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- Add support for configuring AT803x GPIO reset via platform data.
- This is necessary, because ath79 is not converted to device tree yet.
- Signed-off-by: Felix Fietkau <[email protected]>
- --- a/include/linux/platform_data/phy-at803x.h
- +++ b/include/linux/platform_data/phy-at803x.h
- @@ -6,6 +6,8 @@ struct at803x_platform_data {
- int enable_rgmii_tx_delay:1;
- int enable_rgmii_rx_delay:1;
- int fixup_rgmii_tx_delay:1;
- + int has_reset_gpio:1;
- + int reset_gpio;
- };
-
- #endif /* _PHY_AT803X_PDATA_H */
- --- a/drivers/net/phy/at803x.c
- +++ b/drivers/net/phy/at803x.c
- @@ -263,6 +263,7 @@ static int at803x_resume(struct phy_devi
-
- static int at803x_probe(struct phy_device *phydev)
- {
- + struct at803x_platform_data *pdata;
- struct device *dev = &phydev->mdio.dev;
- struct at803x_priv *priv;
- struct gpio_desc *gpiod_reset;
- @@ -274,6 +275,12 @@ static int at803x_probe(struct phy_devic
- if (phydev->drv->phy_id != ATH8030_PHY_ID)
- goto does_not_require_reset_workaround;
-
- + pdata = dev_get_platdata(dev);
- + if (pdata && pdata->has_reset_gpio) {
- + devm_gpio_request(dev, pdata->reset_gpio, "reset");
- + gpio_direction_output(pdata->reset_gpio, 1);
- + }
- +
- gpiod_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
- if (IS_ERR(gpiod_reset))
- return PTR_ERR(gpiod_reset);
- @@ -405,15 +412,23 @@ static void at803x_link_change_notify(st
- * cannot recover from by software.
- */
- if (phydev->state == PHY_NOLINK) {
- - if (priv->gpiod_reset && !priv->phy_reset) {
- + if ((priv->gpiod_reset || (pdata && pdata->has_reset_gpio)) &&
- + !priv->phy_reset) {
- struct at803x_context context;
-
- at803x_context_save(phydev, &context);
-
- - gpiod_set_value(priv->gpiod_reset, 1);
- - msleep(1);
- - gpiod_set_value(priv->gpiod_reset, 0);
- - msleep(1);
- + if (pdata && pdata->has_reset_gpio) {
- + gpio_set_value_cansleep(pdata->reset_gpio, 0);
- + msleep(1);
- + gpio_set_value_cansleep(pdata->reset_gpio, 1);
- + msleep(1);
- + } else {
- + gpiod_set_value(priv->gpiod_reset, 1);
- + msleep(1);
- + gpiod_set_value(priv->gpiod_reset, 0);
- + msleep(1);
- + }
-
- at803x_context_restore(phydev, &context);
-
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