[PATCH v2] mmc: mmci.c: Defer probe() in case of yet uninitialized GPIOs
From: Roland Stigge <hidden>
Date: 2012-06-16 19:04:22
Also in:
linux-mmc, lkml
From: Roland Stigge <hidden>
Date: 2012-06-16 19:04:22
Also in:
linux-mmc, lkml
On 16/06/12 19:23, Arnd Bergmann wrote:
On Saturday 16 June 2012, Roland Stigge wrote:quoted
+ if (of_get_property(np, "wp-gpios", NULL)) { + pdata->gpio_wp = of_get_named_gpio(np, "wp-gpios", 0); + if (pdata->gpio_wp == -ENODEV) + pdata->gpio_wp = -EPROBE_DEFER; + } else { + pdata->gpio_wp = -ENODEV; + }This is still very ugly and there is a certain danfer that we might have to duplicate this across more drivers. Can't we make of_get_named_gpio_flags return -EPROBE_DEFER in cases where we can't find the GPIO number yet but still have a chance of returning it at a later point?
OK, will post a new patch. Roland