From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B4590497B96; Tue, 15 Sep 2026 11:15:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789470941; cv=none; b=VzYVNEMf9KW899LlP6CsxqBW3EPoUEnV54z6sVr34oyxyTk44Ht0U7i8mGVGeYj0/PKcQ1KU3MCcmDr3Eg8z3SgZea2SnBxvTRgZ8ObDJ1igunaO2UTp+Le1zQj19Nso0MzrdfnWtcE4Tx6A+5vBiqv+OZifc7ScJhtc5ArlVoc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789470941; c=relaxed/simple; bh=apLWzdvgb1s6ZZhPE9IW2ykFDz8tGxdLt1ms1gbZrRo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=mSZ/J7OZIWApkbWZtCqplvlpi4OdvqlBGws2XFTeA7kJpd7NnAXlL0l1L8S9HeHb0IW7eazucLpPD+3mjzNRwrUKfgRZyBWs+36BREzctcYDx1/3gqDbi1OPInPlu4LXqStKVoVSgWBV+np2TbL2SMKXY4fxGFxQys8Ush09ZGc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Y9BO/s29; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Y9BO/s29" Received: by smtp.kernel.org (Postfix) with ESMTPS id 65688C2BCB9; Tue, 15 Sep 2026 11:15:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1789470941; bh=apLWzdvgb1s6ZZhPE9IW2ykFDz8tGxdLt1ms1gbZrRo=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=Y9BO/s29j57o78qggRkGKful6hGXP2r6a2OTsdz/w/y9S8ebKCvw0F8c61dpp3OIV zbxy+hRDzxQrxrUnfKki8IUzYeZC3ZJ9MAlEzqIJ6YmCaJSDjnx4Znr6BMQODaHMWb uMiHlUIuWQAQ+p9myh4436uTs2ObGxevnlj5Edmwus73cH/SHn3PhKsUJ5Vjupw88C ibET0FHNqg/oRjC3KwZDglZiT/180loBJ3oTlzJKqLm5LASWcxMZpMf2EnrgbubZWH ziDPugAxDOvSGxqzfrc6TWqbvXZ8wEq4JdvDyD5XkuwKLKV8HDkI4mjmbnvo1KNG5U vvetE8L+Kzr7g== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 517CBC88E7B; Tue, 15 Sep 2026 11:15:41 +0000 (UTC) From: Long Zhao via B4 Relay Date: Tue, 15 Sep 2026 19:15:39 +0800 Subject: [PATCH v7 09/15] gpiolib: regmap: add gpio_regmap_get_chip() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260915-cv75-v5-v7-9-3297d3fbc9c0@ambarella.com> References: <20260915-cv75-v5-v7-0-3297d3fbc9c0@ambarella.com> In-Reply-To: <20260915-cv75-v5-v7-0-3297d3fbc9c0@ambarella.com> To: Arnd Bergmann , Krzysztof Kozlowski , Alexandre Belloni , soc@lists.linux.dev, linux-arm-kernel@lists.infradead.org Cc: Long Zhao , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michael Turquette , Stephen Boyd , Jerome Brunet , Linus Walleij , Bartosz Golaszewski , Greg Kroah-Hartman , Jiri Slaby , Andy Shevchenko , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Catalin Marinas , Will Deacon , Long Zhao , Lee Jones , mfd@lists.linux.dev, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1789470938; l=2769; i=longzhao@ambarella.com; s=20260730; h=from:subject:message-id; bh=nq9zwoYxD+NQm8KCrReHWkDIjxPc8aBRQx3slgbQG5I=; b=UeddQ/k7Bfy8M1+7iO6pMfuGpWJDosaPnbR8AD5YXnJ+tU3kaZLmZlTKQJxKltmA4XbkZBtYx 5KaLQ39XmhGAPEeZoRCm0OWLNLWcAdP+3CeBaRHKRGIQRJmtn+/dY9O X-Developer-Key: i=longzhao@ambarella.com; a=ed25519; pk=/xGhPTOX0/eYsyTWzyjjgAIW1Z/YD+IlnOnvcdRozow= X-Endpoint-Received: by B4 Relay for longzhao@ambarella.com/20260730 with auth_id=903 X-Original-From: Long Zhao Reply-To: longzhao@ambarella.com From: Long Zhao Let drivers that implement a custom irqchip retrieve the gpio_chip after registration. Attach a caller-provided irq_domain only when it is present. Signed-off-by: Long Zhao --- drivers/gpio/gpio-regmap.c | 20 +++++++++++++++----- include/linux/gpio/regmap.h | 1 + 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/gpio/gpio-regmap.c b/drivers/gpio/gpio-regmap.c index dfcc1f1122ec..56c2c873cbfa 100644 --- a/drivers/gpio/gpio-regmap.c +++ b/drivers/gpio/gpio-regmap.c @@ -296,6 +296,12 @@ void *gpio_regmap_get_drvdata(struct gpio_regmap *gpio) } EXPORT_SYMBOL_GPL(gpio_regmap_get_drvdata); +struct gpio_chip *gpio_regmap_get_chip(struct gpio_regmap *gpio) +{ + return &gpio->gpio_chip; +} +EXPORT_SYMBOL_GPL(gpio_regmap_get_chip); + /** * gpio_regmap_register() - Register a generic regmap GPIO controller * @config: configuration for gpio_regmap @@ -304,7 +310,6 @@ EXPORT_SYMBOL_GPL(gpio_regmap_get_drvdata); */ struct gpio_regmap *gpio_regmap_register(const struct gpio_regmap_config *config) { - struct irq_domain *irq_domain; struct gpio_regmap *gpio; struct gpio_chip *chip; int ret; @@ -412,6 +417,8 @@ struct gpio_regmap *gpio_regmap_register(const struct gpio_regmap_config *config #ifdef CONFIG_REGMAP_IRQ if (config->regmap_irq_chip) { + struct irq_domain *irq_domain; + gpio->regmap_irq_line = config->regmap_irq_line; ret = regmap_add_irq_chip_fwnode(dev_fwnode(config->parent), config->regmap, config->regmap_irq_line, config->regmap_irq_flags, @@ -420,12 +427,15 @@ struct gpio_regmap *gpio_regmap_register(const struct gpio_regmap_config *config goto err_remove_gpiochip; irq_domain = regmap_irq_get_domain(gpio->irq_chip_data); + if (irq_domain) { + ret = gpiochip_irqchip_add_domain(chip, irq_domain); + if (ret) + goto err_remove_gpiochip; + } } else #endif - irq_domain = config->irq_domain; - - if (irq_domain) { - ret = gpiochip_irqchip_add_domain(chip, irq_domain); + if (config->irq_domain) { + ret = gpiochip_irqchip_add_domain(chip, config->irq_domain); if (ret) goto err_remove_gpiochip; } diff --git a/include/linux/gpio/regmap.h b/include/linux/gpio/regmap.h index d7ffc12b00a2..6bc00b9775a5 100644 --- a/include/linux/gpio/regmap.h +++ b/include/linux/gpio/regmap.h @@ -128,5 +128,6 @@ void gpio_regmap_unregister(struct gpio_regmap *gpio); struct gpio_regmap *devm_gpio_regmap_register(struct device *dev, const struct gpio_regmap_config *config); void *gpio_regmap_get_drvdata(struct gpio_regmap *gpio); +struct gpio_chip *gpio_regmap_get_chip(struct gpio_regmap *gpio); #endif /* _LINUX_GPIO_REGMAP_H */ -- 2.34.1