linux-kernel - Re: [PATCH v2 3/4] PCI: imx6: Convert to agnostic GPIO API

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Message-ID: <CAOMZO5CTiXWMXgi35c4M4XsdZ26-QiArXcBcViYnwTAgd00nDQ@mail.gmail.com>
Date: Tue, 23 Apr 2024 17:22:25 -0300
From: Fabio Estevam <festevam@...il.com>
To: Frank Li <Frank.li@....com>
Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
	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>, 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 3/4] PCI: imx6: Convert to agnostic GPIO API

On Tue, Apr 23, 2024 at 5:16 PM Frank Li <Frank.li@....com> wrote:

> if (IS_ERR(imx6_pcie->reset_gpiod)) should be true. then dev_err_probe()
> will run and print "unable to get reset gpio\n" with error code
> -EPROBE_DEFER.

dev_err_probe() will not print an error message when the error code is
-EPROBE_DEFER.

That's exactly the point of using dev_err_probe().