From patchwork Thu Feb 16 09:37:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 13142764 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 59312C61DA4 for ; Thu, 16 Feb 2023 09:37:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230137AbjBPJhg (ORCPT ); Thu, 16 Feb 2023 04:37:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48898 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230003AbjBPJhW (ORCPT ); Thu, 16 Feb 2023 04:37:22 -0500 Received: from mail-lf1-x12e.google.com (mail-lf1-x12e.google.com [IPv6:2a00:1450:4864:20::12e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9909C4DE0C for ; Thu, 16 Feb 2023 01:37:14 -0800 (PST) Received: by mail-lf1-x12e.google.com with SMTP id b3so2051737lfv.2 for ; Thu, 16 Feb 2023 01:37:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=Wl7R3r+A9Tke4e8NDXF8qIlLiiRge2GGICvgO2R5L/w=; b=pxg7ldUM+y/9fT9HO1vpoLqyx8DYhPtT6WOYDNRvnDXt8XRMcK2H4HHWdzhdN2X3pq JqqfuHvt0rEDXyZjSQbWfIIqwdObuT7LyZr1EdmYFdfnEeuq8qQmFF++dAARzomTLzB8 AB6rLIKbdkGW6kAHAeOh4qiFiilKhBwjkOphvIkbJs+w2QO3qJ9fE4Uh01+l9xsonc/U fcqfkFUtiOe9BBS2Hdy5UvrXLWa7k4y6bQm61tKfbhQYfRh/1oE72H7e56Z5tkc4gBfQ SbyiSNKmV27w/l3jTYH9jYqTfdWC2w/dzQJ9jpF8kjB1WSE/f9vgRmUIVWsvA6z2VjUe tAiQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Wl7R3r+A9Tke4e8NDXF8qIlLiiRge2GGICvgO2R5L/w=; b=B9X3Cv+1Sax1tituNUNGMSmTswdtL2dGIRtVOQWxNRGok1M3vEeGbkHc3kfqnKOJj9 IKdUfaMA+IDWwXwuC3U4xZc7yFBIgqz9yni7Dqg5lmuJKTvZ+EtzDFkgNjWe79NZhOqC zNvQKqgxDMPauEPClEQ/wtEXyWMfINx7aIR0mFpCOB3QHfgfrcddpSyxZEpVaUYYja48 D2AiooFtuyJCWD6+13AvWAsmjgBjO396PUGcM+byUl9WIfcFVEbhb47meQDDEKMcgqIR PvyHY4UFCk2V6MIWJeXuOG3KbsnsXAXpc0EYQzvBwVomUYA+MRqJEFZjGEIzTlkokVc2 U2OQ== X-Gm-Message-State: AO0yUKUs/l+PcVNgzeGK2uY249jRL5hoi6JIlQPCyKr+/UJk8fxjfC8T 5qG3cPR+WRwiAFhNPMkke9cMQ0HoPrkf2fVB X-Google-Smtp-Source: AK7set+5lpyG/A2gkwOREVj7bxbC83xONCYNQmZgPFTTuF7G7vmN1Ht/jlCYKhdZTaaDaEp0VlLhFw== X-Received: by 2002:ac2:5544:0:b0:4d7:2e11:d075 with SMTP id l4-20020ac25544000000b004d72e11d075mr1551317lfk.45.1676540232747; Thu, 16 Feb 2023 01:37:12 -0800 (PST) Received: from [127.0.1.1] ([85.235.12.219]) by smtp.gmail.com with ESMTPSA id r3-20020a19ac43000000b004d8758a452asm229069lfc.288.2023.02.16.01.37.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Feb 2023 01:37:12 -0800 (PST) From: Linus Walleij Date: Thu, 16 Feb 2023 10:37:08 +0100 Subject: [PATCH 07/17] gpio: eic_sprd: Convert to immutable irq_chip MIME-Version: 1.0 Message-Id: <20230215-immutable-chips-v1-7-51a8f224a5d0@linaro.org> References: <20230215-immutable-chips-v1-0-51a8f224a5d0@linaro.org> In-Reply-To: <20230215-immutable-chips-v1-0-51a8f224a5d0@linaro.org> To: Mun Yew Tham , Bartosz Golaszewski , Joel Stanley , Andrew Jeffery , Alban Bedel , Orson Zhai , Baolin Wang , Chunyan Zhang , Jay Fang , Daniel Palmer , Romain Perier , Grygorii Strashko , Santosh Shilimkar , Kevin Hilman , William Breathitt Gray Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-omap@vger.kernel.org, Linus Walleij , Marc