linux-kernel - Re: [PATCH V6] PCI: qcom: Fix broken pcie enumeration for 2_3

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Date:   Tue, 19 Sep 2023 14:49:51 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Manivannan Sadhasivam <mani@...nel.org>
Cc:     Sricharan Ramabadhran <quic_srichara@...cinc.com>,
        agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        robh@...nel.org, lpieralisi@...nel.org, bhelgaas@...gle.com,
        kw@...ux.com, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        dmitry.baryshkov@...aro.org, stable@...r.kernel.org,
        robimarko@...il.com
Subject: Re: [PATCH V6] PCI: qcom: Fix broken pcie enumeration for 2_3_3
 configs ops

On Tue, Sep 19, 2023 at 02:19:09PM +0200, Manivannan Sadhasivam wrote:
> On Tue, Sep 19, 2023 at 03:59:48PM +0530, Sricharan Ramabadhran wrote:
> > PARF_SLV_ADDR_SPACE_SIZE_2_3_3 macro is used for qcom_pcie_post_init_2_3_3.
> > PCIe slave address space size register offset is 0x358, but was wrongly
> > changed to 0x16c as a part of commit 39171b33f652 ("PCI: qcom: Remove
> > PCIE20_ prefix from register definitions"). Fixing it, by using the right
> > macro and remove the unused PARF_SLV_ADDR_SPACE_SIZE_2_3_3.
> > 
> > Without this access to the registers of slave addr space like iATU etc
> > are broken leading to PCIe enumeration failure on IPQ8074.
> > 
> > Fixes: 39171b33f652 ("PCI: qcom: Remove PCIE20_ prefix from register definitions")
> > Cc: <Stable@...r.kernel.org>
> 
> Please fix the stable list address: stable@...r.kernel.org

Either works!