linux-kernel - Re: [PATCH] [media] solo6x10: fix detection of TW2864B chips

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Message-ID: <20170701151814.GA31746@dell-m4800>
Date:   Sat, 1 Jul 2017 16:18:15 +0100
From:   Andrey Utkin <andrey_utkin@...tmail.com>
To:     Anton Sviridenko <anton@...p.bluecherry.net>
Cc:     Bluecherry Maintainers <maintainers@...echerrydvr.com>,
        Andrey Utkin <andrey.utkin@...p.bluecherry.net>,
        Ismael Luceno <ismael@...ev.co.uk>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [media] solo6x10: fix detection of TW2864B chips

On Sat, Jul 01, 2017 at 03:26:01PM +0400, Anton Sviridenko wrote:
> This patch enables support for non-Bluecherry labeled solo6110
> based PCI cards which have 3 x TW2864B chips and one TW2865.
> These cards are displayed by lspci -nn as
> 
> "Softlogic Co., Ltd. SOLO6110 H.264 Video encoder/decoder [9413:6110]"
> 
> Bluecherry cards have 4 x TW2864A. According to datasheet register 0xFF
> of TW2864B chips contains value 0x6A or 0x6B depending on revision 
> which being shifted 3 bits right gives value 0x0d.
> Existing version of solo6x10 fails on these cards with
> 
> [276582.344942] solo6x10 0000:07:00.0: Probing Softlogic 6110
> [276582.402151] solo6x10 0000:07:00.0: Could not initialize any techwell chips
> [276582.402781] solo6x10: probe of 0000:07:00.0 failed with error -22
> 
> Signed-off-by: Anton Sviridenko <anton@...p.bluecherry.net>

Acked-by: Andrey Utkin <andrey_utkin@...tmail.com>

I have looked into same case long time ago, just haven't managed to
conclude.