Hi, On Fri, Apr 25, 2014 at 1:27 PM, Tushar Behera <tushar.behera@xxxxxxxxxx> wrote: > On 04/14/2014 08:07 PM, Sylwester Nawrocki wrote: >> On 08/04/14 16:36, Vivek Gautam wrote: >>> diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt >>> index 28f9edb..6d99ba9 100644 >>> --- a/Documentation/devicetree/bindings/phy/samsung-phy.txt >>> +++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt >>> @@ -74,3 +74,45 @@ phy-consumer@12340000 { >>> >>> Refer to DT bindings documentation of particular PHY consumer devices for more >>> information about required PHYs and the way of specification. >>> + >>> +Samsung Exynos5 SoC series USB DRD PHY controller >>> +-------------------------------------------------- >>> + >>> +Required properties: >>> +- compatible : Should be set to one of the following supported values: >>> + - "samsung,exynos5250-usbdrd-phy" - for exynos5250 SoC, >>> + - "samsung,exynos5420-usbdrd-phy" - for exynos5420 SoC. >>> +- reg : Register offset and length of USB DRD PHY register set; >>> +- clocks: Clock IDs array as required by the controller >>> +- clock-names: names of clocks correseponding to IDs in the clock property; >>> + Required clocks: >>> + - phy: main PHY clock (same as USB DRD controller i.e. DWC3 IP clock), >>> + used for register access. >>> + - ref: PHY's reference clock (usually crystal clock), associated by >>> + phy name, used to determine bit values for clock settings >>> + register. >>> + Additional clock required for Exynos5420: >>> + - usb30_sclk_100m: Additional special clock used for PHY operation >>> + depicted as 'sclk_usbphy30' in CMU of Exynos5420. >>> +- samsung,syscon-phandle: phandle for syscon interface, which is used to >>> + control pmu registers for power isolation. >> >> Why to append "-phandle" to the property's name ? If this is for PMU >> perhaps make it more explicit and name it: samsung,pmu-syscon or >> samsung,pmureg ? >> > > There are already a couple of nodes (watchdog and sata) using > samsung,syscon-phandle. IMHO, we should keep only property string for > syscon node. Either we keep syscon-phandle here or change sata/watchdog > driver to use the modified property name. IMHO samsung,pmu-syscon make more sense rather than appending a '-phandle' to the property name. This is a 'phandle' and that is in fact understood, isn't it ? We can change in the watchdog, sata drivers to use use the modified name. I can send a patch for the same if we are OK with this, so that we maintain the consistency in the device tree. -- Best Regards Vivek Gautam Samsung R&D Institute, Bangalore India -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html