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{ "id": 2175069, "url": "http://patchwork.ozlabs.org/api/1.0/covers/2175069/?format=api", "project": { "id": 38, "url": "http://patchwork.ozlabs.org/api/1.0/projects/38/?format=api", "name": "Linux PWM development", "link_name": "linux-pwm", "list_id": "linux-pwm.vger.kernel.org", "list_email": "linux-pwm@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20251217082504.80226-1-richard.genoud@bootlin.com>", "date": "2025-12-17T08:25:00", "name": "[v2,0/4] Introduce Allwinner H616 PWM controller", "submitter": { "id": 88519, "url": "http://patchwork.ozlabs.org/api/1.0/people/88519/?format=api", "name": "Richard Genoud", "email": "richard.genoud@bootlin.com" }, "series": [ { "id": 485644, "url": "http://patchwork.ozlabs.org/api/1.0/series/485644/?format=api", "date": "2025-12-17T08:25:01", "name": "Introduce Allwinner H616 PWM controller", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/485644/mbox/" } ], "headers": { "Return-Path": "\n <linux-pwm+bounces-7802-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pwm@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=bootlin.com header.i=@bootlin.com header.a=rsa-sha256\n header.s=dkim header.b=Sq1Ih3FF;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1765959923; cv=none;\n b=tqp3LbDAkLdvHQVlMd5Lc9RcjHT8PAsLga/0g7B/KmlQaNfd9yLcjJx8QkS3g++hXsKUqJf8egU6lt3eW8w7f6t1Q0LbBK8aALHWK/UmaubWfMbie3QnzGbJYtYbA8s1ccxdqklgq9pCdjzjjbP2KaULeIb78AE174LDuHAyaRU=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1765959923; c=relaxed/simple;\n\tbh=kruXyr2OgP/lTPoUJSyWYaLWejFS7ay7PdsApVq9qhs=;\n\th=From:To:Cc:Subject:Date:Message-ID:MIME-Version;\n b=mvf8g31tEUcdGzXjGxRGBXnNmai+0JbY72Gg66U1gab5EjNOAYHXEqAiByzVVne3bbwR3B12MIOSGK1g1cmqjHmPTP7XDeLi12g9uCRI6XclVz47JSXwPLlTRce5ZNCSHY+Ll1ElIj3n68gDWeZTm8rCStJ2TzuXGrxGV3b3LYw=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=bootlin.com;\n spf=pass smtp.mailfrom=bootlin.com;\n dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com\n header.b=Sq1Ih3FF; arc=none smtp.client-ip=185.171.202.116", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim;\n\tt=1765959916; h=from:subject:date:message-id:to:cc:mime-version:\n\t content-transfer-encoding; bh=EcFsxuHmn/wuUxliMzpmv5LpdKsUJIVznPv+0b4QKh4=;\n\tb=Sq1Ih3FFmgbcU6oRiBfwP1V1V9nwVBs3p8m0ZTHwVX2jV7CoFTVVSvmY/dV8WLs6ZNJcaW\n\tWkqhn/80RdH356f2XdFt6xHPpGa/JwlGCTsRv01+akyeP6aTUTLMQI2qjUoilbFTwzGDG3\n\tncVPwjqCffnEVVdGpeOOItADyd4ce9CvilKLuVECqM3Qgx5nwpc6phlsGI+QPkWsyLlfyo\n\tOEpTYOd9IXJjuoSTZER+SCKcsKWInbSl71RFD8EJyW4nRF1egKl/z2DUJ/xtWS3lDjV0fu\n\tg6hNzJGb48c3BAGSI76woe8mJC88tCxpgcXnhfAhKCgrp5cSswPgHwyN/XJPBA==", "From": "Richard Genoud <richard.genoud@bootlin.com>", "To": "=?