From: "A.s. Dong" <aisheng.dong@nxp.com> To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de> Cc: "dongas86@gmail.com" <dongas86@gmail.com>, Linus Walleij <linus.walleij@linaro.org>, Russell King - ARM Linux <linux@armlinux.org.uk>, Stefan Agner <stefan@agner.ch>, "linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>, "robh+dt@kernel.org" <robh+dt@kernel.org>, dl-linux-imx <linux-imx@nxp.com>, "kernel@pengutronix.de" <kernel@pengutronix.de>, Fabio Estevam <fabio.estevam@nxp.com>, "shawnguo@kernel.org" <shawnguo@kernel.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org> Subject: RE: [PATCH V2 4/8] gpio: vf610: add optional clock support Date: Tue, 23 Oct 2018 13:39:54 +0000 [thread overview] Message-ID: <AM0PR04MB4211BBD3A3D883320F8D06EB80F50@AM0PR04MB4211.eurprd04.prod.outlook.com> (raw) In-Reply-To: <20181023124137.wivishetiasdytfr@pengutronix.de> > -----Original Message----- > From: Uwe Kleine-König [mailto:u.kleine-koenig@pengutronix.de] > Sent: Tuesday, October 23, 2018 8:42 PM > To: A.s. Dong <aisheng.dong@nxp.com> > Cc: Russell King - ARM Linux <linux@armlinux.org.uk>; dongas86@gmail.com; > Linus Walleij <linus.walleij@linaro.org>; Stefan Agner <stefan@agner.ch>; > linux-gpio@vger.kernel.org; robh+dt@kernel.org; dl-linux-imx > <linux-imx@nxp.com>; kernel@pengutronix.de; Fabio Estevam > <fabio.estevam@nxp.com>; shawnguo@kernel.org; > linux-arm-kernel@lists.infradead.org > Subject: Re: [PATCH V2 4/8] gpio: vf610: add optional clock support > > On Tue, Oct 23, 2018 at 12:23:12PM +0000, A.s. Dong wrote: > > Hi Russell, > > > > > -----Original Message----- > > > From: Russell King - ARM Linux [mailto:linux@armlinux.org.uk] > > > Sent: Tuesday, October 23, 2018 8:04 PM > > [...] > > > On Tue, Oct 23, 2018 at 11:49:17AM +0000, A.s. Dong wrote: > > > > + clk_gpio = devm_clk_get(&pdev->dev, "gpio"); > > > > + clk_port = devm_clk_get(&pdev->dev, "port"); > > > > + if ((PTR_ERR(clk_gpio) == -EPROBE_DEFER) || > > > > + (PTR_ERR(clk_port) == -EPROBE_DEFER)) { > > > > > > if (clk_gpio == ERR_PTR(-EPROBE_DEFER) || > > > clk_port == ERR_PTR(-EPROBE_DEFER)) { > > > > > > > Thanks for the suggestion. I will update it in next series. > > Before that, let's wait a moment to see if any more review comments. > > > > BTW, as I see kernel currently is widely using PTR_ERR(ptr) to compare > > -EPROBE_DEFER, I'm not quite get the point why the new approach you > > suggested is better, is it less error-prone? Or something else? > > would you please help clarify a bit more? > > See the discussion in > https://lore.kernel.org/patchwork/patch/999602/ > Thanks for sharing the info. It does help. Regards Dong Aisheng > Best regards > Uwe > > -- > Pengutronix e.K. | Uwe Kleine-König > | > Industrial Linux Solutions | > https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww. > pengutronix.de%2F&data=02%7C01%7Caisheng.dong%40nxp.com%7C06 > 5f26466899474bf61a08d638e4e308%7C686ea1d3bc2b4c6fa92cd99c5c3016 > 35%7C0%7C0%7C636758953039817883&sdata=hSgiadfyiFoK4AVTF2BR > guOU5H8C77%2BY2bdjViC4Sfw%3D&reserved=0 |
WARNING: multiple messages have this Message-ID (diff)
From: aisheng.dong@nxp.com (A.s. Dong) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH V2 4/8] gpio: vf610: add optional clock support Date: Tue, 23 Oct 2018 13:39:54 +0000 [thread overview] Message-ID: <AM0PR04MB4211BBD3A3D883320F8D06EB80F50@AM0PR04MB4211.eurprd04.prod.outlook.com> (raw) In-Reply-To: <20181023124137.wivishetiasdytfr@pengutronix.de> > -----Original Message----- > From: Uwe Kleine-K?nig [mailto:u.kleine-koenig at pengutronix.de] > Sent: Tuesday, October 23, 2018 8:42 PM > To: A.s. Dong <aisheng.dong@nxp.com> > Cc: Russell King - ARM Linux <linux@armlinux.org.uk>; dongas86 at gmail.com; > Linus Walleij <linus.walleij@linaro.org>; Stefan Agner <stefan@agner.ch>; > linux-gpio at vger.kernel.org; robh+dt at kernel.org; dl-linux-imx > <linux-imx@nxp.com>; kernel at pengutronix.de; Fabio Estevam > <fabio.estevam@nxp.com>; shawnguo at kernel.org; > linux-arm-kernel at lists.infradead.org > Subject: Re: [PATCH V2 4/8] gpio: