On Mon, Jan 29, 2018 at 10:27:14AM -0600, Rob Herring wrote: > On Tue, Jan 16, 2018 at 10:31:28PM +0100, Krzysztof Kozlowski wrote: > > Fix DTC warnings like: > > > > arch/arm/boot/dts/exynos4412-trats2.dtb: Warning (simple_bus_reg): > > Node /soc/syscon-poweroff missing or empty reg/ranges property > > arch/arm/boot/dts/exynos4412-trats2.dtb: Warning (simple_bus_reg): > > Node /soc/syscon-reboot missing or empty reg/ranges property > > > > by moving the syscon poweroff and restart nodes into the PMU (Power > > Management Unit) node. The PMU node is the actual block responsible for > > power management, including typical Exynos on/off/restart procedures. > > Therefore the syscon poweroff and restart nodes logically belong to it. > > > > Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> > > > > --- > > > > Tested on Exynos5420 and Exynos4412. Other tests are welcomed. > > --- > > .../devicetree/bindings/arm/samsung/pmu.txt | 4 +++- > > arch/arm/boot/dts/exynos-syscon-restart.dtsi | 28 ++++++++++------------ > > arch/arm/boot/dts/exynos3250.dtsi | 4 ++-- > > arch/arm/boot/dts/exynos4.dtsi | 5 ++-- > > arch/arm/boot/dts/exynos4412.dtsi | 2 +- > > arch/arm/boot/dts/exynos5.dtsi | 1 - > > arch/arm/boot/dts/exynos5250.dtsi | 3 ++- > > arch/arm/boot/dts/exynos5410.dtsi | 3 ++- > > arch/arm/boot/dts/exynos5420.dtsi | 3 ++- > > 9 files changed, 27 insertions(+), 26 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/arm/samsung/pmu.txt b/Documentation/devicetree/bindings/arm/samsung/pmu.txt > > index 779f5614bcee..405646655ec7 100644 > > --- a/Documentation/devicetree/bindings/arm/samsung/pmu.txt > > +++ b/Documentation/devicetree/bindings/arm/samsung/pmu.txt > > @@ -12,6 +12,8 @@ Properties: > > - "samsung,exynos5433-pmu" - for Exynos5433 SoC. > > - "samsung,exynos7-pmu" - for Exynos7 SoC. > > second value must be always "syscon". > > + If PMU contains optional syscon-poweroff or syscon-restart nodes, > > + then third value must be "simple-mfd". > > I don't think this is right. simple-mfd is only for cases where the > parent has no setup that the child nodes are dependent on. You need the > regmap setup by the parent before the child can be enumerated. The > correct thing to do here is add an of_platform_default_populate() call. I understand, makes sense. I will send a follow-up. Thanks for feedback! Best regards, Krzysztof -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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