net: mscc: ocelot: get HSIO regmap from syscon

HSIO address space was moved to a syscon, hence we need to get the
regmap of this address space from there and no more from the device
node.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mscc/ocelot_board.c

@@ -9,6 +9,7 @@
 #include <linux/netdevice.h>
 #include <linux/of_mdio.h>
 #include <linux/of_platform.h>
+#include <linux/mfd/syscon.h>
 #include <linux/skbuff.h>
 
 #include "ocelot.h"
@@ -168,6 +169,7 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
 	struct device_node *np = pdev->dev.of_node;
 	struct device_node *ports, *portnp;
 	struct ocelot *ocelot;
+	struct regmap *hsio;
 	u32 val;
 
 	struct {
@@ -179,7 +181,6 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
 		{ QSYS, "qsys" },
 		{ ANA, "ana" },
 		{ QS, "qs" },
-		{ HSIO, "hsio" },
 	};
 
 	if (!np && !pdev->dev.platform_data)
@@ -202,6 +203,14 @@ static int mscc_ocelot_probe(struct platform_device *pdev)
 		ocelot->targets[res[i].id] = target;
 	}
 
+	hsio = syscon_regmap_lookup_by_compatible("mscc,ocelot-hsio");
+	if (IS_ERR(hsio)) {
+		dev_err(&pdev->dev, "missing hsio syscon\n");
+		return PTR_ERR(hsio);
+	}
+
+	ocelot->targets[HSIO] = hsio;
+
 	err = ocelot_chip_init(ocelot);
 	if (err)
 		return err;