From patchwork Mon Sep 30 11:52:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 11166555 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EC6C716C1 for ; Mon, 30 Sep 2019 11:52:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D573021855 for ; Mon, 30 Sep 2019 11:52:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729590AbfI3Lw2 (ORCPT ); Mon, 30 Sep 2019 07:52:28 -0400 Received: from kirsty.vergenet.net ([202.4.237.240]:39712 "EHLO kirsty.vergenet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726314AbfI3Lw2 (ORCPT ); Mon, 30 Sep 2019 07:52:28 -0400 Received: from reginn.horms.nl (watermunt.horms.nl [80.127.179.77]) by kirsty.vergenet.net (Postfix) with ESMTPA id E61A425B786; Mon, 30 Sep 2019 21:52:22 +1000 (AEST) Received: by reginn.horms.nl (Postfix, from userid 7100) id DAE2694443D; Mon, 30 Sep 2019 13:52:20 +0200 (CEST) From: Simon Horman To: Rob Herring , Mark Rutland , Andy Gross , Geert Uytterhoeven Cc: Magnus Damm , Yoshihiro Kaneko , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Simon Horman Subject: [PATCH v4 2/3] dt-bindings: bus: renesas-bsc: convert bindings to json-schema Date: Mon, 30 Sep 2019 13:52:04 +0200 Message-Id: <20190930115205.25204-3-horms+renesas@verge.net.au> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190930115205.25204-1-horms+renesas@verge.net.au> References: <20190930115205.25204-1-horms+renesas@verge.net.au> Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Convert Renesas Bus State Controller (BSC) bindings documentation to json-schema. Signed-off-by: Simon Horman --- * Based on v5.3 * Tested using: # ARCH=arm64 make dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/bus/renesas,bsc.yaml # ARCH=arm make dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/bus/renesas,bsc.yaml v4 * No change v3 * v2 was miss-posted as v3 v2 * Add required field as suggested by Ulrich Hecht * Add custom 'select' in that leaves out "simple-pm-bus" to avoid matching on users of the binding documented in simple-pm-bus.yaml, which this binding extends --- .../devicetree/bindings/bus/renesas,bsc.txt | 46 ----------------- .../devicetree/bindings/bus/renesas,bsc.yaml | 60 ++++++++++++++++++++++ 2 files changed, 60 insertions(+), 46 deletions(-) delete mode 100644 Documentation/devicetree/bindings/bus/renesas,bsc.txt create mode 100644 Documentation/devicetree/bindings/bus/renesas,bsc.yaml diff --git a/Documentation/devicetree/bindings/bus/renesas,bsc.txt b/Documentation/devicetree/bindings/bus/renesas,bsc.txt deleted file mode 100644 index 90e947269437..000000000000 --- a/Documentation/devicetree/bindings/bus/renesas,bsc.txt +++ /dev/null @@ -1,46 +0,0 @@ -Renesas Bus State Controller (BSC) -================================== - -The Renesas Bus State Controller (BSC, sometimes called "LBSC within Bus -Bridge", or "External Bus Interface") can be found in several Renesas ARM SoCs. -It provides an external bus for connecting multiple external devices to the -SoC, driving several chip select lines, for e.g. NOR FLASH, Ethernet and USB. - -While the BSC is a fairly simple memory-mapped bus, it may be part of a PM -domain, and may have a gateable functional clock. -Before a device connected to the BSC can be accessed, the PM domain -containing the BSC must be powered on, and the functional clock -driving the BSC must be enabled. - -The bindings for the BSC extend the bindings for "simple-pm-bus". - - -Required properties - - compatible: Must contain an SoC-specific value, and "renesas,bsc" and - "simple-pm-bus" as fallbacks. - SoC-specific values can be: - "renesas,bsc-r8a73a4" for R-Mobile APE6 (r8a73a4) - "renesas,bsc-sh73a0" for SH-Mobile AG5 (sh73a0) - - #address-cells, #size-cells, ranges: Must describe the mapping between - parent address and child address spaces. - - reg: Must contain the base address and length to access the bus controller. - -Optional properties: - - interrupts: Must contain a reference to the BSC interrupt, if available. - - clocks: Must contain a reference to the functional clock, if available. - - power-domains: Must contain a reference to the PM domain, if available. - - -Example: - - bsc: bus@fec10000 { - compatible = "renesas,bsc-sh73a0", "renesas,bsc", - "simple-pm-bus"; - #address-cells = <1>; - #size-cells = <1>; - ranges = <0 0 0x20000000>; - reg = <0xfec10000 0x400>; - interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&zb_clk>; - power-domains = <&pd_a4s>; - }; diff --git a/Documentation/devicetree/bindings/bus/renesas,bsc.yaml b/Documentation/devicetree/bindings/bus/renesas,bsc.yaml new file mode 100644 index 000000000000..7d10b62a52d5 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/renesas,bsc.yaml @@ -0,0 +1,60 @@ +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/renesas,bsc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas Bus State Controller (BSC) + +maintainers: + - Geert Uytterhoeven + +description: | + The Renesas Bus State Controller (BSC, sometimes called "LBSC within Bus + Bridge", or "External Bus Interface") can be found in several Renesas ARM + SoCs. It provides an external bus for connecting multiple external + devices to the SoC, driving several chip select lines, for e.g. NOR + FLASH, Ethernet and USB. + + While the BSC is a fairly simple memory-mapped bus, it may be part of a + PM domain, and may have a gateable functional clock. Before a device + connected to the BSC can be accessed, the PM domain containing the BSC + must be powered on, and the functional clock driving the BSC must be + enabled. + + The bindings for the BSC extend the bindings for "simple-pm-bus". + +allOf: + - $ref: simple-pm-bus.yaml# + +properties: + compatible: + items: + - enum: + - renesas,bsc-r8a73a4 # R-Mobile APE6 (r8a73a4) + - renesas,bsc-sh73a0 # SH-Mobile AG5 (sh73a0) + - const: renesas,bsc + - {} # simple-pm-bus, but not listed here to avoid false select + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - reg + +examples: + - | + #include + + bsc: bus@fec10000 { + compatible = "renesas,bsc-sh73a0", "renesas,bsc", "simple-pm-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0 0x20000000>; + reg = <0xfec10000 0x400>; + interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&zb_clk>; + power-domains = <&pd_a4s>; + };