linux-kernel - Re: omap4: support for manually updated display

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Date:   Mon, 22 Oct 2018 11:14:07 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...com>
To:     Tony Lindgren <tony@...mide.com>,
        Sebastian Reichel <sre@...nel.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
CC:     Pavel Machek <pavel@....cz>, <dri-devel@...ts.freedesktop.org>,
        <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        <linux-omap@...r.kernel.org>, <nekit1000@...il.com>,
        <mpartap@....net>, <merlijn@...zup.org>
Subject: Re: omap4: support for manually updated display

On 20/10/18 03:38, Tony Lindgren wrote:
> * Sebastian Reichel <sre@...nel.org> [181019 15:58]:
>> I uploaded my current status here. It's not based on the newest
>> -next, but contains the interesting patches from Laurent. Also
>> the last few patches are not yet cleaned up, sorry for the mess.
> 
> Way to go, thanks :) Here's a quick fix for issues with loading
> and unloading modules, seems like this should be fixed somewhere
> else though?

I didn't get that far on drm-next with pandaboard. When loading modules, dsi_probe crashes. It is missing runtime_get(). But after adding runtime_get call, it fails and I see:

[   44.671081] omap_hwmod: dss_dsi2: _wait_target_ready failed: -16
[   44.677459] omapdss_dsi 58005000.encoder: use pm_runtime_put_sync_suspend() in driver?

Why is dsi2 busy (and what does it even mean)...

 Tomi

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