On Sat, Oct 24, 2020 at 05:43:46PM +0200, Paweł Chmiel wrote: > This clock must be always enabled to allow access to any registers in > fsys1 CMU. Until proper solution based on runtime PM is applied > (similar to what was done for Exynos5433), mark that clock as critical > so it won't be disabled. > > It was observed on Samsung Galaxy S6 device (based on Exynos7420), where > UFS module is probed before pmic used to power that device. > In this case defer probe was happening and that clock was disabled by > UFS driver, causing whole boot to hang on next CMU access. > > Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@xxxxxxxxx> > --- > drivers/clk/samsung/clk-exynos7.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) Acked-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> Best regards, Krzysztof
