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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-01-04 17:24:01 +0000
committerLiam Girdwood <lrg@slimlogic.co.uk>2010-03-03 14:49:23 +0000
commit75c8ac22e4b8ebea8169a090e64d034a96758644 (patch)
tree0ea6c68768c8b1c8c15787c9cca078347e4d71e2 /drivers
parent31aae2beeb3d601d556b6a8c39085940ad1e9f42 (diff)
regulator: Implement enable_time() for WM835x ISINKs
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/regulator/wm8350-regulator.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index e7b89e704af..94227dd6ba7 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] = {