From mboxrd@z Thu Jan 1 00:00:00 1970 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 C978DC2B9F8 for ; Tue, 25 May 2021 12:16:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AB82161284 for ; Tue, 25 May 2021 12:16:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232411AbhEYMRg (ORCPT ); Tue, 25 May 2021 08:17:36 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:46186 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231678AbhEYMRb (ORCPT ); Tue, 25 May 2021 08:17:31 -0400 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: benjamin.gaignard) with ESMTPSA id C83E71F421E8 From: Benjamin Gaignard To: joro@8bytes.org, will@kernel.org, robh+dt@kernel.org, heiko@sntech.de, xxm@rock-chips.com, robin.murphy@arm.com Cc: iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Benjamin Gaignard , Rob Herring Subject: [PATCH v7 1/4] dt-bindings: iommu: rockchip: Convert IOMMU to DT schema Date: Tue, 25 May 2021 14:15:48 +0200 Message-Id: <20210525121551.606240-2-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210525121551.606240-1-benjamin.gaignard@collabora.com> References: <20210525121551.606240-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Convert Rockchip IOMMU to DT schema Signed-off-by: Benjamin Gaignard Reviewed-by: Rob Herring Reviewed-by: Heiko Stuebner --- .../bindings/iommu/rockchip,iommu.txt | 38 --------- .../bindings/iommu/rockchip,iommu.yaml | 80 +++++++++++++++++++ 2 files changed, 80 insertions(+), 38 deletions(-) delete mode 100644 Documentation/devicetree/bindings/iommu/rockchip,iommu.txt create mode 100644 Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt deleted file mode 100644 index 6ecefea1c6f9..000000000000 --- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt +++ /dev/null @@ -1,38 +0,0 @@ -Rockchip IOMMU -============== - -A Rockchip DRM iommu translates io virtual addresses to physical addresses for -its master device. Each slave device is bound to a single master device, and -shares its clocks, power domain and irq. - -Required properties: -- compatible : Should be "rockchip,iommu" -- reg : Address space for the configuration registers -- interrupts : Interrupt specifier for the IOMMU instance -- interrupt-names : Interrupt name for the IOMMU instance -- #iommu-cells : Should be <0>. This indicates the iommu is a - "single-master" device, and needs no additional information - to associate with its master device. See: - Documentation/devicetree/bindings/iommu/iommu.txt -- clocks : A list of clocks required for the IOMMU to be accessible by - the host CPU. -- clock-names : Should contain the following: - "iface" - Main peripheral bus clock (PCLK/HCL) (required) - "aclk" - AXI bus clock (required) - -Optional properties: -- rockchip,disable-mmu-reset : Don't use the mmu reset operation. - Some mmu instances may produce unexpected results - when the reset operation is used. - -Example: - - vopl_mmu: iommu@ff940300 { - compatible = "rockchip,iommu"; - reg = <0xff940300 0x100>; - interrupts = ; - interrupt-names = "vopl_mmu"; - clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>; - clock-names = "aclk", "iface"; - #iommu-cells = <0>; - }; diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml new file mode 100644 index 000000000000..099fc2578b54 --- /dev/null +++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iommu/rockchip,iommu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip IOMMU + +maintainers: + - Heiko Stuebner + +description: |+ + A Rockchip DRM iommu translates io virtual addresses to physical addresses for + its master device. Each slave device is bound to a single master device and + shares its clocks, power domain and irq. + + For information on assigning IOMMU controller to its peripheral devices, + see generic IOMMU bindings. + +properties: + compatible: + const: rockchip,iommu + + reg: + items: + - description: configuration registers for MMU instance 0 + - description: configuration registers for MMU instance 1 + minItems: 1 + maxItems: 2 + + interrupts: + items: + - description: interruption for MMU instance 0 + - description: interruption for MMU instance 1 + minItems: 1 + maxItems: 2 + + clocks: + items: + - description: Core clock + - description: Interface clock + + clock-names: + items: + - const: aclk + - const: iface + + "#iommu-cells": + const: 0 + + rockchip,disable-mmu-reset: + $ref: /schemas/types.yaml#/definitions/flag + description: | + Do not use the mmu reset operation. + Some mmu instances may produce unexpected results + when the reset operation is used. + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - "#iommu-cells" + +additionalProperties: false + +examples: + - | + #include + #include + + vopl_mmu: iommu@ff940300 { + compatible = "rockchip,iommu"; + reg = <0xff940300 0x100>; + interrupts = ; + clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>; + clock-names = "aclk", "iface"; + #iommu-cells = <0>; + }; -- 2.25.1 From mboxrd@z Thu Jan 1 00:00:00 1970 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, 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 6BA61C2B9F8 for ; Tue, 