linux-kernel - Re: [PATCH v3 18/25] drm/panel: Add Bananapi S070WV20-CT16 ICN6211 MIPI-DSI to RGB bridge

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Message-ID: <20181029093306.ysyfgnrozbo2ywcu@flea>
Date:   Mon, 29 Oct 2018 10:33:06 +0100
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Jagan Teki <jagan@...rulasolutions.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, Icenowy Zheng <icenowy@...c.io>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org,
        Michael Trimarchi <michael@...rulasolutions.com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH v3 18/25] drm/panel: Add Bananapi S070WV20-CT16 ICN6211
 MIPI-DSI to RGB bridge

On Fri, Oct 26, 2018 at 08:13:37PM +0530, Jagan Teki wrote:
> Bananapi S070WV20-CT16 ICN6211 is 800x480, 4-lane MIPI-DSI to RGB bridge
> panel which can be used to connect via DSI port on BPI-M64 board,
> so add a driver for it.
> 
> The same panel PCB comes with parallel RBG which is supported via
> panel-simple driver with "bananapi,s070wv20-ct16" compatible.
> 
> BSP dclock of 30MHz is not working with existing sunxi-ng and sun4i
> sun4i_dclk_recalc, so updated to 55MHz can result proper working
> nkm dividers.
> 
> dclock, 30MHz => PLL_MIPI, 300MHz => set rate 440MHz with 1,2,1 nkm
> dclock, 55MHz => PLL_MIPI, 300MHz => set rate 330MHz with 5,2,9 nkm

That panel is generic, you don't need those details in your commit log.

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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