linux-kernel - Re: [PATCH] CHROMIUM: drm: bridge/dw_hdmi: Eliminate unused cable

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Message-ID: <20150921141541.GO21084@n2100.arm.linux.org.uk>
Date:	Mon, 21 Sep 2015 15:15:41 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Thierry Reding <treding@...dia.com>
Cc:	Douglas Anderson <dianders@...omium.org>, airlied@...ux.ie,
	fabio.estevam@...escale.com, ykk@...k-chips.com,
	p.zabel@...gutronix.de, andy.yan@...k-chips.com,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] CHROMIUM: drm: bridge/dw_hdmi: Eliminate unused
 cable_plugin

On Mon, Sep 21, 2015 at 11:51:06AM +0200, Thierry Reding wrote:
> On Wed, Sep 16, 2015 at 01:41:38PM -0700, Douglas Anderson wrote:
> > There's a member in 'struct dw_hdmi' called cable_plugin.  It's never
> > set to anything anywhere so thus is always false.  There's a bit of code
> > checking it, but since it's always false this must be dead code.
> > Eliminate it.
> > 
> > Note: if someone wants to figure out the intention of the original code
> > and implement whatever feature / fix was needed then we can drop this
> > patch.  The 'cable_plugin' member has been unused since the code was
> > first added in (9aaf880 imx-drm: Add mx6 hdmi transmitter support).
> > 
> > Signed-off-by: Douglas Anderson <dianders@...omium.org>
> > ---
> >  drivers/gpu/drm/bridge/dw_hdmi.c | 9 ---------
> >  1 file changed, 9 deletions(-)
> 
> Except for the CHROMIUM: prefix this looks good to me:
> 
> Reviewed-by: Thierry Reding <treding@...dia.com>
> 
> Russell, do you have patches to this driver queued for v4.4 and plan to
> pick this up into your tree or should I take it?

My current patch stack for imx-drm related stuff looks like this at
present:

drm: bridge/dw_hdmi: place PHY into low power mode when disabled
drm: bridge/dw_hdmi: start of support for pixel doubled modes
drm: bridge/dw_hdmi: remove CEC engine register definitions
drm: bridge/dw_hdmi-cec: add Designware HDMI CEC driver
cec: add HDMI CEC input driver
cec: add HDMI CEC core driver
drm: bridge/dw_hdmi: replace CTS calculation for the ACR
drm: bridge/dw_hdmi: remove ratio support from ACR code
drm: bridge/dw_hdmi: adjust pixel clock values in N calculation
drm: bridge/dw_hdmi: avoid being recursive in N calculation
drm: bridge/dw_hdmi-ahb-audio: allow larger buffer sizes
drm: bridge/dw_hdmi-ahb-audio: basic support for multi-channel PCM audio
drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver
drm: bridge/dw_hdmi-ahb-audio: add audio driver
drm: bridge/dw_hdmi: improve HDMI enable/disable handling
drm: bridge/dw_hdmi: add connector mode forcing
drm: bridge/dw_hdmi: add support for interlaced video modes
gpu: imx: fix support for interlaced modes
gpu: imx: simplify sync polarity setting

I haven't yet decided what, if anything, from that stack I'm going to
try to get into the next merge window.  Given the lack of interest last
time I posted these patches, I'm loosing interest myself in trying to
get them merged, especially ones which are getting on for being 2 years
old.

-- 
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according to speedtest.net.
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