On Tue, 2021-03-23 at 01:03 +0000, Marcel Ziswiler wrote: > Hi Liu > > Some further discrepancy with them binding examples: > > arch/arm64/boot/dts/freescale/imx8qxp.dtsi:335.9-36: Warning (reg_format): /dpu@56180000:reg: property has > invalid length (8 bytes) (#address-cells == 2, #size-cells == 2) > arch/arm64/boot/dts/freescale/imx8qxp.dtsi:508.9-35: Warning (reg_format): /syscon@56221000:reg: property has > invalid length (8 bytes) (#address-cells == 2, #size-cells == 2) > arch/arm64/boot/dts/freescale/imx8qxp.dtsi:601.9-34: Warning (reg_format): /phy@56228300:reg: property has > invalid length (8 bytes) (#address-cells == 2, #size-cells == 2) > arch/arm64/boot/dts/freescale/imx8qxp.dtsi:613.9-36: Warning (reg_format): /pixel-combiner@56020000:reg: > property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 2) > > And with that I am unable to bring it up: > > [ 1.714498] imx8qxp-ldb 5622100000001000.syscon:ldb: [drm:ldb_init_helper] *ERROR* failed to get regmap: -12 > [ 1.724441] imx8qxp-ldb: probe of 5622100000001000.syscon:ldb failed with error -12 > [ 1.734983] imx8qxp-pixel-combiner 5602000000010000.pixel-combiner: invalid resource > [ 1.742830] imx8qxp-pixel-combiner: probe of 5602000000010000.pixel-combiner failed with error -22 > [ 1.754040] imx8qxp-display-pixel-link dc0-pixel-link0: [drm:imx8qxp_pixel_link_bridge_probe] *ERROR* failed > to get pixel link node alias id: -19 > [ 1.769626] imx8qxp-pxl2dpi 5622100000001000.syscon:pxl2dpi: [drm:imx8qxp_pxl2dpi_bridge_probe] *ERROR* > failed to get regmap: -12 > [ 1.781397] imx8qxp-pxl2dpi: probe of 5622100000001000.syscon:pxl2dpi failed with error -12 > [ 1.840547] imx8qxp-lpcg-clk 59580000.clock-controller: deferred probe timeout, ignoring dependency > [ 1.840571] imx8qxp-lpcg-clk: probe of 59580000.clock-controller failed with error -110 > > Any suggestions welcome. Thanks! Please reference the patch set I shared in my last reply and see how it goes. Thanks. Liu Ying > > Cheers > > Marcel > > On Wed, 2021-03-17 at 11:42 +0800, Liu Ying wrote: > > Hi, > > > > This is the v6 series to add some DRM bridge drivers support > > for i.MX8qm/qxp SoCs. > > > > The bridges may chain one by one to form display pipes to support > > LVDS displays. The relevant display controller is DPU embedded in > > i.MX8qm/qxp SoCs. > > > > The DPU KMS driver can be found at: > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.spinics.net%2Flists%2Farm-kernel%2Fmsg878542.html&data=04%7C01%7Cvictor.liu%40nxp.com%7C23e9e19a27ae45007db608d8ed977152%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637520581990271723%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=LziYbGruJmOb70UWGvx%2BX0Fx3gsoEtubdiNBpuKcjXw%3D&reserved=0 > > > > This series supports the following display pipes: > > 1) i.MX8qxp: > > prefetch eng -> DPU -> pixel combiner -> pixel link -> > > pixel link to DPI(PXL2DPI) -> LVDS display bridge(LDB) > > > > 2) i.MX8qm: > > prefetch eng -> DPU -> pixel combiner -> pixel link -> LVDS display bridge(LDB) > > > > > > This series dropped the patch 'phy: Add LVDS configuration options', as > > suggested by Robert Foss, because it has already been sent with the following > > series to add Mixel combo PHY found in i.MX8qxp: > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.spinics.net%2Flists%2Farm-kernel%2Fmsg879957.html&data=04%7C01%7Cvictor.liu%40nxp.com%7C23e9e19a27ae45007db608d8ed977152%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637520581990271723%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=lPUkWoIHjpBM5dZjFiaNjmQaQgcfIAHx%2FyRtQjZ%2B3po%3D&reserved=0 > > > > So, this version depends on that series. > > > > > > Patch 1/14 and 2/14 add bus formats used by pixel combiner. > > > > Patch 7/14 adds dt-binding for Control and Status Registers module(a syscon > > used by PXL2DPI and LDB), which references the PXL2DPI and LDB schemas. > > > > Patch 10/14 adds a helper for LDB bridge drivers. > > > > Patch 3/14 ~ 6/14, 8/14, 9/14 and 11/14 ~ 13/14 add drm bridge drivers and > > dt-bindings support for the bridges. > > > > Patch 14/14 updates MAINTAINERS. > > > > > > I've tested this series with a koe,tx26d202vm0bwa dual link LVDS panel and > > a LVDS to HDMI bridge(with a downstream drm bridge driver). > > > > > > Welcome comments, thanks. > > > > v5->v6: > > * Fix data organizations in documentation(patch 2/14) for > > MEDIA_BUS_FMT_RGB{666,888}_1X30-CPADLO. (Laurent) > > * Add Laurent's R-b tags on patch 1/14 and 2/14. > > * Drop 'select' schema from the CSR dt-binding documentation(patch 7/14). (Rob) > > * Add Rob's R-b tag on patch 8/14. > > > > v4->v5: > > * Drop the patch 'phy: Add LVDS configuration options'. (Robert) > > * Add Robert's R-b tags on patch 1/14, 2/14, 4/14 and 6/14. > > * Drop the 'PC_BUF_PARA_REG' register definition from the pixel combiner bridge > > driver(patch 4/14). (Robert) > > * Make a comment occupy a line in the pixel link bridge driver(patch 6/14). > > (Robert) > > * Introduce a new patch(patch 7/14) to add dt-binding for Control and Status > > Registers module. (Rob) > > * Make imx-ldb-helper be a pure object to be linked with i.MX8qxp LDB bridge > > driver and i.MX8qm LDB bridge driver, instead of a module. Correspondingly, > > rename 'imx8{qm, qxp}-ldb.c' to 'imx8{qm, qxp}-ldb-drv.c'. (Robert) > > * Move 'imx_ldb_helper.h' to 'drivers/gpu/drm/bridge/imx/imx-ldb-helper.h'. > > (Robert) > > * s/__FSL_IMX_LDB__/__IMX_LDB_HELPER__/ for 'imx-ldb-helper.h'. > > > > v3->v4: > > * Use 'fsl,sc-resource' DT property to get the SCU resource ID associated with > > the PXL2DPI instance instead of using alias ID. (Rob) > > * Add Rob's R-b tag on patch 11/14. > > > > v2->v3: > > * Drop 'fsl,syscon' DT properties from fsl,imx8qxp-ldb.yaml and > > fsl,imx8qxp-pxl2dpi.yaml. (Rob) > > * Mention the CSR module controls LDB and PXL2DPI in fsl,imx8qxp-ldb.yaml and > > fsl,imx8qxp-pxl2dpi.yaml. > > * Call syscon_node_to_regmap() to get regmaps from LDB bridge helper driver > > and PXL2DPI bridger driver instead of syscon_regmap_lookup_by_phandle(). > > * Drop two macros from pixel link bridge driver which help define functions > > and define them directly. > > * Properly disable all pixel link controls to POR value by calling > > imx8qxp_pixel_link_disable_all_controls() from > > imx8qxp_pixel_link_bridge_probe(). > > * Add Rob's R-b tags on patch 4/14 and 6/14. > > > > v1->v2: > > * Rebase the series upon the latest drm-misc-next branch(5.11-rc2 based). > > * Use graph schema in the dt-bindings of the bridges. (Laurent) > > * Require all four pixel link output ports in fsl,imx8qxp-pixel-link.yaml. > > (Laurent) > > * Side note i.MX8qm/qxp LDB official name 'pixel mapper' in fsl,imx8qxp-ldb.yaml. > > (Laurent) > > * Mention pixel link is accessed via SCU firmware in fsl,imx8qxp-pixel-link.yaml. > > (Rob) > > * Use enum instead of oneOf + const for the reg property of pixel combiner > > channels in fsl,imx8qxp-pixel-combiner.yaml. (Rob) > > * Rewrite the function to find the next bridge in pixel link bridge driver > > by properly using OF APIs and dropping unnecessary DT validation. (Rob) > > * Drop unnecessary port availability check in i.MX8qxp pixel link to DPI > > bridge driver. > > * Drop unnecessary DT validation from i.MX8qxp LDB bridge driver. > > * Use of_graph_get_endpoint_by_regs() and of_graph_get_remote_endpoint() to > > get the input remote endpoint in imx8qxp_ldb_set_di_id() of i.MX8qxp LDB > > bridge driver. > > * Avoid using companion_port OF node after putting it in > > imx8qxp_ldb_parse_dt_companion() of i.MX8qxp LDB bridge driver. > > * Drop unnecessary check for maximum available LDB channels from > > i.MX8qm LDB bridge driver. > > * Mention i.MX8qm/qxp LDB official name 'pixel mapper' in i.MX8qm/qxp LDB > > bridge drivers and Kconfig help messages. > > > > Liu Ying (14): > > media: uapi: Add some RGB bus formats for i.MX8qm/qxp pixel combiner > > media: docs: Add some RGB bus formats for i.MX8qm/qxp pixel combiner > > dt-bindings: display: bridge: Add i.MX8qm/qxp pixel combiner binding > > drm/bridge: imx: Add i.MX8qm/qxp pixel combiner support > > dt-bindings: display: bridge: Add i.MX8qm/qxp display pixel link > > binding > > drm/bridge: imx: Add i.MX8qm/qxp display pixel link support > > dt-bindings: mfd: Add i.MX8qm/qxp Control and Status Registers module > > binding > > dt-bindings: display: bridge: Add i.MX8qxp pixel link to DPI binding > > drm/bridge: imx: Add i.MX8qxp pixel link to DPI support > > drm/bridge: imx: Add LDB driver helper support > > dt-bindings: display: bridge: Add i.MX8qm/qxp LVDS display bridge > > binding > > drm/bridge: imx: Add LDB support for i.MX8qxp > > drm/bridge: imx: Add LDB support for i.MX8qm > > MAINTAINERS: add maintainer for DRM bridge drivers for i.MX SoCs > > > > .../bindings/display/bridge/fsl,imx8qxp-ldb.yaml | 173 +++++ > > .../display/bridge/fsl,imx8qxp-pixel-combiner.yaml | 144 +++++ > > .../display/bridge/fsl,imx8qxp-pixel-link.yaml | 106 +++ > > .../display/bridge/fsl,imx8qxp-pxl2dpi.yaml | 108 ++++ > > .../devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml | 192 ++++++ > > .../userspace-api/media/v4l/subdev-formats.rst | 156 +++++ > > MAINTAINERS | 10 + > > drivers/gpu/drm/bridge/Kconfig | 2 + > > drivers/gpu/drm/bridge/Makefile | 1 + > > drivers/gpu/drm/bridge/imx/Kconfig | 42 ++ > > drivers/gpu/drm/bridge/imx/Makefile | 9 + > > drivers/gpu/drm/bridge/imx/imx-ldb-helper.c | 232 +++++++ > > drivers/gpu/drm/bridge/imx/imx-ldb-helper.h | 98 +++ > > drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c | 586 +++++++++++++++++ > > drivers/gpu/drm/bridge/imx/imx8qxp-ldb-drv.c | 720 +++++++++++++++++++++ > > .../gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c | 448 +++++++++++++ > > drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c | 427 ++++++++++++ > > drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c | 485 ++++++++++++++ > > include/uapi/linux/media-bus-format.h | 6 +- > > 19 files changed, 3944 insertions(+), 1 deletion(-) > > create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-ldb.yaml > > create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pixel-combiner.yaml > > create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pixel-link.yaml > > create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pxl2dpi.yaml > > create mode 100644 Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml > > create mode 100644 drivers/gpu/drm/bridge/imx/Kconfig > > create mode 100644 drivers/gpu/drm/bridge/imx/Makefile > > create mode 100644 drivers/gpu/drm/bridge/imx/imx-ldb-helper.c > > create mode 100644 drivers/gpu/drm/bridge/imx/imx-ldb-helper.h > > create mode 100644 drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c > > create mode 100644 drivers/gpu/drm/bridge/imx/imx8qxp-ldb-drv.c > > create mode 100644 drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c > > create mode 100644 drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c > > create mode 100644 drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c
