[PATCH v2 0/3] drm/tiny: panel-mipi-dbi: Support separate I/O voltage supply

[Otto Pflüger]

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.

Changes in v2:
 - Don't list power-supply in the properties section of
   panel-mipi-dbi-spi.yaml because it is already in panel-common.yaml

Otto Pflüger (3):
  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 io-supply

 .../bindings/display/panel/panel-mipi-dbi-spi.yaml |  8 +++++++-
 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, 32 insertions(+), 2 deletions(-)

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2.30.2