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Commit 0449a3a0 authored by Jayaprakash's avatar Jayaprakash
Browse files

disp: msm: sde: avoid zero BW votes in cases where planes are staged 



During low power state transitions, populate MNOC AB, MNOC per_pipe_ib
and core_clk values from the old state in cases where current state
values are zeros from userspace but planes are staged.

Change-Id: Iaafdbc9be78d4cfb12ee9cefdcf96030c05f5c6d
Signed-off-by: default avatarJayaprakash <jmadiset@codeaurora.org>
parent 7fe48e6e

msm/sde/sde_core_perf.c

+15 −8
Original line number Diff line number Diff line
@@ -105,12 +105,15 @@ static void _sde_core_perf_calc_doze_suspend(struct drm_crtc *crtc, 
	if (!old_perf)

		return;



	if (!perf->bw_ctl[SDE_POWER_HANDLE_DBUS_ID_LLCC] &&

		!perf->max_per_pipe_ib[SDE_POWER_HANDLE_DBUS_ID_LLCC] &&

		!perf->bw_ctl[SDE_POWER_HANDLE_DBUS_ID_EBI] &&

		!perf->max_per_pipe_ib[SDE_POWER_HANDLE_DBUS_ID_EBI] &&

	if (!perf->bw_ctl[SDE_POWER_HANDLE_DBUS_ID_MNOC] &&

		!perf->max_per_pipe_ib[SDE_POWER_HANDLE_DBUS_ID_MNOC] &&

		state->plane_mask) {



		perf->bw_ctl[SDE_POWER_HANDLE_DBUS_ID_MNOC] =

			old_perf->bw_ctl[SDE_POWER_HANDLE_DBUS_ID_MNOC];

		perf->max_per_pipe_ib[SDE_POWER_HANDLE_DBUS_ID_MNOC] =

			old_perf->max_per_pipe_ib

					[SDE_POWER_HANDLE_DBUS_ID_MNOC];

		perf->bw_ctl[SDE_POWER_HANDLE_DBUS_ID_LLCC] =

			old_perf->bw_ctl[SDE_POWER_HANDLE_DBUS_ID_LLCC];

		perf->max_per_pipe_ib[SDE_POWER_HANDLE_DBUS_ID_LLCC] =
@@ -120,6 +123,9 @@ static void _sde_core_perf_calc_doze_suspend(struct drm_crtc *crtc, 
		perf->max_per_pipe_ib[SDE_POWER_HANDLE_DBUS_ID_EBI] =

		  old_perf->max_per_pipe_ib[SDE_POWER_HANDLE_DBUS_ID_EBI];



		if (!old_perf->core_clk_rate)

			perf->core_clk_rate = old_perf->core_clk_rate;



		for (i = 0; i < new_cstate->num_connectors; i++) {

			conn = new_cstate->connectors[i];

			if (!conn)
@@ -130,13 +136,14 @@ static void _sde_core_perf_calc_doze_suspend(struct drm_crtc *crtc, 
				is_doze_suspend = true;

		}



		if (!is_doze_suspend && conn && c_conn) {

			SDE_DEBUG("No BW, planes:%x dpms_mode:%d lpmode:%d\n",

		if (!is_doze_suspend && conn && c_conn)

			SDE_ERROR("No BW, planes:%x dpms_mode:%d lpmode:%d\n",

				state->plane_mask, c_conn->dpms_mode,

				sde_connector_get_lp(conn));

		if (conn && c_conn)

			SDE_EVT32(state->plane_mask, c_conn->dpms_mode,

				sde_connector_get_lp(conn), SDE_EVTLOG_ERROR);

		}

				sde_connector_get_lp(conn), is_doze_suspend,

				SDE_EVTLOG_ERROR);

	}

}