diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-08-07 19:57:53 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-09-11 11:40:13 +0200 |
| commit | 92d801390c1d0659fd52008336ae9daebdfd7509 (patch) | |
| tree | c100d95cd6e4d47673784efc93d62131aa803a64 /drivers/mfd/arizona-irq.c | |
| parent | a70abacb06b884131ec181551a71ef325490f374 (diff) | |
| download | lwn-92d801390c1d0659fd52008336ae9daebdfd7509.tar.gz lwn-92d801390c1d0659fd52008336ae9daebdfd7509.zip | |
mfd: arizona: Disable control interface error reporting for early devices
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>
Diffstat (limited to 'drivers/mfd/arizona-irq.c')
| -rw-r--r-- | drivers/mfd/arizona-irq.c | 35 |
1 files changed, 28 insertions, 7 deletions
diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c index 98ac345f468e..64940c6da93c 100644 --- a/drivers/mfd/arizona-irq.c +++ b/drivers/mfd/arizona-irq.c @@ -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, |