openwrtv3/target/linux/ar71xx/patches-4.9/902-at803x-add-reset-gpio-pdata.patch
Kevin Darbyshire-Bryant 7dca1bae82 kernel: bump to 4.9.105
Refresh patches.

Drop patches that have been upstreamed:
target/linux/ar71xx/patches-4.9/106-01-MIPS-ath79-fix-AR724X_PLL_REG_PCIE_CONFIG-offset.patch
target/linux/generic/backport-4.9/095-v4.12-ipv6-Need-to-export-ipv6_push_frag_opts-for-tunnelin.patch
target/linux/generic/pending-4.9/180-net-phy-at803x-add-support-for-AT8032.patch
target/linux/generic/pending-4.9/181-net-usb-add-lte-modem-wistron-neweb-d18q1.patch
target/linux/generic/pending-4.9/182-net-qmi_wwan-add-BroadMobi-BM806U-2020-2033.patch

Compile & run tested: ar71xx Archer C7 v2

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2018-06-01 08:25:14 +02:00

68 lines
2.1 KiB
Diff

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 <nbd@nbd.name>
--- 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);