Re: [alsa-devel] Fwd: [PATCH 1/1] SPI : spi-pxa2xx : fix spi init of WM510205 codec via ACPI (resend)

Christian Hartmann
2015-08-10T12:43:01Z

2015-08-10 11:26 GMT+02:00 Mika Westerberg <mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>:
> On Mon, Aug 10, 2015 at 11:20:04AM +0200, Christian Hartmann wrote:
>> @Mika: I actually view a patch by you from 6. May 2015 where you
>> added dev_gpio_irq_get() and the acpi_dev_gpio_irq_get() functions,
>> seems to be related here to, right??
>
> That's right if you have GpioInt -resource somewhere you need to
> translate to Linux IRQ number (and use it via irqchip instead of gpiolib
> API).
>
> What was done for I2C core with addition of acpi_dev_gpio_irq_get() is
> that now it automatically takes first GpioInt of an I2C device and
> assigns the translated IRQ number to client->irq if it is not yet
> assigned to a valid IRQ.

Hi,

@Mika

some feedback to the first patch today

I have patched it to use the acpi_dev_gpio_irq_get()
and after reboot I have a message seen below, it seems the irq uses
actually the gpio pin 146 .

[ 6.195479] acpi WM510205:00: GPIO: looking up 0 in _CRS
[ 6.195560] arizona spi-WM510205:00: arizona_of_get_core_pdata
(ACPI) using irq 146

So I go on and patching again to have also the ldoena and reset lines
getting via acpi...

cheers
chris