[PATCH 02/10] i2c: pasemi: Use io{read,write}32
From: Sven Peter
Date: Sun Sep 26 2021 - 06:00:02 EST
In preparation for splitting this driver up into a platform_driver
and a pci_driver, replace outl/inl usage with ioport_map and
ioread32/iowrite32.
Signed-off-by: Sven Peter <sven@xxxxxxxxxxxxx>
---
drivers/i2c/busses/i2c-pasemi.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c
index 20f2772c0e79..dd31d902a621 100644
--- a/drivers/i2c/busses/i2c-pasemi.c
+++ b/drivers/i2c/busses/i2c-pasemi.c
@@ -20,6 +20,7 @@ static struct pci_driver pasemi_smb_driver;
struct pasemi_smbus {
struct pci_dev *dev;
struct i2c_adapter adapter;
+ void __iomem *ioaddr;
unsigned long base;
int size;
};
@@ -53,13 +54,13 @@ static inline void reg_write(struct pasemi_smbus *smbus, int reg, int val)
{
dev_dbg(&smbus->dev->dev, "smbus write reg %lx val %08x\n",
smbus->base + reg, val);
- outl(val, smbus->base + reg);
+ iowrite32(val, smbus->ioaddr + reg);
}
static inline int reg_read(struct pasemi_smbus *smbus, int reg)
{
int ret;
- ret = inl(smbus->base + reg);
+ ret = ioread32(smbus->ioaddr + reg);
dev_dbg(&smbus->dev->dev, "smbus read reg %lx val %08x\n",
smbus->base + reg, ret);
return ret;
@@ -351,6 +352,12 @@ static int pasemi_smb_probe(struct pci_dev *dev,
goto out_kfree;
}
+ smbus->ioaddr = ioport_map(smbus->base, smbus->size);
+ if (!smbus->ioaddr) {
+ error = -EBUSY;
+ goto out_release_region;
+ }
+
smbus->adapter.owner = THIS_MODULE;
snprintf(smbus->adapter.name, sizeof(smbus->adapter.name),
"PA Semi SMBus adapter at 0x%lx", smbus->base);
@@ -366,12 +373,14 @@ static int pasemi_smb_probe(struct pci_dev *dev,
error = i2c_add_adapter(&smbus->adapter);
if (error)
- goto out_release_region;
+ goto out_ioport_unmap;
pci_set_drvdata(dev, smbus);
return 0;
+ out_ioport_unmap:
+ ioport_unmap(smbus->ioaddr);
out_release_region:
release_region(smbus->base, smbus->size);
out_kfree:
@@ -384,6 +393,7 @@ static void pasemi_smb_remove(struct pci_dev *dev)
struct pasemi_smbus *smbus = pci_get_drvdata(dev);
i2c_del_adapter(&smbus->adapter);
+ ioport_unmap(smbus->ioaddr);
release_region(smbus->base, smbus->size);
kfree(smbus);
}
--
2.25.1