From patchwork Thu Mar 6 23:58:27 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 870952 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id ACC5428136E; Thu, 6 Mar 2025 23:58:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741305533; cv=none; b=NEgM+sevet+PCEM922izbvkqcxHJM34MMqHWB25iHp7e4byX+zIuer9c1Sqjv9EALmesvc+hkePPDIhdxGa8JMD13tCE3QrMapoVFlIg/jDO8lbJUnDxSK+8nX0w8YdFRcHsZ+qlawy0cYyizivO0kTIoAY/PxPA7q8ErPphIJU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741305533; c=relaxed/simple; bh=Um5IfbD735MZAR0kncrcKD4JbWb8JEH4EMmhAjtc4Lc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lKejGQSGLL7eb/J0x83l6JQ89f+eWAjR2LI9xLJMYQSXAbHWI/pyBP51XvVtZD+P8iXipu9Q4nKJeVVeZxuRvVOfKqRBfjUMKTnW8OYF2mjjSJ/OjfAEgr5OcBSKfum0+u7AuaAO8Z/M6zZZuMMMq3PfhF8OHvQPpz8UJPGPHnI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com 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 3D370169E; Thu, 6 Mar 2025 15:59:04 -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 C4E173F673; Thu, 6 Mar 2025 15:58:49 -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 v4 8/8] pinctrl: sunxi: Add support for the secondary A523 GPIO ports Date: Thu, 6 Mar 2025 23:58:27 +0000 Message-ID: <20250306235827.4895-9-andre.przywara@arm.com> X-Mailer: git-send-email 2.46.3 In-Reply-To: <20250306235827.4895-1-andre.przywara@arm.com> References: <20250306235827.4895-1-andre.przywara@arm.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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);