From: Geert Uytterhoeven <geert+renesas@glider.be> To: Rob Herring <robh+dt@kernel.org>, Vinod Koul <vkoul@kernel.org>, Magnus Damm <magnus.damm@gmail.com> Cc: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>, Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>, devicetree@vger.kernel.org, dmaengine@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-sh@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Geert Uytterhoeven <geert+renesas@glider.be> Subject: [PATCH 0/3] Remove shdma DT support Date: Fri, 11 Jun 2021 12:18:38 +0200 [thread overview] Message-ID: <cover.1623405675.git.geert+renesas@glider.be> (raw) Hi all, Documentation/devicetree/bindings/dma/renesas,shdma.txt is one of the few^W57% of the DT bindings that haven't been converted to json-schema yet. These bindings were originally intended to cover all SH/R-Mobile SoCs, but the DMA multiplexer node and one DMA controller instance were only ever added to one .dtsi file, for R-Mobile APE6. Still, DMA support for R-Mobile APE6 was never completed to the point that it would actually work, cfr. commit a19788612f51b787 ("dmaengine: sh: Remove R-Mobile APE6 support"). Later, the mux idea was dropped when implementing support for DMA on (very similar) R-Car Gen2, cfr. renesas,rcar-dmac.yaml. Hence this series removes the Renesas SHDMA Device Tree bindings, the SHDMA DMA multiplexer driver, and the corresponding description in the R-Mobile APE6 DTS. I plan to queue [PATCH 3/3] in renesas-devel for v5.15. Thanks for your comments! Geert Uytterhoeven (3): dt-bindings: dmaengine: Remove SHDMA Device Tree bindings dmaengine: sh: Remove unused shdma-of driver ARM: dts: r8a73a4: Remove non-functional DMA support .../devicetree/bindings/dma/renesas,shdma.txt | 84 ------------------- arch/arm/boot/dts/r8a73a4.dtsi | 44 ---------- drivers/dma/sh/Makefile | 2 +- drivers/dma/sh/shdma-of.c | 76 ----------------- 4 files changed, 1 insertion(+), 205 deletions(-) delete mode 100644 Documentation/devicetree/bindings/dma/renesas,shdma.txt delete mode 100644 drivers/dma/sh/shdma-of.c -- 2.25.1 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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From: Geert Uytterhoeven <geert+renesas@glider.be> To: Rob Herring <robh+dt@kernel.org>, Vinod Koul <vkoul@kernel.org>, Magnus Damm <magnus.damm@gmail.com> Cc: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>, Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>, devicetree@vger.kernel.org, dmaengine@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-sh@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Geert Uytterhoeven <geert+renesas@glider.be> Subject: [PATCH 0/3] Remove shdma DT support Date: Fri, 11 Jun 2021 12:18:38 +0200 [thread overview] Message-ID: <cover.1623405675.git.geert+renesas@glider.be> (raw) Hi all, Documentation/devicetree/bindings/dma/renesas,shdma.txt is one of the few^W57% of the DT bindings that haven't been converted to json-schema yet. These bindings were originally intended to cover all SH/R-Mobile SoCs, but the DMA multiplexer node and one DMA controller instance were only ever added to one .dtsi file, for R-Mobile APE6. Still, DMA support for R-Mobile APE6 was never completed to the point that it would actually work, cfr. commit a19788612f51b787 ("dmaengine: sh: Remove R-Mobile APE6 support"). Later, the mux idea was dropped when implementing support for DMA on (very similar) R-Car Gen2, cfr. renesas,rcar-dmac.yaml. Hence this series removes the Renesas SHDMA Device Tree bindings, the SHDMA DMA multiplexer driver, and the corresponding description in the R-Mobile APE6 DTS. I plan to queue [PATCH 3/3] in renesas-devel for v5.15. Thanks for your comments! Geert Uytterhoeven (3): dt-bindings: dmaengine: Remove SHDMA Device Tree bindings dmaengine: sh: Remove unused shdma-of driver ARM: dts: r8a73a4: Remove non-functional DMA support .../devicetree/bindings/dma/renesas,shdma.txt | 84 ------------------- arch/arm/boot/dts/r8a73a4.dtsi | 44 ---------- drivers/dma/sh/Makefile | 2 +- drivers/dma/sh/shdma-of.c | 76 ----------------- 4 files changed, 1 insertion(+), 205 deletions(-) delete mode 100644 Documentation/devicetree/bindings/dma/renesas,shdma.txt delete mode 100644 drivers/dma/sh/shdma-of.c -- 2.25.1 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-06-11 10:18 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-11 10:18 Geert Uytterhoeven [this message] 2021-06-11 10:18 ` [PATCH 0/3] Remove shdma DT support Geert Uytterhoeven 2021-06-16 10:38 ` Vinod Koul 2021-06-16 10:38 ` Vinod Koul 2021-06-16 10:42 ` John Paul Adrian Glaubitz 2021-06-16 10:42 ` John Paul Adrian Glaubitz 2021-06-16 11:18 ` Geert Uytterhoeven 2021-06-16 11:18 ` Geert Uytterhoeven
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