linux-kernel - Re: [RFC PATCH v5 9/9] arm64: tegra: Add Tegra VI CSI support in device tree

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Date:   Tue, 24 Mar 2020 17:01:11 -0700
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     Dmitry Osipenko <digetx@...il.com>, <thierry.reding@...il.com>,
        <jonathanh@...dia.com>, <frankc@...dia.com>, <hverkuil@...all.nl>,
        <helen.koike@...labora.com>
CC:     <sboyd@...nel.org>, <linux-media@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH v5 9/9] arm64: tegra: Add Tegra VI CSI support in
 device tree


On 3/24/20 3:48 PM, Dmitry Osipenko wrote:
> External email: Use caution opening links or attachments
>
>
> 25.03.2020 00:04, Sowjanya Komatineni пишет:
>> On 3/24/20 12:19 PM, Dmitry Osipenko wrote:
>>> External email: Use caution opening links or attachments
>>>
>>>
>>> 23.03.2020 20:52, Sowjanya Komatineni пишет:
>>> ...
>>>> +                     pd_venc: venc {
>>>> +                             clocks = <&tegra_car TEGRA210_CLK_VI>,
>>>> +                                      <&tegra_car TEGRA210_CLK_CSI>;
>>>> +                             resets = <&mc TEGRA210_MC_RESET_VI>,
>>> The MC resetting should be needed only for a hardware hot-resetting. It
>>> should be wrong to add it to the power domain.
>> TRM recommends to do MC client hot-reset during VE power gate and ungate.
> Could you please tell what TRM it is and what's the page#?
Tegra TX1 TRM Page 425, Section 12.2.7.14 Procedures for VE Power Domains