Re: [PATCH] dt-bindings: serial: snps-dw-apb-uart: Simplify DMA-less RZ/N1 rule

[Wolfram Sang <wsa+renesas@sang-engineering.com>]

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> > What about simply dropping r9a06g033 which cannot run Linux (no RAM
> > controller, only 6MB internal RAM) and there hasn't been any upstreaming
> 
> You can run Linux on 6 MiB of RAM, if you try hard ;-)

Whoever tries that hard will have zero problems upstreaming the bindings
then again. I will happily ack them. But it will not happen.

> 
> > effort for other OS in the last 7 years? And making the remaining
> 
> ... which does not mean there are no users.

And these mysterious users will complain about a removed UART binding
while there is not even a clk binding upstream?

> We don't allow "everything". Valid compatible values are checked by
> the normal rules below.

Why don't we use '{}' with all the bindings then? Would simplify so
much. From the watchdog driver:


      - items:
          - enum:
              - renesas,r8a7742-wdt      # RZ/G1H
              - renesas,r8a7743-wdt      # RZ/G1M
              - renesas,r8a7744-wdt      # RZ/G1N
              - renesas,r8a7745-wdt      # RZ/G1E
              - renesas,r8a77470-wdt     # RZ/G1C
              - renesas,r8a7790-wdt      # R-Car H2
              - renesas,r8a7791-wdt      # R-Car M2-W
              - renesas,r8a7792-wdt      # R-Car V2H
              - renesas,r8a7793-wdt      # R-Car M2-N
              - renesas,r8a7794-wdt      # R-Car E2
          - const: renesas,rcar-gen2-wdt # R-Car Gen2 and RZ/G1

      - items:
          - enum:
              - renesas,r8a774a1-wdt     # RZ/G2M
              - renesas,r8a774b1-wdt     # RZ/G2N
              - renesas,r8a774c0-wdt     # RZ/G2E
              - renesas,r8a774e1-wdt     # RZ/G2H
              - renesas,r8a7795-wdt      # R-Car H3
              - renesas,r8a7796-wdt      # R-Car M3-W
              - renesas,r8a77961-wdt     # R-Car M3-W+
              - renesas,r8a77965-wdt     # R-Car M3-N
              - renesas,r8a77970-wdt     # R-Car V3M
              - renesas,r8a77980-wdt     # R-Car V3H
              - renesas,r8a77990-wdt     # R-Car E3
              - renesas,r8a77995-wdt     # R-Car D3
          - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2

      - items:
          - enum:
              - renesas,r8a779a0-wdt     # R-Car V3U
              - renesas,r8a779f0-wdt     # R-Car S4-8
              - renesas,r8a779g0-wdt     # R-Car V4H
              - renesas,r8a779h0-wdt     # R-Car V4M
          - const: renesas,rcar-gen4-wdt # R-Car Gen4



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