Hi Marek, On 19. 3. 21. 오후 6:01, Marek Szyprowski wrote: > Force all Exynos buses to safe operation points before doing the system > reboot operation. There are board on which some aggressive power saving > operation points are behind the capabilities of the bootloader to properly > reset the hardware and boot the board. This way one can avoid board crash > early after reboot. > > This fixes reboot issue on OdroidU3 board both with eMMC and SD boot. > > Reported-by: Markus Reichl <m.reichl@xxxxxxxxxxxxx> > Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> > --- > This is an alternative to https://patchwork.kernel.org/patch/10781433/ > limited only to Exynos-bus driver. > --- > drivers/devfreq/exynos-bus.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c > index c25658b26598..486cc5b422f1 100644 > --- a/drivers/devfreq/exynos-bus.c > +++ b/drivers/devfreq/exynos-bus.c > @@ -514,6 +514,13 @@ static int exynos_bus_probe(struct platform_device *pdev) > return ret; > } > > +static void exynos_bus_shutdown(struct platform_device *pdev) > +{ > + struct exynos_bus *bus = dev_get_drvdata(&pdev->dev); > + > + devfreq_suspend_device(bus->devfreq); > +} > + > #ifdef CONFIG_PM_SLEEP > static int exynos_bus_resume(struct device *dev) > { > @@ -556,6 +563,7 @@ MODULE_DEVICE_TABLE(of, exynos_bus_of_match); > > static struct platform_driver exynos_bus_platdrv = { > .probe = exynos_bus_probe, > + .shutdown = exynos_bus_shutdown, > .driver = { > .name = "exynos-bus", > .pm = &exynos_bus_pm, > Actually, I already agreed the previous patch. Also, it looks good to me. Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx> -- Best Regards, Chanwoo Choi Samsung Electronics
