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From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	linux-serial@vger.kernel.org, devicetree@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH] dt-bindings: serial: snps-dw-apb-uart: Simplify DMA-less RZ/N1 rule
Date: Thu, 10 Apr 2025 11:37:17 +0200	[thread overview]
Message-ID: <Z_eRTafA9mjDC175@shikoro> (raw)
In-Reply-To: <CAMuHMdV5w_9VpVrJPHy_EtmXoWV9fdBBO_YwhPt2TcX_D4TUxg@mail.gmail.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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  reply	other threads:[~2025-04-10  9:37 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-10  8:00 [PATCH] dt-bindings: serial: snps-dw-apb-uart: Simplify DMA-less RZ/N1 rule Geert Uytterhoeven
2025-04-10  8:33 ` Wolfram Sang
2025-04-10  8:36   ` Geert Uytterhoeven
2025-04-10  9:37     ` Wolfram Sang [this message]
2025-04-10 10:56       ` Geert Uytterhoeven
2025-04-10 20:29         ` Wolfram Sang
2025-04-11 13:38 ` Rob Herring
2025-04-11 15:37   ` Wolfram Sang
2025-04-11 16:16     ` Rob Herring
2025-04-11 19:12       ` Wolfram Sang
2025-04-23 12:10       ` Geert Uytterhoeven

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