i2c: mlxbf: Fix resrticted cast warning of sparse

kblaiech · wsakernel · commit 08e019e27a9e · 2020-11-06T15:51:47.000+01:00
Address warnings "warning: cast to restricted __be32" reported by sparse. Fixes: b5b5b32 ("i2c: mlxbf: I2C SMBus driver for Mellanox BlueField SoC") Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Vadim Pasternak <vadimp@nvidia.com> Signed-off-by: Khalil Blaiech <kblaiech@nvidia.com> Signed-off-by: Wolfram Sang <wsa@kernel.org>
diff --git a/drivers/i2c/busses/i2c-mlxbf.c b/drivers/i2c/busses/i2c-mlxbf.c
@@ -510,7 +510,7 @@ static u32 mlxbf_i2c_read(void __iomem *io, int reg)
  */
 static u32 mlxbf_i2c_read_data(void __iomem *io, int reg)
 {
-	return (u32)be32_to_cpu(mlxbf_i2c_read(io, reg));
+	return ioread32be(io + reg);
 }
 
 /*
@@ -524,7 +524,7 @@ static u32 mlxbf_i2c_read_data(void __iomem *io, int reg)
  */
 static void mlxbf_i2c_write_data(void __iomem *io, int reg, u32 val)
 {
-	mlxbf_i2c_write(io, reg, (u32)cpu_to_be32(val));
+	iowrite32be(val, io + reg);
 }
 
 /*

Original file line number	Diff line number	Diff line change
`@@ -510,7 +510,7 @@ static u32 mlxbf_i2c_read(void __iomem *io, int reg)`
`510`	`510`	`*/`
`511`	`511`	`static u32 mlxbf_i2c_read_data(void __iomem *io, int reg)`
`512`	`512`	`{`
`513`		`- return (u32)be32_to_cpu(mlxbf_i2c_read(io, reg));`
	`513`	`+ return ioread32be(io + reg);`
`514`	`514`	`}`
`515`	`515`
`516`	`516`	`/*`
`@@ -524,7 +524,7 @@ static u32 mlxbf_i2c_read_data(void __iomem *io, int reg)`
`524`	`524`	`*/`
`525`	`525`	`static void mlxbf_i2c_write_data(void __iomem *io, int reg, u32 val)`
`526`	`526`	`{`
`527`		`- mlxbf_i2c_write(io, reg, (u32)cpu_to_be32(val));`
	`527`	`+ iowrite32be(val, io + reg);`
`528`	`528`	`}`
`529`	`529`
`530`	`530`	`/*`