| Message ID | 20221019171314.86325-1-alexandru.tachici@analog.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 36934cac7aaffaf11cb8fad1e828dd61708d9b89 |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | [net-next,1/2] net: ethernet: adi: adin1110: add reset GPIO | expand |
Hello: This series was applied to netdev/net-next.git (master) by David S. Miller <davem@davemloft.net>: On Wed, 19 Oct 2022 20:13:13 +0300 you wrote: > Add an optional GPIO to be used for a hardware reset of the IC. > > Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com> > --- > drivers/net/ethernet/adi/adin1110.c | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) Here is the summary with links: - [net-next,1/2] net: ethernet: adi: adin1110: add reset GPIO https://git.kernel.org/netdev/net-next/c/36934cac7aaf - [net-next,2/2] dt-bindings: net: adin1110: Document reset https://git.kernel.org/netdev/net-next/c/3bd5549bd479 You are awesome, thank you!
diff --git a/drivers/net/ethernet/adi/adin1110.c b/drivers/net/ethernet/adi/adin1110.c index 78ded19dd8c1..3e090ff9b966 100644 --- a/drivers/net/ethernet/adi/adin1110.c +++ b/drivers/net/ethernet/adi/adin1110.c @@ -1082,9 +1082,30 @@ static void adin1110_adjust_link(struct net_device *dev) */ static int adin1110_check_spi(struct adin1110_priv *priv) { + struct gpio_desc *reset_gpio; int ret; u32 val; + reset_gpio = devm_gpiod_get_optional(&priv->spidev->dev, "reset", + GPIOD_OUT_LOW); + if (reset_gpio) { + /* MISO pin is used for internal configuration, can't have + * anyone else disturbing the SDO line. + */ + spi_bus_lock(priv->spidev->controller); + + gpiod_set_value(reset_gpio, 1); + fsleep(10000); + gpiod_set_value(reset_gpio, 0); + + /* Need to wait 90 ms before interacting with + * the MAC after a HW reset. + */ + fsleep(90000); + + spi_bus_unlock(priv->spidev->controller); + } + ret = adin1110_read_reg(priv, ADIN1110_PHY_ID, &val); if (ret < 0) return ret;
Add an optional GPIO to be used for a hardware reset of the IC. Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com> --- drivers/net/ethernet/adi/adin1110.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)