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uwb: clean up whci_wait_for() timeout error message 

All callers of whci_wait_for() should get consistant error message if a
timeout occurs.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
This commit is contained in:
David Vrabel 2008-11-25 14:34:47 +00:00
parent 56968d0c1a
commit 5a4e1a795d
2 changed files with 8 additions and 32 deletions
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36
drivers/uwb/whc-rc.c
View File

@ -332,47 +332,23 @@ void whcrc_release_rc_umc(struct whcrc *whcrc)
static int whcrc_start_rc(struct uwb_rc *rc)
{
struct whcrc *whcrc = rc->priv;
int result = 0;
struct device *dev = &whcrc->umc_dev->dev;
unsigned long start, duration;
/* Reset the thing */
le_writel(URCCMD_RESET, whcrc->rc_base + URCCMD);
if (d_test(3))
start = jiffies;
if (whci_wait_for(dev, whcrc->rc_base + URCCMD, URCCMD_RESET, 0,
5000, "device to reset at init") < 0) {
result = -EBUSY;
goto error;
} else if (d_test(3)) {
duration = jiffies - start;
if (duration > msecs_to_jiffies(40))
dev_err(dev, "Device took %ums to "
"reset. MAX expected: 40ms\n",
jiffies_to_msecs(duration));
}
5000, "hardware reset") < 0)
return -EBUSY;
/* Set the event buffer, start the controller (enable IRQs later) */
le_writel(0, whcrc->rc_base + URCINTR);
le_writel(URCCMD_RS, whcrc->rc_base + URCCMD);
result = -ETIMEDOUT;
if (d_test(3))
start = jiffies;
if (whci_wait_for(dev, whcrc->rc_base + URCSTS, URCSTS_HALTED, 0,
5000, "device to start") < 0)
goto error;
if (d_test(3)) {
duration = jiffies - start;
if (duration > msecs_to_jiffies(40))
dev_err(dev, "Device took %ums to start. "
"MAX expected: 40ms\n",
jiffies_to_msecs(duration));
}
5000, "radio controller start") < 0)
return -ETIMEDOUT;
whcrc_enable_events(whcrc);
result = 0;
le_writel(URCINTR_EN_ALL, whcrc->rc_base + URCINTR);
error:
return result;
return 0;
}
@ -394,7 +370,7 @@ void whcrc_stop_rc(struct uwb_rc *rc)
le_writel(0, whcrc->rc_base + URCCMD);
whci_wait_for(&umc_dev->dev, whcrc->rc_base + URCSTS,
URCSTS_HALTED, URCSTS_HALTED, 100, "URCSTS.HALTED");
URCSTS_HALTED, URCSTS_HALTED, 100, "radio controller stop");
}
static void whcrc_init(struct whcrc *whcrc)

4
drivers/uwb/whci.c
View File

@ -67,11 +67,11 @@ int whci_wait_for(struct device *dev, u32 __iomem *reg, u32 mask, u32 result,
val = le_readl(reg);
if ((val & mask) == result)
break;
msleep(10);
if (t >= max_ms) {
dev_err(dev, "timed out waiting for %s ", tag);
dev_err(dev, "%s timed out\n", tag);
return -ETIMEDOUT;
}
msleep(10);
t += 10;
}
return 0;