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Message-ID: <20201119173055.geaaori62wgtrfvh@fsr-ub1864-141>
Date: Thu, 19 Nov 2020 19:30:55 +0200
From: Laurentiu Palcu <laurentiu.palcu@....nxp.com>
To: Liu Ying <victor.liu@....com>
Cc: linux-arm-kernel@...ts.infradead.org,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, tzimmermann@...e.de,
airlied@...ux.ie, s.hauer@...gutronix.de, robh+dt@...nel.org,
linux-imx@....com, kernel@...gutronix.de, shawnguo@...nel.org
Subject: Re: [PATCH 0/8] drm/imx: Introduce i.MX8qxp DPU DRM
Hi Liu Ying,
On Thu, Nov 19, 2020 at 05:22:17PM +0800, Liu Ying wrote:
> Hi,
>
>
> This patch set introduces i.MX8qxp Display Processing Unit(DPU) DRM support.
Glad to see this series out. However, something went wrong with it as
patch 5/8 didn't make it to dri-devel mailing list... :/
https://lists.freedesktop.org/archives/dri-devel/2020-November/thread.html
So, people on to dri-devel may not be able to review it...
However, it did make it to LKML:
https://lkml.org/lkml/2020/11/19/249
Not sure what happened here... :/
Thanks,
laurentiu
>
> DPU is comprised of a blit engine for 2D graphics, a display controller
> and a command sequencer. Outside of DPU, optional prefetch engines can
> fetch data from memory prior to some DPU fetchunits of blit engine and
> display controller. The pre-fetchers support linear formats and Vivante
> GPU tile formats.
>
> Reference manual can be found at:
> https://www.nxp.com/webapp/Download?colCode=IMX8DQXPRM
>
>
> This patch set adds kernel modesetting support for the display controller part.
> It supports two CRTCs per display controller, several planes, prefetch
> engines and some properties of CRTC and plane. Currently, the registers of
> the controller is accessed without command sequencer involved, instead just by
> using CPU. DRM connectors would be created from the DPU KMS driver.
>
>
> If people want to try this series, clock patches can be found at:
> https://www.spinics.net/lists/arm-kernel/msg856137.html
>
> and, power domain patches at:
> https://www.spinics.net/lists/arm-kernel/msg856097.html
>
>
> I will send other patch sets to add downstream bridges(embedded in i.MX8qxp)
> to support LVDS displays.
>
> A brief look at the pipe:
> prefetch eng -> DPU -> pixel combiner -> pixel link -> pixel to DPI(pxl2dpi) ->
> LVDS display bridge(LDB)
>
>
> Patch 1 ~ 3 add dt-bindings for DPU and prefetch engines.
> Patch 4 is a minor improvement of a macro to suppress warning as the KMS driver
> uses it.
> Patch 5 introduces the DPU DRM support.
> Patch 6 updates MAINTAINERS.
> Patch 7 & 8 add DPU and prefetch engines support in the device tree of
> i.MX8qxp MEK platform.
>
>
> Welcome comments, thanks.
