diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-07-25 22:20:29 +0100 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2011-07-28 10:20:48 +0100 |
| commit | 137a6354305455d585fe99fe5e9949acd895b045 (patch) | |
| tree | c4040ba3e9cc2da3c52d4fe703a819a2022c4b92 /drivers/regulator/wm831x-dcdc.c | |
| parent | 54abd335fda86d305845f9e62b4bc0997386eb66 (diff) | |
| download | talos-op-linux-137a6354305455d585fe99fe5e9949acd895b045.tar.gz talos-op-linux-137a6354305455d585fe99fe5e9949acd895b045.zip | |
regulator: Fix WM831x regulator ID lookups for multiple WM831xs
With multiple wm831x devices the device IDs used for the regulators will
not always be contiguous so simply taking the modulus is not sufficient
to look up the ID, we need to reverse the way the ID is generated.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'drivers/regulator/wm831x-dcdc.c')
| -rw-r--r-- | drivers/regulator/wm831x-dcdc.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c index a0982e809851..0c7a9d5047f4 100644 --- a/drivers/regulator/wm831x-dcdc.c +++ b/drivers/regulator/wm831x-dcdc.c @@ -504,11 +504,17 @@ static __devinit int wm831x_buckv_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); struct wm831x_pdata *pdata = wm831x->dev->platform_data; - int id = pdev->id % ARRAY_SIZE(pdata->dcdc); + int id; struct wm831x_dcdc *dcdc; struct resource *res; int ret, irq; + if (pdata && pdata->wm831x_num) + id = (pdata->wm831x_num * 10) + 1; + else + id = 0; + id = pdev->id - id; + dev_dbg(&pdev->dev, "Probing DCDC%d\n", id + 1); if (pdata == NULL || pdata->dcdc[id] == NULL) @@ -709,11 +715,17 @@ static __devinit int wm831x_buckp_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); struct wm831x_pdata *pdata = wm831x->dev->platform_data; - int id = pdev->id % ARRAY_SIZE(pdata->dcdc); + int id; struct wm831x_dcdc *dcdc; struct resource *res; int ret, irq; + if (pdata && pdata->wm831x_num) + id = (pdata->wm831x_num * 10) + 1; + else + id = 0; + id = pdev->id - id; + dev_dbg(&pdev->dev, "Probing DCDC%d\n", id + 1); if (pdata == NULL || pdata->dcdc[id] == NULL) |
