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Wed, 12 Feb 2025 18:09:13 -0800 (PST) From: Inochi Amaoto To: Philipp Zabel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Paul Walmsley , Palmer Dabbelt , Albert Ou , Guo Ren , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org, Yixun Lan , Longbin Li Subject: [PATCH 1/4] dt-bindings: reset: add generic bit reset controller Date: Thu, 13 Feb 2025 10:08:54 +0800 Message-ID: <20250213020900.745551-2-inochiama@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250213020900.745551-1-inochiama@gmail.com> References: <20250213020900.745551-1-inochiama@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250212_180915_881351_F6C57BDD X-CRM114-Status: GOOD ( 13.39 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Some SoCs from Aspeed, Allwinner, Sophgo and Synopsys have a simple reset controller by toggling bit. It is a hard time for each device to add its own compatible to the driver. Since this device share a common design, it is possible to add a common device to reduce these unnecessary change. Add common binding for these kind generic reset controller. Signed-off-by: Inochi Amaoto --- .../bindings/reset/reset-simple.yaml | 42 +++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/reset-simple.yaml diff --git a/Documentation/devicetree/bindings/reset/reset-simple.yaml b/Documentation/devicetree/bindings/reset/reset-simple.yaml new file mode 100644 index 000000000000..77584e23e8e8 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/reset-simple.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reset/reset-simple.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Generic BIT Reset Controller + +maintainers: + - Inochi Amaoto + +description: + Some reset controller devices uses a simple method to perform + assert/deassert by toggling bit. Some SoCs from Aspeed, Allwinner, + Sophgo and Synopsys have this kind of reset controller instances. + +properties: + compatible: + enum: + - reset-simple-high + - reset-simple-low + + reg: + maxItems: 1 + + "#reset-cells": + const: 1 + +required: + - compatible + - reg + - "#reset-cells" + +additionalProperties: false + +examples: + - | + reset-controller@1000000 { + compatible = "reset-simple-high"; + reg = <0x1000000 0x1000>; + #reset-cells = <1>; + }; From patchwork Thu Feb 13 02:08:55 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Inochi Amaoto X-Patchwork-Id: 13972713 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id A3086C021A0 for ; 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Wed, 12 Feb 2025 18:09:18 -0800 (PST) Received: from localhost ([2001:da8:7001:11::cb]) by smtp.gmail.com with UTF8SMTPSA id 6a1803df08f44-6e65d7a3caesm2558026d6.54.2025.02.12.18.09.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Feb 2025 18:09:18 -0800 (PST) From: Inochi Amaoto To: Philipp Zabel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Paul Walmsley , Palmer Dabbelt , Albert Ou , Guo Ren , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org, Yixun Lan , Longbin Li Subject: [PATCH 2/4] reset: simple: add support generic reset-simple device Date: Thu, 13 Feb 2025 10:08:55 +0800 Message-ID: <20250213020900.745551-3-inochiama@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250213020900.745551-1-inochiama@gmail.com> References: <20250213020900.745551-1-inochiama@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250212_180920_004394_A0D05269 X-CRM114-Status: UNSURE ( 9.13 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add support for generic bit reset device. Signed-off-by: Inochi Amaoto --- drivers/reset/reset-simple.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/reset/reset-simple.c b/drivers/reset/reset-simple.c index 276067839830..a24f8fcc6a06 100644 --- a/drivers/reset/reset-simple.c +++ b/drivers/reset/reset-simple.c @@ -148,6 +148,9 @@ static const struct of_device_id reset_simple_dt_ids[] = { .data = &reset_simple_active_low }, { .compatible = "brcm,bcm4908-misc-pcie-reset", .data = &reset_simple_active_low }, + { .compatible = "reset-simple-high" }, + { .compatible = "reset-simple-low", + .data = &reset_simple_active_low }, { .compatible = "snps,dw-high-reset" }, { .compatible = "snps,dw-low-reset", .data = &reset_simple_active_low }, From patchwork Thu Feb 13 02:08:56 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Inochi Amaoto X-Patchwork-Id: 13972714 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 4F532C02198 for ; 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Wed, 12 Feb 2025 18:09:21 -0800 (PST) Received: from localhost ([2001:da8:7001:11::cb]) by smtp.gmail.com with UTF8SMTPSA id 6a1803df08f44-6e65dcece5esm2389976d6.115.2025.02.12.18.09.