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Tue, 20 Oct 2020 00:25:37 -0700 (PDT) From: Neil Armstrong To: maz@kernel.org Subject: [PATCH 1/2] irqchip: irq-meson-gpio: make it possible to build as a module Date: Tue, 20 Oct 2020 09:25:31 +0200 Message-Id: <20201020072532.949137-2-narmstrong@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201020072532.949137-1-narmstrong@baylibre.com> References: <20201020072532.949137-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201020_032539_383054_DB698F19 X-CRM114-Status: GOOD ( 21.53 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:441 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Neil Armstrong , khilman@baylibre.com, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, jbrunet@baylibre.com Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+patchwork-linux-amlogic=patchwork.kernel.org@lists.infradead.org In order to reduce the kernel Image size on multi-platform distributions, make it possible to build the Amlogic GPIO IRQ controller as a module by switching it to a platform driver. Signed-off-by: Neil Armstrong Reviewed-by: Kevin Hilman Tested-by: Kevin Hilman --- drivers/irqchip/Kconfig | 5 +- drivers/irqchip/irq-meson-gpio.c | 89 ++++++++++++++++++++------------ 2 files changed, 59 insertions(+), 35 deletions(-) diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index bfc9719dbcdc..04fbae99a429 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -410,8 +410,9 @@ config IRQ_UNIPHIER_AIDET Support for the UniPhier AIDET (ARM Interrupt Detector). config MESON_IRQ_GPIO - bool "Meson GPIO Interrupt Multiplexer" - depends on ARCH_MESON + tristate "Meson GPIO Interrupt Multiplexer" + depends on ARCH_MESON || COMPILE_TEST + default ARCH_MESON select IRQ_DOMAIN_HIERARCHY help Support Meson SoC Family GPIO Interrupt Multiplexer diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c index bc7aebcc96e9..e3b462bd3981 100644 --- a/drivers/irqchip/irq-meson-gpio.c +++ b/drivers/irqchip/irq-meson-gpio.c @@ -15,6 +15,7 @@ #include #include #include +#include #define NUM_CHANNEL 8 #define MAX_INPUT_MUX 256 @@ -136,6 +137,7 @@ static const struct of_device_id meson_irq_gpio_matches[] = { struct meson_gpio_irq_controller { const struct meson_gpio_irq_params *params; void __iomem *base; + struct irq_domain *domain; u32 channel_irqs[NUM_CHANNEL]; DECLARE_BITMAP(channel_map, NUM_CHANNEL); spinlock_t lock; @@ -436,8 +438,8 @@ static const struct irq_domain_ops meson_gpio_irq_domain_ops = { .translate = meson_gpio_irq_domain_translate, }; -static int __init meson_gpio_irq_parse_dt(struct device_node *node, - struct meson_gpio_irq_controller *ctl) +static int meson_gpio_irq_parse_dt(struct device_node *node, + struct meson_gpio_irq_controller *ctl) { const struct of_device_id *match; int ret; @@ -463,63 +465,84 @@ static int __init meson_gpio_irq_parse_dt(struct device_node *node, return 0; } -static int __init meson_gpio_irq_of_init(struct device_node *node, - struct device_node *parent) +static int meson_gpio_intc_probe(struct platform_device *pdev) { - struct irq_domain *domain, *parent_domain; + struct device_node *node = pdev->dev.of_node, *parent; struct meson_gpio_irq_controller *ctl; + struct irq_domain *parent_domain; + struct resource *res; int ret; + parent = of_irq_find_parent(node); if (!parent) { - pr_err("missing parent interrupt node\n"); + dev_err(&pdev->dev, "missing parent interrupt node\n"); return -ENODEV; } parent_domain = irq_find_host(parent); if (!parent_domain) { - pr_err("unable to obtain parent domain\n"); + dev_err(&pdev->dev, "unable to obtain parent domain\n"); return -ENXIO; } - ctl = kzalloc(sizeof(*ctl), GFP_KERNEL); + ctl = devm_kzalloc(&pdev->dev, sizeof(*ctl), GFP_KERNEL); if (!ctl) return -ENOMEM; spin_lock_init(&ctl->lock); - ctl->base = of_iomap(node, 0); - if (!ctl->base) { - ret = -ENOMEM; - goto free_ctl; - } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + