linux-kernel - Re: [PATCH v2 4/4] PCI: kirin: Convert to agnostic GPIO API

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Message-ID: <Zi9eve2brQvKwAKm@smile.fi.intel.com>
Date: Mon, 29 Apr 2024 11:47:57 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc: Frank Li <Frank.Li@....com>,
	Krzysztof Wilczyński <kwilczynski@...nel.org>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	linux-omap@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev, linux-amlogic@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org, linux-tegra@...r.kernel.org,
	Vignesh Raghavendra <vigneshr@...com>,
	Siddharth Vadapalli <s-vadapalli@...com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	Richard Zhu <hongxing.zhu@....com>,
	Lucas Stach <l.stach@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, Yue Wang <yue.wang@...ogic.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Kevin Hilman <khilman@...libre.com>,
	Jerome Brunet <jbrunet@...libre.com>,
	Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
	Xiaowei Song <songxiaowei@...ilicon.com>,
	Binghui Wang <wangbinghui@...ilicon.com>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Pali Rohár <pali@...nel.org>
Subject: Re: [PATCH v2 4/4] PCI: kirin: Convert to agnostic GPIO API

On Sat, Apr 27, 2024 at 12:53:35PM +0530, Manivannan Sadhasivam wrote:
> On Tue, Apr 23, 2024 at 08:19:07PM +0300, Andy Shevchenko wrote:
> > The of_gpio.h is going to be removed. In preparation of that convert
> > the driver to the agnostic API.

..

> > +		pcie->id_clkreq_gpio[i] = devm_gpiod_get_index(dev,
> > +							"hisilicon,clken", i,
> > +							GPIOD_ASIS);
> 
> Please don't use GPIOD_ASIS even if the old code was using it.
> 
> For all 3 GPIOs in this driver, GPIOD_OUT_LOW flag should be used as the default
> state is assert (considering the fact that the DT uses GPIO_ACTIVE_HIGH).

And if not? I believe we may not assume that all of DTBs around the globe put
the flags correctly. But I think you know much more about them than me, hence
I am okay to update this.

-- 
With Best Regards,
Andy Shevchenko