>
>
> Liu Ying (8):
> dt-bindings: display: imx: Add i.MX8qxp/qm DPU binding
> dt-bindings: display: imx: Add i.MX8qxp/qm PRG binding
> dt-bindings: display: imx: Add i.MX8qxp/qm DPR channel binding
> drm/atomic: Avoid unused-but-set-variable warning on
> for_each_old_plane_in_state
> drm/imx: Introduce i.MX8qxp DPU DRM
> MAINTAINERS: add maintainer for i.MX8qxp DPU DRM driver
> arm64: imx8qxp:dtsi: Introduce DC0 subsystem
> arm64: dts: imx8qxp-mek: Enable DPU and it's prefetch engines
>
> .../bindings/display/imx/fsl,imx8qxp-dprc.yaml | 87 ++
> .../bindings/display/imx/fsl,imx8qxp-dpu.yaml | 358 ++++++++
> .../bindings/display/imx/fsl,imx8qxp-prg.yaml | 60 ++
> MAINTAINERS | 9 +
> arch/arm64/boot/dts/freescale/imx8qxp-mek.dts | 64 ++
> arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 313 +++++++
> drivers/gpu/drm/imx/Kconfig | 1 +
> drivers/gpu/drm/imx/Makefile | 1 +
> drivers/gpu/drm/imx/dpu/Kconfig | 10 +
> drivers/gpu/drm/imx/dpu/Makefile | 10 +
> drivers/gpu/drm/imx/dpu/dpu-constframe.c | 170 ++++
> drivers/gpu/drm/imx/dpu/dpu-core.c | 880 ++++++++++++++++++++
> drivers/gpu/drm/imx/dpu/dpu-crtc.c | 926 +++++++++++++++++++++
> drivers/gpu/drm/imx/dpu/dpu-crtc.h | 62 ++
> drivers/gpu/drm/imx/dpu/dpu-disengcfg.c | 114 +++
> drivers/gpu/drm/imx/dpu/dpu-dprc.c | 721 ++++++++++++++++
> drivers/gpu/drm/imx/dpu/dpu-dprc.h | 40 +
> drivers/gpu/drm/imx/dpu/dpu-drv.c | 296 +++++++
> drivers/gpu/drm/imx/dpu/dpu-drv.h | 28 +
> drivers/gpu/drm/imx/dpu/dpu-extdst.c | 296 +++++++
> drivers/gpu/drm/imx/dpu/dpu-fetchdecode.c | 291 +++++++
> drivers/gpu/drm/imx/dpu/dpu-fetcheco.c | 221 +++++
> drivers/gpu/drm/imx/dpu/dpu-fetchlayer.c | 151 ++++
> drivers/gpu/drm/imx/dpu/dpu-fetchunit.c | 609 ++++++++++++++
> drivers/gpu/drm/imx/dpu/dpu-fetchunit.h | 191 +++++
> drivers/gpu/drm/imx/dpu/dpu-fetchwarp.c | 247 ++++++
> drivers/gpu/drm/imx/dpu/dpu-framegen.c | 392 +++++++++
> drivers/gpu/drm/imx/dpu/dpu-gammacor.c | 220 +++++
> drivers/gpu/drm/imx/dpu/dpu-hscaler.c | 272 ++++++
> drivers/gpu/drm/imx/dpu/dpu-kms.c | 543 ++++++++++++
> drivers/gpu/drm/imx/dpu/dpu-kms.h | 23 +
> drivers/gpu/drm/imx/dpu/dpu-layerblend.c | 345 ++++++++
> drivers/gpu/drm/imx/dpu/dpu-plane.c | 703 ++++++++++++++++
> drivers/gpu/drm/imx/dpu/dpu-plane.h | 56 ++
> drivers/gpu/drm/imx/dpu/dpu-prg.c | 389 +++++++++
> drivers/gpu/drm/imx/dpu/dpu-prg.h | 45 +
> drivers/gpu/drm/imx/dpu/dpu-prv.h | 203 +++++
> drivers/gpu/drm/imx/dpu/dpu-tcon.c | 249 ++++++
> drivers/gpu/drm/imx/dpu/dpu-vscaler.c | 305 +++++++
> drivers/gpu/drm/imx/dpu/dpu.h | 389 +++++++++
> include/drm/drm_atomic.h | 4 +-
> 41 files changed, 10293 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dprc.yaml
> create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dpu.yaml
> create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-prg.yaml
> create mode 100644 drivers/gpu/drm/imx/dpu/Kconfig
> create mode 100644 drivers/gpu/drm/imx/dpu/Makefile
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-constframe.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-core.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-crtc.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-crtc.h
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-disengcfg.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-dprc.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-dprc.h
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-drv.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-drv.h
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-extdst.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetchdecode.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetcheco.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetchlayer.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetchunit.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetchunit.h
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-fetchwarp.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-framegen.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-gammacor.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-hscaler.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-kms.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-kms.h
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-layerblend.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-plane.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-plane.h
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-prg.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-prg.h
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-prv.h
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-tcon.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu-vscaler.c
> create mode 100644 drivers/gpu/drm/imx/dpu/dpu.h
>
> --
> 2.7.4
>
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> dri-devel@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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