[v1] net: phy: broadcom: Correct BCM5221 PHY model detection failure

[v3,net] net: phy: broadcom: Correct BCM5221 PHY model detection failure

Posted by Jim Liu 8 months, 3 weeks ago

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 <jim.t90615@gmail.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
---
v3:
   modify BRCM_PHY_MODEL define
---
 drivers/net/phy/broadcom.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 22edb7e4c1a1..4327d946d524 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -23,8 +23,7 @@
 #include <linux/irq.h>
 #include <linux/gpio/consumer.h>
 
-#define BRCM_PHY_MODEL(phydev) \
-	((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
+#define BRCM_PHY_MODEL(phydev) ((phydev)->drv->phy_id)
 
 #define BRCM_PHY_REV(phydev) \
 	((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask))
@@ -859,7 +858,7 @@ 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 +887,7 @@ 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 +1008,7 @@ 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

Re: [v3,net] net: phy: broadcom: Correct BCM5221 PHY model detection failure

Posted by Florian Fainelli 8 months, 3 weeks ago

On 3/25/25 02:10, 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 <jim.t90615@gmail.com>
> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
> ---
> v3:
>     modify BRCM_PHY_MODEL define

Humm, I am not super confident in modifying BRCM_PHY_MODEL() since that 
impacts the entire driver, how about just using Russell's suggestion:

if (phydev->drv->phy_id == PHY_ID_BCM5221)

all over the place? That also paves the way for getting rid of 
BRCM_PHY_MODEL() once this patch is in net-next.

Thanks!
-- 
Florian