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Message-ID: <CAD=FV=Vzn0ih_RqR_ySJzFtq0B0x_4a-Uwjk56GeLyUZtTEXrQ@mail.gmail.com>
Date:   Mon, 3 May 2021 13:41:03 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Andrzej Hajda <a.hajda@...sung.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Sam Ravnborg <sam@...nborg.org>, Wolfram Sang <wsa@...nel.org>,
        MSM <linux-arm-msm@...r.kernel.org>,
        Rob Clark <robdclark@...omium.org>,
        Stanislav Lisovskiy <stanislav.lisovskiy@...el.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Steev Klimaszewski <steev@...i.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        linux-i2c <linux-i2c@...r.kernel.org>,
        "open list:DRM PANEL DRIVERS" <dri-devel@...ts.freedesktop.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Thierry Reding <thierry.reding@...il.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 01/20] drm/panel: panel-simple: Add missing
 pm_runtime_disable() calls

Hi,

On Sat, May 1, 2021 at 5:07 AM Linus Walleij <linus.walleij@...aro.org> wrote:
>
> Hi Doug,
>
> On Fri, Apr 30, 2021 at 11:04 PM Doug Anderson <dianders@...omium.org> wrote:
>
> > Pushed this one patch. Rest of the series is pending adult
> > supervision. Overall summary:
> >
> > 1. I could probably push some of the early sn65dsi86 cleanup patches
> > in this series since they have Bjorn's review and are pretty much
> > no-ops / simple cleanups, but there's probably not tons gained for
> > shoving those in early.
>
> Those look good to me as well. I'd say just apply them.
>
> To me it looks like up until and including patch 18?
> Feel free to add my
> Acked-by: Linus Walleij <linus.walleij@...aro.org>
>
> On these.

OK, thanks! I've just pushed these patches to drm-misc-next with your Ack:

63358e24ee79 drm/panel: panel-simple: Cache the EDID as long as we retain power
31e25395d8b7 drm/panel: panel-simple: Power the panel when reading the EDID
4318ea406e02 drm/panel: panel-simple: Remove extra call:
drm_connector_update_edid_property()
b137406d9679 drm/bridge: ti-sn65dsi86: If refclk, DP AUX can happen
w/out pre-enable
f7a5ee2cd3e2 drm/bridge: ti-sn65dsi86: Code motion of refclk
management functions
9bede63127c6 drm/bridge: ti-sn65dsi86: Use pm_runtime autosuspend
5c4381eeb709 drm/panel: panel-simple: Get rid of hacky HPD chicken-and-egg code
bf73537f411b drm/bridge: ti-sn65dsi86: Break GPIO and MIPI-to-eDP
bridge into sub-drivers
bef236a5206c drm/bridge: ti-sn65dsi86: Move all the chip-related init
to the start
f94eb8a32863 drm/bridge: ti-sn65dsi86: Cleanup managing of drvdata
3636fc25f760 drm/bridge: ti-sn65dsi86: Add local var for "dev" to simplify probe
52d54819c8ae drm/bridge: ti-sn65dsi86: Clean debugfs code
dea2500a820c drm/bridge: ti-sn65dsi86: Use devm to do our runtime_disable
905d66d08d0f drm/bridge: ti-sn65dsi86: More renames in prep for sub-devices
db0036db4851 drm/bridge: ti-sn65dsi86: Rename the main driver data structure

Things not pushed:

[v5,15/20] i2c: i2c-core-of: Fix corner case of finding adapter by node
-> Can't push i2c things

[v5,14/20] drm/bridge: ti-sn65dsi86: Promote the AUX channel to its own sub-dev
-> Won't work without rework. See [1]

[v5,19/20] drm/bridge: ti-sn65dsi86: Don't read EDID blob over DDC
-> Needs Laurent and also patch 14/20 to be resolved.

[v5,20/20] arm64: dts: qcom: Link the panel to the bridge's DDC bus
-> Needs all the rest resolved.

Let me see if I can find a way to work around the AUX channel stuff
and then I'll push a v6 of just what's left.

> Just to keep you busy and make sure you don't run out of work
> (haha) I noticed that the gpio_chip in this driver can use
> the new GPIO_REGMAP helper library with the fixes just
> landed in Torvald's tree.
>
> At your convenience and when you think there is too little
> stuff in your sn65dsi86 TODO, check out
> pinctrl-bcm63xx.c for an example of select GPIO_REGMAP
> made very simple (this works fine as long as they are bit
> offsets starting from 0).

I seem to recall you mentioning something like this. When I looked at
it in the past I wasn't convinced it would be easy. See my response
[2]. The rough summary is that I didn't think the helpers were happy
with the pm_runtime() model that I'm using. Did I get that wrong?

[1] https://lore.kernel.org/dri-devel/CAD=FV=UTmOP8LDaf-Tyx17OORQK6pJH6O_w3cP0Bu-KRYaHkYw@mail.gmail.com/
[2] https://lore.kernel.org/r/CAD=FV=VqD-dY=v23KYuTqy8aRNQJJzJ7h_UOcdEBYuK9X51MQQ@mail.gmail.com

-Doug

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