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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-01-04 18:24:01 +0100 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2010-03-03 15:49:23 +0100 |
| commit | 75c8ac22e4b8ebea8169a090e64d034a96758644 (patch) | |
| tree | 0ea6c68768c8b1c8c15787c9cca078347e4d71e2 /drivers/regulator/wm8350-regulator.c | |
| parent | regulator: Allow regulators to specify the time taken to ramp on enable (diff) | |
| download | linux-75c8ac22e4b8ebea8169a090e64d034a96758644.tar.xz linux-75c8ac22e4b8ebea8169a090e64d034a96758644.zip | |
regulator: Implement enable_time() for WM835x ISINKs
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/wm8350-regulator.c')
| -rw-r--r-- | drivers/regulator/wm8350-regulator.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index e7b89e704af6..94227dd6ba7b 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -290,6 +290,51 @@ static int wm8350_isink_is_enabled(struct regulator_dev *rdev) return -EINVAL; } +static int wm8350_isink_enable_time(struct regulator_dev *rdev) +{ + struct wm8350 *wm8350 = rdev_get_drvdata(rdev); + int isink = rdev_get_id(rdev); + int reg; + + switch (isink) { + case WM8350_ISINK_A: + reg = wm8350_reg_read(wm8350, WM8350_CSA_FLASH_CONTROL); + break; + case WM8350_ISINK_B: + reg = wm8350_reg_read(wm8350, WM8350_CSB_FLASH_CONTROL); + break; + default: + return -EINVAL; + } + + if (reg & WM8350_CS1_FLASH_MODE) { + switch (reg & WM8350_CS1_ON_RAMP_MASK) { + case 0: + return 0; + case 1: + return 1950; + case 2: + return 3910; + case 3: + return 7800; + } + } else { + switch (reg & WM8350_CS1_ON_RAMP_MASK) { + case 0: + return 0; + case 1: + return 250000; + case 2: + return 500000; + case 3: + return 1000000; + } + } + + return -EINVAL; +} + + int wm8350_isink_set_flash(struct wm8350 *wm8350, int isink, u16 mode, u16 trigger, u16 duration, u16 on_ramp, u16 off_ramp, u16 drive) @@ -1221,6 +1266,7 @@ static struct regulator_ops wm8350_isink_ops = { .enable = wm8350_isink_enable, .disable = wm8350_isink_disable, .is_enabled = wm8350_isink_is_enabled, + .enable_time = wm8350_isink_enable_time, }; static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = { |