This is a note to let you know that I've just added the patch titled
net: phy: mxl-gpy: extend interrupt fix to all impacted variants
to the 6.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-phy-mxl-gpy-extend-interrupt-fix-to-all-impacted.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ddcdd531bee72bf770edd1950bf608069ac9d317
Author: Xu Liang <lxu@xxxxxxxxxxxxx>
Date: Wed May 31 15:48:22 2023 +0800
net: phy: mxl-gpy: extend interrupt fix to all impacted variants
[ Upstream commit 519d6487640835d19461817c75907e6308074a73 ]
The interrupt fix in commit 97a89ed101bb should be applied on all variants
of GPY2xx PHY and GPY115C.
Fixes: 97a89ed101bb ("net: phy: mxl-gpy: disable interrupts on GPY215 by default")
Signed-off-by: Xu Liang <lxu@xxxxxxxxxxxxx>
Reviewed-by: Simon Horman <simon.horman@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230531074822.39136-1-lxu@xxxxxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/phy/mxl-gpy.c b/drivers/net/phy/mxl-gpy.c
index e5972b4ef6e8f..4041ebd7ad9b3 100644
--- a/drivers/net/phy/mxl-gpy.c
+++ b/drivers/net/phy/mxl-gpy.c
@@ -267,13 +267,6 @@ static int gpy_config_init(struct phy_device *phydev)
return ret < 0 ? ret : 0;
}
-static bool gpy_has_broken_mdint(struct phy_device *phydev)
-{
- /* At least these PHYs are known to have broken interrupt handling */
- return phydev->drv->phy_id == PHY_ID_GPY215B ||
- phydev->drv->phy_id == PHY_ID_GPY215C;
-}
-
static int gpy_probe(struct phy_device *phydev)
{
struct device *dev = &phydev->mdio.dev;
@@ -293,8 +286,7 @@ static int gpy_probe(struct phy_device *phydev)
phydev->priv = priv;
mutex_init(&priv->mbox_lock);
- if (gpy_has_broken_mdint(phydev) &&
- !device_property_present(dev, "maxlinear,use-broken-interrupts"))
+ if (!device_property_present(dev, "maxlinear,use-broken-interrupts"))
phydev->dev_flags |= PHY_F_NO_IRQ;
fw_version = phy_read(phydev, PHY_FWV);
@@ -652,11 +644,9 @@ static irqreturn_t gpy_handle_interrupt(struct phy_device *phydev)
* frame. Therefore, polling is the best we can do and won't do any more
* harm.
* It was observed that this bug happens on link state and link speed
- * changes on a GPY215B and GYP215C independent of the firmware version
- * (which doesn't mean that this list is exhaustive).
+ * changes independent of the firmware version.
*/
- if (gpy_has_broken_mdint(phydev) &&
- (reg & (PHY_IMASK_LSTC | PHY_IMASK_LSPC))) {
+ if (reg & (PHY_IMASK_LSTC | PHY_IMASK_LSPC)) {
reg = gpy_mbox_read(phydev, REG_GPIO0_OUT);
if (reg < 0) {
phy_error(phydev);
