linux-kernel - Re: [PATCH v2 01/27] clk: sunxi-ng: r40: Add minimal rate for video PLLs

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Message-ID: <CAGb2v66rUqqUrqmq09hHcGHF1buZieYmu1zOkUXZyyQPtyUZew@mail.gmail.com>
Date:   Wed, 13 Jun 2018 11:18:45 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Jernej Skrabec <jernej.skrabec@...l.net>
Cc:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        Mark Rutland <mark.rutland@....com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [PATCH v2 01/27] clk: sunxi-ng: r40: Add minimal rate for video PLLs

On Wed, Jun 13, 2018 at 4:00 AM, Jernej Skrabec <jernej.skrabec@...l.net> wrote:
> According to documentation and experience with other similar SoCs, video
> PLLs don't work stable if their output frequency is set below 192 MHz.
>
> Because of that, set minimal rate to both R40 video PLLs to 192 MHz.
>
> Signed-off-by: Jernej Skrabec <jernej.skrabec@...l.net>

Reviewed-by: Chen-Yu Tsai <wens@...e.org>