On Mon, Jun 09, 2025 at 08:21:57PM +0800, Yongxing Mou wrote:
> This change enables support for Multi-Stream Transport (MST), allowing
> each controller to handle up to two DisplayPort streams. As all
> necessary code for MST support was already implemented in the previous
> series of patches.
>
> Signed-off-by: Yongxing Mou <[email protected]>
> ---
> drivers/gpu/drm/msm/dp/dp_display.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c
> b/drivers/gpu/drm/msm/dp/dp_display.c
> index
> 75f2fd7c75eae81e5c843f8ae2d1ce12ad0cad7e..16196dcc9ff4ac6a35b6bcd8d433b08f7d18fe5b
> 100644
> --- a/drivers/gpu/drm/msm/dp/dp_display.c
> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
> @@ -127,8 +127,10 @@ struct msm_dp_desc {
> };
>
> static const struct msm_dp_desc msm_dp_desc_sa8775p[] = {
> - { .io_start = 0x0af54000, .id = MSM_DP_CONTROLLER_0,
> .wide_bus_supported = true },
> - { .io_start = 0x0af5c000, .id = MSM_DP_CONTROLLER_1,
> .wide_bus_supported = true },
> + { .io_start = 0x0af54000, .id = MSM_DP_CONTROLLER_0,
> .wide_bus_supported = true,
> + .mst_streams = 2},
I thought few patches ago you wrote that this controller should support
4 MST streams.
> + { .io_start = 0x0af5c000, .id = MSM_DP_CONTROLLER_1,
> .wide_bus_supported = true,
> + .mst_streams = 2},
> { .io_start = 0x22154000, .id = MSM_DP_CONTROLLER_2,
> .wide_bus_supported = true },
> { .io_start = 0x2215c000, .id = MSM_DP_CONTROLLER_3,
> .wide_bus_supported = true },
> {}
>
> --
> 2.34.1
>
--
With best wishes
Dmitry
