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mfd: arizona: Disable control interface error reporting for early devices

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Early revisions of the initial Arizona-based devices can generate spurious
control interface errors in certain circumstances. Avoid causing confusion
by disabling the control interface error reporting on these devices.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mark Brown 2012-08-07 19:57:53 +01:00 committed by Samuel Ortiz
parent a70abacb06
commit 92d801390c
1 changed files with 28 additions and 7 deletions
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35
drivers/mfd/arizona-irq.c
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@ -156,18 +156,35 @@ int arizona_irq_init(struct arizona *arizona)
int flags = IRQF_ONESHOT;
int ret, i;
const struct regmap_irq_chip *aod, *irq;
bool ctrlif_error = true;
switch (arizona->type) {
#ifdef CONFIG_MFD_WM5102
case WM5102:
aod = &wm5102_aod;
irq = &wm5102_irq;
switch (arizona->rev) {
case 0:
ctrlif_error = false;
break;
default:
break;
}
break;
#endif
#ifdef CONFIG_MFD_WM5110
case WM5110:
aod = &wm5110_aod;
irq = &wm5110_irq;
switch (arizona->rev) {
case 0:
ctrlif_error = false;
break;
default:
break;
}
break;
#endif
default:
@ -226,13 +243,17 @@ int arizona_irq_init(struct arizona *arizona)
}
/* Handle control interface errors in the core */
i = arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR);
ret = request_threaded_irq(i, NULL, arizona_ctrlif_err, IRQF_ONESHOT,
"Control interface error", arizona);
if (ret != 0) {
dev_err(arizona->dev, "Failed to request boot done %d: %d\n",
arizona->irq, ret);
goto err_ctrlif;
if (ctrlif_error) {
i = arizona_map_irq(arizona, ARIZONA_IRQ_CTRLIF_ERR);
ret = request_threaded_irq(i, NULL, arizona_ctrlif_err,
IRQF_ONESHOT,
"Control interface error", arizona);
if (ret != 0) {
dev_err(arizona->dev,
"Failed to request CTRLIF_ERR %d: %d\n",
arizona->irq, ret);
goto err_ctrlif;
}
}
ret = request_threaded_irq(arizona->irq, NULL, arizona_irq_thread,