From b93cef556162b0f33399bfe5f307c54f51554e09 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 2 Dec 2010 16:25:43 +0000 Subject: [PATCH] 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 Cc: stable@kernel.org Signed-off-by: Samuel Ortiz --- drivers/mfd/wm831x-core.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) 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; -- GitLab