linux-kernel - Re: [PATCH v3 4/5] PCI: imx6: Convert to agnostic GPIO API

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Date: Mon, 6 May 2024 14:10:24 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 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 v3 4/5] PCI: imx6: Convert to agnostic GPIO API

On Mon, Apr 29, 2024 at 12:25 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:

> The of_gpio.h is going to be removed. In preparation of that convert
> the driver to the agnostic API.
>
> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> Reviewed-by: Frank Li <Frank.Li@....com>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

I think there is a bug here, the code is respecting the OF property
"reset-gpio-active-high"
but the code in drivers/gpio/gpiolib-of.h actually has a quirk for
this so you can just
delete all the active high handling and rely on 1 = asserted and 0 =
deasserted when
using GPIO descriptors.

Just delete this thing:
imx6_pcie->gpio_active_high = of_property_read_bool(node,
                                           "reset-gpio-active-high");

Yours,
Linus Walleij