[why]
With Scatter Gather enabled, HUBP underflows during MPO enabled video
playback. hubp_init has a register write that fixes this problem, but
the register is cleared when HUBP gets power gated.
[how]
Make a call to hubp_init during enable_plane, so that the fix can
be applied after HUBP powers back on again.
Signed-off-by: Zi Yu Liao <ziyu.liao@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
/* enable DCFCLK current DCHUB */
pipe_ctx->plane_res.hubp->funcs->hubp_clk_cntl(pipe_ctx->plane_res.hubp, true);
+ /* initialize HUBP on power up */
+ pipe_ctx->plane_res.hubp->funcs->hubp_init(pipe_ctx->plane_res.hubp);
+
/* make sure OPP_PIPE_CLOCK_EN = 1 */
pipe_ctx->stream_res.opp->funcs->opp_pipe_clock_control(
pipe_ctx->stream_res.opp,