On Thu, Sep 04, 2014 at 09:51:27AM +0300, Laurent Pinchart wrote: > Hi Simon, > > Thank you for the patch. > > On Thursday 04 September 2014 09:55:19 Simon Horman wrote: > > In general Renesas hardware is not documented to the extent > > where the relationship between IP blocks on different SoCs can be assumed > > although they may appear to operate the same way. Furthermore the > > documentation typically does not specify a version for individual > > IP blocks. For these reasons a convention of using the SoC name in place > > of a version and providing SoC-specific compat strings has been adopted. > > > > Although not universally liked this convention is used in the bindings for > > a number of drivers for Renesas hardware. The purpose of this patch is to > > update the Renesas R-Car Compare Match Timer (CMT) driver to follow this > > convention. > > > > Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx> > > Acked-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > > Acked-by: Mark Rutland <mark.rutland@xxxxxxx> > > > > --- > > * I plan to follow up with patches to use these new bindings in the > > dtsi files for the affected SoCs. > > > > v2 > > * Reorder compat entries so more-specific entries and their fallbacks > > are grouped with the fallback entry coming last. > > * Explicitly document fallback > > --- > > .../devicetree/bindings/timer/renesas,cmt.txt | 44 ++++++++++++++++--- > > 1 file changed, 38 insertions(+), 6 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/timer/renesas,cmt.txt > > b/Documentation/devicetree/bindings/timer/renesas,cmt.txt index > > a17418b..7b44f4b 100644 > > --- a/Documentation/devicetree/bindings/timer/renesas,cmt.txt > > +++ b/Documentation/devicetree/bindings/timer/renesas,cmt.txt > > @@ -11,15 +11,47 @@ datasheets. > > > > Required Properties: > > > > - - compatible: must contain one of the following. > > - - "renesas,cmt-32" for the 32-bit CMT > > + - compatible: must contain one or more of the following: > > + - "renesas,cmt-32-r8a7740" for the R8a7740 32-bit CMT > > + (CMT0) > > + - "renesas,cmt-32-sh7372" for the SH7372 32-bit CMT > > + (CMT0) > > + - "renesas,cmt-32-sh73a0" for the SH73a0 32-bit CMT > > + (CMT0) > > + - "renesas,cmt-32" for all 32-bit CMT without fast clock support > > (CMT0 on sh7372, sh73a0 and r8a7740) > > - - "renesas,cmt-32-fast" for the 32-bit CMT with fast clock support > > + This is a fallback for the above renesas,cmt-32-* entries. > > + > > + - "renesas,cmt-32-fast-r8a7740" for the R8A7740 32-bit CMT with fast > > + clock support (CMT[234]) > > + - "renesas,cmt-32-fast-sh7372" for the SH7372 32-bit CMT with fast > > + clock support (CMT[234]) > > + - "renesas,cmt-32-fast-sh73a0" for the SH73A0 32-bit CMT with fast > > + clock support (CMT[234]) > > + - "renesas,cmt-32-fast" for all 32-bit CMT with fast clock support > > (CMT[234] on sh7372, sh73a0 and r8a7740) > > - - "renesas,cmt-48" for the 48-bit CMT > > + This is a fallback for the above renesas,cmt-32-fast-* entries. > > + > > + - "renesas,cmt-48-sh7372" for the SH7372 48-bit CMT > > + (CMT1) > > + - "renesas,cmt-48-sh73a0" for the SH73A0 48-bit CMT > > + (CMT1) > > + - "renesas,cmt-48-r8a7740" for the R8A7740 48-bit CMT > > + (CMT1) > > + - "renesas,cmt-48" for all non-second generation 48-bit CMT > > (CMT1 on sh7372, sh73a0 and r8a7740) > > - - "renesas,cmt-48-gen2" for the second generation 48-bit CMT > > + This is a fallback for the above renesas,cmt-48-* entries. > > + > > + - "renesas,cmt-48-r8a73a4" for the R8A73A4 48-bit CMT > > + (CMT[01]) > > + - "renesas,cmt-48-r8a7790" for the R8A7790 48-bit CMT > > + (CMT[01]) > > + - "renesas,cmt-48-r8a7791" for the R8A7791 48-bit CMT > > + (CMT[01]) > > + - "renesas,cmt-48-gen2" for all second generation 48-bit CMT > > (CMT[01] on r8a73a4, r8a7790 and r8a7791) > > + This is a fallback for the renesas,cmt-48-r8a73a4, > > + renesas,cmt-48-r8a7790 and renesas,cmt-48-gen2 entries. > > If renesas,cmt-48-gen2 is a fallback for renesas,cmt-48-gen2, we'll have an > infinite loop :-) I suppose you meant > > This is a fallback for the renesas,cmt-48-r8a73a4, > renesas,cmt-48-r8a7790 and renesas,cmt-48-r8a7791 entries. Yes, indeed. Thanks :) > With that change, > > Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> -- 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
