From: Shenwei Wang <shenwei.wang@xxxxxxx>
[ Upstream commit 96de900ae78e7dbedc937fd91bafe2934579c65a ]
The recent commit
'commit 744d23c71af3 ("net: phy: Warn about incorrect
mdio_bus_phy_resume() state")'
requires the MAC driver explicitly tell the phy driver who is
managing the PM, otherwise you will see warning during resume
stage.
Add a boolean property in the phylink_config structure so that
the MAC driver can use it to tell the PHY driver if it wants to
manage the PM.
Fixes: 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state")
Signed-off-by: Shenwei Wang <shenwei.wang@xxxxxxx>
Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Reviewed-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/phy/phylink.c | 3 +++
include/linux/phylink.h | 2 ++
2 files changed, 5 insertions(+)
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index fef1416dcee4..7afcf6310d59 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1050,6 +1050,9 @@ static int phylink_bringup_phy(struct phylink *pl, struct phy_device *phy,
if (phy_interrupt_is_valid(phy))
phy_request_interrupt(phy);
+ if (pl->config->mac_managed_pm)
+ phy->mac_managed_pm = true;
+
return 0;
}
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
index 237291196ce2..b306159c1fad 100644
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -64,6 +64,7 @@ enum phylink_op_type {
* @pcs_poll: MAC PCS cannot provide link change interrupt
* @poll_fixed_state: if true, starts link_poll,
* if MAC link is at %MLO_AN_FIXED mode.
+ * @mac_managed_pm: if true, indicate the MAC driver is responsible for PHY PM.
* @ovr_an_inband: if true, override PCS to MLO_AN_INBAND
* @get_fixed_state: callback to execute to determine the fixed link state,
* if MAC link is at %MLO_AN_FIXED mode.
@@ -73,6 +74,7 @@ struct phylink_config {
enum phylink_op_type type;
bool pcs_poll;
bool poll_fixed_state;
+ bool mac_managed_pm;
bool ovr_an_inband;
void (*get_fixed_state)(struct phylink_config *config,
struct phylink_link_state *state);
--
2.35.1
