net: mscc: ocelot: strengthen type of "u32 reg" in I/O accessors

The "u32 reg" argument that is passed to these functions is not a plain
address, but rather a driver-specific encoding of another enum
ocelot_target target in the upper bits, and an index into the
u32 ocelot->map[target][] array in the lower bits. That encoded value
takes the type "enum ocelot_reg" and is what is passed to these I/O
functions, so let's actually use that to prevent type confusion.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 11 insertions, 9 deletions

diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h
index d757b5e26d26c..277e6d1f2096e 100644
--- a/include/soc/mscc/ocelot.h
+++ b/include/soc/mscc/ocelot.h
@@ -940,15 +940,17 @@ struct ocelot_policer {
 	__ocelot_target_write_ix(ocelot, target, val, reg, 0)
 
 /* I/O */
-u32 ocelot_port_readl(struct ocelot_port *port, u32 reg);
-void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg);
-void ocelot_port_rmwl(struct ocelot_port *port, u32 val, u32 mask, u32 reg);
-int __ocelot_bulk_read_ix(struct ocelot *ocelot, u32 reg, u32 offset, void *buf,
-			  int count);
-u32 __ocelot_read_ix(struct ocelot *ocelot, u32 reg, u32 offset);
-void __ocelot_write_ix(struct ocelot *ocelot, u32 val, u32 reg, u32 offset);
-void __ocelot_rmw_ix(struct ocelot *ocelot, u32 val, u32 mask, u32 reg,
-		     u32 offset);
+u32 ocelot_port_readl(struct ocelot_port *port, enum ocelot_reg reg);
+void ocelot_port_writel(struct ocelot_port *port, u32 val, enum ocelot_reg reg);
+void ocelot_port_rmwl(struct ocelot_port *port, u32 val, u32 mask,
+		      enum ocelot_reg reg);
+int __ocelot_bulk_read_ix(struct ocelot *ocelot, enum ocelot_reg reg,
+			  u32 offset, void *buf, int count);
+u32 __ocelot_read_ix(struct ocelot *ocelot, enum ocelot_reg reg, u32 offset);
+void __ocelot_write_ix(struct ocelot *ocelot, u32 val, enum ocelot_reg reg,
+		       u32 offset);
+void __ocelot_rmw_ix(struct ocelot *ocelot, u32 val, u32 mask,
+		     enum ocelot_reg reg, u32 offset);
 u32 __ocelot_target_read_ix(struct ocelot *ocelot, enum ocelot_target target,
 			    u32 reg, u32 offset);
 void __ocelot_target_write_ix(struct ocelot *ocelot, enum ocelot_target target,