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From: Andrei Stefanescu <andrei.stefanescu@oss.nxp.com>
To: Markus Elfring <Markus.Elfring@web.de>,
	linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
	s32@nxp.com, Bartosz Golaszewski <brgl@bgdev.pl>,
	Chester Lin <chester62515@gmail.com>,
	Conor Dooley <conor+dt@kernel.org>,
	Dong Aisheng <aisheng.dong@nxp.com>,
	Fabio Estevam <festevam@gmail.com>,
	Ghennadi Procopciuc <Ghennadi.Procopciuc@nxp.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jacky Bai <ping.bai@nxp.com>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Larisa Grigore <larisa.grigore@nxp.com>,
	Lee Jones <lee@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Matthias Brugger <mbrugger@suse.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	kernel@pengutronix.de, Alberto Ruiz <aruizrui@redhat.com>,
	Christophe Lizzi <clizzi@redhat.com>,
	Enric Balletbo <eballetb@redhat.com>
Subject: Re: [PATCH v5 6/7] pinctrl: s32cc: add driver for GPIO functionality
Date: Mon, 4 Nov 2024 13:45:58 +0200	[thread overview]
Message-ID: <73d0eddd-f36d-4bcb-ae23-e0f21c3eb178@oss.nxp.com> (raw)
In-Reply-To: <fdf5702a-b739-4643-8288-86e6cfb8403d@web.de>

Hi Markus,

On 01/11/2024 17:45, Markus Elfring wrote:
>> Add basic GPIO functionality (request, free, get, set) for the existing
>> pinctrl SIUL2 driver since the hardware for pinctrl&GPIO is tightly
>> coupled.
> …
>> +++ b/drivers/pinctrl/nxp/pinctrl-s32cc.c
> …
>> +static int s32_gpio_request(struct gpio_chip *gc, unsigned int gpio)
>> +{
> …
>> +	spin_lock_irqsave(&ipctl->gpio_configs_lock, flags);
>> +	list_add(&gpio_pin->list, &ipctl->gpio_configs);
>> +	spin_unlock_irqrestore(&ipctl->gpio_configs_lock, flags);
> …
> 
> Under which circumstances would you become interested to apply a statement
> like “guard(spinlock_irqsave)(&ipctl->gpio_configs_lock);”?

Thank you for the suggestion! I will fix it in v6.

Best regards,
Andrei

> https://elixir.bootlin.com/linux/v6.12-rc5/source/include/linux/spinlock.h#L551
> 
> Regards,
> Markus



  reply	other threads:[~2024-11-04 11:55 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-01  8:06 [PATCH v5 0/7] gpio: siul2-s32g2: add initial GPIO driver Andrei Stefanescu
2024-11-01  8:06 ` [PATCH v5 1/7] dt-bindings: mfd: add support for the NXP SIUL2 module Andrei Stefanescu
2024-11-01 18:11   ` Frank Li
2024-11-04 11:11     ` Andrei Stefanescu
2024-11-02  8:42   ` Krzysztof Kozlowski
2024-11-04 11:21     ` Andrei Stefanescu
2024-11-01  8:06 ` [PATCH v5 2/7] mfd: nxp-siul2: add support for NXP SIUL2 Andrei Stefanescu
2024-11-01 17:18   ` kernel test robot
2024-11-01 18:20   ` Frank Li
2024-11-02  5:13   ` kernel test robot
2024-11-02  8:37   ` Dan Carpenter
2024-11-04 11:25     ` Andrei Stefanescu
2024-11-02  8:52   ` Krzysztof Kozlowski
2024-11-04 11:29     ` Andrei Stefanescu
2024-11-19  9:19       ` Krzysztof Kozlowski
2024-11-01  8:06 ` [PATCH v5 3/7] arm64: dts: s32g: make pinctrl part of mfd node Andrei Stefanescu
2024-11-01 18:22   ` Frank Li
2024-11-04 11:33     ` Andrei Stefanescu
2024-11-02  8:49   ` Krzysztof Kozlowski
2024-11-01  8:06 ` [PATCH v5 4/7] pinctrl: s32: convert the driver into an mfd cell Andrei Stefanescu
2024-11-01 11:53   ` Linus Walleij
2024-11-01 21:47   ` kernel test robot
2024-11-02  8:51   ` Krzysztof Kozlowski
2024-11-04 11:44     ` Andrei Stefanescu
2024-11-01  8:06 ` [PATCH v5 5/7] pinctrl: s32cc: change to "devm_pinctrl_register_and_init" Andrei Stefanescu
2024-11-01 11:54   ` Linus Walleij
2024-11-01  8:06 ` [PATCH v5 6/7] pinctrl: s32cc: add driver for GPIO functionality Andrei Stefanescu
2024-11-01 15:45   ` Markus Elfring
2024-11-04 11:45     ` Andrei Stefanescu [this message]
2024-11-01  8:06 ` [PATCH v5 7/7] MAINTAINERS: add MAINTAINER for NXP SIUL2 MFD driver Andrei Stefanescu
2024-11-01 11:56 ` [PATCH v5 0/7] gpio: siul2-s32g2: add initial GPIO driver Linus Walleij
2024-11-01 12:10   ` Andrei Stefanescu

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