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[0/2] i.MX91/93 parallel display bridge

Message ID 20250211084119.849324-1-alexander.stein@ew.tq-group.com (mailing list archive)
Headers show
Series i.MX91/93 parallel display bridge | expand

Message

Alexander Stein Feb. 11, 2025, 8:41 a.m. UTC
Hi,

i.MX91/93 support a parallel display interface. There is a single register
for configuring the output format. There is not much documentation, but
apparently this does some internal conversion.
Add a bridge driver (similar to fsl-ldb.c) for connecting a bridge/panel
to lcdif.
I'm a bit unsure about the name. There is no dedicated IP, according to
reference manual, just that single register. I would also agree
to imx9-dpi or imx93-dpi.
Note: It's only applicable to i.MX91/93, but not i.MX95!

Tested on TQMa9352 on MBa91xxCA

Best regards,
Alexander

Alexander Stein (2):
  dt-bindings: display: bridge: ldb: Implement simple Freescale
    i.MX91/93 DPI bridge
  drm: bridge: imx9-parallel-disp-fmt: add i.MX91/93 parallel display
    bridge

 .../bridge/fsl,imx9-parallel-disp-fmt.yaml    |  78 +++++++
 drivers/gpu/drm/bridge/Kconfig                |  10 +
 drivers/gpu/drm/bridge/Makefile               |   1 +
 .../gpu/drm/bridge/imx9-parallel-disp-fmt.c   | 213 ++++++++++++++++++
 4 files changed, 302 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml
 create mode 100644 drivers/gpu/drm/bridge/imx9-parallel-disp-fmt.c

Comments

Liu Ying Feb. 12, 2025, 3:26 a.m. UTC | #1
On 02/11/2025, Alexander Stein wrote:
> Hi,

Hi Alexander,

> 
> i.MX91/93 support a parallel display interface. There is a single register
> for configuring the output format. There is not much documentation, but
> apparently this does some internal conversion.
> Add a bridge driver (similar to fsl-ldb.c) for connecting a bridge/panel
> to lcdif.
> I'm a bit unsure about the name. There is no dedicated IP, according to
> reference manual, just that single register. I would also agree
> to imx9-dpi or imx93-dpi.
> Note: It's only applicable to i.MX91/93, but not i.MX95!
> 
> Tested on TQMa9352 on MBa91xxCA
> 
> Best regards,
> Alexander
> 
> Alexander Stein (2):
>   dt-bindings: display: bridge: ldb: Implement simple Freescale
>     i.MX91/93 DPI bridge
>   drm: bridge: imx9-parallel-disp-fmt: add i.MX91/93 parallel display
>     bridge
> 
>  .../bridge/fsl,imx9-parallel-disp-fmt.yaml    |  78 +++++++
>  drivers/gpu/drm/bridge/Kconfig                |  10 +
>  drivers/gpu/drm/bridge/Makefile               |   1 +
>  .../gpu/drm/bridge/imx9-parallel-disp-fmt.c   | 213 ++++++++++++++++++
>  4 files changed, 302 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx9-parallel-disp-fmt.yaml
>  create mode 100644 drivers/gpu/drm/bridge/imx9-parallel-disp-fmt.c
> 

Thanks for your patch series.  However, I have already sent a patch series[1]
to add the i.MX93 parallel display format configuration support.  I may send
a new version to rename .remove_new to .remove in the bridge driver at least.

[1] https://patchwork.freedesktop.org/series/113457/