pinctrl: generic: update references to Documentation/pinctrl.txt

Update deprecated references to Documentation/pinctrl.txt since it has been
moved to Documentation/driver-api/pinctl.rst.

Signed-off-by: Ludovic Desroches <ludovic.desroches@o2linux.fr>
Fixes: 5a9b738 ("pinctrl.txt: move it to the driver-api book")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/gpio/gpio-legacy.txt

@@ -459,7 +459,7 @@ pin controller?
 
 This is done by registering "ranges" of pins, which are essentially
 cross-reference tables. These are described in
-Documentation/pinctrl.txt
+Documentation/driver-api/pinctl.rst
 
 While the pin allocation is totally managed by the pinctrl subsystem,
 gpio (under gpiolib) is still maintained by gpio drivers. It may happen

MAINTAINERS

@@ -10375,7 +10375,7 @@ L:	linux-gpio@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git
 S:	Maintained
 F:	Documentation/devicetree/bindings/pinctrl/
-F:	Documentation/pinctrl.txt
+F:	Documentation/driver-api/pinctl.rst
 F:	drivers/pinctrl/
 F:	include/linux/pinctrl/
 

include/linux/device.h

@@ -843,7 +843,7 @@ struct dev_links_info {
  * 		hibernation, system resume and during runtime PM transitions
  * 		along with subsystem-level and driver-level callbacks.
  * @pins:	For device pin management.
- *		See Documentation/pinctrl.txt for details.
+ *		See Documentation/driver-api/pinctl.rst for details.
  * @msi_list:	Hosts MSI descriptors
  * @msi_domain: The generic MSI domain this device is using.
  * @numa_node:	NUMA node this device is close to.

include/linux/pinctrl/pinconf-generic.h

@@ -81,8 +81,8 @@
  * 	it.
  * @PIN_CONFIG_OUTPUT: this will configure the pin as an output and drive a
  * 	value on the line. Use argument 1 to indicate high level, argument 0 to
- * 	indicate low level. (Please see Documentation/pinctrl.txt, section
- * 	"GPIO mode pitfalls" for a discussion around this parameter.)
+ *	indicate low level. (Please see Documentation/driver-api/pinctl.rst,
+ *	section "GPIO mode pitfalls" for a discussion around this parameter.)
  * @PIN_CONFIG_POWER_SOURCE: if the pin can select between different power
  *	supplies, the argument to this parameter (on a custom format) tells
  *	the driver which alternative power source to use.