As stated in Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yml,
the MIPI DBI specification defines two power supplies, one for powering
the panel and one for the I/O voltage. The panel-mipi-dbi driver
currently only supports specifying a single "power-supply" in the
device tree.

Add support for a second power supply defined in a new "io-supply"
device tree property to make the driver properly configure the voltage
regulators on platforms where separate supplies are used.

(Resent from a new email address with proper formatting)

Otto Pflüger (4):
  drm/mipi-dbi: Support separate I/O regulator
  drm/tiny: panel-mipi-dbi: Read I/O supply from DT
  dt-bindings: display: panel: mipi-dbi-spi: Add missing power-supply
  dt-bindings: display: panel: mipi-dbi-spi: Add io-supply

 .../bindings/display/panel/panel-mipi-dbi-spi.yaml | 11 ++++++++++-
 drivers/gpu/drm/drm_mipi_dbi.c                     | 14 ++++++++++++++
 drivers/gpu/drm/tiny/panel-mipi-dbi.c              |  5 +++++
 include/drm/drm_mipi_dbi.h                         |  7 ++++++-
 4 files changed, 35 insertions(+), 2 deletions(-)

-- 
2.30.2

On 27/11/2022 19:59, Otto Pflüger wrote:
> As stated in Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yml,
> the MIPI DBI specification defines two power supplies, one for powering
> the panel and one for the I/O voltage. The panel-mipi-dbi driver
> currently only supports specifying a single "power-supply" in the
> device tree.
> 
> Add support for a second power supply defined in a new "io-supply"
> device tree property to make the driver properly configure the voltage
> regulators on platforms where separate supplies are used.
> 
> (Resent from a new email address with proper formatting)

I just got only this cover letter, no rest of them/thread. Mark resents
as RESEND:

git format-patch --subject-prefix="RESEND PATCH" -4
scripts/get_maintainer.pl 00*
git send-email ... 00*

Best regards,
Krzysztof