diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-05-07 09:03:22 (GMT) |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-05-07 09:32:08 (GMT) |
| commit | cc7a727941193e3e59be2e9f6522eb78bc7ee909 (patch) | |
| tree | 3b7813120db496fce4c90f0c68e0795335233e31 | |
| parent | b7b142d9fc056e98e6fdef82dca3e87067517340 (diff) | |
| download | linux-cc7a727941193e3e59be2e9f6522eb78bc7ee909.tar.xz | |
mfd: Read CUST_ID from the wm8994 device
Read CUST_ID from the device and log it for diagnostics.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| -rw-r--r-- | drivers/mfd/wm8994-core.c | 7 | ||||
| -rw-r--r-- | include/linux/mfd/wm8994/core.h | 1 | ||||
| -rw-r--r-- | include/linux/mfd/wm8994/registers.h | 3 |
3 files changed, 8 insertions, 3 deletions
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index 9d7ca1e..60e6175 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -500,7 +500,8 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq) ret); goto err_enable; } - wm8994->revision = ret; + wm8994->revision = ret & WM8994_CHIP_REV_MASK; + wm8994->cust_id = (ret & WM8994_CUST_ID_MASK) >> WM8994_CUST_ID_SHIFT; switch (wm8994->type) { case WM8994: @@ -553,8 +554,8 @@ static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq) break; } - dev_info(wm8994->dev, "%s revision %c\n", devname, - 'A' + wm8994->revision); + dev_info(wm8994->dev, "%s revision %c CUST_ID %02x\n", devname, + 'A' + wm8994->revision, wm8994->cust_id); switch (wm8994->type) { case WM1811: diff --git a/include/linux/mfd/wm8994/core.h b/include/linux/mfd/wm8994/core.h index 9eff2a3..d41bc7b 100644 --- a/include/linux/mfd/wm8994/core.h +++ b/include/linux/mfd/wm8994/core.h @@ -57,6 +57,7 @@ struct wm8994 { enum wm8994_type type; int revision; + int cust_id; struct device *dev; struct regmap *regmap; diff --git a/include/linux/mfd/wm8994/registers.h b/include/linux/mfd/wm8994/registers.h index 86e6a03..0535489 100644 --- a/include/linux/mfd/wm8994/registers.h +++ b/include/linux/mfd/wm8994/registers.h @@ -2212,6 +2212,9 @@ /* * R256 (0x100) - Chip Revision */ +#define WM8994_CUST_ID_MASK 0xFF00 /* CUST_ID - [15:8] */ +#define WM8994_CUST_ID_SHIFT 8 /* CUST_ID - [15:8] */ +#define WM8994_CUST_ID_WIDTH 8 /* CUST_ID - [15:8] */ #define WM8994_CHIP_REV_MASK 0x000F /* CHIP_REV - [3:0] */ #define WM8994_CHIP_REV_SHIFT 0 /* CHIP_REV - [3:0] */ #define WM8994_CHIP_REV_WIDTH 4 /* CHIP_REV - [3:0] */ |