Re: [PATCH 0/4] drm/panel: sitronix-st7789v: add support for partial mode

From: Neil Armstrong
Date: Thu Aug 03 2023 - 04:17:24 EST


On 18/07/2023 17:31, Michael Riesch wrote:
Hi all,

This series adds support for the partial display mode to the Sitronix
ST7789V panel driver. This is useful for panels that are partially
occluded by design, such as the Jasonic JT240MHQS-HWT-EK-E3. Support
for this particular panel is added as well.

Note: This series is already based on

I understand Maxime's arguments, but by looking closely at the code,
this doesn't look like an hack at all and uses capabilities of the
panel controller to expose a smaller area without depending on any
changes or hacks on the display controller side which is coherent.

Following's Daniel's summary we cannot compare it to TV overscan
because overscan is only on *some* displays, we can still get 100%
of the picture from the signal.
While here, we cannot, there's physically less pixels on the panel.

If there's no more still a strong nack or pending comments,
I plan to apply those tomorrow.


Looking forward to your comments!

Michael Riesch (4):
dt-bindings: vendor-prefixes: add jasonic
dt-bindings: display: st7789v: add jasonic jt240mhqs-hwt-ek-e3 display
drm/panel: sitronix-st7789v: add support for partial mode
drm/panel: sitronix-st7789v: add jasonic jt240mhqs-hwt-ek-e3 support

.../bindings/display/panel/sitronix,st7789v.yaml | 1 +
.../devicetree/bindings/vendor-prefixes.yaml | 2 +
drivers/gpu/drm/panel/panel-sitronix-st7789v.c | 67 +++++++++++++++++++++-
3 files changed, 68 insertions(+), 2 deletions(-)
base-commit: b43dae411767f34288aa347f26b5ed2dade39469
change-id: 20230718-feature-lcd-panel-26d9f29a7830

Best regards,