Merge "disp: msm: add inverted display brightness value property"

msm/dsi/dsi_panel.c

@@ -506,6 +506,9 @@ static int dsi_panel_update_backlight(struct dsi_panel *panel,
 
 	dsi = &panel->mipi_device;
 
+	if (panel->bl_config.bl_inverted_dbv)
+		bl_lvl = (((bl_lvl & 0xff) << 8) | (bl_lvl >> 8));
+
 	rc = mipi_dsi_dcs_set_display_brightness(dsi, bl_lvl);
 	if (rc < 0)
 		DSI_ERR("failed to update dcs backlight:%d\n", bl_lvl);
@@ -2183,6 +2186,9 @@ static int dsi_panel_parse_bl_config(struct dsi_panel *panel)
 		panel->bl_config.brightness_max_level = val;
 	}
 
+	panel->bl_config.bl_inverted_dbv = utils->read_bool(utils->data,
+		"qcom,mdss-dsi-bl-inverted-dbv");
+
 	if (panel->bl_config.type == DSI_BACKLIGHT_PWM) {
 		rc = dsi_panel_parse_bl_pwm_config(panel);
 		if (rc) {

msm/dsi/dsi_panel.h

@@ -115,6 +115,7 @@ struct dsi_backlight_config {
 	u32 bl_level;
 	u32 bl_scale;
 	u32 bl_scale_sv;
+	bool bl_inverted_dbv;
 
 	int en_gpio;
 	/* PWM params */