diff options
| author | Tobias Klauser <tklauser@distanz.ch> | 2011-09-09 11:09:50 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-09-20 22:46:32 -0700 |
| commit | cca84699a079a91b0a0cb4f2da8548e56859376a (patch) | |
| tree | cbce1c7311de1f9a739e489101ab19a4555f3d09 /drivers/input/keyboard/gpio_keys.c | |
| parent | c3a01ba9e45f01c6505a41efb33c420a0c959eb3 (diff) | |
Input: gpio_keys - use of_property_read_u32()
Use the of_property_read_u32() helper function to retrieve u32 values
from the device tree. Also do not pass the len parameter to
of_get_property if it isn't checked afterwards.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/keyboard/gpio_keys.c')
| -rw-r--r-- | drivers/input/keyboard/gpio_keys.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c index 67df91af8424..ed1ed469d085 100644 --- a/drivers/input/keyboard/gpio_keys.c +++ b/drivers/input/keyboard/gpio_keys.c @@ -461,8 +461,7 @@ static int gpio_keys_get_devtree_pdata(struct device *dev, struct device_node *node, *pp; int i; struct gpio_keys_button *buttons; - const u32 *reg; - int len; + u32 reg; node = dev->of_node; if (node == NULL) @@ -470,7 +469,7 @@ static int gpio_keys_get_devtree_pdata(struct device *dev, memset(pdata, 0, sizeof *pdata); - pdata->rep = !!of_get_property(node, "autorepeat", &len); + pdata->rep = !!of_get_property(node, "autorepeat", NULL); /* First count the subnodes */ pdata->nbuttons = 0; @@ -498,22 +497,25 @@ static int gpio_keys_get_devtree_pdata(struct device *dev, buttons[i].gpio = of_get_gpio_flags(pp, 0, &flags); buttons[i].active_low = flags & OF_GPIO_ACTIVE_LOW; - reg = of_get_property(pp, "linux,code", &len); - if (!reg) { + if (of_property_read_u32(pp, "linux,code", ®)) { dev_err(dev, "Button without keycode: 0x%x\n", buttons[i].gpio); goto out_fail; } - buttons[i].code = be32_to_cpup(reg); + buttons[i].code = reg; - buttons[i].desc = of_get_property(pp, "label", &len); + buttons[i].desc = of_get_property(pp, "label", NULL); - reg = of_get_property(pp, "linux,input-type", &len); - buttons[i].type = reg ? be32_to_cpup(reg) : EV_KEY; + if (of_property_read_u32(pp, "linux,input-type", ®) == 0) + buttons[i].type = reg; + else + buttons[i].type = EV_KEY; buttons[i].wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL); - reg = of_get_property(pp, "debounce-interval", &len); - buttons[i].debounce_interval = reg ? be32_to_cpup(reg) : 5; + if (of_property_read_u32(pp, "debounce-interval", ®) == 0) + buttons[i].debounce_interval = reg; + else + buttons[i].debounce_interval = 5; i++; } |