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| author | Takashi Iwai <tiwai@suse.de> | 2012-08-20 21:26:04 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-08-20 21:26:04 +0200 |
| commit | f0b433e9f362e0b7f0ce7d1489dd7feba068605d (patch) | |
| tree | d4bfd9489cf4a96a55d83af20919f477a846d585 /drivers/mfd/wm831x-otp.c | |
| parent | Merge branch 'topic/ca0132-fix' into for-linus (diff) | |
| parent | ASoC: wm9712: Fix inverted capture volume (diff) | |
| download | linux-f0b433e9f362e0b7f0ce7d1489dd7feba068605d.tar.xz linux-f0b433e9f362e0b7f0ce7d1489dd7feba068605d.zip | |
Merge tag 'asoc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Additional updates for 3.6
A batch more bugfixes, all driver-specific and fairly small and
unremarkable in a global context. The biggest batch are for the newly
added Arizona drivers.
Diffstat (limited to 'drivers/mfd/wm831x-otp.c')
| -rw-r--r-- | drivers/mfd/wm831x-otp.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mfd/wm831x-otp.c b/drivers/mfd/wm831x-otp.c index f742745ff354..b90f3e06b6c9 100644 --- a/drivers/mfd/wm831x-otp.c +++ b/drivers/mfd/wm831x-otp.c @@ -18,6 +18,7 @@ #include <linux/bcd.h> #include <linux/delay.h> #include <linux/mfd/core.h> +#include <linux/random.h> #include <linux/mfd/wm831x/core.h> #include <linux/mfd/wm831x/otp.h> @@ -66,6 +67,7 @@ static DEVICE_ATTR(unique_id, 0444, wm831x_unique_id_show, NULL); int wm831x_otp_init(struct wm831x *wm831x) { + char uuid[WM831X_UNIQUE_ID_LEN]; int ret; ret = device_create_file(wm831x->dev, &dev_attr_unique_id); @@ -73,6 +75,12 @@ int wm831x_otp_init(struct wm831x *wm831x) dev_err(wm831x->dev, "Unique ID attribute not created: %d\n", ret); + ret = wm831x_unique_id_read(wm831x, uuid); + if (ret == 0) + add_device_randomness(uuid, sizeof(uuid)); + else + dev_err(wm831x->dev, "Failed to read UUID: %d\n", ret); + return ret; } |