On 16/01/2024 10:32, Shengyang Chen wrote:
Hi, Neil
Thanks for your comment.
-----Original Message-----
From: neil.armstr...@linaro.org <neil.armstr...@linaro.org>
Sent: 2024年1月9日 19:19
To: Shengyang Chen <shengyang.c...@starfivetech.com>;
devicet...@vger.kernel.org; dri-devel@lists.freedesktop.org
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Liang <changhuang.li...@starfivetech.com>; Keith Zhao
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Subject: Re: [PATCH v2 0/2] Add waveshare 7inch touchscreen panel support
Hi,
On 09/01/2024 08:09, Shengyang Chen wrote:
This patchset adds waveshare 7inch touchscreen panel support for the
StarFive JH7110 SoC.
Could you precise which SKU you're referring to ? is it 19885 =>
https://www.waveshare.com/7inch-dsi-lcd.htm ?
yes, it is
sorry for confusing you.
Are you sure it requires different timings from the RPi one ? In the Waveshare
wiki it explicitly uses the rpi setup (vc4-kms-dsi-7inch) to drive it:
https://www.waveshare.com/wiki/7inch_DSI_LCD
Referring to Keith's answer
https://lists.freedesktop.org/archives/dri-devel/2023-December/434200.html
the panel timing value is generated to fit phy's bitrate and prevent overflow
and underflow.
Referring to the suggestion, we may try other timing from panel-simple to drive
the panel.
Please implement a mode_fixup in your DSI host driver instead.
Neil
Neil
changes since v1:
- Rebased on tag v6.7.
patch 1:
- Gave up original changing.
- Changed the commit message.
- Add compatible in panel-simple.yaml
patch 2:
- Gave up original changing.
- Changed the commit message.
- Add new mode for the panel in panel-simple.c
v1:
https://patchwork.kernel.org/project/dri-devel/cover/20231124104451.44
271-1-shengyang.c...@starfivetech.com/
Shengyang Chen (2):
dt-bindings: display: panel: panel-simple: Add compatible property for
waveshare 7inch touchscreen panel
gpu: drm: panel: panel-simple: add new display mode for waveshare
7inch touchscreen panel
.../bindings/display/panel/panel-simple.yaml | 2 ++
drivers/gpu/drm/panel/panel-simple.c | 28
+++++++++++++++++++
2 files changed, 30 insertions(+)
Best Regards,
Shengyang
