Implement the above two functions. The format of input parameters is
"x_y", where x is the bank number and y is the pin number in that bank.
Example:
=> gpio i 3_13
gpio: pin 3_13 (gpio 107) value is 0
Signed-off-by: Marek Vasut <ma...@denx.de>
Cc: Detlev Zundel <d...@denx.de>
Cc: Mike Frysinger <vap...@gentoo.org>
Cc: Stefano Babic <sba...@denx.de>
---
drivers/gpio/mxs_gpio.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/drivers/gpio/mxs_gpio.c b/drivers/gpio/mxs_gpio.c
index 38dbc81..988b105 100644
--- a/drivers/gpio/mxs_gpio.c
+++ b/drivers/gpio/mxs_gpio.c
@@ -130,3 +130,35 @@ int gpio_free(unsigned gpio)
{
return 0;
}
+
+int gpio_from_string(const char *cname)
+{
+ char *name = (char *)cname;
+ char *bank, *pin, *endp;
+ int b, p;
+
+ bank = strtok(name, "_");
+ if (!bank)
+ return -1;
+
+ pin = strtok(NULL, "_");
+ if (!pin)
+ return -1;
+
+ b = simple_strtol(bank, &endp, 10);
+ if (*endp != '\0')
+ return -1;
+
+ p = simple_strtol(pin, &endp, 10);
+ if (*endp != '\0')
+ return -1;
+
+ return MXS_IOMUX_PAD(b, p, 0, 0, 0, 0);
+}
+
+int gpio_to_string(int gpio, char *buf, int buflen)
+{
+ int ret;
+ ret = snprintf(buf, buflen, "%i_%i", PAD_BANK(gpio), PAD_PIN(gpio));
+ return ret < buflen;
+}
--
1.7.10
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