msm/dsi: add panel tp rst configs

dsi:
add panel tp rst configs
to support tp rst & lcd rst power sequences per panel

Change-Id: I7bf17361fa18abb9de9fcb601e9ac39b75dd844c
Signed-off-by: hujing3 <hujing3@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1648198
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Submit-Approved: Jira Key

msm/dsi/dsi_panel.c

@@ -446,7 +446,24 @@ int dsi_panel_reset(struct dsi_panel *panel)
 		}
 	}
 
+	if (r_config->panel_on_tp_rst_enable && gpio_is_valid(r_config->tp_rst_gpio)) {
+		rc = gpio_request(r_config->tp_rst_gpio, "tp_rst_gpio");
+		if (rc) {
+			DSI_ERR("request for tp_rst_gpio failed, rc=%d\n", rc);
+		}
+	}
+
 	for (i = 0; i < r_config->count; i++) {
+		/* set tp rst before lcd rst */
+		if (r_config->panel_on_tp_rst_enable && gpio_is_valid(r_config->tp_rst_gpio)) {
+			DSI_DEBUG("dsp dbg: set tp_rst_gpio to %d\n", r_config->sequence[i].level);
+			gpio_set_value(r_config->tp_rst_gpio, r_config->sequence[i].level);
+
+			if (r_config->tp_rst_post_sleep && r_config->tp_rst_post_sleep < 200) {
+				usleep_range(r_config->tp_rst_post_sleep*1000, (r_config->tp_rst_post_sleep*1000 + 10));
+			}
+		}
+
 		gpio_set_value(r_config->reset_gpio,
 			       r_config->sequence[i].level);
 
@@ -456,6 +473,11 @@ int dsi_panel_reset(struct dsi_panel *panel)
 				(r_config->sequence[i].sleep_ms * 1000) + 100);
 	}
 
+	if (gpio_is_valid(r_config->tp_rst_gpio)) {
+		gpio_free(r_config->tp_rst_gpio);
+		DSI_DEBUG("dsp dbg: gpio_free tp_rst_gpio\n");
+	}
+
 	if (gpio_is_valid(panel->bl_config.en_gpio)) {
 		rc = gpio_direction_output(panel->bl_config.en_gpio, 1);
 		if (rc)
@@ -543,6 +565,7 @@ static bool panel_power_is_alway_on(struct dsi_panel *panel)
 static int dsi_panel_power_on(struct dsi_panel *panel)
 {
 	int rc = 0;
+	struct dsi_panel_reset_config *r_config = &panel->reset_config;
 
 	DSI_INFO("(%s)+\n", panel->name);
 
@@ -551,6 +574,25 @@ static int dsi_panel_power_on(struct dsi_panel *panel)
 		goto exit;
 	}
 
+	if (r_config->panel_on_rst_pull_down) {
+		/* need pull down lcd/tp rst first */
+		if (r_config->panel_on_tp_rst_enable && gpio_is_valid(r_config->tp_rst_gpio)) {
+			rc = gpio_request(r_config->tp_rst_gpio, "tp_rst_gpio");
+			if (rc) {
+				DSI_ERR("request for tp_rst_gpio failed, rc=%d\n", rc);
+			} else {
+				DSI_DEBUG("dsp dbg: set tp_rst_gpio to 0\n");
+				gpio_set_value(r_config->tp_rst_gpio, 0);
+				usleep_range(5500, 5500 + 100);
+			}
+			gpio_free(r_config->tp_rst_gpio);
+		}
+
+		if (gpio_is_valid(r_config->reset_gpio)) {
+			gpio_set_value(r_config->reset_gpio, 0);
+		}
+	}
+
 	rc = dsi_pwr_enable_regulator(&panel->power_info, true);
 	if (rc) {
 		DSI_ERR("[%s] failed to enable vregs, rc=%d\n",
@@ -2522,6 +2564,27 @@ static int dsi_panel_parse_reset_sequence(struct dsi_panel *panel)
 		goto error;
 	}
 
+
+	panel->reset_config.panel_on_tp_rst_enable = utils->read_bool(utils->data,
+			"qcom,mdss-panel-on-tp-rst-enable");
+
+	DSI_DEBUG("[%s] panel_on_tp_rst_enable=%d\n", panel->name,
+						panel->reset_config.panel_on_tp_rst_enable);
+
+	if (panel->reset_config.panel_on_tp_rst_enable) {
+		panel->reset_config.panel_on_rst_pull_down = utils->read_bool(utils->data,
+				"qcom,mdss-panel-on-rst-pull-down");
+
+		rc = utils->read_u32(utils->data,
+						"qcom,mdss-dsi-tp-rst-post-ms", &panel->reset_config.tp_rst_post_sleep);
+		if (rc) {
+			panel->reset_config.tp_rst_post_sleep = 0;
+		} else {
+			DSI_DEBUG("[%s] tp_rst_gpio=%d, tp_rst_post_sleep=%d\n", panel->name,
+						panel->reset_config.tp_rst_gpio, panel->reset_config.tp_rst_post_sleep);
+		}
+	}
+
 	rc = utils->read_u32_array(utils->data, "qcom,mdss-dsi-reset-sequence",
 					arr_32, length);
 	if (rc) {
@@ -2678,6 +2741,9 @@ static int dsi_panel_parse_gpios(struct dsi_panel *panel)
 		goto error;
 	}
 
+	panel->reset_config.tp_rst_gpio = utils->get_named_gpio(utils->data,
+					"qcom,mdss-dsi-tp-rst-gpio", 0);
+
 	panel->reset_config.disp_en_gpio = utils->get_named_gpio(utils->data,
 						"qcom,5v-boost-gpio",
 						0);

msm/dsi/dsi_panel.h

@@ -182,8 +182,12 @@ struct dsi_panel_reset_config {
 	int reset_gpio;
 	int disp_en_gpio;
 	int lcd_mode_sel_gpio;
+	int tp_rst_gpio;
+	u32 tp_rst_post_sleep;
 	u32 mode_sel_state;
 
+	bool panel_on_rst_pull_down;
+	bool panel_on_tp_rst_enable;
 	bool reset_force_pull_low;
 };