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

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

Posted by Otto Pflüger 2 years, 9 months ago

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

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

Posted by Noralf Trønnes 2 years, 9 months ago


Den 01.12.2022 17.02, skrev 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
> 

Series applied to drm-misc-next.

Noralf.