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Message-ID: <Z9fhqbfoQGSm1Njx@mev-dev.igk.intel.com>
Date: Mon, 17 Mar 2025 09:47:37 +0100
From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
To: Jim Liu <jim.t90615@...il.com>
Cc: JJLIU0@...oton.com, florian.fainelli@...adcom.com, andrew@...n.ch,
hkallweit1@...il.com, kuba@...nel.org, linux@...linux.org.uk,
edumazet@...gle.com, pabeni@...hat.com, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] net: phy: broadcom: Correct BCM5221 PHY model
detection failure
On Mon, Mar 17, 2025 at 11:50:05AM +0800, Jim Liu wrote:
> Use "BRCM_PHY_MODEL" can be applied to the entire 5221 family of PHYs.
>
> Fixes: 3abbd0699b67 (net: phy: broadcom: add support for BCM5221 phy)
> Signed-off-by: Jim Liu <JJLIU0@...oton.com>
> ---
> drivers/net/phy/broadcom.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
> index 22edb7e4c1a1..3529289e9d13 100644
> --- a/drivers/net/phy/broadcom.c
> +++ b/drivers/net/phy/broadcom.c
> @@ -859,7 +859,7 @@ static int brcm_fet_config_init(struct phy_device *phydev)
> return reg;
>
> /* Unmask events we are interested in and mask interrupts globally. */
> - if (phydev->phy_id == PHY_ID_BCM5221)
> + if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM5221)
> reg = MII_BRCM_FET_IR_ENABLE |
> MII_BRCM_FET_IR_MASK;
> else
> @@ -888,7 +888,7 @@ static int brcm_fet_config_init(struct phy_device *phydev)
> return err;
> }
>
> - if (phydev->phy_id != PHY_ID_BCM5221) {
> + if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM5221) {
> /* Set the LED mode */
> reg = __phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4);
> if (reg < 0) {
> @@ -1009,7 +1009,7 @@ static int brcm_fet_suspend(struct phy_device *phydev)
> return err;
> }
>
> - if (phydev->phy_id == PHY_ID_BCM5221)
> + if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM5221)
> /* Force Low Power Mode with clock enabled */
> reg = BCM5221_SHDW_AM4_EN_CLK_LPM | BCM5221_SHDW_AM4_FORCE_LPM;
> else
> --
> 2.34.1
It will be nice to have wider explanation what it is fixing in commit
message. Is phydev->phy_id different than phydev->driver->phy_id? Looks
like masking isn't crucial as phydev->driver->phy_id is initialized by
PHY_ID_BCM5221 which is already masked.
Anyway, looks fine, thanks.
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
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