linux-kernel - Re: [v4 0/3] Break out as separate driver from boe-tv101wum-nl6 panel driver

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Message-ID: <CAD=FV=Wu7aDaocnXiUg-5k+LodDvQQNh=noJ8s5jP3R46PBWsw@mail.gmail.com>
Date:   Fri, 13 Oct 2023 14:44:05 -0700
From:   Doug Anderson <dianders@...gle.com>
To:     Cong Yang <yangcong5@...qin.corp-partner.google.com>
Cc:     sam@...nborg.org, neil.armstrong@...aro.org, daniel@...ll.ch,
        hsinyi@...gle.com, linus.walleij@...aro.org, swboyd@...omium.org,
        airlied@...il.com, catalin.marinas@....com, will@...nel.org,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [v4 0/3] Break out as separate driver from boe-tv101wum-nl6 panel driver

Hi,

On Fri, Oct 13, 2023 at 2:18 AM Cong Yang
<yangcong5@...qin.corp-partner.google.com> wrote:
>
> Linus series proposed to break out ili9882t as separate driver,
> but he didn't have time for that extensive rework of the driver.
> As discussed by Linus and Doug [1], keep macro using the "struct panel_init_cmd"
> until we get some resolution about the binary size issue.
>
> [1]: https://lore.kernel.org/all/20230703-fix-boe-tv101wum-nl6-v3-0-bd6e9432c755@linaro.org
>
> In [v1 2/2], Doug suggested move the ili9882t_enter_sleep_mode function
> to ili9882t_unprepare. I tried this scheme and the test failed. I will
> continue to investigate the rootcause with ilitek, which may take a long time .
> So if possible, apply this patch first. If there are new solutions later, I
> will continue upstream.
>
> [v1 2/2] https://lore.kernel.org/all/CAD=FV=XtqPJ77dx8uRb0=tMvC3CvgH5X+7mUJeXgcG228kZfUg@mail.gmail.com/
>
> Changes in v4:
> - PATCH 2/3: Change usleep_range(50000,51000) to msleep(50);.
> - Link to v3: https://lore.kernel.org/all/20231012121004.2127918-1-yangcong5@huaqin.corp-partner.google.com/
>
> Changes in v3:
> - PATCH 1/3: Remove "init_cmd_length" and "linux/of_device.h" .
> - PATCH 2/3: Change usleep_range(50000,51000).
> - PATCH 3/3: Add a little background for commit.
> - Link to v2: https://lore.kernel.org/all/20231010121402.3687948-1-yangcong5@huaqin.corp-partner.google.com/
>
> Changes in v2:
> - PATCH 1/3: fix Doug comments,define "_INIT_SWITCH_PAGE_CMD" and remove the "shutdown".
> - PATCH 2/3: Modify ili9882t_switch_page function instead of hardcoding.
> - PATCH 3/3: Enable new config in defconfig.
> - Link to v1: https://lore.kernel.org/all/20231007060639.725350-1-yangcong5@huaqin.corp-partner.google.com/
>
> Cong Yang (3):
>   drm/panel: ili9882t: Break out as separate driver
>   drm/panel: ili9882t: Avoid blurred screen from fast sleep
>   arm64: defconfig: Enable ILITEK_ILI9882T panel
>
>  arch/arm64/configs/defconfig                  |   1 +
>  drivers/gpu/drm/panel/Kconfig                 |   9 +
>  drivers/gpu/drm/panel/Makefile                |   1 +
>  .../gpu/drm/panel/panel-boe-tv101wum-nl6.c    | 371 ---------
>  drivers/gpu/drm/panel/panel-ilitek-ili9882t.c | 779 ++++++++++++++++++
>  5 files changed, 790 insertions(+), 371 deletions(-)
>  create mode 100644 drivers/gpu/drm/panel/panel-ilitek-ili9882t.c

I think the series is well-reviewed now. I'll wait a week and target
applying next Thursday or Friday unless something comes up.

-Doug