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| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2012-02-02 16:20:01 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-02-05 23:08:30 -0700 |
| commit | ff64abefb6680dfc2aca7ecaa5e695949e7335c9 (patch) | |
| tree | 8e580bc26cb65edf3135b25e29ddf8f77d776569 /drivers/of | |
| parent | 9467d298e92455e6fd411d7ef1f367ced940587c (diff) | |
| download | linux-ff64abefb6680dfc2aca7ecaa5e695949e7335c9.tar.gz linux-ff64abefb6680dfc2aca7ecaa5e695949e7335c9.tar.bz2 linux-ff64abefb6680dfc2aca7ecaa5e695949e7335c9.zip | |
of_gpio: add support of of_gpio_named_count to be able to count named gpio
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/gpio.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/of/gpio.c b/drivers/of/gpio.c index 7e62d15d60f6..e034b38590a8 100644 --- a/drivers/of/gpio.c +++ b/drivers/of/gpio.c @@ -78,8 +78,9 @@ err0: EXPORT_SYMBOL(of_get_named_gpio_flags); /** - * of_gpio_count - Count GPIOs for a device + * of_gpio_named_count - Count GPIOs for a device * @np: device node to count GPIOs for + * @propname: property name containing gpio specifier(s) * * The function returns the count of GPIOs specified for a node. * @@ -93,14 +94,14 @@ EXPORT_SYMBOL(of_get_named_gpio_flags); * defines four GPIOs (so this function will return 4), two of which * are not specified. */ -unsigned int of_gpio_count(struct device_node *np) +unsigned int of_gpio_named_count(struct device_node *np, const char* propname) { unsigned int cnt = 0; do { int ret; - ret = of_parse_phandle_with_args(np, "gpios", "#gpio-cells", + ret = of_parse_phandle_with_args(np, propname, "#gpio-cells", cnt, NULL); /* A hole in the gpios = <> counts anyway. */ if (ret < 0 && ret != -EEXIST) @@ -109,7 +110,7 @@ unsigned int of_gpio_count(struct device_node *np) return cnt; } -EXPORT_SYMBOL(of_gpio_count); +EXPORT_SYMBOL(of_gpio_named_count); /** * of_gpio_simple_xlate - translate gpio_spec to the GPIO number and flags |