25 May 2021 12:16:56 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 35F3360FEB for ; 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Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1llVzP-004wyo-Ja; Tue, 25 May 2021 12:16:51 +0000 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1llVyd-004wea-4x; Tue, 25 May 2021 12:16:05 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: benjamin.gaignard) with ESMTPSA id C83E71F421E8 From: Benjamin Gaignard To: joro@8bytes.org, will@kernel.org, robh+dt@kernel.org, heiko@sntech.de, xxm@rock-chips.com, robin.murphy@arm.com Cc: iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Benjamin Gaignard , Rob Herring Subject: [PATCH v7 1/4] dt-bindings: iommu: rockchip: Convert IOMMU to DT schema Date: Tue, 25 May 2021 14:15:48 +0200 Message-Id: <20210525121551.606240-2-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210525121551.606240-1-benjamin.gaignard@collabora.com> References: <20210525121551.606240-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210525_051603_497131_8A873022 X-CRM114-Status: GOOD ( 16.96 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Convert Rockchip IOMMU to DT schema Signed-off-by: Benjamin Gaignard Reviewed-by: Rob Herring Reviewed-by: Heiko Stuebner --- .../bindings/iommu/rockchip,iommu.txt | 38 --------- .../bindings/iommu/rockchip,iommu.yaml | 80 +++++++++++++++++++ 2 files changed, 80 insertions(+), 38 deletions(-) delete mode 100644 Documentation/devicetree/bindings/iommu/rockchip,iommu.txt create mode 100644 Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt deleted file mode 100644 index 6ecefea1c6f9..000000000000 --- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt +++ /dev/null @@ -1,38 +0,0 @@ -Rockchip IOMMU -============== - -A Rockchip DRM iommu translates io virtual addresses to physical addresses for -its master device. Each slave device is bound to a single master device, and -shares its clocks, power domain and irq. - -Required properties: -- compatible : Should be "rockchip,iommu" -- reg : Address space for the configuration registers -- interrupts : Interrupt specifier for the IOMMU instance -- interrupt-names : Interrupt name for the IOMMU instance -- #iommu-cells : Should be <0>. This indicates the iommu is a - "single-master" device, and needs no additional information - to associate with its master device. See: - Documentation/devicetree/bindings/iommu/iommu.txt -- clocks : A list of clocks required for the IOMMU to be accessible by - the host CPU. -- clock-names : Should contain the following: - "iface" - Main peripheral bus clock (PCLK/HCL) (required) - "aclk" - AXI bus clock (required) - -Optional properties: -- rockchip,disable-mmu-reset : Don't use the mmu reset operation. - Some mmu instances may produce unexpected results - when the reset operation is used. - -Example: - - vopl_mmu: iommu@ff940300 { - compatible = "rockchip,iommu"; - reg = <0xff940300 0x100>; - interrupts = ; - interrupt-names = "vopl_mmu"; - clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>; - clock-names = "aclk", "iface"; - #iommu-cells = <0>; - }; diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml new file mode 100644 index 000000000000..099fc2578b54 --- /dev/null +++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iommu/rockchip,iommu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip IOMMU + +maintainers: + - Heiko Stuebner + +description: |+ + A Rockchip DRM iommu translates io virtual addresses to physical addresses for + its master device. Each slave device is bound to a single master device and + shares its clocks, power domain and irq. + + For information on assigning IOMMU controller to its peripheral devices, + see generic IOMMU bindings. + +properties: + compatible: + const: rockchip,iommu + + reg: + items: + - description: configuration registers for MMU instance 0 + - description: configuration registers for MMU instance 1 + minItems: 1 + maxItems: 2 + + interrupts: + items: + - description: interruption for MMU instance 0 + - description: interruption for MMU instance 1 + minItems: 1 + maxItems: 2 + + clocks: + items: + - description: Core clock + - description: Interface clock + + clock-names: + items: + - const: aclk + - const: iface + + "#iommu-cells": + const: 0 + + rockchip,disable-mmu-reset: + $ref: /schemas/types.yaml#/definitions/flag + description: | + Do not use the mmu reset operation. + Some mmu instances may produce unexpected results + when the reset operation is used. + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - "#iommu-cells" + +additionalProperties: false + +examples: + - | + #include + #include + + vopl_mmu: iommu@ff940300 { + compatible = "rockchip,iommu"; + reg = <0xff940300 0x100>; + interrupts = ; + clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>; + clock-names = "aclk", "iface"; + #iommu-cells = <0>; + }; -- 2.25.1 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip From mboxrd@z Thu Jan 1 00:00:00 1970 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 196D2C47086 for ; Tue, 25 May 2021 12:16:08 