linux-kernel - Re: [PATCH v12 06/10] PCI: brcmstb: Add control of rescal reset

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Message-ID: <20200916152614.GA3995498@bogus>
Date:   Wed, 16 Sep 2020 09:26:14 -0600
From:   Rob Herring <robh@...nel.org>
To:     Jim Quinlan <james.quinlan@...adcom.com>
Cc:     linux-pci@...r.kernel.org,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Christoph Hellwig <hch@....de>,
        Robin Murphy <robin.murphy@....com>,
        bcm-kernel-feedback-list@...adcom.com,
        Jim Quinlan <jquinlan@...adcom.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" 
        <linux-rpi-kernel@...ts.infradead.org>,
        "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v12 06/10] PCI: brcmstb: Add control of rescal reset

On Fri, Sep 11, 2020 at 01:52:26PM -0400, Jim Quinlan wrote:
> From: Jim Quinlan <jquinlan@...adcom.com>
> 
> Some STB chips have a special purpose reset controller named RESCAL (reset
> calibration).  The PCIe HW can now control RESCAL to start and stop its
> operation.  On probe(), the RESCAL is deasserted and the driver goes
> through the sequence of setting registers and reading status in order to
> start the internal PHY that is required for the PCIe.
> 
> Signed-off-by: Jim Quinlan <jquinlan@...adcom.com>
> Acked-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>  drivers/pci/controller/pcie-brcmstb.c | 69 ++++++++++++++++++++++++++-
>  1 file changed, 68 insertions(+), 1 deletion(-)

Reviewed-by: Rob Herring <robh@...nel.org>