linux-kernel - Re: [PATCH 1/5] phy: qcom: qmp-pcie: Skip PHY reset if already up

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Message-ID: <3h7xe2k7iis4mmowvcq5mghneyyk64epcs2hg7fjrpowl6omfu@ltf6vi6mtx36>
Date: Fri, 9 Jan 2026 11:23:03 +0200
From: Abel Vesa <abel.vesa@....qualcomm.com>
To: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
Cc: Vinod Koul <vkoul@...nel.org>, Neil Armstrong <neil.armstrong@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Jingoo Han <jingoohan1@...il.com>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kwilczynski@...nel.org>,
        Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH 1/5] phy: qcom: qmp-pcie: Skip PHY reset if already up

On 26-01-09 12:51:06, Krishna Chaitanya Chundru wrote:
> If the bootloader has already powered up the PCIe PHY, doing a full
> reset and waiting for it to come up again slows down boot time.
> 
> Add a check for PHY status and skip the reset steps when the PHY is
> already active. In this case, only enable the required resources during
> power-on. This works alongside the existing logic that skips the init
> sequence.
> 
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>

Reviewed-by: Abel Vesa <abel.vesa@....qualcomm.com>