On 5/28/19 9:28 PM, Heiner Kallweit wrote: > On 28.05.2019 21:23, Marek Vasut wrote: >> Add support for handling the TJA11xx PHY IRQ signal. >> >> Signed-off-by: Marek Vasut <marex@xxxxxxx> >> Cc: Andrew Lunn <andrew@xxxxxxx> >> Cc: Florian Fainelli <f.fainelli@xxxxxxxxx> >> Cc: Guenter Roeck <linux@xxxxxxxxxxxx> >> Cc: Heiner Kallweit <hkallweit1@xxxxxxxxx> >> Cc: Jean Delvare <jdelvare@xxxxxxxx> >> Cc: linux-hwmon@xxxxxxxxxxxxxxx >> --- >> V2: - Define each bit of the MII_INTEN register and a mask >> - Drop IRQ acking from tja11xx_config_intr() >> --- >> drivers/net/phy/nxp-tja11xx.c | 48 +++++++++++++++++++++++++++++++++++ >> 1 file changed, 48 insertions(+) >> >> diff --git a/drivers/net/phy/nxp-tja11xx.c b/drivers/net/phy/nxp-tja11xx.c >> index b705d0bd798b..b41af609607d 100644 >> --- a/drivers/net/phy/nxp-tja11xx.c >> +++ b/drivers/net/phy/nxp-tja11xx.c >> @@ -40,6 +40,29 @@ >> #define MII_INTSRC_TEMP_ERR BIT(1) >> #define MII_INTSRC_UV_ERR BIT(3) >> >> +#define MII_INTEN 22 >> +#define MII_INTEN_PWON_EN BIT(15) >> +#define MII_INTEN_WAKEUP_EN BIT(14) >> +#define MII_INTEN_PHY_INIT_FAIL_EN BIT(11) >> +#define MII_INTEN_LINK_STATUS_FAIL_EN BIT(10) >> +#define MII_INTEN_LINK_STATUS_UP_EN BIT(9) >> +#define MII_INTEN_SYM_ERR_EN BIT(8) >> +#define MII_INTEN_TRAINING_FAILED_EN BIT(7) >> +#define MII_INTEN_SQI_WARNING_EN BIT(6) >> +#define MII_INTEN_CONTROL_ERR_EN BIT(5) >> +#define MII_INTEN_UV_ERR_EN BIT(3) >> +#define MII_INTEN_UV_RECOVERY_EN BIT(2) >> +#define MII_INTEN_TEMP_ERR_EN BIT(1) >> +#define MII_INTEN_SLEEP_ABORT_EN BIT(0) >> +#define MII_INTEN_MASK \ >> + (MII_INTEN_PWON_EN | MII_INTEN_WAKEUP_EN | \ >> + MII_INTEN_PHY_INIT_FAIL_EN | MII_INTEN_LINK_STATUS_FAIL_EN | \ >> + MII_INTEN_LINK_STATUS_UP_EN | MII_INTEN_SYM_ERR_EN | \ >> + MII_INTEN_TRAINING_FAILED_EN | MII_INTEN_SQI_WARNING_EN | \ >> + MII_INTEN_CONTROL_ERR_EN | MII_INTEN_UV_ERR_EN | \ >> + MII_INTEN_UV_RECOVERY_EN | MII_INTEN_TEMP_ERR_EN | \ >> + MII_INTEN_SLEEP_ABORT_EN) > > Why do you enable all these interrupt sources? As I said, phylib needs > link change info only. Because I need them to reliably detect that the link state changed. >> + >> #define MII_COMMSTAT 23 >> #define MII_COMMSTAT_LINK_UP BIT(15) >> >> @@ -239,6 +262,25 @@ static int tja11xx_read_status(struct phy_device *phydev) >> return 0; >> } >> >> +static int tja11xx_config_intr(struct phy_device *phydev) >> +{ >> + int ret; >> + >> + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) >> + ret = phy_write(phydev, MII_INTEN, MII_INTEN_MASK); >> + else >> + ret = phy_write(phydev, MII_INTEN, 0); >> + >> + return ret < 0 ? ret : 0; > > phy_write returns only 0 or negative errno. You don't need > variable ret. OK -- Best regards, Marek Vasut