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9E7F661429 for ; 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Tue, 25 May 2021 12:16:04 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 52419403A3 for ; Tue, 25 May 2021 12:16:04 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9Sgrs59VlW87 for ; Tue, 25 May 2021 12:16:03 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by smtp4.osuosl.org (Postfix) with ESMTPS id E915D4039B for ; Tue, 25 May 2021 12:16:02 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: benjamin.gaignard) with ESMTPSA id C83E71F421E8 From: Benjamin Gaignard To: joro@8bytes.org, will@kernel.org, robh+dt@kernel.org, heiko@sntech.de, xxm@rock-chips.com, robin.murphy@arm.com Subject: [PATCH v7 1/4] dt-bindings: iommu: rockchip: Convert IOMMU to DT schema Date: Tue, 25 May 2021 14:15:48 +0200 Message-Id: <20210525121551.606240-2-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210525121551.606240-1-benjamin.gaignard@collabora.com> References: <20210525121551.606240-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 Cc: devicetree@vger.kernel.org, Benjamin Gaignard , Rob Herring , linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, iommu@lists.linux-foundation.org, kernel@collabora.com, linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Convert Rockchip IOMMU to DT schema Signed-off-by: Benjamin Gaignard Reviewed-by: Rob Herring Reviewed-by: Heiko Stuebner --- .../bindings/iommu/rockchip,iommu.txt | 38 --------- .../bindings/iommu/rockchip,iommu.yaml | 80 +++++++++++++++++++ 2 files changed, 80 insertions(+), 38 deletions(-) delete mode 100644 Documentation/devicetree/bindings/iommu/rockchip,iommu.txt create mode 100644 Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt deleted file mode 100644 index 6ecefea1c6f9..000000000000 --- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt +++ /dev/null @@ -1,38 +0,0 @@ -Rockchip IOMMU -============== - -A Rockchip DRM iommu translates io virtual addresses to physical addresses for -its master device. Each slave device is bound to a single master device, and -shares its clocks, power domain and irq. - -Required properties: -- compatible : Should be "rockchip,iommu" -- reg : Address space for the configuration registers -- interrupts : Interrupt specifier for the IOMMU instance -- interrupt-names : Interrupt name for the IOMMU instance -- #iommu-cells : Should be <0>. This indicates the iommu is a - "single-master" device, and needs no additional information - to associate with its master device. See: - Documentation/devicetree/bindings/iommu/iommu.txt -- clocks : A list of clocks required for the IOMMU to be accessible by - the host CPU. -- clock-names : Should contain the following: - "iface" - Main peripheral bus clock (PCLK/HCL) (required) - "aclk" - AXI bus clock (required) - -Optional properties: -- rockchip,disable-mmu-reset : Don't use the mmu reset operation. - Some mmu instances may produce unexpected results - when the reset operation is used. - -Example: - - vopl_mmu: iommu@ff940300 { - compatible = "rockchip,iommu"; - reg = <0xff940300 0x100>; - interrupts = ; - interrupt-names = "vopl_mmu"; - clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>; - clock-names = "aclk", "iface"; - #iommu-cells = <0>; - }; diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml new file mode 100644 index 000000000000..099fc2578b54 --- /dev/null +++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iommu/rockchip,iommu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip IOMMU + +maintainers: + - Heiko Stuebner + +description: |+ + A Rockchip DRM iommu translates io virtual addresses to physical addresses for + its master device. Each slave device is bound to a single master device and + shares its clocks, power domain and irq. + + For information on assigning IOMMU controller to its peripheral devices, + see generic IOMMU bindings. + +properties: + compatible: + const: rockchip,iommu + + reg: + items: + - description: configuration registers for MMU instance 0 + - description: configuration registers for MMU instance 1 + minItems: 1 + maxItems: 2 + + interrupts: + items: + - description: interruption for MMU instance 0 + - description: interruption for MMU instance 1 + minItems: 1 + maxItems: 2 + + clocks: + items: + - description: Core clock + - description: Interface clock + + clock-names: + items: + - const: aclk + - const: iface + + "#iommu-cells": + const: 0 + + rockchip,disable-mmu-reset: + $ref: /schemas/types.yaml#/definitions/flag + description: | + Do not use the mmu reset operation. + Some mmu instances may produce unexpected results + when the reset operation is used. + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - "#iommu-cells" + +additionalProperties: false + +examples: + - | + #include + #include + + vopl_mmu: iommu@ff940300 { + compatible = "rockchip,iommu"; + reg = <0xff940300 0x100>; + interrupts = ; + clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>; + clock-names = "aclk", "iface"; + #iommu-cells = <0>; + }; -- 2.25.