[U-Boot] [PATCH] gpio: at91_gpio: Add bank names

[James Byrne]

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.by...@origamienergy.com>

---

 drivers/gpio/at91_gpio.c | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/at91_gpio.c b/drivers/gpio/at91_gpio.c
index 965becf77a..94b2b63a04 100644
--- a/drivers/gpio/at91_gpio.c
+++ b/drivers/gpio/at91_gpio.c
@@ -19,6 +19,28 @@
 
 #define GPIO_PER_BANK  32
 
+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 "";
+}
+
 static struct at91_port *at91_pio_get_port(unsigned port)
 {
        switch (port) {
@@ -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;
 }
 
-- 
2.24.0

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