diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-02-25 01:55:37 -0800 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2010-03-03 14:49:30 +0000 |
| commit | 1ad02bbce64e5226b0582af85df4e481e2f6b7b9 (patch) | |
| tree | 9dd0dd69470f22cf71d157954452c7619e248672 | |
| parent | 598b3578ab9ee8e3eef322128485719668d8b93b (diff) | |
Regulators: wm8400 - cleanup platform driver data handling
On Wed, Feb 24, 2010 at 08:40:56PM +0000, Mark Brown wrote:
> On Wed, Feb 24, 2010 at 11:21:26AM -0800, Dmitry Torokhov wrote:
> > On Wed, Feb 24, 2010 at 07:14:03PM +0000, Mark Brown wrote:
>
> > > This doesn't help unless you also provide a way for users to obtain a
> > > struct wm8400.
>
> > Why would they need it? Only code that creates instances of wm8400 needs
> > to know the definition of the sturcture, the rest can simply pass the
> > pointer around.
>
> > I guess there is disconnect between us and I do not see any users of
> > wm8400_register_regulator() in linux-next... Is there another tree I
> > could peek at?
>
> There are no users in mainline. This would be called by board specific
> code from the init callback of the wm8400 - you'd need to pass that
> callback the struct wm8400.
>
> In any case, this is clearly an unrelated change to whatever else you
> were doing to the driver so should be split off into a separate patch,
> but if this is being changed at all then it'd be much more sensible to
> change it to use a more modern pattern which completely removes the
> wm8400_register_regulator() function and just uses platform data.
Fair enough, I removed the offending part, updated patch below.
--
Dmitry
regulator: wm8400 - cleanup platform driver data handling
Driver data set by platform_set_drvdata() is for private use of
the driver currently bound to teh device and not for use by parent,
subsystem and anyone else.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
| -rw-r--r-- | drivers/regulator/wm8400-regulator.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c index d9a2c988c6e..924c7eb29ee 100644 --- a/drivers/regulator/wm8400-regulator.c +++ b/drivers/regulator/wm8400-regulator.c @@ -317,14 +317,17 @@ static struct regulator_desc regulators[] = { static int __devinit wm8400_regulator_probe(struct platform_device *pdev) { + struct wm8400 *wm8400 = container_of(pdev, struct wm8400, regulators[pdev->id]); struct regulator_dev *rdev; rdev = regulator_register(®ulators[pdev->id], &pdev->dev, - pdev->dev.platform_data, dev_get_drvdata(&pdev->dev)); + pdev->dev.platform_data, wm8400); if (IS_ERR(rdev)) return PTR_ERR(rdev); + platform_set_drvdata(pdev, rdev); + return 0; } @@ -332,6 +335,7 @@ static int __devexit wm8400_regulator_remove(struct platform_device *pdev) { struct regulator_dev *rdev = platform_get_drvdata(pdev); + platform_set_drvdata(pdev, NULL); regulator_unregister(rdev); return 0; @@ -370,7 +374,6 @@ int wm8400_register_regulator(struct device *dev, int reg, wm8400->regulators[reg].id = reg; wm8400->regulators[reg].dev.parent = dev; wm8400->regulators[reg].dev.platform_data = initdata; - dev_set_drvdata(&wm8400->regulators[reg].dev, wm8400); return platform_device_register(&wm8400->regulators[reg]); } |