diff options
| author | Herve Codina <herve.codina@bootlin.com> | 2024-06-20 15:01:25 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-06-21 14:12:42 +0300 |
| commit | 9e6d33937b42ca4867af3b341e5d09abca4a2746 (patch) | |
| tree | 55551bec69168a417d64e8af60579c286e73c149 | |
| parent | e5efa3ff412dd1d3ff266be1eea6ee47c9d951c4 (diff) | |
| download | linux-9e6d33937b42ca4867af3b341e5d09abca4a2746.tar.xz | |
net: mdio: mscc-miim: Handle the switch reset
The mscc-miim device can be impacted by the switch reset, at least when
this device is part of the LAN966x PCI device.
Handle this newly added (optional) resets property.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/mdio/mdio-mscc-miim.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/mdio/mdio-mscc-miim.c b/drivers/net/mdio/mdio-mscc-miim.c index c29377c85307..62c47e0dd142 100644 --- a/drivers/net/mdio/mdio-mscc-miim.c +++ b/drivers/net/mdio/mdio-mscc-miim.c @@ -19,6 +19,7 @@ #include <linux/platform_device.h> #include <linux/property.h> #include <linux/regmap.h> +#include <linux/reset.h> #define MSCC_MIIM_REG_STATUS 0x0 #define MSCC_MIIM_STATUS_STAT_PENDING BIT(2) @@ -271,10 +272,17 @@ static int mscc_miim_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; struct regmap *mii_regmap, *phy_regmap; struct device *dev = &pdev->dev; + struct reset_control *reset; struct mscc_miim_dev *miim; struct mii_bus *bus; int ret; + reset = devm_reset_control_get_optional_shared(dev, "switch"); + if (IS_ERR(reset)) + return dev_err_probe(dev, PTR_ERR(reset), "Failed to get reset\n"); + + reset_control_reset(reset); + mii_regmap = ocelot_regmap_from_resource(pdev, 0, &mscc_miim_regmap_config); if (IS_ERR(mii_regmap)) |