Tps65994 Device

[Loree Naumann]

Hereyou will be asked to provide answers to a few questions to ensure the TPS65994 is the correct device for your application. Note that the TPS65994 is only recommended for use in IPC or PC designs following an Intel based refence design.

Today I'm turning to you regarding the above-mentioned set up which I have been trying to get to work on a stable base on and off for over two and a half years now. Though HP has been very eager to help me with my problem, they have finally ceased to provide me with new ideas. Gigabyte, on the other hand, has not even made the attempt to answer my requests as their product has run out of warranty anyway.

The issue with the above-mentioned set up is that the EliteBook refuses to detect my Gaming Box for no apparent reason. Windows doesn't even detect the presence of an external device as far as my start-up logs are concerned. The only solution that appears to work on and off is a CMOS reset, until I disconnect either the EliteBook or the Gaming Box from power. Then I have to repeat the whole procedure again until the components start to play ball for no apparent reason.

HP has swapped my motherboard two times, they even have provided me with one of their g3 TB docking, which has worked out of the box. Oddly, the Gaming Box works perfectly fine when I daisy-chain it behind the G3 Docking.

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3. try to force on the AORUS Gaming Box in case there is a race condition with the BIOS expecting the TB3 enclosure to be on for the TB3 port to activate, hence why daisy-chaining through the G3 Dock works as a workaround:

After one hour of going through your solutions, hence studying the manual of the BCU, I have to admit that I still have no clue about how to make TB-settings visible in my bios, nor power management settings under windows.

PCIe_PM-disable.bat is custom batch file I added to the HP BiosConfigUtility accompanying my 2018 HP ZBook Studio G5 build. It is designed for H/E 45W CPUs which host their PCIe ports off a PCH rather than Intel U/G SOCs that host the PCIe port on the CPU itself.

Regarding this work around, from what I understand in the postings regarding this solution, the problem here seems to be that the PSU doesn't want to power on with the AMD Card inserted. This is not the case in my setup. The PSU starts up nicely, as soon as I connect the Gaming Box with the Notebook. Oddly, the Notebook then doesn't even accept the power delivery from the Gaming Box.

As you are still under HP Warranty, maybe consider ask them for a side-grade/upgrade to a system that they confirm on their end has BIOS toggable Thunderbolt security options so can boot TB3 storage or attach a TB3 eGPU directly without using a TB3 daisy-chaining dock?

Yeah, I was already under the impression that freedom of choice wasn't on HP's mind when designing this machine. After all, it is a business notebook, made to equip a large size of employees with a capable machine that is easy to integrate and service. Just wanted to double-check with you.

It was just the bargain on eBay that looked so capable for the occasional gaming session on paper (and it actually has proven its capabilities in many more use cases to me to this date) that I couldn't resist.

Since I'm really not much of a gamer anymore, and the Gaming Box only serves as a port replicator/ power brick these days, it would be easiest to sell it for a used G4 docking instead. As I mentioned in the last post, technology is progressing, and I just realized that a used G4 has been dropping in price quite substantially.

We are using i.mx8mq in our project. The system uses MIPI as the main display, the DP port signal was connected to TUSB546 and TPS65994AD to configure the mux to achieve the DP alt mode. We failed to light up the display through the DP alt mode with some type-C to HDMI dongle ( or hub with HDMI output port). When the issue happened, we will see error log from console output like below and also reports invalid edid.

[ 2.428568][ T1] [drm] Initialized imx-dcss 1.0.0 20190917 for 32e00000.display-controller on minor 0

[ 2.434186][ T8] hub 2-0:1.0: USB hub found

[ 2.451544][ T1] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_mailbox_validate_receive [cdns_mhdp_drmcore]] Hmmm spurious mailbox data maybe, cleaning out...1:2:130 vs 1:2:2

[ 2.457423][ T8] hub 2-0:1.0: 1 port detected

[ 2.468960][ T1] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_mailbox_validate_receive [cdns_mhdp_drmcore]] Hmmm spurious mailbox data maybe, cleaning out...1:2:130 vs 1:2:2

[ 2.504887][ T1] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_mailbox_validate_receive [cdns_mhdp_drmcore]] Hmmm spurious mailbox data maybe, cleaning out...1:2:130 vs 1:2:2

[ 2.527717][ T1] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_mailbox_validate_receive [cdns_mhdp_drmcore]] Hmmm spurious mailbox data maybe, cleaning out...1:2:130 vs 1:2:2

[ 2.543435][ T1] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_get_edid_block [cdns_mhdp_drmcore]] *ERROR* get block[0] edid failed: -22

[ 2.555852][ T1] [drm:cdns_dp_connector_get_modes [cdns_mhdp_drmcore]] *ERROR* Invalid edid

[ 2.565811][ T1] imx-dcss 32e00000.display-controller: [drm] fb0: imx-dcssdrmfb frame buffer device

[ 2.582262][ T42] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_mailbox_validate_receive [cdns_mhdp_drmcore]] Hmmm spurious mailbox data maybe, cleaning out...1:2:130 vs 1:2:2

[ 2.605112][ T42] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_mailbox_validate_receive [cdns_mhdp_drmcore]] Hmmm spurious mailbox data maybe, cleaning out...1:2:130 vs 1:2:2

[ 2.628436][ T42] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_mailbox_validate_receive [cdns_mhdp_drmcore]] Hmmm spurious mailbox data maybe, cleaning out...1:2:130 vs 1:2:2

[ 2.631334][ T8] nwl-dsi 30a00000.mipi-dsi: [drm:nwl_dsi_probe [nwl_dsi]] Using LCDIF as input source

[ 2.652052][ T42] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_mailbox_validate_receive [cdns_mhdp_drmcore]] Hmmm spurious mailbox data maybe, cleaning out...1:2:130 vs 1:2:2

[ 2.653712][ T90] usb 1-1: new high-speed USB device number 2 using xhci-hcd

[ 2.655654][ T8] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/bus@30800000/mipi-dsi@30a00000 to encoder None-34: -517[ 2.656162][ T1] tps65994 0-0020: current version: Ver.0.47

[ 2.669366][ T42] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_get_edid_block [cdns_mhdp_drmcore]] *ERROR* get block[0] edid failed: -22

[ 2.716303][ T42] [drm:cdns_dp_connector_get_modes [cdns_mhdp_drmcore]] *ERROR* Invalid edid

[ 2.738275][ T8] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/bus@30800000/mipi-dsi@30a00000 to encoder None-34: -517

[ 2.790179][ T42] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_mailbox_validate_receive [cdns_mhdp_drmcore]] Hmmm spurious mailbox data maybe, cleaning out...1:3:6 vs 1:3:5

[ 2.793264][ T8] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/bus@30800000/mipi-dsi@30a00000 to encoder None-34: -517

[ 2.810516][ T42] cdns-mhdp-imx 32c00000.hdmi: [drm:cdns_mhdp_mailbox_validate_receive [cdns_mhdp_drmcore]] Hmmm spurious mailbox data maybe, cleaning out...1:3:6 vs 1:3:5

[ 2.834094][ T1] __power_supply_register: Expected proper parent device for 'battery'

[ 2.837333][ T90] usb 1-1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3

[ 2.842554][ T1] __power_supply_register: Expected proper parent device for 'usb'

[ 2.851125][ T90] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0

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