linux-kernel - Re: [PATCH v3 2/5] clk: sunxi-ng: a64: Set minimum and maximum rate for PLL-MIPI

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Date: Mon, 04 Mar 2024 10:06:57 +0000
From: "Maxime Ripard" <mripard@...nel.org>
To: "Frank Oltmanns" <frank@...manns.dev>
Cc: devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org, linux-sunxi@...ts.linux.dev, stable@...r.kernel.org, "Chen-Yu
 Tsai" <wens@...e.org>, "Conor Dooley" <conor+dt@...nel.org>, "Daniel Vetter" <daniel@...ll.ch>, "David
 Airlie" <airlied@...il.com>, "Diego Roversi" <diegor@...cali.it>,
 Guido Günther <agx@...xcpu.org>, "Jernej Skrabec" <jernej.skrabec@...il.com>, "Jessica
 Zhang" <quic_jesszhan@...cinc.com>, "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>, "Maarten
 Lankhorst" <maarten.lankhorst@...ux.intel.com>, "Maxime Ripard" <mripard@...nel.org>, "Michael
 Turquette" <mturquette@...libre.com>, "Neil Armstrong" <neil.armstrong@...aro.org>, "Ondrej
 Jirman" <megi@....cz>, "Purism Kernel Team" <kernel@...i.sm>, "Rob Herring" <robh+dt@...nel.org>, "Sam
 Ravnborg" <sam@...nborg.org>, "Samuel Holland" <samuel@...lland.org>, "Stephen
 Boyd" <sboyd@...nel.org>, "Thomas Zimmermann" <tzimmermann@...e.de>
Subject: Re: [PATCH v3 2/5] clk: sunxi-ng: a64: Set minimum and maximum rate
 for PLL-MIPI

On Mon, 4 Mar 2024 08:29:18 +0100, Frank Oltmanns wrote:
> When the Allwinner A64's TCON0 searches the ideal rate for the connected
> panel, it may happen that it requests a rate from its parent PLL-MIPI
> which PLL-MIPI does not support.
> 
> This happens for example on the Olimex TERES-I laptop where TCON0
> 
> [ ... ]

Reviewed-by: Maxime Ripard <mripard@...nel.org>

Thanks!
Maxime