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authorJames Byrne <james.byrne@origamienergy.com>2019-11-26 11:52:04 +0000
committerEugen Hristev <eugen.hristev@microchip.com>2019-12-03 10:17:25 +0200
commitf3510e9754e1163e74e3606880b5698fcaa08a3a (patch)
treea3aab61844832b16eba8075a631b73733203f486 /drivers/gpio/at91_gpio.c
parent464b50a34302ce56a9f30eb27dcedbf04f233188 (diff)
gpio: at91_gpio: Add bank names
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>
Diffstat (limited to 'drivers/gpio/at91_gpio.c')
-rw-r--r--drivers/gpio/at91_gpio.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/gpio/at91_gpio.c b/drivers/gpio/at91_gpio.c
index 965becf77a..dbfed72c61 100644
--- a/drivers/gpio/at91_gpio.c
+++ b/drivers/gpio/at91_gpio.c
@@ -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;
}