On Wed, Feb 25, 2026 at 01:45:24PM +0800, Pengyu Luo wrote: > According to the REG_DSI_7nm_PHY_CMN_GLBL_RESCODE_OFFSET_TOP_CTRL > value(0x3c) on Windows OS, we can confirm that the SC8280XP uses the > 5nm (v4.2) DSI PHY. > > Since SC8280XP and SA8775P have the same DSI version (v2.5.1), using > SA8775P configuration.
Then we should not need separate config here. Use sa8775p as a fallback compatible. > > Signed-off-by: Pengyu Luo <[email protected]> > --- > drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > index 7937266de..4a37c50d9 100644 > --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > @@ -565,6 +565,8 @@ static const struct of_device_id dsi_phy_dt_match[] = { > .data = &dsi_phy_5nm_sar2130p_cfgs }, > { .compatible = "qcom,sc7280-dsi-phy-7nm", > .data = &dsi_phy_7nm_7280_cfgs }, > + { .compatible = "qcom,sc8280xp-dsi-phy-5nm", > + .data = &dsi_phy_5nm_8775p_cfgs }, > { .compatible = "qcom,sm6375-dsi-phy-7nm", > .data = &dsi_phy_7nm_6375_cfgs }, > { .compatible = "qcom,sm8350-dsi-phy-5nm", > -- > 2.53.0 > -- With best wishes Dmitry
