[PATCH v2] net: macb: Specify PHY PM management done by MAC

[PATCH v2] net: macb: Specify PHY PM management done by MAC

[Sergiu Moga]

The `macb_resume`/`macb_suspend` methods already call the
`phylink_start`/`phylink_stop` methods during their execution so
explicitly say that the PM of the PHY is done by MAC by using the
`mac_managed_pm` flag of the `struct phylink_config`.

This also fixes the warning message issued during resume:
WARNING: CPU: 0 PID: 237 at drivers/net/phy/phy_device.c:323 mdio_bus_phy_resume+0x144/0x148

Depends-on: 96de900ae78e ("net: phylink: add mac_managed_pm in phylink_config structure")
Fixes: 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state")
Signed-off-by: Sergiu Moga <sergiu.moga@microchip.com>
---


v1 -> v2:
- Add Depends-on: tag


 drivers/net/ethernet/cadence/macb_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 51c9fd6f68a4..4f63f1ba3161 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -806,6 +806,7 @@ static int macb_mii_probe(struct net_device *dev)
 
 	bp->phylink_config.dev = &dev->dev;
 	bp->phylink_config.type = PHYLINK_NETDEV;
+	bp->phylink_config.mac_managed_pm = true;
 
 	if (bp->phy_interface == PHY_INTERFACE_MODE_SGMII) {
 		bp->phylink_config.poll_fixed_state = true;
-- 
2.34.1

Re: [PATCH v2] net: macb: Specify PHY PM management done by MAC

[Florian Fainelli]

On 10/19/2022 5:09 AM, Sergiu Moga wrote:
> The `macb_resume`/`macb_suspend` methods already call the
> `phylink_start`/`phylink_stop` methods during their execution so
> explicitly say that the PM of the PHY is done by MAC by using the
> `mac_managed_pm` flag of the `struct phylink_config`.
> 
> This also fixes the warning message issued during resume:
> WARNING: CPU: 0 PID: 237 at drivers/net/phy/phy_device.c:323 mdio_bus_phy_resume+0x144/0x148
> 
> Depends-on: 96de900ae78e ("net: phylink: add mac_managed_pm in phylink_config structure")
> Fixes: 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state")
> Signed-off-by: Sergiu Moga <sergiu.moga@microchip.com>

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>

Makes me realize we need to do the same in DSA, I will cook a patch soon.
-- 
Florian

Re: [PATCH v2] net: macb: Specify PHY PM management done by MAC

[Claudiu.Beznea]

On 19.10.2022 15:09, Sergiu Moga wrote:
> The `macb_resume`/`macb_suspend` methods already call the
> `phylink_start`/`phylink_stop` methods during their execution so
> explicitly say that the PM of the PHY is done by MAC by using the
> `mac_managed_pm` flag of the `struct phylink_config`.
> 
> This also fixes the warning message issued during resume:
> WARNING: CPU: 0 PID: 237 at drivers/net/phy/phy_device.c:323 mdio_bus_phy_resume+0x144/0x148
> 
> Depends-on: 96de900ae78e ("net: phylink: add mac_managed_pm in phylink_config structure")
> Fixes: 744d23c71af3 ("net: phy: Warn about incorrect mdio_bus_phy_resume() state")
> Signed-off-by: Sergiu Moga <sergiu.moga@microchip.com>

Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>


> ---
> 
> 
> v1 -> v2:
> - Add Depends-on: tag
> 
> 
>  drivers/net/ethernet/cadence/macb_main.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
> index 51c9fd6f68a4..4f63f1ba3161 100644
> --- a/drivers/net/ethernet/cadence/macb_main.c
> +++ b/drivers/net/ethernet/cadence/macb_main.c
> @@ -806,6 +806,7 @@ static int macb_mii_probe(struct net_device *dev)
>  
>  	bp->phylink_config.dev = &dev->dev;
>  	bp->phylink_config.type = PHYLINK_NETDEV;
> +	bp->phylink_config.mac_managed_pm = true;
>  
>  	if (bp->phy_interface == PHY_INTERFACE_MODE_SGMII) {
>  		bp->phylink_config.poll_fixed_state = true;

Re: [PATCH v2] net: macb: Specify PHY PM management done by MAC

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@kernel.org>:

On Wed, 19 Oct 2022 15:09:32 +0300 you wrote:
> The `macb_resume`/`macb_suspend` methods already call the
> `phylink_start`/`phylink_stop` methods during their execution so
> explicitly say that the PM of the PHY is done by MAC by using the
> `mac_managed_pm` flag of the `struct phylink_config`.
> 
> This also fixes the warning message issued during resume:
> WARNING: CPU: 0 PID: 237 at drivers/net/phy/phy_device.c:323 mdio_bus_phy_resume+0x144/0x148
> 
> [...]

Here is the summary with links:
  - [v2] net: macb: Specify PHY PM management done by MAC
    https://git.kernel.org/netdev/net/c/15a9dbec631c

You are awesome, thank you!
-- 
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