On 4/16/20 6:42 AM, Linus Walleij wrote:
On Tue, Apr 14, 2020 at 7:09 PM Andy Shevchenko
<andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
On Thu, Apr 09, 2020 at 02:58:26PM -0500, Pierre-Louis Bossart wrote:
The GPIOs are used e.g. on HifiBerry DAC+ HATs to control the LED
(GPIO3) and the choice of the 44.1 (GPIO6) or 48 (GPIO3) kHz
oscillator (when present).
Enable basic gpio_chip to get/set values and get/set
directions. Tested with GPIO_LIB from sys/class/gpio, the LED turns
on/off as desired.
One question, can this use existing GPIO infrastructure, like bgpio_init()?
Ah, I see, that one operates over MMIO, while we would need something based on
regmap API.
Bartosz, do we have plans to have bgpio_regmap_init() or alike?
Michael Walle is working on that:
https://lore.kernel.org/linux-gpio/20200402203656.27047-11-michael@xxxxxxxx/
I think we should try to merge it sooner rather than later.
I can provide an ib-* branch for ASoC whenever we agreed
on a basic generic driver.
Thanks for the pointer, I will give it a try.
