Hi Liu On Tue, 2021-03-23 at 17:09 +0800, Liu Ying wrote: > 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. Thank you very much. After a little bit of fiddling I can confirm that this also works fine on a Toradex Colibri iMX8X [1] with either a Capacitive Touch Display 10.1" LVDS which has a Logic Technologies LT170410- 2WHC [2] single-channel panel inside or a dual-channel LG LP156WF1 full HD panel. During boot I noticed quite some clocking/power domain related messages: [ 0.537965] gpt0_clk: failed to attached the power domain -2 [ 0.562372] dc1_disp0_clk: failed to attached the power domain -2 [ 0.562800] dc1_disp0_clk: failed to get clock parent -22 [ 0.562858] dc1_disp0_clk: failed to get clock rate -22 [ 0.563059] dc1_disp1_clk: failed to attached the power domain -2 [ 0.563463] dc1_disp1_clk: failed to get clock parent -22 [ 0.563514] dc1_disp1_clk: failed to get clock rate -22 [ 0.563773] dc1_pll0_clk: failed to attached the power domain -2 [ 0.564174] dc1_pll0_clk: failed to get clock rate -22 [ 0.564413] dc1_pll1_clk: failed to attached the power domain -2 [ 0.564838] dc1_pll1_clk: failed to get clock rate -22 [ 0.565099] dc1_bypass0_clk: failed to attached the power domain -2 [ 0.565516] dc1_bypass0_clk: failed to get clock rate -22 [ 0.565755] dc1_bypass1_clk: failed to attached the power domain -2 [ 0.566159] dc1_bypass1_clk: failed to get clock rate -22 [ 0.574493] lvds0_i2c0_clk: failed to attached the power domain -2 [ 0.574894] lvds0_i2c0_clk: failed to get clock rate -22 [ 0.575134] lvds0_i2c1_clk: failed to attached the power domain -2 [ 0.575526] lvds0_i2c1_clk: failed to get clock rate -22 [ 0.575785] lvds0_pwm0_clk: failed to attached the power domain -2 [ 0.576189] lvds0_pwm0_clk: failed to get clock rate -22 [ 0.576417] lvds1_i2c0_clk: failed to attached the power domain -2 [ 0.576854] lvds1_i2c0_clk: failed to get clock rate -22 [ 0.577129] lvds1_i2c1_clk: failed to attached the power domain -2 [ 0.577554] lvds1_i2c1_clk: failed to get clock rate -22 [ 0.577787] lvds1_pwm0_clk: failed to attached the power domain -2 [ 0.578198] lvds1_pwm0_clk: failed to get clock rate -22 [ 0.578464] mipi_csi0_core_clk: failed to attached the power domain -2 [ 0.579104] mipi_csi0_esc_clk: failed to attached the power domain -2 [ 0.579738] mipi_csi0_i2c0_clk: failed to attached the power domain -2 [ 0.580368] mipi_csi0_pwm0_clk: failed to attached the power domain -2 And the following repeats a couple dozens of times: [ 4.391495] dc1_disp0_clk: failed to get clock parent -22 [ 4.398532] dc1_disp1_clk: failed to get clock parent -22 And finally it spits the following: [ 4.670303] imx8qxp-lpcg-clk 59580000.clock-controller: deferred probe timeout, ignoring dependency [ 4.679629] imx8qxp-lpcg-clk: probe of 59580000.clock-controller failed with error -110 Despite those messages the displays do work fine once booted. I am currently running this with SCFW, SECO, TF-A and U-Boot based off NXP's latest downstream BSP 5.4.70- 2.3.0. Not sure whether or not especially the used SCFW version could cause some issues. What SCFW are you using? Full boot logs may be found here [3]. You may add the following to the whole series. Tested-by: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx> # Colibri iMX8X, LT170410-2WHC, LP156WF1 Thanks again and just let us know if we may test anything else for you. [1] commit ba5a5615d54f ("arm64: dts: freescale: add initial support for colibri imx8x") [2] commit 5728fe7fa539 ("drm/panel: simple: add display timings for logic technologies displays") [3] https://share.toradex.com/s30wwspcr9iwyrg > Liu Ying Cheers Marcel