Android亮屏速度分析总结

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
old mode 100644
new mode 100755
index 17c3b94..2b39662
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -504,6 +504,7 @@ static int panel_simple_enable(struct drm_panel *panel)
    }
    p->enabled = true;
+    printk("%s exit\n", __func__);
    return 0;
 }
diff --git a/drivers/input/keyboard/rk_keys.c b/drivers/input/keyboard/rk_keys.c
old mode 100644
new mode 100755
index fed5ced..537b599
--- a/drivers/input/keyboard/rk_keys.c
+++ b/drivers/input/keyboard/rk_keys.c
@@ -134,6 +134,10 @@ static void keys_timer(unsigned long _data)
        key_dbg(pdata, "%skey[%s]: report event[%d] state[%d]\n",
            button->type == TYPE_ADC ? "adc" : "gpio",
            button->desc, button->code, button->state);
+        if(strcmp(button->desc, "power") == 0)
+        printk("%skey[%s]: report event[%d] state[%d]\n",
+            button->type == TYPE_ADC ? "adc" : "gpio",
+            button->desc, button->code, button->state);
        input_event(input, EV_KEY, button->code, button->state);
        input_sync(input);
    }

static void dpm_show_time(ktime_t starttime, pm_message_t state, char *info)                            
{        
  ktime_t calltime;
  u64 usecs64;
  int usecs;
  calltime = ktime_get();
  usecs64 = ktime_to_ns(ktime_sub(calltime, starttime));
  do_div(usecs64, NSEC_PER_USEC);
  usecs = usecs64;
  if (usecs == 0)
    usecs = 1; 
  pr_info("PM: %s%s%s of devices complete after %ld.%03ld msecs\n",
    info ?: "", info ? " " : "", pm_verb(state.event),
    usecs / USEC_PER_MSEC, usecs % USEC_PER_MSEC);
}

echo N > /sys/module/printk/parameters/console_suspend
//使控制台在suspend最后才关闭，这样可以打印出休眠过程完整信息
echo 1 > /sys/power/pm_print_times
//使能调试变量

--- a/arch/arm/boot/dts/rk3288-pad.dts
+++ b/arch/arm/boot/dts/rk3288-pad.dts
@@ -169,10 +169,10 @@
        dsi,lanes = <4>;
        prepare-delay-ms = <20>;
-        init-delay-ms = <20>;
-        enable-delay-ms = <100>;
-        disable-delay-ms = <20>;
-        unprepare-delay-ms = <20>;
+        //init-delay-ms = <20>;
+        enable-delay-ms = <1>;
+        disable-delay-ms = <1>;
+        unprepare-delay-ms = <1>;
        panel-init-sequence = [
            15 32 02 8F A5
            15 01 02 83 00

--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -139,6 +139,9 @@
 #define to_vop_win(x) container_of(x, struct vop_win, base)
 #define to_vop_plane_state(x) container_of(x, struct vop_plane_state, base)
+/*add by VENDOR_PATCH for seep up the drm vop driver at 2018/1/18 for RK Defect #191554, VENDOR_PATCH PAD100-193*/
+#define VENDOR_PATCH
+
 struct vop_zpos {
    int win_id;
    int zpos;
@@ -868,9 +871,15 @@ static void vop_disable_all_planes(struct vop *vop)
    vop_disable_allwin(vop);
    vop_cfg_done(vop);
+#ifdef VENDOR_PATCH
    ret = readx_poll_timeout_atomic(vop_is_allwin_disabled,
                    vop, active, active,
+                    0, 100 * 1000);
+#else
+    ret = readx_poll_timeout_atomic(vop_is_allwin_disabled,
+                vop, active, active,
                    0, 500 * 1000);
+#endif
    if (ret)
        dev_err(vop->dev, "wait win close timeout\n");
 }
@@ -2215,20 +2224,36 @@ static size_t vop_crtc_bandwidth(struct drm_crtc *crtc,
    u16 htotal = adjusted_mode->crtc_htotal;
    u16 vdisplay = adjusted_mode->crtc_vdisplay;
    int clock = adjusted_mode->crtc_clock;
+#ifndef VENDOR_PATCH
    struct vop *vop = to_vop(crtc);
    const struct vop_data *vop_data = vop->data;
+#endif
    struct vop_plane_state *vop_plane_state;
    struct drm_plane_state *pstate;
    struct vop_bandwidth *pbandwidth;
    struct drm_plane *plane;
    u64 bandwidth;
    int i, cnt = 0;
+#ifdef VENDOR_PATCH
+    int plane_num = 0;
+#endif
    if (!htotal || !vdisplay)
        return 0;
+#ifndef VENDOR_PATCH
    pbandwidth = kmalloc_array(vop_data->win_size, sizeof(*pbandwidth),
                  GFP_KERNEL);
+#else
+    for_each_plane_in_state(state, plane, pstate, i) {
+        if (pstate->crtc != crtc || !pstate->fb)
+            continue;
+        plane_num++;
+    }
+    pbandwidth = kmalloc_array(plane_num, sizeof(*pbandwidth),
+                 GFP_KERNEL);
+#endif
+
    if (!pbandwidth)
        return -ENOMEM;
@@ -2421,7 +2446,10 @@ static void vop_crtc_enable(struct drm_crtc *crtc)
    rockchip_set_system_status(sys_status);
    mutex_lock(&vop->vop_lock);
    vop_initial(crtc);
-
+#ifdef VENDOR_PATCH
+    vop_disable_allwin(vop);
+    VOP_CTRL_SET(vop, standby, 0);
+#endif
    VOP_CTRL_SET(vop, dclk_pol, 1);
    val = (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ?
          0 : BIT(HSYNC_POSITIVE);
@@ -2549,8 +2577,9 @@ static void vop_crtc_enable(struct drm_crtc *crtc)
    /*
     * enable vop, all the register would take effect when vop exit standby
     */
+#ifndef VENDOR_PATCH
    VOP_CTRL_SET(vop, standby, 0);
-
+#endif
    enable_irq(vop->irq);
    drm_crtc_vblank_on(crtc);
    mutex_unlock(&vop->vop_lock);