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Commit 534e3f6f authored by Ingrid Gallardo's avatar Ingrid Gallardo
Browse files

msm: mdss: add support for Early Clock Gating 



Add support to gate the mdp clocks as soon as the
frame transfer is done for command mode panels.

Change-Id: I8325f26806ff3163edd87b9e3c01cd045f2aec77
Signed-off-by: default avatarIngrid Gallardo <ingridg@codeaurora.org>
parent 2fbb7685

drivers/video/msm/mdss/mdss.h

+1 −0
Original line number Diff line number Diff line
@@ -335,6 +335,7 @@ struct mdss_data_type { 
	u32 *clock_levels;

	u32 nclk_lvl;



	u32 enable_gate;

	u32 enable_bw_release;

	u32 enable_rotator_bw_release;

	u32 serialize_wait4pp;

drivers/video/msm/mdss/mdss_fb.c

+2 −0
Original line number Diff line number Diff line
@@ -2877,6 +2877,8 @@ int mdss_fb_atomic_commit(struct fb_info *info, 
			__ioctl_transition_dyn_mode_state(mfd,

				MSMFB_ATOMIC_COMMIT, 1);

			ret = mfd->mdp.atomic_validate(mfd, file, commit_v1);

			if (!ret)

				mfd->validate_pending = true;

		}

		goto end;

	} else {

drivers/video/msm/mdss/mdss_fb.h

+2 −0
Original line number Diff line number Diff line
@@ -258,6 +258,8 @@ struct msm_fb_data_type { 
	int idle_time;

	struct delayed_work idle_notify_work;



	bool validate_pending;



	int op_enable;

	u32 fb_imgType;

	int panel_reconfig;

drivers/video/msm/mdss/mdss_mdp.c

+5 −2
Original line number Diff line number Diff line
@@ -872,8 +872,9 @@ void mdss_mdp_clk_ctrl(int enable) 
	if (changed)

		MDSS_XLOG(mdp_clk_cnt, enable, current->pid);



	pr_debug("%s: clk_cnt=%d changed=%d enable=%d\n",

			__func__, mdp_clk_cnt, changed, enable);

	pr_debug("%pS: clk_cnt=%d changed=%d enable=%d\n",

			__builtin_return_address(0), mdp_clk_cnt,

			changed, enable);



	if (changed) {

		if (enable) {
@@ -1106,6 +1107,8 @@ static void mdss_mdp_hw_rev_caps_init(struct mdss_data_type *mdata) 
	mdata->hflip_buffer_reused = true;

	/* prevent disable of prefill calculations */

	mdata->min_prefill_lines = 0xffff;

	/* clock gating feature is disabled by default */

	mdata->enable_gate = true;



	switch (mdata->mdp_rev) {

	case MDSS_MDP_HW_REV_107:

drivers/video/msm/mdss/mdss_mdp.h

+1 −0
Original line number Diff line number Diff line
@@ -599,6 +599,7 @@ struct mdss_overlay_private { 
	struct list_head pipes_cleanup;

	struct list_head rot_proc_list;

	bool mixer_swap;

	u32 resources_state;



	/* list of buffers that can be reused */

	struct list_head bufs_chunks;