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(-) -- 2.30.2
