[PATCH v3 0/9] Add support for i.MX94 DCIF

Laurentiu Palcu posted 9 patches 1 month, 4 weeks ago
There is a newer version of this series
.../bindings/clock/nxp,imx95-blk-ctl.yaml     |   5 +
.../bindings/display/bridge/fsl,ldb.yaml      |   2 +
.../bindings/display/imx/nxp,imx94-dcif.yaml  |  82 +++
MAINTAINERS                                   |   9 +
arch/arm64/boot/dts/freescale/imx943-evk.dts  | 121 +++
arch/arm64/boot/dts/freescale/imx943.dtsi     |  55 +-
drivers/gpu/drm/bridge/fsl-ldb.c              |  47 +-
drivers/gpu/drm/imx/Kconfig                   |   1 +
drivers/gpu/drm/imx/Makefile                  |   1 +
drivers/gpu/drm/imx/dcif/Kconfig              |  15 +
drivers/gpu/drm/imx/dcif/Makefile             |   5 +
drivers/gpu/drm/imx/dcif/dcif-crc.c           | 211 ++++++
drivers/gpu/drm/imx/dcif/dcif-crc.h           |  52 ++
drivers/gpu/drm/imx/dcif/dcif-crtc.c          | 694 ++++++++++++++++++
drivers/gpu/drm/imx/dcif/dcif-drv.c           | 226 ++++++
drivers/gpu/drm/imx/dcif/dcif-drv.h           |  84 +++
drivers/gpu/drm/imx/dcif/dcif-kms.c           | 100 +++
drivers/gpu/drm/imx/dcif/dcif-plane.c         | 269 +++++++
drivers/gpu/drm/imx/dcif/dcif-reg.h           | 266 +++++++
19 files changed, 2223 insertions(+), 22 deletions(-)
create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx94-dcif.yaml
create mode 100644 drivers/gpu/drm/imx/dcif/Kconfig
create mode 100644 drivers/gpu/drm/imx/dcif/Makefile
create mode 100644 drivers/gpu/drm/imx/dcif/dcif-crc.c
create mode 100644 drivers/gpu/drm/imx/dcif/dcif-crc.h
create mode 100644 drivers/gpu/drm/imx/dcif/dcif-crtc.c
create mode 100644 drivers/gpu/drm/imx/dcif/dcif-drv.c
create mode 100644 drivers/gpu/drm/imx/dcif/dcif-drv.h
create mode 100644 drivers/gpu/drm/imx/dcif/dcif-kms.c
create mode 100644 drivers/gpu/drm/imx/dcif/dcif-plane.c
create mode 100644 drivers/gpu/drm/imx/dcif/dcif-reg.h
[PATCH v3 0/9] Add support for i.MX94 DCIF
Posted by Laurentiu Palcu 1 month, 4 weeks ago
Hi,

This patch-set adds support for the i.MX94 Display Control Interface.
It depends on Peng Fan's DTS patch [1] that was not yet merged. Also, it
needs the BLK CTL changes [2] that I spinned off from v2 in a different
patchset.

Also, included in the patch-set are a few extra patches that the DCIF
driver depends on for functioning properly:
 * 1/9 - 3/9 : add support for i.MX94 to fsl-ldb driver. It also
			   contains a patch (2/9) from Liu Ying that was already reviewed
			   and was part of another patch-set ([3]), but was never merged;

v3:
 * Removed the BLK CTL patches and created a separate patch set [2] for them;
 * Collected r-b tags for 1/9, 2/9, 3/9 and 9/9;
 * Removed the DCIF QoS functionality until I find a better way to
   implement it through syscon. QoS functionality will be added in
   subsequent patches. Also, used devm_clk_bulk_get_all() and used
   dev_err_probe() as suggested;
 * Addressed Frank's and Krzysztof's comments on the DCIF bindings;
 * Addressed Frank's comments on dtsi and dts files;
 * Added a new binding patch, 6/9, for adding 'ldb' optional property to
   nxp,imx95-blk-ctl.yaml;

v2:
 * reworked the BLK_CTL patch and split in 2 to make it easier for
   review;
 * split the dts and dtsi patch in 2 separate ones;
 * addressed Frank's comments in DCIF driver;
 * addressed Rob's comments for the bindings files;
 * addressed a couple of checkpatch issues;

Thanks,
Laurentiu

[1] https://lkml.org/lkml/2025/7/7/84
[2] https://www.spinics.net/lists/kernel/msg5791546.html
[3] https://lkml.org/lkml/2024/11/14/262

Laurentiu Palcu (7):
  dt-bindings: display: fsl,ldb: Add i.MX94 LDB
  drm/bridge: fsl-ldb: Add support for i.MX94
  dt-bindings: display: imx: Add bindings for i.MX94 DCIF
  dt-bindings: clock: nxp,imx95-blk-ctl: Add optional ldb property
  arm64: dts: imx943: Add display pipeline nodes
  arm64: dts: imx943-evk: Add display support using IT6263
  MAINTAINERS: Add entry for i.MX94 DCIF driver

