From patchwork Wed Dec 25 00:32:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yixun Lan X-Patchwork-Id: 853550 Received: from smtp.gentoo.org (woodpecker.gentoo.org [140.211.166.183]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7652817993; Wed, 25 Dec 2024 00:33:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=140.211.166.183 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735086805; cv=none; b=atnICr4knLm27qtcavfEmboccLxZcZyCXuuqCM6fBG44nv3DQ9eW4UW10Y00g8s12EM6es/fsLfmRNtaitMNNCp4uSJYDOEP5Nof8oh0vU6Jizc6wraxuk9zZUCic3s8TZpVJaqEKC7gtNLGzePQyRc+q+d2zYEAwLc651W3RzQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735086805; c=relaxed/simple; bh=azsMLWSU24kZOm/Gqa8SMlagV4Qub9G9lNilVBghqyI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ZJvWsUaq426K4/Dzwhuh2CxAV7SQeECOViy494r5i+m8xqmruAkCkjX8bzXibdxTlX/Y5+AVDw+9A/M1JJO+Vx0p9bifO0S2OULBRI6IgSRj+eVcmijTwtFTnIkjT3y/66zfqC3tHzpxSFq2RGfJQHjr7rtksoYVrhAZ6s8QNts= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gentoo.org; spf=pass smtp.mailfrom=gentoo.org; arc=none smtp.client-ip=140.211.166.183 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gentoo.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gentoo.org From: Yixun Lan Date: Wed, 25 Dec 2024 08:32:39 +0800 Subject: [PATCH v3 1/3] dt-bindings: gpio: spacemit: add support for K1 SoC Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241225-03-k1-gpio-v3-1-27bb7b441d62@gentoo.org> References: <20241225-03-k1-gpio-v3-0-27bb7b441d62@gentoo.org> In-Reply-To: <20241225-03-k1-gpio-v3-0-27bb7b441d62@gentoo.org> To: Linus Walleij , Bartosz Golaszewski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Conor Dooley , Paul Walmsley , Palmer Dabbelt Cc: Yangyu Chen , Jisheng Zhang , Jesse Taube , Inochi Amaoto , Icenowy Zheng , Meng Zhang , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Yixun Lan X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2568; i=dlan@gentoo.org; h=from:subject:message-id; bh=azsMLWSU24kZOm/Gqa8SMlagV4Qub9G9lNilVBghqyI=; b=kA0DAAoBMarqR1lNu+0ByyZiAGdrUr2g757rWEynp1Ky5mHaV0bRmznm0pWMiqscTAKftYugU 4kCkwQAAQoAfRYhBLW6uMnDG3EVZwIj3DGq6kdZTbvtBQJna1K9XxSAAAAAAC4AKGlzc3Vlci1m cHJAbm90YXRpb25zLm9wZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRCNUJBQjhDOUMzMUI3MTE1Njc wMjIzREMzMUFBRUE0NzU5NERCQkVEAAoJEDGq6kdZTbvtNIEQAIyE4LzGcZuN0fqPdFWbFaWiiW 5cQqKqT8Ul/wyIWPsH+U0LE36bSf5UVs185RzlRuRoGsnkSo0+QWvisclaHZ0ZTAEEATO3ZNs+F tH+4CYVgpoG4d5YEwI9f9M7CVUVOW4HquNMy5nagruWd5RNUcUoDQvBd8h8lGdW/Heyl5JhknNW 0dNfb8Cao9rts99vpB8h2tQ69n0gtoZnHIOGf0uKfchi06siz6NYoQPor9mvhrxzlgwNJBlU1Rf wOxWkmXkxi28LeFCVn4Ja1x1dBWvW/tr6Pm/TUNT0nEaTu4BCp2L7Ae9kSqPPhIbvx9Kwdpm0em IWiRl1AI/yFxLHNcFbXLnnGAsKrTgEuCF08TEVKQUdtvz2V1Kt7ZLb35TYpd9Hb2mGJYKCoTznx WO4A6r6tOHdG+E0kGbvSjnVOtRRPNKt6ubGpJ82jf+rHlH9G6JRKvxRA1bh/Ctr95BPp61hmg4p wOOWDJp3wVtsAlUv/yB9wfwLynbJcC86a9ziYD8omvTeGuAqZmiS1ir66P4Jqoym24bPZLYux9s Yasl9Q9rljSzNsny8IXLvKL9UKbqS2+c6ImjU8ORIgofhY5qI5H2JJynrclWLDIny844SJfnTjL 0jygnGyE7zXab6lmLXcYm8fgO47upExnZPV8kmUQAdwFDOhX+7MMVJ61OL X-Developer-Key: i=dlan@gentoo.org; a=openpgp; fpr=50B03A1A5CBCD33576EF8CD7920C0DBCAABEFD55 The GPIO controller of K1 support basic functions as input/output, all pins can be used as interrupt which route to one IRQ line, trigger type can be select between rising edge, failing edge, or both. There are four GPIO banks, each consisting of 32 pins. Signed-off-by: Yixun Lan --- .../devicetree/bindings/gpio/spacemit,k1-gpio.yaml | 69 ++++++++++++++++++++++ 1 file changed, 69 insertions(+) diff --git a/Documentation/devicetree/bindings/gpio/spacemit,k1-gpio.yaml b/Documentation/devicetree/bindings/gpio/spacemit,k1-gpio.yaml new file mode 100644 index 0000000000000000000000000000000000000000..6ce8f27bd4a5a85f730420e103ea51710200d301 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/spacemit,k1-gpio.yaml @@ -0,0 +1,69 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/spacemit,k1-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SpacemiT K1 GPIO controller + +maintainers: + - Yixun Lan + +description: + The controller's registers are organized as sets of eight 32-bit + registers with each set controlling a bank of up to 32 pins. A single + interrupt is shared for all of the banks handled by the controller. + +properties: + compatible: + const: spacemit,k1-gpio + + reg: + maxItems: 1 + + "#gpio-cells": + const: 2 + + gpio-controller: true + + gpio-ranges: true + + interrupts: + maxItems: 1 + description: + The interrupt shared by all GPIO lines for this controller. + + "#interrupt-cells": + const: 2 + description: + The first cell is the GPIO number, the second should specify interrupt + flag. The controller does not support level interrupts, flags of + IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_LEVEL_LOW should not be used. + Refer for valid flags. + + interrupt-controller: true + +required: + - compatible + - reg + - gpio-controller + - "#gpio-cells" + - interrupts + - interrupt-controller + - "#interrupt-cells" + +additionalProperties: false + +examples: + - | + gpio@d4019000 { + compatible = "spacemit,k1-gpio"; + reg = <0xd4019000 0x800>; + gpio-controller; + #gpio-cells = <2>; + interrupts = <58>; + interrupt-parent = <&plic>; + interrupt-controller; + #interrupt-cells = <2>; + gpio-ranges = <&pinctrl 0 0 128>; + };