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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-03-01 20:12:46 +0000
committerSamuel Ortiz <sameo@linux.intel.com>2011-03-23 10:42:01 +0100
commit93619c2106e2c968a260ebffb75ddc5efa567c16 (patch)
tree7ff5933b26bcf1d995b672d13df899d6ea8800d8 /include/linux/mfd/wm831x
parentd664f20020e0a3564d7aaba6625aa58d24283b7d (diff)
mfd: Add platform data to support multiple WM831x devices per board
If a system contains multiple WM831x devices we need to pass a device number through to the MFD so that we use unique device IDs when we instantiate child devices. In order to get support for this into 2.6.39 add some platform data to support the configuration, but no implementation as yet. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include/linux/mfd/wm831x')
-rw-r--r--include/linux/mfd/wm831x/pdata.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mfd/wm831x/pdata.h b/include/linux/mfd/wm831x/pdata.h
index ac3aa73943e..afe4db49402 100644
--- a/include/linux/mfd/wm831x/pdata.h
+++ b/include/linux/mfd/wm831x/pdata.h
@@ -104,6 +104,9 @@ struct wm831x_watchdog_pdata {
#define WM831X_MAX_ISINK 2
struct wm831x_pdata {
+ /** Used to distinguish multiple WM831x chips */
+ int wm831x_num;
+
/** Called before subdevices are set up */
int (*pre_init)(struct wm831x *wm831x);
/** Called after subdevices are set up */