On 07/14/2017 12:11 PM, Stephen Boyd wrote:
gpiochips also have a request() hook. Can we use that before
initializing direction to make sure the GPIO is accessible?
So I tried it, and it didn't work:
static int msm_gpio_request(struct gpio_chip *chip, unsigned int offset)
{
pr_info("%s:%u offset=%u\n", __func__, __LINE__, offset);
return 0;
}
static struct gpio_chip msm_gpio_template = {
.request = msm_gpio_request,
...
msm_gpio_request() is never called when the driver loads. In fact, I
can't figure out when it would be called.
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