On Sat, Dec 12, 2015 at 11:55 PM, Robert Jarzmik <[email protected]> wrote:
> If a pin control driver is available, use it to change the gpio > direction. If not fallback to directly manipulating the gpio direction > register. > > The reason to use the pin control driver first is that pin control in > pxa2xx architecture implies changing the gpio direction, even for non > gpio functions. In order to do it atomically, only one driver should > control the gpio direction, and if a pin controller is available, it has > to be him. > > There is a small catch : if CONFIG_PINCTRL is selected, then a pinctrl > driver has to be probed. If not, gpio_request() will return > -EPROBE_DEFER as pinctrl_request_gpio() returns it in that case. > > Signed-off-by: Robert Jarzmik <[email protected]> > --- > Since v1: expand commit message to state the gpio possible breakage if > CONFIG_PINCTRL is selected and no pinctrl driver is built. Patch applied. Now you only need to send the incremental diff for patch 1/2. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
