[126/152] mfd: Support additional parent IDs for wm831x

Greg KH
2011-01-06T00:38:01Z

From: Mark Brown <broonie@opensource.wolfsonmicro.com>

commit b93cef556162b0f33399bfe5f307c54f51554e09 upstream.

Some newer device revisions add a second parent ID. Support this in
the device validity checks done at startup.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/mfd/wm831x-core.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

--- a/drivers/mfd/wm831x-core.c
+++ b/drivers/mfd/wm831x-core.c
@@ -1464,7 +1464,11 @@ static int wm831x_device_init(struct wm8
dev_err(wm831x->dev, "Failed to read parent ID: %d\n", ret);
goto err;
}
- if (ret != 0x6204) {
+ switch (ret) {
+ case 0x6204:
+ case 0x6246:
+ break;
+ default:
dev_err(wm831x->dev, "Device is not a WM831x: ID %x\n", ret);
ret = -EINVAL;
goto err;