Zyngier X-Mailer: b4 0.12.1 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Convert the driver to immutable irq-chip with a bit of intuition. Cc: Marc Zyngier Signed-off-by: Linus Walleij --- drivers/gpio/gpio-eic-sprd.c | 33 ++++++++++++++++++++++++--------- 1 file changed, 24 insertions(+), 9 deletions(-) diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c index 8d722e026e9c..695d74ba55f0 100644 --- a/drivers/gpio/gpio-eic-sprd.c +++ b/drivers/gpio/gpio-eic-sprd.c @@ -11,6 +11,7 @@ #include #include #include +#include #include /* EIC registers definition */ @@ -91,7 +92,7 @@ enum sprd_eic_type { struct sprd_eic { struct gpio_chip chip; - struct irq_chip intc; + struct device *dev; void __iomem *base[SPRD_EIC_MAX_BANK]; enum sprd_eic_type type; spinlock_t lock; @@ -255,6 +256,7 @@ static void sprd_eic_irq_mask(struct irq_data *data) default: dev_err(chip->parent, "Unsupported EIC type.\n"); } + gpiochip_disable_irq(chip, irqd_to_hwirq(data)); } static void sprd_eic_irq_unmask(struct irq_data *data) @@ -263,6 +265,7 @@ static void sprd_eic_irq_unmask(struct irq_data *data) struct sprd_eic *sprd_eic = gpiochip_get_data(chip); u32 offset = irqd_to_hwirq(data); + gpiochip_enable_irq(chip, irqd_to_hwirq(data)); switch (sprd_eic->type) { case SPRD_EIC_DEBOUNCE: sprd_eic_update(chip, offset, SPRD_EIC_DBNC_IE, 1); @@ -564,6 +567,24 @@ static void sprd_eic_irq_handler(struct irq_desc *desc) chained_irq_exit(ic, desc); } +static void sprd_eic_irq_print_chip(struct irq_data *data, struct seq_file *p) +{ + struct gpio_chip *chip = irq_data_get_irq_chip_data(data); + struct sprd_eic *sprd_eic = gpiochip_get_data(chip); + + seq_printf(p, dev_name(sprd_eic->dev)); +} + +static const struct irq_chip sprd_eic_irq_chip = { + .irq_ack = sprd_eic_irq_ack, + .irq_mask = sprd_eic_irq_mask, + .irq_unmask = sprd_eic_irq_unmask, + .irq_set_type = sprd_eic_irq_set_type, + .irq_print_chip = sprd_eic_irq_print_chip, + .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_IMMUTABLE, + GPIOCHIP_IRQ_RESOURCE_HELPERS, +}; + static int sprd_eic_probe(struct platform_device *pdev) { const struct sprd_eic_variant_data *pdata; @@ -584,6 +605,7 @@ static int sprd_eic_probe(struct platform_device *pdev) spin_lock_init(&sprd_eic->lock); sprd_eic->type = pdata->type; + sprd_eic->dev = &pdev->dev; sprd_eic->irq = platform_get_irq(pdev, 0); if (sprd_eic->irq < 0) @@ -626,15 +648,8 @@ static int sprd_eic_probe(struct platform_device *pdev) break; } - sprd_eic->intc.name = dev_name(&pdev->dev); - sprd_eic->intc.irq_ack = sprd_eic_irq_ack; - sprd_eic->intc.irq_mask = sprd_eic_irq_mask; - sprd_eic->intc.irq_unmask = sprd_eic_irq_unmask; - sprd_eic->intc.irq_set_type = sprd_eic_irq_set_type; - sprd_eic->intc.flags = IRQCHIP_SKIP_SET_WAKE; - irq = &sprd_eic->chip.irq; - irq->chip = &sprd_eic->intc; + gpio_irq_chip_set_chip(irq, &sprd_eic_irq_chip); irq->handler = handle_bad_irq; irq->default_type = IRQ_TYPE_NONE; irq->parent_handler = sprd_eic_irq_handler;