On Thu, 26 Jan 2017, Marek Szyprowski wrote: > Convert exisitng lpass-suspend/resume callbacks into runtime PM callbacks. > This way Exynos LPASS driver will be ready for use with power domains > enabled. LPASS will be runtime resumed/suspended as a result of its child > devices runtime PM transitions. > > Signed-off-by: Marek Szyprowski <[email protected]> > Acked-by: Krzysztof Kozlowski <[email protected]> > --- > drivers/mfd/exynos-lpass.c | 14 +++++++++++--- > 1 file changed, 11 insertions(+), 3 deletions(-)
For my own reference: Acked-for-MFD-by: Lee Jones <[email protected]> > diff --git a/drivers/mfd/exynos-lpass.c b/drivers/mfd/exynos-lpass.c > index 9dbbedad916f..6d735e22acda 100644 > --- a/drivers/mfd/exynos-lpass.c > +++ b/drivers/mfd/exynos-lpass.c > @@ -22,6 +22,7 @@ > #include <linux/of.h> > #include <linux/of_platform.h> > #include <linux/platform_device.h> > +#include <linux/pm_runtime.h> > #include <linux/regmap.h> > #include <linux/types.h> > > @@ -132,6 +133,8 @@ static int exynos_lpass_probe(struct platform_device > *pdev) > } > > platform_set_drvdata(pdev, lpass); > + pm_runtime_set_active(dev); > + pm_runtime_enable(dev); > exynos_lpass_enable(lpass); > > return of_platform_populate(dev->of_node, NULL, NULL, dev); > @@ -141,7 +144,9 @@ static int exynos_lpass_remove(struct platform_device > *pdev) > { > struct exynos_lpass *lpass = platform_get_drvdata(pdev); > > - exynos_lpass_disable(lpass); > + pm_runtime_disable(&pdev->dev); > + if (!pm_runtime_status_suspended(&pdev->dev)) > + exynos_lpass_disable(lpass); > regmap_exit(lpass->top); > > return 0; > @@ -165,8 +170,11 @@ static int __maybe_unused exynos_lpass_resume(struct > device *dev) > return 0; > } > > -static SIMPLE_DEV_PM_OPS(lpass_pm_ops, exynos_lpass_suspend, > - exynos_lpass_resume); > +static const struct dev_pm_ops lpass_pm_ops = { > + SET_RUNTIME_PM_OPS(exynos_lpass_suspend, exynos_lpass_resume, NULL) > + SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, > + pm_runtime_force_resume) > +}; > > static const struct of_device_id exynos_lpass_of_match[] = { > { .compatible = "samsung,exynos5433-lpass" }, -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
