linux-kernel - Re: [PATCH v9 5/8] PCI: imx6: Refine the regulator usage

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Message-ID: <20220608185453.GA410841@bhelgaas>
Date:   Wed, 8 Jun 2022 13:54:53 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Richard Zhu <hongxing.zhu@....com>
Cc:     l.stach@...gutronix.de, bhelgaas@...gle.com, robh+dt@...nel.org,
        broonie@...nel.org, lorenzo.pieralisi@....com,
        jingoohan1@...il.com, festevam@...il.com,
        francesco.dolcini@...adex.com, linux-pci@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de, linux-imx@....com
Subject: Re: [PATCH v9 5/8] PCI: imx6: Refine the regulator usage

On Fri, May 06, 2022 at 09:47:06AM +0800, Richard Zhu wrote:
> The driver should undo any enables it did itself. The regulator disable
> shouldn't be basing decisions on regulator_is_enabled().
> 
> To keep the balance of the regulator usage counter, disable the regulator
> just behind of imx6_pcie_assert_core_reset() in resume and shutdown.

In subject, "Refine" doesn't tell me anything about what's happening
here.