From patchwork Thu May 6 11:52:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 12242133 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-21.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7ECE2C43461 for ; Thu, 6 May 2021 13:35:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4AF24613EC for ; Thu, 6 May 2021 13:35:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234100AbhEFNg4 (ORCPT ); Thu, 6 May 2021 09:36:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35138 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232992AbhEFNgz (ORCPT ); Thu, 6 May 2021 09:36:55 -0400 Received: from laurent.telenet-ops.be (laurent.telenet-ops.be [IPv6:2a02:1800:110:4::f00:19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 525D9C061574 for ; Thu, 6 May 2021 06:35:56 -0700 (PDT) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed20:f434:20f9:aa9e:b80c]) by laurent.telenet-ops.be with bizsmtp id 1Rbs250020ZPnBx01RbsF0; Thu, 06 May 2021 15:35:55 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1leeAR-003HD6-K4; Thu, 06 May 2021 15:35:51 +0200 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1lecYu-00GzOY-JF; Thu, 06 May 2021 13:53:00 +0200 From: Geert Uytterhoeven To: Mark Brown , Rob Herring , Serge Semin , Gareth Williams Cc: linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH] dt-bindings: spi: dw-apb-ssi: Integrate Renesas RZ/N1 SPI controller Date: Thu, 6 May 2021 13:52:59 +0200 Message-Id: X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Originally, the Renesas RZ/N1 SPI Controller DT bindings were not integrated in the main DT bindings for the Synopsys DesignWare Synchronous Serial Interface, but in its own file, as the RZ/N1 controller has additional registers for software CS control and DMA. As so far DMA is not supported on RZ/N1, and json-schema can handle any possible differences fine, integrate the RZ/N1 compatible values in the main DT bindings for the Synopsys DW SSI. Signed-off-by: Geert Uytterhoeven Reviewed-by: Rob Herring --- There are no upstream users of this binding, but it validates the following (modified) example taken from the RZ/N1 BSP[1] fine: spi0: spi@50005000 { compatible = "renesas,r9a06g032-spi", "renesas,rzn1-spi"; reg = <0x50005000 0x400>; interrupts = ; clock-names = "ssi_clk", "pclk"; clocks = <&sysctrl R9A06G032_CLK_SPI0>, <&sysctrl R9A06G032_HCLK_SPI0>; #address-cells = <1>; #size-cells = <0>; spi-max-frequency = <12500000>; num-cs = <4>; }; [1] https://github.com/renesas-rz/rzn1_linux/blob/rzn1-stable-v4.19/arch/arm/boot/dts/rzn1.dtsi --- .../devicetree/bindings/spi/renesas,rzn1-spi.txt | 11 ----------- .../devicetree/bindings/spi/snps,dw-apb-ssi.yaml | 6 ++++++ 2 files changed, 6 insertions(+), 11 deletions(-) delete mode 100644 Documentation/devicetree/bindings/spi/renesas,rzn1-spi.txt diff --git a/Documentation/devicetree/bindings/spi/renesas,rzn1-spi.txt b/Documentation/devicetree/bindings/spi/renesas,rzn1-spi.txt deleted file mode 100644 index fb1a6728638d3e2f..0000000000000000 --- a/Documentation/devicetree/bindings/spi/renesas,rzn1-spi.txt +++ /dev/null @@ -1,11 +0,0 @@ -Renesas RZ/N1 SPI Controller - -This controller is based on the Synopsys DW Synchronous Serial Interface and -inherits all properties defined in snps,dw-apb-ssi.txt except for the -compatible property. - -Required properties: -- compatible : The device specific string followed by the generic RZ/N1 string. - Therefore it must be one of: - "renesas,r9a06g032-spi", "renesas,rzn1-spi" - "renesas,r9a06g033-spi", "renesas,rzn1-spi" diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml index 4825157cd92e8262..ca91201a99269750 100644 --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml @@ -67,6 +67,12 @@ properties: const: baikal,bt1-sys-ssi - description: Canaan Kendryte K210 SoS SPI Controller const: canaan,k210-spi + - description: Renesas RZ/N1 SPI Controller + items: + - enum: + - renesas,r9a06g032-spi # RZ/N1D + - renesas,r9a06g033-spi # RZ/N1S + - const: renesas,rzn1-spi # RZ/N1 reg: minItems: 1