From patchwork Wed May 5 09:28:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 12239745 X-Patchwork-Delegate: geert@linux-m68k.org 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 05AF4C43461 for ; Wed, 5 May 2021 11:06:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BE98B613CD for ; Wed, 5 May 2021 11:06:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232462AbhEELG5 (ORCPT ); Wed, 5 May 2021 07:06:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48680 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232343AbhEELG4 (ORCPT ); Wed, 5 May 2021 07:06:56 -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 3CAE5C061761 for ; Wed, 5 May 2021 04:05:58 -0700 (PDT) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed20:ec82:c7ff:285a:d05c]) by laurent.telenet-ops.be with bizsmtp id 0z5s2500R5G7XuW01z5smY; Wed, 05 May 2021 13:05:53 +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 1leFLj-002z5N-L6; Wed, 05 May 2021 13:05:51 +0200 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1leDpP-005XRS-3g; Wed, 05 May 2021 11:28:23 +0200 From: Geert Uytterhoeven To: Ulf Hansson , Rob Herring , Wolfram Sang Cc: linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH] dt-bindings: mmc: renesas,mmcif: Convert to json-schema Date: Wed, 5 May 2021 11:28:22 +0200 Message-Id: <1207254b45a0efa65d9d9e3d951fdabfe5b48101.1620206845.git.geert+renesas@glider.be> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Convert the Renesas Multi Media Card Interface (MMCIF) Device Tree binding documentation to json-schema. Document missing properties. Update the example to match reality. Signed-off-by: Geert Uytterhoeven Reviewed-by: Rob Herring --- .../devicetree/bindings/mmc/renesas,mmcif.txt | 53 ------- .../bindings/mmc/renesas,mmcif.yaml | 136 ++++++++++++++++++ 2 files changed, 136 insertions(+), 53 deletions(-) delete mode 100644 Documentation/devicetree/bindings/mmc/renesas,mmcif.txt create mode 100644 Documentation/devicetree/bindings/mmc/renesas,mmcif.yaml diff --git a/Documentation/devicetree/bindings/mmc/renesas,mmcif.txt b/Documentation/devicetree/bindings/mmc/renesas,mmcif.txt deleted file mode 100644 index 291532ac0446fc71..0000000000000000 --- a/Documentation/devicetree/bindings/mmc/renesas,mmcif.txt +++ /dev/null @@ -1,53 +0,0 @@ -* Renesas Multi Media Card Interface (MMCIF) Controller - -This file documents differences between the core properties in mmc.txt -and the properties used by the MMCIF device. - - -Required properties: - -- compatible: should be "renesas,mmcif-", "renesas,sh-mmcif" as a - fallback. Examples with are: - - "renesas,mmcif-r7s72100" for the MMCIF found in r7s72100 SoCs - - "renesas,mmcif-r8a73a4" for the MMCIF found in r8a73a4 SoCs - - "renesas,mmcif-r8a7740" for the MMCIF found in r8a7740 SoCs - - "renesas,mmcif-r8a7742" for the MMCIF found in r8a7742 SoCs - - "renesas,mmcif-r8a7743" for the MMCIF found in r8a7743 SoCs - - "renesas,mmcif-r8a7744" for the MMCIF found in r8a7744 SoCs - - "renesas,mmcif-r8a7745" for the MMCIF found in r8a7745 SoCs - - "renesas,mmcif-r8a7778" for the MMCIF found in r8a7778 SoCs - - "renesas,mmcif-r8a7790" for the MMCIF found in r8a7790 SoCs - - "renesas,mmcif-r8a7791" for the MMCIF found in r8a7791 SoCs - - "renesas,mmcif-r8a7793" for the MMCIF found in r8a7793 SoCs - - "renesas,mmcif-r8a7794" for the MMCIF found in r8a7794 SoCs - - "renesas,mmcif-sh73a0" for the MMCIF found in sh73a0 SoCs - -- interrupts: Some SoCs have only 1 shared interrupt, while others have either - 2 or 3 individual interrupts (error, int, card detect). Below is the number - of interrupts for