linux-kernel - Re: [PATCH v4 2/2] PCI: mediatek-gen3: Add power and reset control feature for downstream component

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Message-ID: <f22e773c-4ec4-4b46-93c5-2f0818123c21@collabora.com>
Date:   Mon, 6 Nov 2023 09:23:55 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Jian Yang <jian.yang@...iatek.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Rob Herring <robh@...nel.org>,
        Jianjun Wang <jianjun.wang@...iatek.com>
Cc:     linux-pci@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        Chuanjia.Liu@...iatek.com, Jieyy.Yang@...iatek.com,
        Qizhong.Cheng@...iatek.com, Jianguo.Zhang@...iatek.com
Subject: Re: [PATCH v4 2/2] PCI: mediatek-gen3: Add power and reset control
 feature for downstream component

Il 06/11/23 07:12, Jian Yang ha scritto:
> From: "jian.yang" <jian.yang@...iatek.com>
> 
> Make MediaTek's controller driver capable of controlling power
> supplies and reset pin of a downstream component in power-on and
> power-off process.
> 
> Some downstream components (e.g., a WIFI chip) may need an extra
> reset other than PERST# and their power supplies, depending on
> the requirements of platform, may need to controlled by their
> parent's driver. To meet the requirements described above, I add this
> feature to MediaTek's PCIe controller driver as an optional feature.
> 
> Signed-off-by: jian.yang <jian.yang@...iatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>