From mboxrd@z Thu Jan 1 00:00:00 1970 From: aletes.xgr@gmail.com (Alexandre Pereira da Silva) Date: Tue, 17 Jul 2012 15:30:46 -0300 Subject: [PATCH RESEND] gpio: of_get_named_gpio_flags() return -EPROBE_DEFER if GPIO not yet available In-Reply-To: References: <1340836334-20427-1-git-send-email-stigge@antcom.de> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Jul 17, 2012 at 3:24 PM, Linus Walleij wrote: > On Thu, Jun 28, 2012 at 12:32 AM, Roland Stigge wrote: > >> of_get_named_gpio_flags() and of_get_named_gpio() return -EPROBE_DEFER if the >> respective GPIO is not (yet) available. This is useful if driver's probe() >> functions try to get a GPIO whose controller isn't probed yet. Thus, the driver >> can be probed again later on. >> >> The function still returns -EINVAL on other errors (parse error or node doesn't >> exist). This way, the case of an optional/intentionally missing GPIO is handled >> appropriately. >> >> Signed-off-by: Roland Stigge > > Patch applied, if all gpio stuff shall defer properly in v3.6 we need this > so let's do some testing in -next! > > Would be nice to get some ACK besides my own... You can add mine. I've been using this patch for quite some time now. Acked-by: Alexandre Pereira da Silva > Yours, > Linus Walleij