ctl->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(ctl->base)) + return PTR_ERR(ctl->base); ret = meson_gpio_irq_parse_dt(node, ctl); if (ret) - goto free_channel_irqs; - - domain = irq_domain_create_hierarchy(parent_domain, 0, - ctl->params->nr_hwirq, - of_node_to_fwnode(node), - &meson_gpio_irq_domain_ops, - ctl); - if (!domain) { - pr_err("failed to add domain\n"); - ret = -ENODEV; - goto free_channel_irqs; + return ret; + + ctl->domain = irq_domain_create_hierarchy(parent_domain, 0, + ctl->params->nr_hwirq, + of_node_to_fwnode(node), + &meson_gpio_irq_domain_ops, + ctl); + if (!ctl->domain) { + dev_err(&pdev->dev, "failed to add domain\n"); + return -ENODEV; } - pr_info("%d to %d gpio interrupt mux initialized\n", - ctl->params->nr_hwirq, NUM_CHANNEL); + platform_set_drvdata(pdev, ctl); + + dev_info(&pdev->dev, "%d to %d gpio interrupt mux initialized\n", + ctl->params->nr_hwirq, NUM_CHANNEL); return 0; +} -free_channel_irqs: - iounmap(ctl->base); -free_ctl: - kfree(ctl); +static int meson_gpio_intc_remove(struct platform_device *pdev) +{ + struct meson_gpio_irq_controller *ctl = platform_get_drvdata(pdev); - return ret; + irq_domain_remove(ctl->domain); + + return 0; } -IRQCHIP_DECLARE(meson_gpio_intc, "amlogic,meson-gpio-intc", - meson_gpio_irq_of_init); +static const struct of_device_id meson_gpio_intc_of_match[] = { + { .compatible = "amlogic,meson-gpio-intc", }, + {}, +}; +MODULE_DEVICE_TABLE(of, meson_gpio_intc_of_match); + +static struct platform_driver meson_gpio_intc_driver = { + .probe = meson_gpio_intc_probe, + .remove = meson_gpio_intc_remove, + .driver = { + .name = "meson-gpio-intc", + .of_match_table = meson_gpio_intc_of_match, + }, +}; +module_platform_driver(meson_gpio_intc_driver); + +MODULE_AUTHOR("Jerome Brunet "); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:meson-gpio-intc"); From patchwork Tue Oct 20 07:25:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 11845871 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 069A314B4 for ; Tue, 20 Oct 2020 07:26:10 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B220C223BF for ; 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Tue, 20 Oct 2020 00:25:39 -0700 (PDT) Received: from localhost.localdomain ([2a01:e35:2ec0:82b0:3c62:4f82:8f5f:de74]) by smtp.gmail.com with ESMTPSA id j5sm1487325wrx.88.2020.10.20.00.25.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Oct 2020 00:25:38 -0700 (PDT) From: Neil Armstrong To: maz@kernel.org Subject: [PATCH 2/2] arm64: meson: remove MESON_IRQ_GPIO selection Date: Tue, 20 Oct 2020 09:25:32 +0200 Message-Id: <20201020072532.949137-3-narmstrong@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201020072532.949137-1-narmstrong@baylibre.com> References: <20201020072532.949137-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201020_032540_925776_FA20E94C X-CRM114-Status: GOOD ( 12.54 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:341 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Neil Armstrong , khilman@baylibre.com, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, jbrunet@baylibre.com Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+patchwork-linux-amlogic=patchwork.kernel.org@lists.infradead.org Selecting MESON_IRQ_GPIO forces it as built-in, but we may need to build it as a module, thus remove it here and let the "default ARCH_MESON" build as built-in by default with the option to switch it to module. Signed-off-by: Neil Armstrong --- arch/arm64/Kconfig.platforms | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms index cd58f8495c45..dfb66917f665 100644 --- a/arch/arm64/Kconfig.platforms +++ b/arch/arm64/Kconfig.platforms @@ -157,7 +157,6 @@ config ARCH_MESON select COMMON_CLK_GXBB select COMMON_CLK_AXG select COMMON_CLK_G12A - select MESON_IRQ_GPIO help This enables support for the arm64 based Amlogic SoCs such as the s905, S905X/D, S912, A113X/D or S905X/D2