On Wed, Feb 19, 2025 at 05:56:14PM +0800, Yongxing Mou wrote: > > > On 2025/2/12 20:26, Dmitry Baryshkov wrote: > > On Wed, 12 Feb 2025 at 12:54, Krzysztof Kozlowski <k...@kernel.org> wrote: > > > > > > On 12/02/2025 11:41, Dmitry Baryshkov wrote: > > > > On Wed, Feb 12, 2025 at 03:12:24PM +0800, Yongxing Mou wrote: > > > > > We need to enable mst for qcs8300, dp0 controller will support 2 > > > > > streams > > > > > output. So not reuse sm8650 dp controller driver and will add a new > > > > > driver > > > > > patch for qcs8300 mst feature. Modify the corresponding dt-bingding > > > > > file > > > > > to compatible with the qcs8300-dp. > > > > > > > > NAK for a different reason: QCS8300 is still compatible with SM8650. > > > > Enable features instead of randomly reshuffle compats. In this case, > > > > enable MST for both architectures. > > > > > > > So the original patch was probably correct... > > > > I have no idea. I'd let Yongxing Mou to comment on this. It would be > > nice instead of getting a lengthy explanation of obvious items to get > > an answer to an actual question: is QCS8300 compatible with SM8650 or > > not. In other words whether they can support the same number of MST > > streams on each controller or not. > > > Hi, in hardware, the SM8650's DP controller supports 2 INTFs, while the > QCS8300's DP0 controller supports 4 INTFs.In sst mode, only one INTF will be > used, they are same, but for MST, sm8650 supports 2 streams while qcs8300 > support 4 streams. Thanks.
So, they are not compatible. Please use separate compatible. -- With best wishes Dmitry
