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yaml
---
r: 23233
b: refs/heads/master
c: ef4d927
h: refs/heads/master
i:
  23231: ecfeade
v: v3
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Ben Gardner authored and Greg Kroah-Hartman committed Mar 23, 2006
1 parent 9298b62 commit eaf7e4c
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Showing 2 changed files with 18 additions and 26 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 99c3adb4d5a2d0727d656f32d5de885581d3feec
refs/heads/master: ef4d9275e2949976cb43c8bd0c11cb77b9b017e9
42 changes: 17 additions & 25 deletions trunk/drivers/i2c/busses/scx200_acb.c
Original file line number Diff line number Diff line change
Expand Up @@ -45,12 +45,6 @@ static int base[MAX_DEVICES] = { 0x820, 0x840 };
module_param_array(base, int, NULL, 0);
MODULE_PARM_DESC(base, "Base addresses for the ACCESS.bus controllers");

#ifdef DEBUG
#define DBG(x...) printk(KERN_DEBUG NAME ": " x)
#else
#define DBG(x...)
#endif

/* The hardware supports interrupt driven mode too, but I haven't
implemented that. */
#define POLLED_MODE 1
Expand Down Expand Up @@ -119,8 +113,8 @@ static void scx200_acb_machine(struct scx200_acb_iface *iface, u8 status)
{
const char *errmsg;

DBG("state %s, status = 0x%02x\n",
scx200_acb_state_name[iface->state], status);
dev_dbg(&iface->adapter.dev, "state %s, status = 0x%02x\n",
scx200_acb_state_name[iface->state], status);

if (status & ACBST_BER) {
errmsg = "bus error";
Expand Down Expand Up @@ -209,8 +203,8 @@ static void scx200_acb_machine(struct scx200_acb_iface *iface, u8 status)
return;

negack:
DBG("negative acknowledge in state %s\n",
scx200_acb_state_name[iface->state]);
dev_dbg(&iface->adapter.dev, "negative ack in state %s\n",
scx200_acb_state_name[iface->state]);

iface->state = state_idle;
iface->result = -ENXIO;
Expand Down Expand Up @@ -326,19 +320,15 @@ static s32 scx200_acb_smbus_xfer(struct i2c_adapter *adapter,
return -EINVAL;
}

DBG("size=%d, address=0x%x, command=0x%x, len=%d, read=%d\n",
size, address, command, len, rw == I2C_SMBUS_READ);
dev_dbg(&adapter->dev,
"size=%d, address=0x%x, command=0x%x, len=%d, read=%d\n",
size, address, command, len, rw);

if (!len && rw == I2C_SMBUS_READ) {
dev_warn(&adapter->dev, "zero length read\n");
dev_dbg(&adapter->dev, "zero length read\n");
return -EINVAL;
}

if (len && !buffer) {
dev_warn(&adapter->dev, "nonzero length but no buffer\n");
return -EFAULT;
}

down(&iface->sem);

iface->address_byte = address<<1;
Expand Down Expand Up @@ -375,7 +365,7 @@ static s32 scx200_acb_smbus_xfer(struct i2c_adapter *adapter,
data->word = le16_to_cpu(cur_word);

#ifdef DEBUG
DBG(": transfer done, result: %d", rc);
dev_dbg(&adapter->dev, "transfer done, result: %d", rc);
if (buffer) {
int i;
printk(" data:");
Expand Down Expand Up @@ -412,15 +402,16 @@ static int scx200_acb_probe(struct scx200_acb_iface *iface)
outb(0x70, ACBCTL2);

if (inb(ACBCTL2) != 0x70) {
DBG("ACBCTL2 readback failed\n");
pr_debug(NAME ": ACBCTL2 readback failed\n");
return -ENXIO;
}

outb(inb(ACBCTL1) | ACBCTL1_NMINTE, ACBCTL1);

val = inb(ACBCTL1);
if (val) {
DBG("disabled, but ACBCTL1=0x%02x\n", val);
pr_debug(NAME ": disabled, but ACBCTL1=0x%02x\n",
val);
return -ENXIO;
}

Expand All @@ -430,7 +421,8 @@ static int scx200_acb_probe(struct scx200_acb_iface *iface)

val = inb(ACBCTL1);
if ((val & ACBCTL1_NMINTE) != ACBCTL1_NMINTE) {
DBG("enabled, but NMINTE won't be set, ACBCTL1=0x%02x\n", val);
pr_debug(NAME ": enabled, but NMINTE won't be set, "
"ACBCTL1=0x%02x\n", val);
return -ENXIO;
}

Expand Down Expand Up @@ -464,7 +456,7 @@ static int __init scx200_acb_create(int base, int index)
snprintf(description, sizeof(description),
"NatSemi SCx200 ACCESS.bus [%s]", adapter->name);
if (request_region(base, 8, description) == 0) {
dev_err(&adapter->dev, "can't allocate io 0x%x-0x%x\n",
printk(KERN_ERR NAME ": can't allocate io 0x%x-0x%x\n",
base, base + 8-1);
rc = -EBUSY;
goto errout;
Expand All @@ -473,14 +465,14 @@ static int __init scx200_acb_create(int base, int index)

rc = scx200_acb_probe(iface);
if (rc) {
dev_warn(&adapter->dev, "probe failed\n");
printk(KERN_WARNING NAME ": probe failed\n");
goto errout;
}

scx200_acb_reset(iface);

if (i2c_add_adapter(adapter) < 0) {
dev_err(&adapter->dev, "failed to register\n");
printk(KERN_ERR NAME ": failed to register\n");
rc = -ENODEV;
goto errout;
}
Expand Down

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