From patchwork Fri Jul 1 19:22:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 12903642 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 110BCC433EF for ; Fri, 1 Jul 2022 19:24:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231345AbiGATYE (ORCPT ); Fri, 1 Jul 2022 15:24:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37020 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229737AbiGATYD (ORCPT ); Fri, 1 Jul 2022 15:24:03 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0216B13FA4; Fri, 1 Jul 2022 12:24:03 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 68B5CCE34E4; Fri, 1 Jul 2022 19:24:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 518B6C385A2; Fri, 1 Jul 2022 19:23:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1656703439; bh=5IRTSJGvFO4OHAMn+9sgGglU08Ime9shNTeY7wLOS4w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HrIL0NFFH8GvPv14X6eBnhKCVhPnGfzzX07lePmAewtmHaPeitZxlRu5IOvEN8SlI 7G4EMoPHK8/OJfdGHElOOxvxKtHEGBTh//armumSOFz9SgygpEPyYZyqI3WB/e7umc AAIAZGIRKQ2ob/9ffk+5nMiI1uo9wHVqrT5J0L2sEEGf1q+qs3x0O8h7KlkxhudyOh xrIjmbssGpN0IuOXCgIgIzdSs3GD8enEK0Fj8RMS0uHS0tuu0OEkdYsa+XsIJHziFr 94Tt4K0kSGITB4vKyoCbTjhgRa3Lnz3LfdtzLexUetgtpQS8PsXArIyYWSE7rBcfEz Fb1GAc9SDJGTg== From: Conor Dooley To: David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Thierry Reding , Sam Ravnborg , Eugeniy Paltsev , Vinod Koul , Liam Girdwood , Mark Brown , Serge Semin , Daniel Lezcano , Palmer Dabbelt , Palmer Dabbelt Cc: Paul Walmsley , Albert Ou , Conor Dooley , Masahiro Yamada , Damien Le Moal , Geert Uytterhoeven , Niklas Cassel , Dillon Min , Jose Abreu , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, alsa-devel@alsa-project.org, linux-riscv@lists.infradead.org Subject: [PATCH v4 04/14] dt-bindings: dma: dw-axi-dmac: extend the number of interrupts Date: Fri, 1 Jul 2022 20:22:50 +0100 Message-Id: <20220701192300.2293643-5-conor@kernel.org> X-Mailer: git-send-email 2.37.0 In-Reply-To: <20220701192300.2293643-1-conor@kernel.org> References: <20220701192300.2293643-1-conor@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org From: Conor Dooley The Canaan k210 apparently has a Sysnopsys Designware AXI DMA controller, but according to the documentation & devicetree it has 6 interrupts rather than the standard one. Support the 6 interrupt configuration by unconditionally extending the binding to a maximum of 8 per-channel interrupts thereby matching the number of possible channels. Link: https://canaan-creative.com/wp-content/uploads/2020/03/kendryte_standalone_programming_guide_20190311144158_en.pdf #Page 51 Reviewed-by: Serge Semin Signed-off-by: Conor Dooley --- .../devicetree/bindings/dma/snps,dw-axi-dmac.yaml | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml index 4324a94b26b2..98c2ab18d04f 100644 --- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml +++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml @@ -34,7 +34,12 @@ properties: - const: axidma_apb_regs interrupts: - maxItems: 1 + description: | + If the IP-core synthesis parameter DMAX_INTR_IO_TYPE is set to 1, this + will be per-channel interrupts. Otherwise, this is a single combined IRQ + for all channels. + minItems: 1 + maxItems: 8 clocks: items: