From patchwork Thu Feb 27 23:14:47 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 13995357 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 08225C197BF for ; Thu, 27 Feb 2025 23:31:34 +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:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XlLJKA/rZVUHk60jeVpzwLxxcSxLepwcu1pCCYTuJMs=; b=1Q6AerAJj1vFiw1JyfyFNWl1vp z2XNrBHZWs36yXf4r56hSj0Vt3U3rzm0RbslZa80yCVo3oFxG1vMNTHGPThKZLc/wkg3abE0h4RMH yl0kHqPXGPRrMnSeFDnyMWy6PVtNB67q+fZagCk/LcefPtYLEXOl1AvKJ8PG0cv+FEzQrTiiatPbS xAa7rNVr9ue/cJ/IRoNgY8nB5Vuy1YaLItX9rUeH7mTA/Kpj0jTqCjZ9QWoqZ7d9S1V5UTK2zEzyr y9c9rowSus+LekojPvU88KjnpaWDWjDJN/AJc4o/LPLiWBkKJYX2l2Skc/3eKnBBLqECdHtYHOd2f as4ITwew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tnnLi-00000009B8e-2VK4; Thu, 27 Feb 2025 23:31:26 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tnn8C-000000098oi-3LpU for linux-arm-kernel@lists.infradead.org; Thu, 27 Feb 2025 23:17:30 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D64FB1688; Thu, 27 Feb 2025 15:17:43 -0800 (PST) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id CAB693F673; Thu, 27 Feb 2025 15:17:26 -0800 (PST) From: Andre Przywara To: Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v3 8/8] pinctrl: sunxi: Add support for the secondary A523 GPIO ports Date: Thu, 27 Feb 2025 23:14:47 +0000 Message-ID: <20250227231447.20161-9-andre.przywara@arm.com> X-Mailer: git-send-email 2.46.3 In-Reply-To: <20250227231447.20161-1-andre.przywara@arm.com> References: <20250227231447.20161-1-andre.przywara@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250227_151728_986965_9F8EAC64 X-CRM114-Status: GOOD ( 17.62 ) 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 As most other Allwinner SoCs before, the A523 chip contains a second GPIO controller, managing banks PL and PM. Use the newly introduced DT based pinctrl driver to describe just the generic pinctrl properties, so advertise the number of pins per bank and the interrupt capabilities. The actual function/mux assignment is taken from the devicetree. Signed-off-by: Andre Przywara Reviewed-by: Jernej Skrabec --- drivers/pinctrl/sunxi/Kconfig | 5 ++ drivers/pinctrl/sunxi/Makefile | 1 + drivers/pinctrl/sunxi/pinctrl-sun55i-a523-r.c | 54 +++++++++++++++++++ 3 files changed, 60 insertions(+) create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun55i-a523-r.c diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig index 0cbe466683650..dc62eba96348e 100644 --- a/drivers/pinctrl/sunxi/Kconfig +++ b/drivers/pinctrl/sunxi/Kconfig @@ -136,4 +136,9 @@ config PINCTRL_SUN55I_A523 default ARM64 && ARCH_SUNXI select PINCTRL_SUNXI +config PINCTRL_SUN55I_A523_R + bool "Support for the Allwinner A523 R-PIO" + default ARM64 && ARCH_SUNXI + select PINCTRL_SUNXI + endif diff --git a/drivers/pinctrl/sunxi/Makefile b/drivers/pinctrl/sunxi/Makefile index 4e55508ff7f76..951b3f1e4b4f1 100644 --- a/drivers/pinctrl/sunxi/Makefile +++ b/drivers/pinctrl/sunxi/Makefile @@ -28,5 +28,6 @@ obj-$(CONFIG_PINCTRL_SUN50I_H6_R) += pinctrl-sun50i-h6-r.o obj-$(CONFIG_PINCTRL_SUN50I_H616) += pinctrl-sun50i-h616.o obj-$(CONFIG_PINCTRL_SUN50I_H616_R) += pinctrl-sun50i-h616-r.o obj-$(CONFIG_PINCTRL_SUN55I_A523) += pinctrl-sun55i-a523.o +obj-$(CONFIG_PINCTRL_SUN55I_A523_R) += pinctrl-sun55i-a523-r.o obj-$(CONFIG_PINCTRL_SUN9I_A80) += pinctrl-sun9i-a80.o obj-$(CONFIG_PINCTRL_SUN9I_A80_R) += pinctrl-sun9i-a80-r.o diff --git a/drivers/pinctrl/sunxi/pinctrl-sun55i-a523-r.c b/drivers/pinctrl/sunxi/pinctrl-sun55i-a523-r.c new file mode 100644 index 0000000000000..69cd2b4ebd7d7 --- /dev/null +++ b/drivers/pinctrl/sunxi/pinctrl-sun55i-a523-r.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Allwinner A523 SoC r-pinctrl driver. + * + * Copyright (C) 2024 Arm Ltd. + */ + +#include +#include +#include +#include +#include + +#include "pinctrl-sunxi.h" + +static const u8 a523_r_nr_bank_pins[SUNXI_PINCTRL_MAX_BANKS] = +/* PL PM */ + { 14, 6 }; + +static const unsigned int a523_r_irq_bank_map[] = { 0, 1 }; + +static const u8 a523_r_irq_bank_muxes[SUNXI_PINCTRL_MAX_BANKS] = +/* PL PM */ + { 14, 14 }; + +static struct sunxi_pinctrl_desc a523_r_pinctrl_data = { + .irq_banks = ARRAY_SIZE(a523_r_irq_bank_map), + .irq_bank_map = a523_r_irq_bank_map, + .irq_read_needs_mux = true, + .io_bias_cfg_variant = BIAS_VOLTAGE_PIO_POW_MODE_SEL, + .pin_base = PL_BASE, +}; + +static int a523_r_pinctrl_probe(struct platform_device *pdev) +{ + return sunxi_pinctrl_dt_table_init(pdev, a523_r_nr_bank_pins, + a523_r_irq_bank_muxes, + &a523_r_pinctrl_data, + SUNXI_PINCTRL_NEW_REG_LAYOUT); +} + +static const struct of_device_id a523_r_pinctrl_match[] = { + { .compatible = "allwinner,sun55i-a523-r-pinctrl", }, + {} +}; + +static struct platform_driver a523_r_pinctrl_driver = { + .probe = a523_r_pinctrl_probe, + .driver = { + .name = "sun55i-a523-r-pinctrl", + .of_match_table = a523_r_pinctrl_match, + }, +}; +builtin_platform_driver(a523_r_pinctrl_driver);