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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-12-02 16:25:43 +0000
committerSamuel Ortiz <sameo@linux.intel.com>2010-12-22 12:05:22 +0100
commitb93cef556162b0f33399bfe5f307c54f51554e09 (patch)
treef25fa31e6d24e06f26b319bb767fa795011bfdef /drivers/mfd/wm831x-core.c
parent88aec4f7b67b5889ba5b4beac2d2c1400451c318 (diff)
downloadlwn-b93cef556162b0f33399bfe5f307c54f51554e09.tar.gz
lwn-b93cef556162b0f33399bfe5f307c54f51554e09.zip
mfd: Support additional parent IDs for wm831x
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> Cc: stable@kernel.org Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/wm831x-core.c')
-rw-r--r--drivers/mfd/wm831x-core.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c
index e1a2f4b78529..76cadcf3b1fe 100644
--- a/drivers/mfd/wm831x-core.c
+++ b/drivers/mfd/wm831x-core.c
@@ -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;