[OpenWrt-Devel] [PATCH] Unexport GPIO fix for ramips

[Sebastian Schildt]

Hello there,

not sure how it works with patches in OpenWRT, so I try all channels… I noticed that unexporting GPIOs is broken on ramips (gpio-ralink.c). There is a trac issue with some more details, and I already added the patch there:

https://dev.openwrt.org/ticket/14309


Here it is again for your convenvience:

--- a/drivers/gpio/gpio-ralink.c	2014-09-23 11:06:10.044595879 +0200
+++ b/drivers/gpio/gpio-ralink.c	2014-09-23 11:11:14.063674520 +0200
@@ -258,6 +258,14 @@
 	return pinctrl_request_gpio(gpio);
 }
 
+static void ralink_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+        int gpio = chip->base + offset;
+
+        pinctrl_free_gpio(gpio);
+}
+
+
 static int ralink_gpio_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
@@ -310,6 +318,7 @@
 	rg->chip.get = ralink_gpio_get;
 	rg->chip.set = ralink_gpio_set;
 	rg->chip.request = ralink_gpio_request;
+        rg->chip.free = ralink_gpio_free;
 	rg->chip.to_irq = ralink_gpio_to_irq;
 
 	/* set polarity to low for all lines */



Obviously, it needs to be applied after te patch that creates gpio-ralink.c in the first place. 



MfG

Sebastian
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