Messages in this thread Patch in this message | | | From | Magnus Damm <> | Date | Thu, 18 Jul 2019 20:45:11 +0900 | Subject | [PATCH 5/7] dt-bindings: timer: renesas, cmt: Update R-Car Gen3 CMT1 usage |
| |
From: Magnus Damm <damm+renesas@opensource.se>
The R-Car Gen3 SoCs so far come with a total for 4 on-chip CMT devices: - CMT0 - CMT1 - CMT2 - CMT3
CMT0 includes two rather basic 32-bit timer channels. The rest of the on-chip CMT devices support 48-bit counters and have 8 channels each.
Based on the data sheet information "CMT2/3 are exactly same as CMT1" it seems that CMT2 and CMT3 now use the CMT1 compat string in the DTSI.
Clarify this in the DT binding documentation by describing R-Car Gen3 and RZ/G2 CMT1 as "48-bit CMT devices".
Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Rob Herring <robh@kernel.org> ---
Changes since last version: - Use "devices" for fallback entry - thanks Geert! - Keen to Gen3 so removed out-of-scope Gen2 portions
Documentation/devicetree/bindings/timer/renesas,cmt.txt | 20 +++++++-------- 1 file changed, 10 insertions(+), 10 deletions(-)
--- 0008/Documentation/devicetree/bindings/timer/renesas,cmt.txt +++ work/Documentation/devicetree/bindings/timer/renesas,cmt.txt 2019-07-18 19:24:05.195643742 +0900 @@ -28,9 +28,9 @@ Required Properties: - "renesas,r8a77470-cmt0" for the 32-bit CMT0 device included in r8a77470. - "renesas,r8a77470-cmt1" for the 48-bit CMT1 device included in r8a77470. - "renesas,r8a774a1-cmt0" for the 32-bit CMT0 device included in r8a774a1. - - "renesas,r8a774a1-cmt1" for the 48-bit CMT1 device included in r8a774a1. + - "renesas,r8a774a1-cmt1" for the 48-bit CMT devices included in r8a774a1. - "renesas,r8a774c0-cmt0" for the 32-bit CMT0 device included in r8a774c0. - - "renesas,r8a774c0-cmt1" for the 48-bit CMT1 device included in r8a774c0. + - "renesas,r8a774c0-cmt1" for the 48-bit CMT devices included in r8a774c0. - "renesas,r8a7790-cmt0" for the 32-bit CMT0 device included in r8a7790. - "renesas,r8a7790-cmt1" for the 48-bit CMT1 device included in r8a7790. - "renesas,r8a7791-cmt0" for the 32-bit CMT0 device included in r8a7791. @@ -42,19 +42,19 @@ Required Properties: - "renesas,r8a7794-cmt0" for the 32-bit CMT0 device included in r8a7794. - "renesas,r8a7794-cmt1" for the 48-bit CMT1 device included in r8a7794. - "renesas,r8a7795-cmt0" for the 32-bit CMT0 device included in r8a7795. - - "renesas,r8a7795-cmt1" for the 48-bit CMT1 device included in r8a7795. + - "renesas,r8a7795-cmt1" for the 48-bit CMT devices included in r8a7795. - "renesas,r8a7796-cmt0" for the 32-bit CMT0 device included in r8a7796. - - "renesas,r8a7796-cmt1" for the 48-bit CMT1 device included in r8a7796. + - "renesas,r8a7796-cmt1" for the 48-bit CMT devices included in r8a7796. - "renesas,r8a77965-cmt0" for the 32-bit CMT0 device included in r8a77965. - - "renesas,r8a77965-cmt1" for the 48-bit CMT1 device included in r8a77965. + - "renesas,r8a77965-cmt1" for the 48-bit CMT devices included in r8a77965. - "renesas,r8a77970-cmt0" for the 32-bit CMT0 device included in r8a77970. - - "renesas,r8a77970-cmt1" for the 48-bit CMT1 device included in r8a77970. + - "renesas,r8a77970-cmt1" for the 48-bit CMT devices included in r8a77970. - "renesas,r8a77980-cmt0" for the 32-bit CMT0 device included in r8a77980. - - "renesas,r8a77980-cmt1" for the 48-bit CMT1 device included in r8a77980. + - "renesas,r8a77980-cmt1" for the 48-bit CMT devices included in r8a77980. - "renesas,r8a77990-cmt0" for the 32-bit CMT0 device included in r8a77990. - - "renesas,r8a77990-cmt1" for the 48-bit CMT1 device included in r8a77990. + - "renesas,r8a77990-cmt1" for the 48-bit CMT devices included in r8a77990. - "renesas,r8a77995-cmt0" for the 32-bit CMT0 device included in r8a77995. - - "renesas,r8a77995-cmt1" for the 48-bit CMT1 device included in r8a77995. + - "renesas,r8a77995-cmt1" for the 48-bit CMT devices included in r8a77995. - "renesas,sh73a0-cmt0" for the 32-bit CMT0 device included in sh73a0. - "renesas,sh73a0-cmt1" for the 48-bit CMT1 device included in sh73a0. - "renesas,sh73a0-cmt2" for the 32-bit CMT2 device included in sh73a0. @@ -69,7 +69,7 @@ Required Properties: listed above. - "renesas,rcar-gen3-cmt0" for 32-bit CMT0 devices included in R-Car Gen3 and RZ/G2. - - "renesas,rcar-gen3-cmt1" for 48-bit CMT1 devices included in R-Car Gen3 + - "renesas,rcar-gen3-cmt1" for 48-bit CMT devices included in R-Car Gen3 and RZ/G2. These are fallbacks for R-Car Gen3 and RZ/G2 entries listed above.
| |