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <u.kleine-koenig@baylibre.com>,\n Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>,\n Conor Dooley <conor+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,\n Jernej Skrabec <jernej.skrabec@gmail.com>,\n Samuel Holland <samuel@sholland.org>, Philipp Zabel <p.zabel@pengutronix.de>", "Cc": "Thomas Petazzoni <thomas.petazzoni@bootlin.com>,\n\tlinux-pwm@vger.kernel.org,\n\tdevicetree@vger.kernel.org,\n\tlinux-arm-kernel@lists.infradead.org,\n\tlinux-sunxi@lists.linux.dev,\n\tlinux-kernel@vger.kernel.org,\n\tRichard Genoud <richard.genoud@bootlin.com>", "Subject": "[PATCH v2 0/4] Introduce Allwinner H616 PWM controller", "Date": "Wed, 17 Dec 2025 09:25:00 +0100", "Message-ID": "<20251217082504.80226-1-richard.genoud@bootlin.com>", "X-Mailer": "git-send-email 2.47.3", "Precedence": "bulk", "X-Mailing-List": "linux-pwm@vger.kernel.org", "List-Id": "<linux-pwm.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pwm+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pwm+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Last-TLS-Session-Version": "TLSv1.3" }, "content": "Allwinner H616 PWM controller is quite different from the A10 one.\n\nIt can drive 6 PWM channels, and like for the A10, each channel has a\nbypass that permits to output a clock, bypassing the PWM logic, when\nenabled.\n\nBut, the channels are paired 2 by 2, sharing a first set of\nMUX/prescaler/gate.\nThen, for each channel, there's another prescaler (that will be bypassed\nif the bypass is enabled for this channel).\n\nIt looks like that:\n _____ ______ ________\nOSC24M --->| | | | | |\nAPB1 ----->| Mux |--->| Gate |--->| /div_m |-----> PWM_clock_src_xy\n |_____| |______| |________|\n ________\n | |\n +->| /div_k |---> PWM_clock_x\n | |________|\n | ______\n | | |\n +-->| Gate |----> PWM_bypass_clock_x\n | |______|\nPWM_clock_src_xy -----+ ________\n | | |\n +->| /div_k |---> PWM_clock_y\n | |________|\n | ______\n | | |\n +-->| Gate |----> PWM_bypass_clock_y\n |______|\n\nWhere xy can be 0/1, 2/3, 4/5\n\nPWM_clock_x/y serve for the PWM purpose.\nPWM_bypass_clock_x/y serve for the clock-provider purpose.\nThe common clock framework has been used to manage those clocks.\n\nThis PWM driver serves as a clock-provider for PWM_bypass_clocks.\nThis is needed for example by the embedded AC300 PHY which clock comes\nfrom PMW5 pin (PB12).\n\nThis series is based onto v6.19-rc1\n\nChanges since v1:\n- rebase onto v6.19-rc1\n- add missing headers\n- remove MODULE_ALIAS (suggested by Krzysztof)\n- use sun4i-pwm binding instead of creating a new one (suggested by Krzysztof)\n- retrieve the parent clocks from the devicetree\n- switch num_parents to unsigned int\n\nRichard Genoud (4):\n dt-bindings: pwm: allwinner: add h616 pwm compatible\n pwm: sun50i: Add H616 PWM support\n arm64: dts: allwinner: h616: add PWM controller\n MAINTAINERS: Add entry on Allwinner H616 PWM driver\n\n .../bindings/pwm/allwinner,sun4i-a10-pwm.yaml | 19 +-\n MAINTAINERS | 5 +\n .../arm64/boot/dts/allwinner/sun50i-h616.dtsi | 47 +\n drivers/pwm/Kconfig | 12 +\n drivers/pwm/Makefile | 1 +\n drivers/pwm/pwm-sun50i-h616.c | 892 ++++++++++++++++++\n 6 files changed, 975 insertions(+), 1 deletion(-)\n create mode 100644 drivers/pwm/pwm-sun50i-h616.c\n\n\nbase-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8" }