diff options
| author | Samu Onkalo <samu.p.onkalo@nokia.com> | 2010-10-22 07:57:24 -0400 |
|---|---|---|
| committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2010-10-25 14:11:38 -0700 |
| commit | f9deb41f91c41d9d91a24c84a555ec7fe82620da (patch) | |
| tree | c301a8324c3bbc779b752cdf47236575a87a26d2 /drivers/hwmon/lis3lv02d.h | |
| parent | 2a346996626ecbb4269c239e9ff7372a182907e9 (diff) | |
hwmon: lis3: regulator control
Based on pm_runtime control, turn lis3 regulators on and off.
Perform context save and restore on transitions.
Feature is optional and must be enabled in platform data.
Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'drivers/hwmon/lis3lv02d.h')
| -rw-r--r-- | drivers/hwmon/lis3lv02d.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h index 633cf1debc5..c5c063de2f4 100644 --- a/drivers/hwmon/lis3lv02d.h +++ b/drivers/hwmon/lis3lv02d.h @@ -20,6 +20,7 @@ */ #include <linux/platform_device.h> #include <linux/input-polldev.h> +#include <linux/regulator/consumer.h> /* * This driver tries to support the "digital" accelerometer chips from @@ -223,11 +224,17 @@ enum lis3lv02d_click_src_8b { CLICK_IA = 0x40, }; +enum lis3lv02d_reg_state { + LIS3_REG_OFF = 0x00, + LIS3_REG_ON = 0x01, +}; + union axis_conversion { struct { int x, y, z; }; int as_array[3]; + }; struct lis3lv02d { @@ -236,8 +243,13 @@ struct lis3lv02d { int (*init) (struct lis3lv02d *lis3); int (*write) (struct lis3lv02d *lis3, int reg, u8 val); int (*read) (struct lis3lv02d *lis3, int reg, u8 *ret); + int (*reg_ctrl) (struct lis3lv02d *lis3, bool state); int *odrs; /* Supported output data rates */ + u8 *regs; /* Regs to store / restore */ + int regs_size; + u8 *reg_cache; + bool regs_stored; u8 odr_mask; /* ODR bit mask */ u8 whoami; /* indicates measurement precision */ s16 (*read_data) (struct lis3lv02d *lis3, int reg); @@ -250,6 +262,7 @@ struct lis3lv02d { struct input_polled_dev *idev; /* input device */ struct platform_device *pdev; /* platform device */ + struct regulator_bulk_data regulators[2]; atomic_t count; /* interrupt count after last read */ union axis_conversion ac; /* hw -> logical axis */ int mapped_btns[3]; |