linux-kernel - Re: Re: [PATCH v2 2/2] drm: bridge: adv7511: Add support for ADV7535

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <d8470738b044d6559aa8e7b07f8d50ce6791f980.camel@analog.com>
Date:   Wed, 27 Nov 2019 14:22:00 +0000
From:   "Togorean, Bogdan" <Bogdan.Togorean@...log.com>
To:     "frieder.schrempf@...tron.de" <frieder.schrempf@...tron.de>
CC:     "Laurent.pinchart@...asonboard.com" 
        <Laurent.pinchart@...asonboard.com>,
        "a.hajda@...sung.com" <a.hajda@...sung.com>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "sam@...nborg.org" <sam@...nborg.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "allison@...utok.net" <allison@...utok.net>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "matt.redfearn@...nci.com" <matt.redfearn@...nci.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "daniel@...ll.ch" <daniel@...ll.ch>
Subject: Re: Re: [PATCH v2 2/2] drm: bridge: adv7511: Add support for ADV7535

Hi Frieder,

I'm glad to find there are other persons interested in this driver and
especially support for ADV7535. Unfortunately I had to put on hold the
development due to other activities but I'll send V3 tomorrow.

I also started work on HDCP support for this driver and hope to send
soon a patch for that.

Best regards,
Bogdan 

On Wed, 2019-11-27 at 11:52 +0000, Schrempf Frieder wrote:
> [External]
> 
> Hi Bogdan,
> 
> On 21.08.19 07:34, Togorean, Bogdan wrote:
> > On Tue, 2019-08-20 at 10:53 +0200, Daniel Vetter wrote:
> > > [External]
> > > 
> > > On Mon, Aug 19, 2019 at 12:46:16PM +0200, Sam Ravnborg wrote:
> > > > Hi Bogdan.
> > > > 
> > > > > > >   		adv7533_detach_dsi(adv7511);
> > > > > > >   	i2c_unregister_device(adv7511->i2c_cec);
> > > > > > >   	if (adv7511->cec_clk)
> > > > > > > @@ -1266,8 +1278,9 @@ static const struct i2c_device_id
> > > > > > > adv7511_i2c_ids[] = {
> > > > > > >   	{ "adv7511", ADV7511 },
> > > > > > >   	{ "adv7511w", ADV7511 },
> > > > > > >   	{ "adv7513", ADV7511 },
> > > > > > > -#ifdef CONFIG_DRM_I2C_ADV7533
> > > > > > > +#ifdef CONFIG_DRM_I2C_ADV753x
> > > > > > >   	{ "adv7533", ADV7533 },
> > > > > > > +	{ "adv7535", ADV7535 },
> > > > > > >   #endif
> > > > > > 
> > > > > > This ifdef may not be needed??
> > > > > > If we did not get this type we will not look it up.
> > > > > But if we have defined in DT adv7533/5 device but
> > > > > CONFIG_DRM_I2C_ADV753x not selected probe will fail with
> > > > > ENODEV.
> > > > > That
> > > > > would be ok?
> > > > 
> > > > What do we gain from this complexity in the end.
> > > > Why not let the driver always support all variants.
> > > > 
> > > > If this result in a simpler driver, and less choices in Kconfig
> > > > then it is a win-win.
> > > 
> > > Yeah in general we don't Kconfig within drivers in drm to disable
> > > specific
> > > code-paths. It's not worth the pain.
>  >
> > Ack,
> > Thank you for clarification. Will remove in V3.
> 
> Are you still working on this? Do you plan to send a v3?
> I will soon lay my hands on a board with the ADV7535 and would like
> to 
> see this merged.
> Also for patch 1/2, it seems you already have a R-b for v1 from
> Laurent, 
> but you didn't carry the tag to v2.
> 
> Thanks,
> Frieder