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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-07-25 22:20:32 +0100
committerLiam Girdwood <lrg@slimlogic.co.uk>2011-07-28 10:20:49 +0100
commitb47ba9fdd336b318a6a6431e6a4556df99272277 (patch)
treededf6af728b6a2ce5167af53f5032fa74abdbc35 /drivers/regulator
parent24b4315051ef2b9155d23ccbad528daab3b65eb6 (diff)
regulator: Set up GPIO for WM831x VSEL before enabling VSEL mode
If the VSEL is not in use prior to us starting up then we need to make sure we initialise the GPIO before we push the DVS control to being done by the GPIO. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/wm831x-dcdc.c41
1 files changed, 20 insertions, 21 deletions
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 2ee482306784..95249f7a0e39 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -456,27 +456,6 @@ static __devinit void wm831x_buckv_dvs_init(struct wm831x_dcdc *dcdc,
if (!pdata || !pdata->dvs_gpio)
return;
- switch (pdata->dvs_control_src) {
- case 1:
- ctrl = 2 << WM831X_DC1_DVS_SRC_SHIFT;
- break;
- case 2:
- ctrl = 3 << WM831X_DC1_DVS_SRC_SHIFT;
- break;
- default:
- dev_err(wm831x->dev, "Invalid DVS control source %d for %s\n",
- pdata->dvs_control_src, dcdc->name);
- return;
- }
-
- ret = wm831x_set_bits(wm831x, dcdc->base + WM831X_DCDC_DVS_CONTROL,
- WM831X_DC1_DVS_SRC_MASK, ctrl);
- if (ret < 0) {
- dev_err(wm831x->dev, "Failed to set %s DVS source: %d\n",
- dcdc->name, ret);
- return;
- }
-
ret = gpio_request(pdata->dvs_gpio, "DCDC DVS");
if (ret < 0) {
dev_err(wm831x->dev, "Failed to get %s DVS GPIO: %d\n",
@@ -498,6 +477,26 @@ static __devinit void wm831x_buckv_dvs_init(struct wm831x_dcdc *dcdc,
}
dcdc->dvs_gpio = pdata->dvs_gpio;
+
+ switch (pdata->dvs_control_src) {
+ case 1:
+ ctrl = 2 << WM831X_DC1_DVS_SRC_SHIFT;
+ break;
+ case 2:
+ ctrl = 3 << WM831X_DC1_DVS_SRC_SHIFT;
+ break;
+ default:
+ dev_err(wm831x->dev, "Invalid DVS control source %d for %s\n",
+ pdata->dvs_control_src, dcdc->name);
+ return;
+ }
+
+ ret = wm831x_set_bits(wm831x, dcdc->base + WM831X_DCDC_DVS_CONTROL,
+ WM831X_DC1_DVS_SRC_MASK, ctrl);
+ if (ret < 0) {
+ dev_err(wm831x->dev, "Failed to set %s DVS source: %d\n",
+ dcdc->name, ret);
+ }
}
static __devinit int wm831x_buckv_probe(struct platform_device *pdev)