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu From mboxrd@z Thu Jan 1 00:00:00 1970 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, 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 5BC00C4707F for ; Tue, 25 May 2021 12:18:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2263761402 for ; 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Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1llVzB-004wsj-07; Tue, 25 May 2021 12:16:37 +0000 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1llVyd-004wea-4x; Tue, 25 May 2021 12:16:05 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: benjamin.gaignard) with ESMTPSA id C83E71F421E8 From: Benjamin Gaignard To: joro@8bytes.org, will@kernel.org, robh+dt@kernel.org, heiko@sntech.de, xxm@rock-chips.com, robin.murphy@arm.com Cc: iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Benjamin Gaignard , Rob Herring Subject: [PATCH v7 1/4] dt-bindings: iommu: rockchip: Convert IOMMU to DT schema Date: Tue, 25 May 2021 14:15:48 +0200 Message-Id: <20210525121551.606240-2-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210525121551.606240-1-benjamin.gaignard@collabora.com> References: <20210525121551.606240-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210525_051603_497131_8A873022 X-CRM114-Status: GOOD ( 16.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Convert Rockchip IOMMU to DT schema Signed-off-by: Benjamin Gaignard Reviewed-by: Rob Herring Reviewed-by: Heiko Stuebner --- .../bindings/iommu/rockchip,iommu.txt | 38 --------- .../bindings/iommu/rockchip,iommu.yaml | 80 +++++++++++++++++++ 2 files changed, 80 insertions(+), 38 deletions(-) delete mode 100644 Documentation/devicetree/bindings/iommu/rockchip,iommu.txt create mode 100644 Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt deleted file mode 100644 index 6ecefea1c6f9..000000000000 --- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt +++ /dev/null @@ -1,38 +0,0 @@ -Rockchip IOMMU -============== - -A Rockchip DRM iommu translates io virtual addresses to physical addresses for -its master device. Each slave device is bound to a single master device, and -shares its clocks, power domain and irq. - -Required properties: -- compatible : Should be "rockchip,iommu" -- reg : Address space for the configuration registers -- interrupts : Interrupt specifier for the IOMMU instance -- interrupt-names : Interrupt name for the IOMMU instance -- #iommu-cells : Should be <0>. This indicates the iommu is a - "single-master" device, and needs no additional information - to associate with its master device. See: - Documentation/devicetree/bindings/iommu/iommu.txt -- clocks : A list of clocks required for the IOMMU to be accessible by - the host CPU. -- clock-names : Should contain the following: - "iface" - Main peripheral bus clock (PCLK/HCL) (required) - "aclk" - AXI bus clock (required) - -Optional properties: -- rockchip,disable-mmu-reset : Don't use the mmu reset operation. - Some mmu instances may produce unexpected results - when the reset operation is used. - -Example: - - vopl_mmu: iommu@ff940300 { - compatible = "rockchip,iommu"; - reg = <0xff940300 0x100>; - interrupts = ; - interrupt-names = "vopl_mmu"; - clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>; - clock-names = "aclk", "iface"; - #iommu-cells = <0>; - }; diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml new file mode 100644 index 000000000000..099fc2578b54 --- /dev/null +++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iommu/rockchip,iommu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip IOMMU + +maintainers: + - Heiko Stuebner + +description: |+ + A Rockchip DRM iommu translates io virtual addresses to physical addresses for + its master device. Each slave device is bound to a single master device and + shares its clocks, power domain and irq. + + For information on assigning IOMMU controller to its peripheral devices, + see generic IOMMU bindings. + +properties: + compatible: + const: rockchip,iommu + + reg: + items: + - description: configuration registers for MMU instance 0 + - description: configuration registers for MMU instance 1 + minItems: 1 + maxItems: 2 + + interrupts: + items: + - description: interruption for MMU instance 0 + - description: interruption for MMU instance 1 + minItems: 1 + maxItems: 2 + + clocks: + items: + - description: Core clock + - description: Interface clock + + clock-names: + items: + - const: aclk + - const: iface + + "#iommu-cells": + const: 0 + + rockchip,disable-mmu-reset: + $ref: /schemas/types.yaml#/definitions/flag + description: | + Do not use the mmu reset operation. + Some mmu instances may produce unexpected results + when the reset operation is used. + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - "#iommu-cells" + +additionalProperties: false + +examples: + - | + #include + #include + + vopl_mmu: iommu@ff940300 { + compatible = "rockchip,iommu"; + reg = <0xff940300 0x100>; + interrupts = ; + clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>; + clock-names = "aclk", "iface"; + #iommu-cells = <0>; + }; -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel