From patchwork Tue Oct 1 17:29:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13818591 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 58E23CEACF0 for ; Tue, 1 Oct 2024 17:31:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To: Content-Transfer-Encoding:Content-Type:MIME-Version:Message-Id:Date:Subject: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=BoBmgLTKqjtTAQGYMtXi32omC+oq0koKfJcKqZ0/NQ8=; b=RlxKVzILIU0u3O YlP0bcdLPjvAF01UOjcBN9FXYUgjLxrlIfBz3tJeGtFkfzruTU2u4DpGQC5ahGPYk8e3v/BqFqzaX JVyrsTU+fiZBChfdYVeyTBA0MBd37rKRZ7PCpaJ8mwULi6HpYjP58rffMveMngwPNB2dMAoM6brDT 0Tcpm1ZOvx/QN8A1lcn+LMXU+yVBuIiLO3Ry4QUul44wri6Om81nxl9C4MnOg3w2q/5lZOF8W9pss jRDE8KrbjuDfCrBKOAOx0pB5lwufWC5iMQeCFAb+c87uDiekVWMDbMFr1L6Wx8MSQEJnvXGpepxnb 8ZzhZkblVDEZMkPk2n/Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1svgia-00000003f6y-3SRR; Tue, 01 Oct 2024 17:31:24 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1svghM-00000003ezO-2cYU; Tue, 01 Oct 2024 17:30:10 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 467E55C54D0; Tue, 1 Oct 2024 17:30:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 71044C4CEC6; Tue, 1 Oct 2024 17:30:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727803807; bh=k41iufEvAgZKKjtKzshB6ZOXsBvWR7K1rRznnG1aVTI=; h=From:Subject:Date:To:Cc:From; b=i30gMClf8GT+f0jPFRdVB5GECcVbPD79WWw+qYhevh0w0zaY2EboAtLJzK2Bez4YS XsW7aUYJF1Fs+zJ+dUTdl++yWs85kBBHk00ZqhcBzEtqIB3OkT0HDoj5R1m7rOqXoW 6bPtt31LFB1c+/1u0BITYX61XaEONSMzpG+Q4NZ3vQcJ03yThjVyn/vDaap+3fnfX0 y4GhINwFqQ7bUz3KNWjvaT2SbUbW9JlC/yFXzjgb4JhTMm6yaar1CgxisaL4+gZdZa pN2WgQ2Vz92yfVYO6dIYItko7xGOj3OpVMWsyGuOW3A5vaLh+58ZXBEAIyevuEAUV2 pnCxxZoDxlbnA== From: Lorenzo Bianconi Subject: [PATCH v5 0/5] Add mfd, pinctrl and pwm support to EN7581 SoC Date: Tue, 01 Oct 2024 19:29:29 +0200 Message-Id: <20241001-en7581-pinctrl-v5-0-dc1ce542b6c6@kernel.org> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAHkx/GYC/2WQy07DMBBFf6XyGkd+jF9d8R+IhScZtxYlLk6Ig Kr/jpsiFejyjnTunJkTm6hmmth2c2KVljzlMrZgHjas38dxRzwPLTMlFAgvPafRGS/5MY/9XA9 cYpJKSANIgjXoWCnlj7Xw6bnlVMsrn/eV4lojBqMdeY8WPDjsgSA4Y1FBQEVp6BP4gEF10imtg wKAbpfn7lAqjV/l8YXqSIeu1N3Pskpv7016vm68OW83q7EThqdSueVScjwmHjUESr3wQ/LbRbG L4z5Pc6mf6w/a6NJzPVep/+cuiguOURoTpNPRpd9Gl65F/+K1vON144MnwoQwRGvveLjxQd7z0 HgrYh/04KxA/MOfz+dvo5lC69EBAAA= To: Lorenzo Bianconi , Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , Lee Jones , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= Cc: linux-mediatek@lists.infradead.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, upstream@airoha.com, benjamin.larsson@genexis.eu, ansuelsmth@gmail.com, linux-pwm@vger.kernel.org X-Mailer: b4 0.14.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241001_103008_891849_C511BFE2 X-CRM114-Status: GOOD ( 20.36 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Introduce airoha-mfd driver in order to load pinctrl and pwm drivers for EN7581 SoC. airoha-mfd is needed since both pinctrl and pwm drivers needs to access the same memory block (gpio memory region) to configure {gio,irq}_chip and pwm functionalities respectively, so model them as childs of a parent mfd driver. Current EN7581 pinctrl driver supports the following functionalities: - pin multiplexing via chip_scu syscon - pin pull-up, pull-down, open-drain, current strength, {input,output}_enable, output_{low,high} via chip_scu