linux-kernel - Re: [PATCH v2 2/4] dt-bindings: display/msm/gmu: Document RGMU

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Message-ID: <e2ae139a-0285-455a-a2b1-520deeeacc0b@quicinc.com>
Date: Fri, 13 Dec 2024 19:07:14 +0530
From: Akhil P Oommen <quic_akhilpo@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Rob Clark
	<robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        Konrad Dybcio
	<konradybcio@...nel.org>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        "Dmitry
 Baryshkov" <dmitry.baryshkov@...aro.org>,
        Marijn Suijten
	<marijn.suijten@...ainline.org>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Rob Herring <robh@...nel.org>,
        "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Bjorn
 Andersson" <andersson@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <20241104-add_initial_support_for_qcs615-v5-4-9dde8d7b80b0@...cinc.com>,
        <20241022-qcs615-clock-driver-v4-3-3d716ad0d987@...cinc.com>,
        <20240924143958.25-2-quic_rlaggysh@...cinc.com>,
        <20241108-qcs615-mm-clockcontroller-v3-7-7d3b2d235fdf@...cinc.com>,
        <20241108-qcs615-mm-dt-nodes-v1-1-b2669cac0624@...cinc.com>,
        <20241122074922.28153-1-quic_qqzhou@...cinc.com>
Subject: Re: [PATCH v2 2/4] dt-bindings: display/msm/gmu: Document RGMU

On 12/13/2024 4:23 PM, Konrad Dybcio wrote:
> On 13.12.2024 11:35 AM, Akhil P Oommen wrote:
>> RGMU a.k.a Reduced Graphics Management Unit is a small state machine
>> with the sole purpose of providing IFPC support. Compared to GMU, it
>> doesn't manage GPU clock, voltage scaling, bw voting or any other
>> functionalities. All it does is detect an idle GPU and toggle the
>> GDSC switch. So it doesn't require iommu & opp table.
>>
>> Signed-off-by: Akhil P Oommen <quic_akhilpo@...cinc.com>
>> ---
> 
> The bindings file exists so that people that are not in the know, can
> reference it and learn about the hardware. Please spell out IFPC, as
> that's a non-obvious, hw-specific  acronym.
> 
> Otherwise looks ok

Ah right. Krzysztof schooled me that a while ago.
Will update.

-Akhil.

> 
> Konrad