On Thursday 01 October 2015 13:39:28 Alim Akhtar wrote: > From: Seungwon Jeon <essuuj@xxxxxxxxx> > > This adds Exynos Universal Flash Storage (UFS) Host Controller DT bindings. > > Signed-off-by: Seungwon Jeon <essuuj@xxxxxxxxx> > Signed-off-by: Alim Akhtar <alim.akhtar@xxxxxxxxxxx> > --- > .../devicetree/bindings/ufs/ufs-exynos.txt | 93 ++++++++++++++++++++ > 1 file changed, 93 insertions(+) > create mode 100644 Documentation/devicetree/bindings/ufs/ufs-exynos.txt > > diff --git a/Documentation/devicetree/bindings/ufs/ufs-exynos.txt b/Documentation/devicetree/bindings/ufs/ufs-exynos.txt > new file mode 100644 > index 0000000..00df72e > --- /dev/null > +++ b/Documentation/devicetree/bindings/ufs/ufs-exynos.txt > @@ -0,0 +1,93 @@ > +* Exynos Universal Flash Storage (UFS) Host Controller > + > +UFSHC nodes are defined to describe on-chip UFS host controllers. > +Each UFS controller instance should have its own node. > + > +Required properties: > +- compatible : compatible name, contains "samsung,exynos7-ufs" > +- interrupts : <interrupt mapping for UFS host controller IRQ> > +- reg : <registers mapping> This needs a list of all the register ranges, which order they are in and what the respective strings must be. > +- clocks : List of phandle and clock specifier pairs > +- clock-names : List of clock input name strings sorted in the same > + order as the clocks property. You need to list the names you require here. Also the 'clock specifier' includes the phandle, it's not a pair but just a list of specifiers. > +- ufs,pwr-attr-mode : specifies mode value for power mode change > +- ufs,pwr-attr-lane : specifies lane count value for power mode change > +- ufs,pwr-attr-gear : specifies gear count value for power mode change > +- ufs,pwr-attr-hs-series : specifies HS rate series for power mode change > +- ufs,pwr-local-l2-timer : specifies array of local UNIPRO L2 timer values > + <FC0ProtectionTimeOutVal,TC0ReplayTimeOutVal, AFC0ReqTimeOutVal> > +- ufs,pwr-remote-l2-timer : specifies array of remote UNIPRO L2 timer values > + <FC0ProtectionTimeOutVal,TC0ReplayTimeOutVal, AFC0ReqTimeOutVal> > +- ufs-rx-adv-fine-gran-sup_en : specifies support of fine granularity of MPHY, > + this is a boolean property. > +- ufs-rx-adv-fine-gran-step : specifies granularity steps of MPHY > +- ufs-rx-adv-min-activate-time-cap : specifies rx advanced minimum activate time of MPHY > +- ufs-pa-granularity : specifies Granularity for PA_TActivate and PA_Hibern8Time > +- ufs-pa-tacctivate : specifies time wake-up remote M-RX > +- ufs-pa-hibern8time : specifies minimum time to wait in HIBERN8 state These all require a specification of what the allowed values are and/or the units for the numbers. > + > + clocks = <&core 0>, <&ref 0>, <&iface 0>; > + clock-names = "core_clk", "ref_clk", "iface_clk"; Better rename them to "core", "ref" and "iface", no point requiring to spell out "clk" here. > + ufs,pwr-attr-mode = "FAST"; A string is rather unusual here, what are the allowed values? Could you use a boolean property instead? > + ufs,pwr-attr-lane = /bits/ 8 <2>; > + ufs,pwr-attr-gear = /bits/ 8 <2>; Why the "/bits/ 8" ? Arnd -- 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
