diff options
| author | Samuel Holland <samuel@sholland.org> | 2020-01-22 07:03:14 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-01-22 07:05:27 +0100 |
| commit | fe77f9bb1185e6986fd0246cf16f02954d7a09bf (patch) | |
| tree | 9f60e7f5bf454f06f443681735e15677eafef391 /drivers/input/misc/axp20x-pek.c | |
| parent | Input: ads7846 - use new `delay` structure for SPI transfer delays (diff) | |
| download | linux-fe77f9bb1185e6986fd0246cf16f02954d7a09bf.tar.xz linux-fe77f9bb1185e6986fd0246cf16f02954d7a09bf.zip | |
Input: axp20x-pek - respect userspace wakeup configuration
Unlike most other power button drivers, this driver unconditionally
enables its wakeup IRQ. It should be using device_may_wakeup() to
respect the userspace configuration of wakeup sources.
Because the AXP20x MFD device uses regmap-irq, the AXP20x PEK IRQs are
nested off of regmap-irq's threaded interrupt handler. The device core
ignores such interrupts, so to actually disable wakeup, we must
explicitly disable all non-wakeup interrupts during suspend.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200115051253.32603-2-samuel@sholland.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/misc/axp20x-pek.c')
| -rw-r--r-- | drivers/input/misc/axp20x-pek.c | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/drivers/input/misc/axp20x-pek.c b/drivers/input/misc/axp20x-pek.c index 4454f1e5a0d3..b1aed062914c 100644 --- a/drivers/input/misc/axp20x-pek.c +++ b/drivers/input/misc/axp20x-pek.c @@ -281,7 +281,7 @@ static int axp20x_pek_probe_input_device(struct axp20x_pek *axp20x_pek, } if (axp20x_pek->axp20x->variant == AXP288_ID) - enable_irq_wake(axp20x_pek->irq_dbr); + device_init_wakeup(&pdev->dev, true); return 0; } @@ -353,6 +353,40 @@ static int axp20x_pek_probe(struct platform_device *pdev) return 0; } +static int __maybe_unused axp20x_pek_suspend(struct device *dev) +{ + struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); + + /* + * As nested threaded IRQs are not automatically disabled during + * suspend, we must explicitly disable non-wakeup IRQs. + */ + if (device_may_wakeup(dev)) { + enable_irq_wake(axp20x_pek->irq_dbf); + enable_irq_wake(axp20x_pek->irq_dbr); + } else { + disable_irq(axp20x_pek->irq_dbf); + disable_irq(axp20x_pek->irq_dbr); + } + + return 0; +} + +static int __maybe_unused axp20x_pek_resume(struct device *dev) +{ + struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) { + disable_irq_wake(axp20x_pek->irq_dbf); + disable_irq_wake(axp20x_pek->irq_dbr); + } else { + enable_irq(axp20x_pek->irq_dbf); + enable_irq(axp20x_pek->irq_dbr); + } + + return 0; +} + static int __maybe_unused axp20x_pek_resume_noirq(struct device *dev) { struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); @@ -372,6 +406,7 @@ static int __maybe_unused axp20x_pek_resume_noirq(struct device *dev) } static const struct dev_pm_ops axp20x_pek_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(axp20x_pek_suspend, axp20x_pek_resume) #ifdef CONFIG_PM_SLEEP .resume_noirq = axp20x_pek_resume_noirq, #endif |