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authorMark Brown <broonie@opensource.wolfsonmicro.com>2008-10-10 15:58:12 +0100
committerLiam Girdwood <lrg@slimlogic.co.uk>2008-10-13 21:51:55 +0100
commit0e7203933224cbe09b5a9125f55b177b8dd5b1bd (patch)
treea0353af32d8a45163885df722baa96c9090ec7a3 /include/linux/mfd
parentc661a0b92d487ac20cc9cddbb8f4d40e4dcdbec1 (diff)
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mfd: Add GPIO pin configuration support for WM8350
The WM8350 provides a number of user-configurable pins providing access to various signals generated by the functions on the chip. These are referred to as GPIO pins in the device documentation but in Linux terms they are more general than that, providing configuration of alternate functions. This patch implements support for selecting the alternate functions for these pins. They can also be used as GPIOs in the normal Linux sense - a subsequent patch will add support for doing so. This code was all written by Liam Girdwood and has had minor updates and rearrangements by Mark Brown. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@openedhand.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'include/linux/mfd')
-rw-r--r--include/linux/mfd/wm8350/gpio.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/mfd/wm8350/gpio.h b/include/linux/mfd/wm8350/gpio.h
index 928aa6e..c6cd2ca 100644
--- a/include/linux/mfd/wm8350/gpio.h
+++ b/include/linux/mfd/wm8350/gpio.h
@@ -323,4 +323,14 @@
#define WM8350_GP1_LVL 0x0002
#define WM8350_GP0_LVL 0x0001
+struct wm8350;
+
+int wm8350_gpio_config(struct wm8350 *wm8350, int gpio, int dir, int func,
+ int pol, int pull, int invert, int debounce);
+
+/*
+ * GPIO Interrupts
+ */
+#define WM8350_IRQ_GPIO(x) (50 + x)
+
#endif