Liu Ying (1):
  drm/bridge: fsl-ldb: Get the next non-panel bridge

Sandor Yu (1):
  drm/imx: Add support for i.MX94 DCIF

 .../bindings/clock/nxp,imx95-blk-ctl.yaml     |   5 +
 .../bindings/display/bridge/fsl,ldb.yaml      |   2 +
 .../bindings/display/imx/nxp,imx94-dcif.yaml  |  82 +++
 MAINTAINERS                                   |   9 +
 arch/arm64/boot/dts/freescale/imx943-evk.dts  | 121 +++
 arch/arm64/boot/dts/freescale/imx943.dtsi     |  55 +-
 drivers/gpu/drm/bridge/fsl-ldb.c              |  47 +-
 drivers/gpu/drm/imx/Kconfig                   |   1 +
 drivers/gpu/drm/imx/Makefile                  |   1 +
 drivers/gpu/drm/imx/dcif/Kconfig              |  15 +
 drivers/gpu/drm/imx/dcif/Makefile             |   5 +
 drivers/gpu/drm/imx/dcif/dcif-crc.c           | 211 ++++++
 drivers/gpu/drm/imx/dcif/dcif-crc.h           |  52 ++
 drivers/gpu/drm/imx/dcif/dcif-crtc.c          | 694 ++++++++++++++++++
 drivers/gpu/drm/imx/dcif/dcif-drv.c           | 226 ++++++
 drivers/gpu/drm/imx/dcif/dcif-drv.h           |  84 +++
 drivers/gpu/drm/imx/dcif/dcif-kms.c           | 100 +++
 drivers/gpu/drm/imx/dcif/dcif-plane.c         | 269 +++++++
 drivers/gpu/drm/imx/dcif/dcif-reg.h           | 266 +++++++
 19 files changed, 2223 insertions(+), 22 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/imx/nxp,imx94-dcif.yaml
 create mode 100644 drivers/gpu/drm/imx/dcif/Kconfig
 create mode 100644 drivers/gpu/drm/imx/dcif/Makefile
 create mode 100644 drivers/gpu/drm/imx/dcif/dcif-crc.c
 create mode 100644 drivers/gpu/drm/imx/dcif/dcif-crc.h
 create mode 100644 drivers/gpu/drm/imx/dcif/dcif-crtc.c
 create mode 100644 drivers/gpu/drm/imx/dcif/dcif-drv.c
 create mode 100644 drivers/gpu/drm/imx/dcif/dcif-drv.h
 create mode 100644 drivers/gpu/drm/imx/dcif/dcif-kms.c
 create mode 100644 drivers/gpu/drm/imx/dcif/dcif-plane.c
 create mode 100644 drivers/gpu/drm/imx/dcif/dcif-reg.h

-- 
2.49.0
Re: [PATCH v3 0/9] Add support for i.MX94 DCIF
Posted by Krzysztof Kozlowski 1 month, 4 weeks ago
On Wed, Aug 06, 2025 at 06:05:07PM +0300, Laurentiu Palcu wrote:
> Hi,
> 
> This patch-set adds support for the i.MX94 Display Control Interface.
> It depends on Peng Fan's DTS patch [1] that was not yet merged. Also, it
> needs the BLK CTL changes [2] that I spinned off from v2 in a different
> patchset.
> 
> Also, included in the patch-set are a few extra patches that the DCIF
> driver depends on for functioning properly:
>  * 1/9 - 3/9 : add support for i.MX94 to fsl-ldb driver. It also
> 			   contains a patch (2/9) from Liu Ying that was already reviewed
> 			   and was part of another patch-set ([3]), but was never merged;
> 
> v3:
>  * Removed the BLK CTL patches and created a separate patch set [2] for them;
>  * Collected r-b tags for 1/9, 2/9, 3/9 and 9/9;
>  * Removed the DCIF QoS functionality until I find a better way to
>    implement it through syscon. QoS functionality will be added in
>    subsequent patches. Also, used devm_clk_bulk_get_all() and used
>    dev_err_probe() as suggested;
>  * Addressed Frank's and Krzysztof's comments on the DCIF bindings;

What exactly changed? I cannot find v2 of one of the patches, no lore
links here, so with incomplete changelog I say you make it difficult for
me to review it.

Best regards,
Krzysztof
Re: [PATCH v3 0/9] Add support for i.MX94 DCIF
Posted by Laurentiu Palcu 1 month, 4 weeks ago
On Thu, Aug 07, 2025 at 09:26:55AM +0200, Krzysztof Kozlowski wrote:
> On Wed, Aug 06, 2025 at 06:05:07PM +0300, Laurentiu Palcu wrote:
> > Hi,
> > 
> > This patch-set adds support for the i.MX94 Display Control Interface.
> > It depends on Peng Fan's DTS patch [1] that was not yet merged. Also, it
> > needs the BLK CTL changes [2] that I spinned off from v2 in a different
> > patchset.
> > 
> > Also, included in the patch-set are a few extra patches that the DCIF
> > driver depends on for functioning properly:
> >  * 1/9 - 3/9 : add support for i.MX94 to fsl-ldb driver. It also
> > 			   contains a patch (2/9) from Liu Ying that was already reviewed
> > 			   and was part of another patch-set ([3]), but was never merged;
> > 
> > v3:
> >  * Removed the BLK CTL patches and created a separate patch set [2] for them;
> >  * Collected r-b tags for 1/9, 2/9, 3/9 and 9/9;
> >  * Removed the DCIF QoS functionality until I find a better way to
> >    implement it through syscon. QoS functionality will be added in
> >    subsequent patches. Also, used devm_clk_bulk_get_all() and used
> >    dev_err_probe() as suggested;
> >  * Addressed Frank's and Krzysztof's comments on the DCIF bindings;
> 
> What exactly changed?
I removed the redundant text in the description of interrupts, to make
the text fit on the same line with "description:" and, also, removed the
description items for clocks as they're pretty much explained by the
clock-names.

> I cannot find v2 of one of the patches, no lore links here, so with
> incomplete changelog I say you make it difficult for me to review it.
I'm sorry about that. :/ I am aware that removing or adding patches to
the set will most likely mess up with various tools... However, I stated
in the last line of the v3 changelog that 6/9 was new: "Added a new
binding patch, 6/9, for adding 'ldb' optional property to
nxp,imx95-blk-ctl.yaml".

Thanks,
Laurentiu

> 
> Best regards,
> Krzysztof
>