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ioexpander/gpio: Remove the hardcode 100 limitation

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it's very easy to have more than 100 GPIOs on the modern SoC

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao
2021-10-19 16:00:19 +08:00
committed by David Sidrane
parent f1f0bcc521
commit 7183009400
1 changed files with 3 additions and 4 deletions
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drivers/ioexpander/gpio.c
+3 -4
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@@ -524,11 +524,10 @@ static int gpio_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
int gpio_pin_register(FAR struct gpio_dev_s *dev, int minor) int gpio_pin_register(FAR struct gpio_dev_s *dev, int minor)
{ {
FAR const char *fmt; FAR const char *fmt;
char devname[16]; char devname[32];
int ret; int ret;
DEBUGASSERT(dev != NULL && dev->gp_ops != NULL && DEBUGASSERT(dev != NULL && dev->gp_ops != NULL);
(unsigned int)minor < 100);
switch (dev->gp_pintype) switch (dev->gp_pintype)
{ {
@@ -619,7 +618,7 @@ void gpio_pin_unregister(FAR struct gpio_dev_s *dev, int minor)
break; break;
} }
snprintf(devname, 16, fmt, (unsigned int)minor); snprintf(devname, sizeof(devname), fmt, (unsigned int)minor);
gpioinfo("Unregistering %s\n", devname); gpioinfo("Unregistering %s\n", devname);
unregister_driver(devname); unregister_driver(devname);