vf610: add optional clock support > > On Tue, Oct 23, 2018 at 12:23:12PM +0000, A.s. Dong wrote: > > Hi Russell, > > > > > -----Original Message----- > > > From: Russell King - ARM Linux [mailto:linux at armlinux.org.uk] > > > Sent: Tuesday, October 23, 2018 8:04 PM > > [...] > > > On Tue, Oct 23, 2018 at 11:49:17AM +0000, A.s. Dong wrote: > > > > + clk_gpio = devm_clk_get(&pdev->dev, "gpio"); > > > > + clk_port = devm_clk_get(&pdev->dev, "port"); > > > > + if ((PTR_ERR(clk_gpio) == -EPROBE_DEFER) || > > > > + (PTR_ERR(clk_port) == -EPROBE_DEFER)) { > > > > > > if (clk_gpio == ERR_PTR(-EPROBE_DEFER) || > > > clk_port == ERR_PTR(-EPROBE_DEFER)) { > > > > > > > Thanks for the suggestion. I will update it in next series. > > Before that, let's wait a moment to see if any more review comments. > > > > BTW, as I see kernel currently is widely using PTR_ERR(ptr) to compare > > -EPROBE_DEFER, I'm not quite get the point why the new approach you > > suggested is better, is it less error-prone? Or something else? > > would you please help clarify a bit more? > > See the discussion in > https://lore.kernel.org/patchwork/patch/999602/ > Thanks for sharing the info. It does help. Regards Dong Aisheng > Best regards > Uwe > > -- > Pengutronix e.K. | Uwe Kleine-K?nig > | > Industrial Linux Solutions | > https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww. > pengutronix.de%2F&data=02%7C01%7Caisheng.dong%40nxp.com%7C06 > 5f26466899474bf61a08d638e4e308%7C686ea1d3bc2b4c6fa92cd99c5c3016 > 35%7C0%7C0%7C636758953039817883&sdata=hSgiadfyiFoK4AVTF2BR > guOU5H8C77%2BY2bdjViC4Sfw%3D&reserved=0 |
next prev parent reply other threads:[~2018-10-23 13:39 UTC|newest] Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-10-23 11:48 [PATCH V2 0/8] ARM: imx: add imx7ulp support A.s. Dong 2018-10-23 11:49 ` [PATCH V2 1/8] dt-bindings: fsl: add compatible for imx7ulp evk A.s. Dong 2018-10-23 11:49 ` A.s. Dong 2018-10-23 11:49 ` [PATCH V2 2/8] dt-bindings: fsl: add imx7ulp pm related components bindings A.s. Dong 2018-10-23 11:49 ` A.s. Dong 2018-10-24 21:54 ` Rob Herring 2018-10-24 21:54 ` Rob Herring 2018-10-23 11:49 ` [PATCH V2 3/8] dt-bindings: gpio: vf610: add optional clocks property A.s. Dong 2018-10-23 11:49 ` A.s. Dong 2018-10-24 21:55 ` Rob Herring 2018-10-24 21:55 ` Rob Herring 2018-10-23 11:49 ` [PATCH V2 4/8] gpio: vf610: add optional clock support A.s. Dong 2018-10-23 11:49 ` A.s. Dong 2018-10-23 12:04 ` Russell King - ARM Linux 2018-10-23 12:04 ` Russell King - ARM Linux 2018-10-23 12:23 ` A.s. Dong 2018-10-23 12:23 ` A.s. Dong 2018-10-23 12:41 ` Uwe Kleine-König 2018-10-23 12:41 ` Uwe Kleine-König 2018-10-23 13:39 ` A.s. Dong [this message] 2018-10-23 13:39 ` A.s. Dong 2018-10-25 17:58 ` Stefan Agner 2018-10-25 17:58 ` Stefan Agner 2018-10-26 3:49 ` A.s. Dong 2018-10-26 3:49 ` A.s. Dong 2018-10-26 8:15 ` Stefan Agner 2018-10-26 8:15 ` Stefan Agner 2018-10-30 15:34 ` A.s. Dong 2018-10-30 15:34 ` A.s. Dong 2018-10-23 11:49 ` [PATCH V2 5/8] ARM: imx: add initial support for imx7ulp A.s. Dong 2018-10-23 11:49 ` [PATCH V2 6/8] dts: imx: add common imx7ulp dtsi support A.s. Dong 2018-10-23 11:49 ` A.s. Dong 2018-10-24 22:02 ` Rob Herring 2018-10-24 22:02 ` Rob Herring 2018-10-25 11:53 ` A.s. Dong 2018-10-25 11:53 ` A.s. Dong 2018-10-25 16:44 ` Fabio Estevam 2018-10-25 16:44 ` Fabio Estevam 2018-10-25 16:54 ` A.s. Dong 2018-10-25 16:54 ` A.s. Dong 2018-10-23 11:49 ` [PATCH V2 7/8] dts: fsl: add imx7ulp evk support A.s. Dong 2018-10-23 11:49 ` A.s. Dong 2018-10-23 12:28 ` Fabio Estevam 2018-10-23 12:28 ` Fabio Estevam 2018-10-23 14:42 ` A.s. Dong 2018-10-23 14:42 ` A.s. Dong 2018-10-23 16:25 ` Fabio Estevam 2018-10-23 16:25 ` Fabio Estevam 2018-10-24 8:14 ` A.s. Dong 2018-10-24 8:14 ` A.s. Dong 2018-10-25 11:36 ` A.s. Dong 2018-10-25 11:36 ` A.s. Dong 2018-10-26 10:56 ` Sascha Hauer 2018-10-26 10:56 ` Sascha Hauer 2018-10-26 13:52 ` A.s. Dong 2018-10-26 13:52 ` A.s. Dong 2018-10-23 11:49 ` [PATCH V2 8/8] ARM: imx_v6_v7_defconfig: add imx7ulp support A.s. Dong
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