Thread (56 messages) flat view 56 messages, 8 authors, 2014-02-18

[PATCH 23/27] clocksource: sh_cmt: Add DT support

From: geert@linux-m68k.org (Geert Uytterhoeven)
Date: 2014-02-14 09:19:07
Also in: linux-sh, lkml

On Fri, Feb 14, 2014 at 2:00 AM, Laurent Pinchart
[off-list ref] wrote:
quoted hunk ↗ jump to hunk
+++ b/Documentation/devicetree/bindings/timer/renesas,cmt.txt
@@ -0,0 +1,75 @@
+* Renesas R-Car Compare Match Timer (CMT)
+
+The CMT is a multi-channel 16/32/48-bit timer/counter with configurable clock
16-bit is mentioned here ...
+inputs and programmable compare match.
+
+Channels share hadware resources but their counter and compare match value are
hardware
+independent. A particular CMT instance can implement only a subset of the
+channels supported by the CMT model. Channels indices start from 0 and are
Channel indices
+consecutive.
+
+Required Properties:
+
+  - compatible: must contain one of the following.
... why not add "renesas,cmt-16" here (and one extra line in the actual driver),
while you're at it?
+    - "renesas,cmt-32" for the 32-bit CMT
+               (CMT0 on sh7372, sh73a0 and r8a7740)
+    - "renesas,cmt-32-fast" for the 32-bit CMT with fast clock support
+               (CMT[234] on sh7372, sh73a0 and r8a7740)
+    - "renasas,cmt-48" for the 48-bit CMT
+               (CMT1 on sh7372, sh73a0 and r8a7740)
+    - "renesas,cmt-48-gen2" for the second generation 48-bit CMT
+               (CMT[01] on r8a73a4, r8a7790 and r8a7791)
Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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