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mfd: Support additional parent IDs for wm831x

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

Signed-off-by: Mark Brown <[email protected]>
Cc: [email protected]
Signed-off-by: Samuel Ortiz <[email protected]>
This commit is contained in:
Mark Brown 2010-12-02 16:25:43 +00:00 • committed by Samuel Ortiz
commit b93cef5561
1 changed files with 5 additions and 1 deletions
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6
drivers/mfd/wm831x-core.c
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@ -1455,7 +1455,11 @@ int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
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;