drm/amd/display: Set MPC_SPLIT_DYNAMIC for DCN301

Since DC version 3.2.226, DC started to use a new internal commit
sequence that better deals with hardware limitations. Usually, DC adopts
split pipe dynamics to improve the display bandwidth and, in some cases,
to save power. This commit sets MPC_SPLIT_DYNAMIC for DCN301, improving
the bandwidth and fixing the cursor bug on KDE when it tries hardware
rotation.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2247
Cc: Melissa Wen <[email protected]>
Cc: Xaver Hugl <[email protected]>
Reviewed-by: Melissa Wen <[email protected]>
Acked-by: Qingqing Zhuo <[email protected]>
Acked-by: Hamza Mahfooz <[email protected]>
Signed-off-by: Rodrigo Siqueira <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: Rodrigo Siqueira

drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c

@@ -687,7 +687,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 	.disable_clock_gate = true,
 	.disable_pplib_clock_request = true,
 	.disable_pplib_wm_range = true,
-	.pipe_split_policy = MPC_SPLIT_AVOID,
+	.pipe_split_policy = MPC_SPLIT_DYNAMIC,
 	.force_single_disp_pipe_split = false,
 	.disable_dcc = DCC_ENABLE,
 	.vsr_support = true,