linux-kernel - Re: [PATCH v1] arm64: dts: qcom: sc7280: Update lpassaudio clock controller for resets

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Date:   Thu, 7 Jul 2022 12:36:59 +0530
From:   Taniya Das <quic_tdas@...cinc.com>
To:     Stephen Boyd <swboyd@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>
CC:     Rob Herring <robh+dt@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Douglas Anderson <dianders@...omium.org>,
        "Andy Gross" <agross@...nel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1] arm64: dts: qcom: sc7280: Update lpassaudio clock
 controller for resets


Hi Stephen,

On 6/15/2022 2:08 AM, Stephen Boyd wrote:
> Quoting Matthias Kaehlcke (2022-06-14 09:51:57)
>> On Tue, Jun 14, 2022 at 09:41:18PM +0530, Taniya Das wrote:
>>> The lpass audio supports TX/RX/WSA block resets. The LPASS PIL clock
>>> driver is not supported and mark it disabled. Also to keep consistency
>>> update lpasscore to lpass_core.
>>
>> There is a driver for "qcom,sc7280-lpasscc", what does it mean that is
>> isn't supported?
>>
>> IIUC one problem is that 'lpasscc@...0000' and 'lpass_aon / clock-controller@...0000'
>> have overlapping register ranges, so they can't be used together.
>>
>> You could just say 'Disable the LPASS PIL clock by default, boards
>> can enable it if needed'.
> 
> For the pinctrl driver we added a "qcom,adsp-bypass-mode" property[1] to
> indicate that the ADSP was being bypassed or not. Can we do the same
> here and combine the device nodes that have overlapping reg properties?
> 
> [1] https://lore.kernel.org/r/1654921357-16400-2-git-send-email-quic_srivasam@quicinc.com

Could we take up as a cleanup and take it forward:
https://lore.kernel.org/lkml/20220614153306.29339-1-quic_tdas@quicinc.com/T/#t

-- 
Thanks & Regards,
Taniya Das.