pinctrl: implement PINMUX_MAP_SYS_HOG

This is the same as PINMUX_MAP_PRIMARY_SYS_HOG, except that it allows
you to specify a particular control device.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/pinctrl/machine.h b/include/linux/pinctrl/machine.h
index f5372319d999..0ca32eb63b67 100644
--- a/include/linux/pinctrl/machine.h
+++ b/include/linux/pinctrl/machine.h
@@ -66,6 +66,14 @@ struct pinmux_map {
         { .name = a, .ctrl_dev_name = b, .function = c }
 
 /*
+ * Convenience macro to map a system function onto a certain pinctrl device,
+ * to be hogged by the pinmux core until the system shuts down.
+ */
+#define PINMUX_MAP_SYS_HOG(a, b, c) \
+        { .name = a, .ctrl_dev_name = b, .function = c, \
+          .hog_on_boot = true }
+
+/*
  * Convenience macro to map a function onto the primary device pinctrl device
  * this is especially helpful on systems that have only one pin controller
  * or need to set up a lot of mappings on the primary controller.