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-rw-r--r--Documentation/devicetree/bindings/net/mscc,miim.yaml10
-rw-r--r--drivers/net/mdio/mdio-mscc-miim.c8
2 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/mscc,miim.yaml b/Documentation/devicetree/bindings/net/mscc,miim.yaml
index 5b292e7c9e46..792f26b06b06 100644
--- a/Documentation/devicetree/bindings/net/mscc,miim.yaml
+++ b/Documentation/devicetree/bindings/net/mscc,miim.yaml
@@ -38,6 +38,16 @@ properties:
clock-frequency: true
+ resets:
+ items:
+ - description:
+ Reset shared with all blocks attached to the Switch Core Register
+ Bus (CSR) including VRAP slave.
+
+ reset-names:
+ items:
+ - const: switch
+
required:
- compatible
- reg
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))