linux-kernel - Re: [PATCH] drm/omap: Migrate minimum FCK/PCK ratio from Kconfig to dts

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Message-Id: <F3335195-6EB7-4D44-B884-2F29D9238011@goldelico.com>
Date:   Mon, 30 Sep 2019 15:38:51 +0200
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Tero Kristo <t-kristo@...com>
Cc:     Tomi Valkeinen <tomi.valkeinen@...com>,
        Adam Ford <aford173@...il.com>,
        Tony Lindgren <tony@...mide.com>,
        Linux-OMAP <linux-omap@...r.kernel.org>,
        Adam Ford <adam.ford@...icpd.com>,
        Benoît Cousson <bcousson@...libre.com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/omap: Migrate minimum FCK/PCK ratio from Kconfig to dts


> Am 30.09.2019 um 10:53 schrieb Tero Kristo <t-kristo@...com>:
> 
> The best action here is probably to drop the max-div value for this clock to 16. Can someone check this with their display setup and see what happens? Attached patch should do the trick.

I have checked on GTA04 and OpenPandora (DM3730 resp. OMAP3430) and did not notice a negative effect.

(Well, we never see the problem that is discussed here and have built with CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0).

BR,
Nikolaus