diff options
author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-02-18 07:28:37 -0800 |
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committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-02-18 07:28:37 -0800 |
commit | 65d2918e716afb89359cfa59734d76c1ff8700cb (patch) | |
tree | 4685404f96642243d62c3a1a823340913d087090 /drivers/gpio/gpiolib-of.c | |
parent | bf40e5561fd288a505d5d8d8bf45eef96fe7253d (diff) | |
parent | 338d00cfef07d74a072f96821c64b20f98517d72 (diff) |
Merge branch 'cleanups'
Merge cleanups requested by Linus.
* cleanups: (3 commits)
pnfs: Refactor the *_layout_mark_request_commit to use pnfs_layout_mark_request_commit
nfs: Can call nfs_clear_page_commit() instead
nfs: Provide and use helper functions for marking a page as unstable
Diffstat (limited to 'drivers/gpio/gpiolib-of.c')
-rw-r--r-- | drivers/gpio/gpiolib-of.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 604dbe60bdee..8cad8e400b44 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -45,8 +45,14 @@ static int of_gpiochip_find_and_xlate(struct gpio_chip *gc, void *data) return false; ret = gc->of_xlate(gc, &gg_data->gpiospec, gg_data->flags); - if (ret < 0) - return false; + if (ret < 0) { + /* We've found the gpio chip, but the translation failed. + * Return true to stop looking and return the translation + * error via out_gpio + */ + gg_data->out_gpio = ERR_PTR(ret); + return true; + } gg_data->out_gpio = gpiochip_get_desc(gc, ret); return true; @@ -204,6 +210,23 @@ err0: } EXPORT_SYMBOL(of_mm_gpiochip_add); +/** + * of_mm_gpiochip_remove - Remove memory mapped GPIO chip (bank) + * @mm_gc: pointer to the of_mm_gpio_chip allocated structure + */ +void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc) +{ + struct gpio_chip *gc = &mm_gc->gc; + + if (!mm_gc) + return; + + gpiochip_remove(gc); + iounmap(mm_gc->regs); + kfree(gc->label); +} +EXPORT_SYMBOL(of_mm_gpiochip_remove); + #ifdef CONFIG_PINCTRL static void of_gpiochip_add_pin_range(struct gpio_chip *chip) { |