syscon - gpio controller - irq controller --- Changes in v5: - use spin_lock in airoha_pinctrl_rmw instead of a mutex since it can run in interrupt context - remove unused includes in pinctrl driver - since the irq_chip is immutable, allocate the gpio_irq_chip struct statically in pinctrl driver - rely on regmap APIs in pinctrl driver but keep the spin_lock local to the driver - rely on guard/guard_scope APIs in pinctrl driver - improve naming convention pinctrl driver - introduce airoha_pinconf_set_pin_value utility routine - Link to v4: https://lore.kernel.org/r/20240911-en7581-pinctrl-v4-0-60ac93d760bb@kernel.org Changes in v4: - add 'Limitation' description in pwm driver - fix comments in pwm driver - rely on mfd->base __iomem pointer in pwm driver, modify register offsets according to it and get rid of sgpio_cfg, flash_cfg and cycle_cfg pointers - simplify register utility routines in pwm driver - use 'generator' instead of 'waveform' suffix for pwm routines - fix possible overflow calculating duty cycle in pwm driver - do not modify pwm state in free callback in pwm driver - cap the maximum period in pwm driver - do not allow inverse polarity in pwm driver - do not set of_xlate callback in the pwm driver and allow the stack to do it - fix MAINTAINERS file for airoha pinctrl driver - fix undefined reference to __ffsdi2 in pinctrl driver - simplify airoha,en7581-gpio-sysctl.yam binding - Link to v3: https://lore.kernel.org/r/20240831-en7581-pinctrl-v3-0-98eebfb4da66@kernel.org Changes in v3: - introduce airoha-mfd driver - add pwm driver to the same series - model pinctrl and pwm drivers as childs of a parent mfd driver. - access chip-scu memory region in pinctrl driver via syscon - introduce a single airoha,en7581-gpio-sysctl.yaml binding and get rid of dedicated bindings for pinctrl and pwm - add airoha,en7581-chip-scu.yaml binding do the series - Link to v2: https://lore.kernel.org/r/20240822-en7581-pinctrl-v2-0-ba1559173a7f@kernel.org Changes in v2: - Fix compilation errors - Collapse some register mappings for gpio and irq controllers - update dt-bindings according to new register mapping - fix some dt-bindings errors - Link to v1: https://lore.kernel.org/all/cover.1723392444.git.lorenzo@kernel.org/ --- Benjamin Larsson (1): pwm: airoha: Add support for EN7581 SoC Christian Marangi (2): dt-bindings: mfd: Add support for Airoha EN7581 GPIO System Controller mfd: airoha: Add support for Airoha EN7581 MFD Lorenzo Bianconi (2): dt-bindings: arm: airoha: Add the chip-scu node for EN7581 SoC pinctrl: airoha: Add support for EN7581 SoC .../bindings/arm/airoha,en7581-chip-scu.yaml | 42 + .../bindings/mfd/airoha,en7581-gpio-sysctl.yaml | 433 +++ MAINTAINERS | 7 + drivers/mfd/Kconfig | 8 + drivers/mfd/Makefile | 2 + drivers/mfd/airoha-en7581-gpio-mfd.c | 72 + drivers/pinctrl/mediatek/Kconfig | 17 +- drivers/pinctrl/mediatek/Makefile | 1 + drivers/pinctrl/mediatek/pinctrl-airoha.c | 3007 ++++++++++++++++++++ drivers/pwm/Kconfig | 10 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-airoha.c | 414 +++ include/linux/mfd/airoha-en7581-mfd.h | 9 + 13 files changed, 4022 insertions(+), 1 deletion(-) --- base-commit: 437d220f284a16e52c7d7f819e4a1a7e25fe8fe9 change-id: 20240818-en7581-pinctrl-1bf120154be0 prerequisite-change-id: 20240705-for-6-11-bpf-a349efc08df8:v2 Best regards,