Mika, Rafael: this came from Intel, can you review it? Should it be applied? Yours, Linus Walleij On Mon, May 16, 2016 at 5:18 AM, Zhang, Rui <rui.zhang@xxxxxxxxx> wrote: > From 8590bdcacc94a1ab260b4ea2e6e747b0bc1d9bf8 Mon Sep 17 00:00:00 2001 > From: Zhang Rui <rui.zhang@xxxxxxxxx> > Date: Wed, 11 May 2016 09:02:28 +0800 > Subject: [PATCH] gpiolib-acpi: add _DEP support for Acer One 10 > > On Acer One 10, the ACPI battery driver can not be probed because > it depends on the GPIO controller as well as the I2C controller to work, > Device (BATC) > { > Name (_HID, EisaId ("PNP0C0A") /* Control Method Battery */) > ... > Name (_DEP, Package (0x03) // _DEP: Dependencies > { > I2C1, > GPO2, > GPO0 > }) > ... > } > > The I2C dependency also exists on other platforms and has been fixed by commit > 40e7fcb19293 ("ACPI: Add _DEP support to fix battery issue on Asus T100TA"), > this patch resolves the GPIO dependency for Acer One 10. > > Link:https://bugzilla.kernel.org/show_bug.cgi?id=115191 > CC: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> > CC: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > Tested-by: Stace A. Zacharov <stace75@xxxxxxxxx> > Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> > --- > drivers/gpio/gpiolib-acpi.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c > index 682070d..4b809b0 100644 > --- a/drivers/gpio/gpiolib-acpi.c > +++ b/drivers/gpio/gpiolib-acpi.c > @@ -836,6 +836,7 @@ void acpi_gpiochip_add(struct gpio_chip *chip) > } > > acpi_gpiochip_request_regions(acpi_gpio); > + acpi_walk_dep_device_list(handle); > } > > void acpi_gpiochip_remove(struct gpio_chip *chip) > -- > 1.9.1 > > -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html