From: Gregory CLEMENT <gregory.clement@free-electrons.com> To: Linus Walleij <linus.walleij@linaro.org> Cc: "linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>, Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>, Thomas Petazzoni <thomas.petazzoni@free-electrons.com>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, Nadav Haklai <nadavh@marvell.com>, Victor Gu <xigu@marvell.com>, Omri Itach <omrii@marvell.com>, Marcin Wojtas <mw@semihalf.com>, Wilson Ding <dingwei@marvell.com>, Hua Jing <jinghua@marvell.com>, Terry Zhou <bjzhou@marvell.com> Subject: Re: [PATCH 4/6] pinctrl: aramda-37xx: Add irqchip support Date: Thu, 23 Mar 2017 15:41:11 +0100 [thread overview] Message-ID: <87inn0dpiw.fsf@free-electrons.com> (raw) In-Reply-To: <CACRpkdaVDQMoPXmT++vJ4v9mUejYSy28Ybwb0v2519OeCSPvXg@mail.gmail.com> (Linus Walleij's message of "Thu, 23 Mar 2017 11:36:52 +0100") Hi Linus, On jeu., mars 23 2017, Linus Walleij <linus.walleij@linaro.org> wrote: >> I switched to the use of GPIOLIB_IRQCHIP however it didn't really simplify >> my code, during the development on the v2 I did a commit only for this >> change and here it is the diffstat: >> 110 72 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c >> >> In my first version I used the generic irqchip so I was able to benefit >> of this framework, by switching to GPIOLIB_IRQCHIP I had to implement >> again some of the functions such as .mask, .unmask an ack. > > I still think this is better, so thanks. Yes, I understand that from the point of view of the gpio subsystem it is better to share as code as possible between the driver. > > If you have ideas of how we could combine generic irqchip with > GPIOLIB_IRQCHIP in an efficient manner, I'd be happy to hear > about it? I want gpiolib core to be involved setting things like > the .irq_request/release_resources() for example, so if you > would proceed with this solution, I would have had you add those > duplicating the gpiolib helpers instead. Indeed it could be interesting to be able to combine both, however it does not seem an easy task: at first sight both subsystem would need to be modified. It is obviously beyond the scope of this driver, but I will try to have a look on it to see what I could propose in a separate series. Gregory > > Yours, > Linus Walleij -- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com
WARNING: multiple messages have this Message-ID (diff)
From: gregory.clement@free-electrons.com (Gregory CLEMENT) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 4/6] pinctrl: aramda-37xx: Add irqchip support Date: Thu, 23 Mar 2017 15:41:11 +0100 [thread overview] Message-ID: <87inn0dpiw.fsf@free-electrons.com> (raw) In-Reply-To: <CACRpkdaVDQMoPXmT++vJ4v9mUejYSy28Ybwb0v2519OeCSPvXg@mail.gmail.com> (Linus Walleij's message of "Thu, 23 Mar 2017 11:36:52 +0100") Hi Linus, On jeu., mars 23 2017, Linus Walleij <linus.walleij@linaro.org> wrote: >> I switched to the use of GPIOLIB_IRQCHIP however it didn't really simplify >> my code, during the development on the v2 I did a commit only for this >> change and here it is the diffstat: >> 110 72 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c >> >> In my first version I used the generic irqchip so I was able to benefit >> of this framework, by switching to GPIOLIB_IRQCHIP I had to implement >> again some of the functions such as .mask, .unmask an ack. > > I still think this is better, so thanks. Yes, I understand that from the point of view of the gpio subsystem it is better to share as code as possible between the driver. > > If you have ideas of how we could combine generic irqchip with > GPIOLIB_IRQCHIP in an efficient manner, I'd be happy to hear > about it? I want gpiolib core to be involved setting things like > the .irq_request/release_resources() for example, so if you > would proceed with this solution, I would have had you add those > duplicating the gpiolib helpers instead. Indeed it could be interesting to be able to combine both, however it does not seem an easy task: at first sight both subsystem would need to be modified. It is obviously beyond the scope of this driver, but I will try to have a look on it to see what I could propose in a separate series. Gregory > > Yours, > Linus Walleij -- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com
next prev parent reply other threads:[~2017-03-23 14:41 UTC|newest] Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-12-22 17:24 [PATCH 0/6] Add support for pinctrl/gpio on Armada 37xx Gregory CLEMENT 2016-12-22 17:24 ` Gregory CLEMENT 2016-12-22 17:24 ` [PATCH 1/6] pinctrl: dt-bindings: Add documentation for Armada 37xx pin controllers Gregory CLEMENT 2016-12-22 17:24 ` Gregory CLEMENT 2016-12-30 8:35 ` Linus Walleij 2016-12-30 8:35 ` Linus Walleij 2017-03-22 11:42 ` Gregory CLEMENT 2017-03-22 11:42 ` Gregory CLEMENT 2016-12-22 17:24 ` [PATCH 2/6] pinctrl: armada-37xx: Add pin controller support for Armada 37xx Gregory CLEMENT 2016-12-22 17:24 ` Gregory CLEMENT 2016-12-30 8:44 ` Linus Walleij 2016-12-30 8:44 ` Linus Walleij 2017-03-22 11:47 ` Gregory CLEMENT 2017-03-22 11:47 ` Gregory CLEMENT 2016-12-22 17:24 ` [PATCH 3/6] pinctrl: armada-37xx: Add gpio support Gregory CLEMENT 2016-12-22 17:24 ` Gregory CLEMENT 2016-12-30 8:51 ` Linus Walleij 2016-12-30 8:51 ` Linus Walleij 2017-03-22 11:54 ` Gregory CLEMENT 2017-03-22 11:54 ` Gregory CLEMENT 2017-03-23 10:28 ` Linus Walleij 2017-03-23 10:28 ` Linus Walleij 2017-03-23 14:47 ` Gregory CLEMENT 2017-03-23 14:47 ` Gregory CLEMENT 2016-12-22 17:24 ` [PATCH 4/6] pinctrl: aramda-37xx: Add irqchip support Gregory CLEMENT 2016-12-22 17:24 ` Gregory CLEMENT 2016-12-30 8:58 ` Linus Walleij 2016-12-30 8:58 ` Linus Walleij 2017-03-22 12:02 ` Gregory CLEMENT 2017-03-22 12:02 ` Gregory CLEMENT 2017-03-23 10:36 ` Linus Walleij 2017-03-23 10:36 ` Linus Walleij 2017-03-23 14:41 ` Gregory CLEMENT [this message] 2017-03-23 14:41 ` Gregory CLEMENT 2016-12-22 17:25 ` [PATCH 5/6] ARM64: dts: marvell: Add pinctrl nodes for Armada 3700 Gregory CLEMENT 2016-12-22 17:25 ` Gregory CLEMENT 2016-12-22 17:25 ` [PATCH 6/6] ARM64: dts: marvell: armada37xx: add pinctrl definition Gregory CLEMENT 2016-12-22 17:25 ` Gregory CLEMENT 2016-12-30 9:00 ` Linus Walleij 2016-12-30 9:00 ` Linus Walleij
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