56Z

Call phy_disable_interrupts() in phy_init_hw() to "have a defined init
state as we don't know in which state the PHY is if the PHY driver is
loaded. We shouldn't assume that it's the chip power-on defaults, BIOS
or boot loader could have changed this. Or in case of dual-boot
systems the other OS could leave the PHY in whatever state." as pointed
out by Heiner.

Suggested-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
---
drivers/net/phy/phy_device.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 04946de74fa0..f17d397ba689 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1090,10 +1090,13 @@ int phy_init_hw(struct phy_device *phydev)
if (ret < 0)
return ret;

- if (phydev->drv->config_init)
+ if (phydev->drv->config_init) {
ret = phydev->drv->config_init(phydev);
+ if (ret < 0)
+ return ret;
+ }

- return ret;
+ return phy_disable_interrupts(phydev);
}
EXPORT_SYMBOL(phy_init_hw);

--
2.27.0