linux-kernel - Re: [PATCH 3/9] PCI: imx6: Simplify reset handling by using by using *_FLAG_HAS_*

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Message-ID: <95ef7a9fa76bf3d6fd17c9fbf00d7d561883765c.camel@pengutronix.de>
Date:   Fri, 08 Dec 2023 12:49:05 +0100
From:   Philipp Zabel <p.zabel@...gutronix.de>
To:     Frank Li <Frank.li@....com>
Cc:     imx@...ts.linux.dev, Richard Zhu <hongxing.zhu@....com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        "open list:PCI DRIVER FOR IMX6" <linux-pci@...r.kernel.org>,
        "moderated list:PCI DRIVER FOR IMX6" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/9] PCI: imx6: Simplify reset handling by using by
 using *_FLAG_HAS_*_RESET

On Do, 2023-12-07 at 12:10 -0500, Frank Li wrote:
> On Wed, Dec 06, 2023 at 05:52:23PM +0100, Philipp Zabel wrote:
[...]
> > I wonder whether we should just defer the check whether apps/pciephy
> > resets should be used to the device tree validation, and make this an
> > unconditional call to get an optional reset control:
> > 
> > 	imx6_pcie->apps_reset = devm_reset_control_get_optional_exclusive(dev, "apps");
> 
> I think double check here is neccesary. No sure if dts file version
> binding yaml was exactly matched driver. Sometime user use old version dts. 
> Double check here will help identify the dts problem. 

Makes sense to me,

Reviewed-by: Philipp Zabel <p.zabel@...gutronix.de>

regards
Philipp