On Thu May 23, 2024 at 11:06 AM CEST, wrote: > Hi Lucas, > > On 10/05/2024 08:51, Luca Weiss wrote: > > On Tue Apr 23, 2024 at 4:08 PM CEST, wrote: > >> On 23/04/2024 15:03, Konrad Dybcio wrote: > >>> > >>> > >>> On 4/5/24 12:19, Luca Weiss wrote: > > <snip> > > > > > Next, with DP 4 lane (not working on mainline but still plugged into a > > screen) the diff is quite a bit bigger. > > > > See attachments for the full files: > > * usb_1_qmpphy_20240503_151052_android_4lane.txt > > * usb_1_qmpphy_20240503_122443_mainline_4lane.txt > > > > Not attaching the diff because it's quite a lot > > $ diff --ignore-case -U0 usb_1_qmpphy_20240503_151052_android_4lane.txt usb_1_qmpphy_20240503_122443_mainline_4lane.txt > > > > Not sure this is helpful to anyone, but at least wanted to share what > > I've done so far here. > > Thanks a lot for the traces, it founds out the QPHY_V3_DP_COM_PHY_MODE_CTRL stays at 0x3, > which means the mode doesn't get broadcasted to the phy because.... the retimer only broadcasts > the orientation and not the mode... and it works on the HDKs and the X13s because they don't have retimers. Hi Neil, This was it! > > So I made the changes in nb7vpq904m and ptn36502 drivers to get the next mux and broadcast the typec mode, > if you find time could you test it ? > > Bjorn could you also test on the rb3gen2 ? > > The changes: > https://git.codelinaro.org/neil.armstrong/linux/-/commit/a61fb3b816ecbe28a12480367d9e09b700ec09e1 With this ptn36502 patch on top, I can confirm that DP 4-lane seems to work on qcm6490-fairphone-fp5 smartphone with DP over USB-C! Tested with a USB-C dongle that only has a HDMI port on the other side (so no USB), and cat'ing dp_debug while connected showed num_lanes = 4 So feel free to add my: Tested-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx> Regards Luca > https://git.codelinaro.org/neil.armstrong/linux/-/commit/f6f976ff692bad430cd945f02b835e355f19632b > > Thanks, > Neil > > > > > Regards > > Luca > > > >> > >> Neil > >> > >>> > >>> Konrad > > > >