each SoC: - 1: r8a73a4, r8a7742, r8a7743, r8a7744, r8a7745, r8a7778, r8a7790, r8a7791, - r8a7793, r8a7794 - 2: r8a7740, sh73a0 - 3: r7s72100 - -- clocks: reference to the functional clock - -- dmas: reference to the DMA channels, one per channel name listed in the - dma-names property. -- dma-names: must contain "tx" for the transmit DMA channel and "rx" for the - receive DMA channel. -- max-frequency: Maximum operating clock frequency, driver uses default clock - frequency if it is not set. - - -Example: R8A7790 (R-Car H2) MMCIF0 - - mmcif0: mmc@ee200000 { - compatible = "renesas,mmcif-r8a7790", "renesas,sh-mmcif"; - reg = <0 0xee200000 0 0x80>; - interrupts = <0 169 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&mstp3_clks R8A7790_CLK_MMCIF0>; - dmas = <&dmac0 0xd1>, <&dmac0 0xd2>; - dma-names = "tx", "rx"; - max-frequency = <97500000>; - }; diff --git a/Documentation/devicetree/bindings/mmc/renesas,mmcif.yaml b/Documentation/devicetree/bindings/mmc/renesas,mmcif.yaml new file mode 100644 index 0000000000000000..a0eb819ccdf5d684 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/renesas,mmcif.yaml @@ -0,0 +1,136 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/renesas,mmcif.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas Multi Media Card Interface (MMCIF) Controller + +maintainers: + - Wolfram Sang + +allOf: + - $ref: "mmc-controller.yaml" + +properties: + compatible: + oneOf: + - items: + - enum: + - renesas,mmcif-r7s72100 # RZ/A1H + - renesas,mmcif-r8a73a4 # R-Mobile APE6 + - renesas,mmcif-r8a7740 # R-Mobile A1 + - renesas,mmcif-r8a7742 # RZ/G1H + - renesas,mmcif-r8a7743 # RZ/G1M + - renesas,mmcif-r8a7744 # RZ/G1N + - renesas,mmcif-r8a7745 # RZ/G1E + - renesas,mmcif-r8a7778 # R-Car M1A + - renesas,mmcif-r8a7790 # R-Car H2 + - renesas,mmcif-r8a7791 # R-Car M2-W + - renesas,mmcif-r8a7793 # R-Car M2-N + - renesas,mmcif-r8a7794 # R-Car E2 + - renesas,mmcif-sh73a0 # SH-Mobile AG5 + - const: renesas,sh-mmcif + + reg: + maxItems: 1 + + interrupts: true + + clocks: + maxItems: 1 + + power-domains: + maxItems: 1 + + resets: + maxItems: 1 + + dmas: + minItems: 2 + maxItems: 4 + description: + Must contain a list of pairs of references to DMA specifiers, one for + transmission, and one for reception. + + dma-names: + minItems: 2 + maxItems: 4 + items: + enum: + - tx + - rx + + max-frequency: true + +required: + - compatible + - reg + - interrupts + - clocks + - power-domains + +if: + properties: + compatible: + contains: + const: renesas,mmcif-r7s72100 +then: + properties: + interrupts: + items: + - description: Error interrupt + - description: Normal operation interrupt + - description: Card detection interrupt +else: + if: + properties: + compatible: + contains: + enum: + - renesas,mmcif-r8a7740 + - renesas,mmcif-sh73a0 + then: + properties: + interrupts: + items: + - description: Error interrupt + - description: Normal operation interrupt + else: + if: + properties: + compatible: + contains: + enum: + - renesas,mmcif-r8a73a4 + - renesas,mmcif-r8a7778 + then: + properties: + interrupts: + maxItems: 1 + else: + properties: + interrupts: + maxItems: 1 + required: + - resets + +unevaluatedProperties: false + +examples: + - | + #include + #include + #include + + mmcif0: mmc@ee200000 { + compatible = "renesas,mmcif-r8a7790", "renesas,sh-mmcif"; + reg = <0xee200000 0x80>; + interrupts = ; + clocks = <&cpg CPG_MOD 315>; + power-domains = <&sysc R8A7790_PD_ALWAYS_ON>; + resets = <&cpg 315>; + dmas = <&dmac0 0xd1>, <&dmac0 0xd2>, <&dmac1 0xd1>, <&dmac1 0xd2>; + dma-names = "tx", "rx", "tx", "rx"; + max-frequency = <97500000>; + };