drm/panel: sitronix-st7789v: Add EDT ET028013DMA panel support

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This panel from Emerging Display Technologies Corporation features an
ST7789V2 LCD controller panel inside which is almost identical to what
the Sitronix panel driver supports.

In practice, the module physical size is specific, and experiments show
that the display will malfunction if any of the following situation
occurs:
* Pixel clock is above 3MHz
* Pixel clock is not inverted
I could not properly identify the reasons behind these failures, scope
captures show valid input signals.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230714013756.1546769-19-sre@kernel.org

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Miquel Raynal 2023-07-14 03:37:55 +02:00 • committed by Neil Armstrong

parent a368b40836

commit 71f7390821

1 changed files with 25 additions and 0 deletions

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drivers/gpu/drm/panel/panel-sitronix-st7789v.c

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