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Commit 16fffd7a authored by Ingrid Gallardo's avatar Ingrid Gallardo
Browse files

msm: mdss: switch mdp context between active-only and active+sleep 



This change modifies MDP vote to go to Active-Only in
an early stage when bandwidth is not needed and updates
the vote to Active+Sleep when bandwidth must be guaranteed.

Change-Id: I6ccb7a225f97416128518c990d881fa139ec1963
Signed-off-by: default avatarIngrid Gallardo <ingridg@codeaurora.org>
parent 534e3f6f

drivers/video/msm/mdss/mdss.h

+1 −0
Original line number Diff line number Diff line
@@ -315,6 +315,7 @@ struct mdss_data_type { 
	u32 nrt_axi_port_cnt;

	u32 bus_channels;

	u32 curr_bw_uc_idx;

	u32 ao_bw_uc_idx; /* active only idx */

	struct msm_bus_scale_pdata *bus_scale_table;

	u32 max_bw_low;

	u32 max_bw_high;

drivers/video/msm/mdss/mdss_mdp.c

+15 −1
Original line number Diff line number Diff line
@@ -397,6 +397,7 @@ static int mdss_mdp_bus_scale_set_quota(u64 ab_quota_rt, u64 ab_quota_nrt, 
		}

	}

	mdss_res->curr_bw_uc_idx = new_uc_idx;

	mdss_res->ao_bw_uc_idx = new_uc_idx;



	if ((mdss_res->bus_ref_cnt == 0) && mdss_res->curr_bw_uc_idx) {

		rc = 0;
@@ -832,9 +833,11 @@ void mdss_bus_bandwidth_ctrl(int enable) 


	if (changed) {

		if (!enable) {

			if (!mdata->handoff_pending)

			if (!mdata->handoff_pending) {

				msm_bus_scale_client_update_request(

						mdata->bus_hdl, 0);

				mdata->ao_bw_uc_idx = 0;

			}

			pm_runtime_mark_last_busy(&mdata->pdev->dev);

			pm_runtime_put_autosuspend(&mdata->pdev->dev);

		} else {
@@ -879,8 +882,13 @@ void mdss_mdp_clk_ctrl(int enable) 
	if (changed) {

		if (enable) {

			pm_runtime_get_sync(&mdata->pdev->dev);



			mdss_update_reg_bus_vote(mdata->reg_bus_clt,

				VOTE_INDEX_19_MHZ);



			/* Active+Sleep */

			msm_bus_scale_client_update_context(mdata->bus_hdl,

				false, mdata->curr_bw_uc_idx);

		}



		mdata->clk_ena = enable;
@@ -892,8 +900,14 @@ void mdss_mdp_clk_ctrl(int enable) 
			mdss_mdp_clk_update(MDSS_CLK_MDP_VSYNC, enable);



		if (!enable) {



			/* Active-Only */

			msm_bus_scale_client_update_context(mdata->bus_hdl,

				true, mdata->ao_bw_uc_idx);



			mdss_update_reg_bus_vote(mdata->reg_bus_clt,

				VOTE_INDEX_DISABLE);



			pm_runtime_mark_last_busy(&mdata->pdev->dev);

			pm_runtime_put_autosuspend(&mdata->pdev->dev);

		}

drivers/video/msm/mdss/mdss_mdp_intf_cmd.c

+3 −0
Original line number Diff line number Diff line
@@ -485,6 +485,9 @@ int mdss_mdp_resource_control(struct mdss_mdp_ctl *ctl, u32 sw_event) 
		 *	cancel as well.

		 */



		/* update the active only vote */

		mdata->ao_bw_uc_idx = mdata->curr_bw_uc_idx;



		/* Cancel GATE Work Item */

		if (cancel_work_sync(&ctx->gate_clk_work)) {

			pr_debug("%s gate work canceled\n", __func__);