linux-kernel - Re: [PATCH v6 16/17] qcom: llcc/edac: Support polling mode for ECC handling

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Date:   Fri, 20 Jan 2023 20:04:33 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     andersson@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, tony.luck@...el.com,
        quic_saipraka@...cinc.com, konrad.dybcio@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        james.morse@....com, mchehab@...nel.org, rric@...nel.org,
        linux-edac@...r.kernel.org, quic_ppareek@...cinc.com,
        luca.weiss@...rphone.com, ahalaney@...hat.com, steev@...i.org
Subject: Re: [PATCH v6 16/17] qcom: llcc/edac: Support polling mode for ECC
 handling

On Wed, Jan 18, 2023 at 08:39:03PM +0530, Manivannan Sadhasivam wrote:
> Not all Qcom platforms support IRQ mode for ECC handling. For those
> platforms, the current EDAC driver will not be probed due to missing ECC
> IRQ in devicetree.
> 
> So add support for polling mode so that the EDAC driver can be used on all
> Qcom platforms supporting LLCC.
> 
> The polling delay of 5000ms is chosen based on Qcom downstream/vendor
> driver.
> 
> Reported-by: Luca Weiss <luca.weiss@...rphone.com>
> Tested-by: Luca Weiss <luca.weiss@...rphone.com>
> Tested-by: Steev Klimaszewski <steev@...i.org> # Thinkpad X13s
> Tested-by: Andrew Halaney <ahalaney@...hat.com> # sa8540p-ride
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> ---
>  drivers/edac/qcom_edac.c     | 50 +++++++++++++++++++++---------------
>  drivers/soc/qcom/llcc-qcom.c | 13 +++++-----
>  2 files changed, 35 insertions(+), 28 deletions(-)

Reviewed-by: Borislav Petkov (AMD) <bp@...en8.de>

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette