From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans de Goede Subject: [PATCH v3] gpio: acpi: Call enable_irq_wake for _IAE GpioInts with Wake set Date: Fri, 24 Mar 2017 11:08:47 +0100 Message-ID: <20170324100847.25434-1-hdegoede@redhat.com> Return-path: Sender: linux-gpio-owner@vger.kernel.org To: Mika Westerberg , Linus Walleij , Alexandre Courbot Cc: Hans de Goede , linux-acpi@vger.kernel.org, Takashi Iwai , Andy Shevchenko , linux-gpio@vger.kernel.org List-Id: linux-acpi@vger.kernel.org On Bay Trail / Cherry Trail systems with a LID switch, the LID switch is often connect to a gpioint handled by an _IAE event handler. Before this commit such systems would not wake up when opening the lid, requiring the powerbutton to be pressed after opening the lid to wakeup. Note that Bay Trail / Cherry Trail systems use suspend-to-idle, so the interrupts are generated anyway on those lines on lid switch changes, but they are treated by the IRQ subsystem as spurious while suspended if not marked as wakeup IRQs. This commit calls enable_irq_wake() for _IAE GpioInts with a valid event handler which have their Wake flag set. This fixes such systems not waking up when opening the lid. Signed-off-by: Hans de Goede Acked-by: Mika Westerberg --- Changes in v2: -Improve commit msg -Add Mika's Acked-by Changes in v3: -Use irqd_is_wakeup_set rather then tracking this ourselves --- drivers/gpio/gpiolib-acpi.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 8cd3f66..2972cad 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -266,6 +266,9 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, goto fail_free_event; } + if (agpio->wake_capable == ACPI_WAKE_CAPABLE) + enable_irq_wake(irq); + list_add_tail(&event->node, &acpi_gpio->events); return AE_OK; @@ -339,6 +342,9 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) list_for_each_entry_safe_reverse(event, ep, &acpi_gpio->events, node) { struct gpio_desc *desc; + if (irqd_is_wakeup_set(irq_get_irq_data(event->irq))) + disable_irq_wake(event->irq); + free_irq(event->irq, event); desc = event->desc; if (WARN_ON(IS_ERR(desc))) -- 2.9.3