On Thu, Oct 12, 2017 at 9:39 AM, Stephen Boyd <sboyd@xxxxxxxxxxxxxx> wrote: > For qcom platforms the driver will never be able to return the > direction for these certain pins because reading the register is > not allowed by the firmware. Doing so will cause the device to > crash with a security violation. So I guess the driver needs to know what pin registers it can't access so the user does not get a gun to shoot in the foot with. If we augment gpiolib to just handle -EACCES or something (-EIO?) from the driver .get_direction() callback for these lines, things should be smooth? Yours, Linus Walleij -- 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
