On Sun, Aug 30, 2020 at 02:57:41PM +0200, Hans de Goede wrote: > In the not-enabled -> enabled path pwm_lpss_apply() needs to get a > runtime-pm reference; and then on any errors it needs to release it > again. > > This leads to somewhat hard to read code. This commit introduces a new > pwm_lpss_prepare_enable() helper and moves all the steps necessary for > the not-enabled -> enabled transition there, so that we can error check > the entire transition in a single place and only have one pm_runtime_put() > on failure call site. > > While working on this I noticed that the enabled -> enabled (update > settings) path was quite similar, so I've added an enable parameter to > the new pwm_lpss_prepare_enable() helper, which allows using it in that > path too. > > Suggested-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> > --- > drivers/pwm/pwm-lpss.c | 45 ++++++++++++++++++++++++------------------ > 1 file changed, 26 insertions(+), 19 deletions(-) Acked-by: Thierry Reding <thierry.reding@xxxxxxxxx>
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