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drivers/mcp2515: support no rst_pin

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This commit is contained in:
Francisco Molina 2022-04-08 13:56:06 +02:00
parent 0c526f12c6
commit 3084928151
1 changed files with 11 additions and 4 deletions
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15
drivers/mcp2515/mcp2515.c
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@ -99,7 +99,9 @@ int mcp2515_init(candev_mcp2515_t *dev, void (*irq_handler_cb)(void *))
DEBUG("Error setting interrupt pin!\n");
return -1;
}
gpio_init(dev->conf->rst_pin, GPIO_OUT);
if (gpio_is_valid(dev->conf->rst_pin)) {
gpio_init(dev->conf->rst_pin, GPIO_OUT);
}
res = mcp2515_spi_init(dev);
if (res < 0) {
@ -118,9 +120,14 @@ int mcp2515_init(candev_mcp2515_t *dev, void (*irq_handler_cb)(void *))
void mcp2515_reset(candev_mcp2515_t *dev)
{
gpio_clear(dev->conf->rst_pin);
xtimer_usleep(RESET_DELAY_US);
gpio_set(dev->conf->rst_pin);
if (gpio_is_valid(dev->conf->rst_pin)) {
gpio_clear(dev->conf->rst_pin);
xtimer_usleep(RESET_DELAY_US);
gpio_set(dev->conf->rst_pin);
}
else {
mcp2515_spi_reset(dev);
}
xtimer_usleep(_osc_startup(dev));
}