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.
--
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm
Technologies, Inc. Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.
--
To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
