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From: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
To: sam@ravnborg.org, neil.armstrong@linaro.org, daniel@ffwll.ch,
	dianders@google.com, hsinyi@google.com, linus.walleij@linaro.org,
	swboyd@chromium.org, airlied@gmail.com, catalin.marinas@arm.com,
	will@kernel.org
Cc: devicetree@vger.kernel.org,
	Cong Yang <yangcong5@huaqin.corp-partner.google.com>,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [v3 0/3] Break out as separate driver from boe-tv101wum-nl6 panel driver
Date: Thu, 12 Oct 2023 20:10:01 +0800	[thread overview]
Message-ID: <20231012121004.2127918-1-yangcong5@huaqin.corp-partner.google.com> (raw)

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, because
the touchpanel reset was already pulled low before the panel enter sleep,
which did not seem to meet the timing requirements. I hoped that the current
adding delay solution can be apply to solve the special requirements of this IC.

[v1 2/2] https://lore.kernel.org/all/CAD=FV=XtqPJ77dx8uRb0=tMvC3CvgH5X+7mUJeXgcG228kZfUg@mail.gmail.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

-- 
2.25.1


             reply	other threads:[~2023-10-12 12:10 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-12 12:10 Cong Yang [this message]
2023-10-12 12:10 ` [v3 1/3] drm/panel: ili9882t: Break out as separate driver Cong Yang
2023-10-12 12:10 ` [v3 2/3] drm/panel: ili9882t: Avoid blurred screen from fast sleep Cong Yang
2023-10-12 15:15   ` Doug Anderson
2023-10-12 15:15     ` Doug Anderson
2023-10-13  1:11     ` cong yang
2023-10-13  1:11       ` cong yang
2023-10-13  2:28       ` Doug Anderson
2023-10-13  2:28         ` Doug Anderson
2023-10-13  3:55         ` cong yang
2023-10-13  3:55           ` cong yang
2023-10-13 17:05           ` Doug Anderson
2023-10-13 17:05             ` Doug Anderson
2023-10-12 12:10 ` [v3 3/3] arm64: defconfig: Enable ILITEK_ILI9882T panel Cong Yang

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