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Feb 2025 18:09:21 -0800 (PST) From: Inochi Amaoto To: Philipp Zabel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Paul Walmsley , Palmer Dabbelt , Albert Ou , Guo Ren , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org, Yixun Lan , Longbin Li Subject: [PATCH 3/4] dt-bindings: reset: simple: migrate sophgo sg2042 reset controller Date: Thu, 13 Feb 2025 10:08:56 +0800 Message-ID: <20250213020900.745551-4-inochiama@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250213020900.745551-1-inochiama@gmail.com> References: <20250213020900.745551-1-inochiama@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250212_180923_091219_EA66A89D X-CRM114-Status: GOOD ( 10.26 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Migrate SG2042 reset controller to reuse the simple device binding. Signed-off-by: Inochi Amaoto --- .../bindings/reset/reset-simple.yaml | 10 ++++-- .../bindings/reset/sophgo,sg2042-reset.yaml | 35 ------------------- 2 files changed, 7 insertions(+), 38 deletions(-) delete mode 100644 Documentation/devicetree/bindings/reset/sophgo,sg2042-reset.yaml diff --git a/Documentation/devicetree/bindings/reset/reset-simple.yaml b/Documentation/devicetree/bindings/reset/reset-simple.yaml index 77584e23e8e8..1c86b67ae190 100644 --- a/Documentation/devicetree/bindings/reset/reset-simple.yaml +++ b/Documentation/devicetree/bindings/reset/reset-simple.yaml @@ -16,9 +16,13 @@ description: properties: compatible: - enum: - - reset-simple-high - - reset-simple-low + oneOf: + - items: + - enum: + - sophgo,sg2042-reset + - const: reset-simple-low + - const: reset-simple-high + - const: reset-simple-low reg: maxItems: 1 diff --git a/Documentation/devicetree/bindings/reset/sophgo,sg2042-reset.yaml b/Documentation/devicetree/bindings/reset/sophgo,sg2042-reset.yaml deleted file mode 100644 index 76e1931f0908..000000000000 --- a/Documentation/devicetree/bindings/reset/sophgo,sg2042-reset.yaml +++ /dev/null @@ -1,35 +0,0 @@ -# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) -%YAML 1.2 ---- -$id: http://devicetree.org/schemas/reset/sophgo,sg2042-reset.yaml# -$schema: http://devicetree.org/meta-schemas/core.yaml# - -title: Sophgo SG2042 SoC Reset Controller - -maintainers: - - Chen Wang - -properties: - compatible: - const: sophgo,sg2042-reset - - reg: - maxItems: 1 - - "#reset-cells": - const: 1 - -required: - - compatible - - reg - - "#reset-cells" - -additionalProperties: false - -examples: - - | - rstgen: reset-controller@c00 { - compatible = "sophgo,sg2042-reset"; 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Wed, 12 Feb 2025 18:09:25 -0800 (PST) From: Inochi Amaoto To: Philipp Zabel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Paul Walmsley , Palmer Dabbelt , Albert Ou , Guo Ren , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org, Yixun Lan , Longbin Li Subject: [PATCH 4/4] riscv: dts: sg2042: Adapt reset generator for new binding Date: Thu, 13 Feb 2025 10:08:57 +0800 Message-ID: <20250213020900.745551-5-inochiama@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250213020900.745551-1-inochiama@gmail.com> References: <20250213020900.745551-1-inochiama@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250212_180926_781665_D49F5A40 X-CRM114-Status: GOOD ( 10.74 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org As the SG2042 reset controller reuse new binding, change the device compatible with new string. Signed-off-by: Inochi Amaoto --- arch/riscv/boot/dts/sophgo/sg2042.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/boot/dts/sophgo/sg2042.dtsi b/arch/riscv/boot/dts/sophgo/sg2042.dtsi index e62ac51ac55a..1e29f5975af9 100644 --- a/arch/riscv/boot/dts/sophgo/sg2042.dtsi +++ b/arch/riscv/boot/dts/sophgo/sg2042.dtsi @@ -499,7 +499,7 @@ intc: interrupt-controller@7090000000 { }; rstgen: reset-controller@7030013000 { - compatible = "sophgo,sg2042-reset"; + compatible = "sophgo,sg2042-reset", "reset-simple-low"; reg = <0x00000070 0x30013000 0x00000000 0x0000000c>; #reset-cells = <1>; };