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[20/37] dt-bindings: clock: renesas,rzg2l-cpg: document RZ/G3S SoC

Message ID 20230912045157.177966-21-claudiu.beznea.uj@bp.renesas.com
State New
Headers show
Series [01/37] dt-bindings: serial: renesas,scif: document r9a08g045 support | expand

Commit Message

Claudiu Sept. 12, 2023, 4:51 a.m. UTC 
From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

Add documentation for RZ/G3S CPG. RZ/G3S CPG module is almost identical
with the one available in RZ/G2{L, UL} the exception being some core
clocks as follows:
- SD clock is composed by a mux and a divider and the divider
  has some limitation (div = 1 cannot be set if mux rate is 800MHz).
- there are 3 SD clocks
- OCTA and TSU clocks are specific to RZ/G3S
- PLL1/4/6 are specific to RZ/G3S with its own computation formula
Even with this RZ/G3S could use the same bindings as RZ/G2L.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
---
 Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml | 1 +
 1 file changed, 1 insertion(+)

Comments

Geert Uytterhoeven Sept. 15, 2023, 11:58 a.m. UTC | #1 
On Tue, Sep 12, 2023 at 6:52 AM Claudiu <claudiu.beznea@tuxon.dev> wrote:
> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
>
> Add documentation for RZ/G3S CPG. RZ/G3S CPG module is almost identical
> with the one available in RZ/G2{L, UL} the exception being some core
> clocks as follows:
> - SD clock is composed by a mux and a divider and the divider
>   has some limitation (div = 1 cannot be set if mux rate is 800MHz).
> - there are 3 SD clocks
> - OCTA and TSU clocks are specific to RZ/G3S
> - PLL1/4/6 are specific to RZ/G3S with its own computation formula
> Even with this RZ/G3S could use the same bindings as RZ/G2L.
>
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@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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Patch

diff --git a/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml b/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
index fe2fba18ae84..80a8c7114c31 100644
--- a/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
+++ b/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
@@ -27,6 +27,7 @@  properties:
       - renesas,r9a07g043-cpg # RZ/G2UL{Type-1,Type-2} and RZ/Five
       - renesas,r9a07g044-cpg # RZ/G2{L,LC}
       - renesas,r9a07g054-cpg # RZ/V2L
+      - renesas,r9a08g045-cpg # RZ/G3S
       - renesas,r9a09g011-cpg # RZ/V2M
 
   reg: