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gpio: at91_gpio: Add bank names

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Make the at91_gpio driver set sensible GPIO bank names in the platform
data. This makes the 'gpio status' command a lot more useful.

Signed-off-by: James Byrne <james.byrne@origamienergy.com>
Reviewed-by: Eugen Hristev <eugen.hristev@microchip.com>
This commit is contained in:
James Byrne 2019-11-26 11:52:04 +00:00 committed by Eugen Hristev
parent 464b50a343
commit f3510e9754
1 changed files with 26 additions and 3 deletions
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29
drivers/gpio/at91_gpio.c
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@ -556,6 +556,28 @@ static int at91_gpio_get_function(struct udevice *dev, unsigned offset)
return GPIOF_INPUT;
}
static const char *at91_get_bank_name(uint32_t base_addr)
{
switch (base_addr) {
case ATMEL_BASE_PIOA:
return "PIOA";
case ATMEL_BASE_PIOB:
return "PIOB";
case ATMEL_BASE_PIOC:
return "PIOC";
#if (ATMEL_PIO_PORTS > 3)
case ATMEL_BASE_PIOD:
return "PIOD";
#if (ATMEL_PIO_PORTS > 4)
case ATMEL_BASE_PIOE:
return "PIOE";
#endif
#endif
}
return "undefined";
}
static const struct dm_gpio_ops gpio_at91_ops = {
.direction_input = at91_gpio_direction_input,
.direction_output = at91_gpio_direction_output,
@ -582,14 +604,15 @@ static int at91_gpio_probe(struct udevice *dev)
clk_free(&clk);
uc_priv->bank_name = plat->bank_name;
uc_priv->gpio_count = GPIO_PER_BANK;
#if CONFIG_IS_ENABLED(OF_CONTROL)
plat->base_addr = (uint32_t)devfdt_get_addr_ptr(dev);
#endif
plat->bank_name = at91_get_bank_name(plat->base_addr);
port->regs = (struct at91_port *)plat->base_addr;
uc_priv->bank_name = plat->bank_name;
uc_priv->gpio_count = GPIO_PER_BANK;
return 0;
}