linux-kernel - Re: [PATCH v4 00/10] Introduce new mode validation callbacks

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Date:   Wed, 24 May 2017 14:12:59 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Jose Abreu <Jose.Abreu@...opsys.com>
Cc:     Daniel Vetter <daniel@...ll.ch>, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        Carlos Palminha <CARLOS.PALMINHA@...opsys.com>,
        Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
        Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>, Dave Airlie <airlied@...ux.ie>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Archit Taneja <architt@...eaurora.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: Re: [PATCH v4 00/10] Introduce new mode validation callbacks

On Tue, May 23, 2017 at 03:40:24PM +0100, Jose Abreu wrote:
> Hi Daniel,
> 
> 
> On 22-05-2017 16:31, Daniel Vetter wrote:
> > On Mon, May 22, 2017 at 09:56:00AM +0200, Daniel Vetter wrote:
> >> On Fri, May 19, 2017 at 01:52:09AM +0100, Jose Abreu wrote:
> >>> This series is a follow up from the discussion at [1]. We start by
> >>> introducing crtc->mode_valid(), encoder->mode_valid() and
> >>> bridge->mode_valid() callbacks which will be used in followup
> >>> patches and also by cleaning the documentation a little bit. This
> >>> patch is available at [2] and the series depends on it.
> >>>
> >>> We proceed by introducing new helpers to call this new callbacks
> >>> at 1/10.
> >>>
> >>> At 2/10 a helper function is introduced that calls all mode_valid()
> >>> from a set of bridges.
> >>>
> >>> Next, at 3/10 we modify the connector probe helper so that only modes
> >>> which are supported by a given bridge+encoder+crtc combination are
> >>> probbed.
> >>>
> >>> At 4/10 we call all the mode_valid() callbacks for a given pipeline,
> >>> except the connector->mode_valid one, so that the mode is validated.
> >>> This is done before calling mode_fixup().
> >>>
> >>> Finally, from 5/10 to 10/10 we use the new callbacks in drivers that
> >>> can implement it.
> >>>
> >>> [1] https://urldefense.proofpoint.com/v2/url?u=https-3A__patchwork.kernel.org_patch_9702233_&d=DwIBAg&c=DPL6_X_6JkXFx7AXWqB0tg&r=WHDsc6kcWAl4i96Vm5hJ_19IJiuxx_p_Rzo2g-uHDKw&m=YohmJizS2YWha2kjTAHGImBe-ghyCyY_4jKYalIhqcU&s=mtXW7k5AwOp9H790Zg-U0ZB_OXCyW-SRQD9H5kTX5Ec&e= 
> >>> [2] https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.freedesktop.org_archives_dri-2Ddevel_2017-2DMay_141761.html&d=DwIBAg&c=DPL6_X_6JkXFx7AXWqB0tg&r=WHDsc6kcWAl4i96Vm5hJ_19IJiuxx_p_Rzo2g-uHDKw&m=YohmJizS2YWha2kjTAHGImBe-ghyCyY_4jKYalIhqcU&s=N3-YUnWxQAD9jw0y7xFB0fAuCGa_B6Q6yRsL2OmGWM0&e= 
> >>>
> >>> Jose Abreu (10):
> >>>   drm: Add drm_{crtc/encoder/connector}_mode_valid()
> >>>   drm: Introduce drm_bridge_mode_valid()
> >>>   drm: Use new mode_valid() helpers in connector probe helper
> >>>   drm: Use mode_valid() in atomic modeset
> >>>   drm: arc: Use crtc->mode_valid() callback
> >>>   drm/bridge: analogix-anx78xx: Use bridge->mode_valid() callback
> >>>   drm/bridge/synopsys: dw-hdmi: Use bridge->mode_valid() callback
> >>>   drm/arm: malidp: Use crtc->mode_valid() callback
> >>>   drm/atmel-hlcdc: Use crtc->mode_valid() callback
> >>>   drm: vc4: Use crtc->mode_valid() and encoder->mode_valid() callbacks
> >> Looks all real nice, I think a bit more time to get acks/reviews/tested-by
> >> for the driver conversions and I'll go and vacuum this all up.
> > On that: You didn't cc driver maintainers on the driver conversion patches
> > (not all are bridge drivers maintainer by Archit&co), without that they
> > might miss it. Please remember to do that (you might need to resend to get
> > their attention), scripts/get_maintainers.pl helps with that.
> 
> Yeah, I'm really sorry about that. I was in a different time zone
> with all my head messed up with jetlag so I missed this and maybe
> more :/ Lets wait for some input and I will resend the series if
> needed.

No worries. btw I've applied the 3 kernel-doc patches now, that should
also make it easier to get the driver patches reviewed (since now they
apply directly on linux-next).
-Daniel

> 
> Thanks!
> 
> Best regards,
> Jose Miguel Abreu
> 
> >
> > Thanks, Daniel
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch