disp: msm: dsi: modify handling of debugfs initialization

Add support to allow creation of debugfs node only if
CONFIG_DEBUG_FS is enabled.

Change-Id: I1ae2c4188a99e3ed88f59fc021efc01407bf942d
Signed-off-by: Harigovindan P <[email protected]>
Signed-off-by: Satya Rama Aditya Pinapala <[email protected]>

msm/dsi/dsi_ctrl.c

@@ -83,6 +83,7 @@ static const struct of_device_id msm_dsi_of_match[] = {
 	{}
 };
 
+#ifdef CONFIG_DEBUG_FS
 static ssize_t debugfs_state_info_read(struct file *file,
 				       char __user *buff,
 				       size_t count,
@@ -209,6 +210,11 @@ static int dsi_ctrl_debugfs_init(struct dsi_ctrl *dsi_ctrl,
 	struct dentry *dir, *state_file, *reg_dump;
 	char dbg_name[DSI_DEBUG_NAME_LEN];
 
+	if (!dsi_ctrl || !parent) {
+		DSI_CTRL_ERR(dsi_ctrl, "Invalid params\n");
+		return -EINVAL;
+	}
+
 	dir = debugfs_create_dir(dsi_ctrl->name, parent);
 	if (IS_ERR_OR_NULL(dir)) {
 		rc = PTR_ERR(dir);
@@ -256,6 +262,17 @@ static int dsi_ctrl_debugfs_deinit(struct dsi_ctrl *dsi_ctrl)
 	debugfs_remove(dsi_ctrl->debugfs_root);
 	return 0;
 }
+#else
+static int dsi_ctrl_debugfs_init(struct dsi_ctrl *dsi_ctrl,
+				 struct dentry *parent)
+{
+	return 0;
+}
+static int dsi_ctrl_debugfs_deinit(struct dsi_ctrl *dsi_ctrl)
+{
+	return 0;
+}
+#endif /* CONFIG_DEBUG_FS */
 
 static inline struct msm_gem_address_space*
 dsi_ctrl_get_aspace(struct dsi_ctrl *dsi_ctrl,
@@ -2043,7 +2060,7 @@ int dsi_ctrl_drv_init(struct dsi_ctrl *dsi_ctrl, struct dentry *parent)
 {
 	int rc = 0;
 
-	if (!dsi_ctrl || !parent) {
+	if (!dsi_ctrl) {
 		DSI_CTRL_ERR(dsi_ctrl, "Invalid params\n");
 		return -EINVAL;
 	}

msm/dsi/dsi_display.c

@@ -476,23 +476,6 @@ error:
 		display->panel->esd_config.esd_enabled = false;
 }
 
-static bool dsi_display_is_te_based_esd(struct dsi_display *display)
-{
-	u32 status_mode = 0;
-
-	if (!display->panel) {
-		DSI_ERR("Invalid panel data\n");
-		return false;
-	}
-
-	status_mode = display->panel->esd_config.status_mode;
-
-	if (status_mode == ESD_MODE_PANEL_TE &&
-			gpio_is_valid(display->disp_te_gpio))
-		return true;
-	return false;
-}
-
 /* Allocate memory for cmd dma tx buffer */
 static int dsi_host_alloc_cmd_tx_buffer(struct dsi_display *display)
 {
@@ -1081,6 +1064,24 @@ int dsi_display_set_power(struct drm_connector *connector,
 	return rc;
 }
 
+#ifdef CONFIG_DEBUG_FS
+static bool dsi_display_is_te_based_esd(struct dsi_display *display)
+{
+	u32 status_mode = 0;
+
+	if (!display->panel) {
+		DSI_ERR("Invalid panel data\n");
+		return false;
+	}
+
+	status_mode = display->panel->esd_config.status_mode;
+
+	if (status_mode == ESD_MODE_PANEL_TE &&
+			gpio_is_valid(display->disp_te_gpio))
+		return true;
+	return false;
+}
+
 static ssize_t debugfs_dump_info_read(struct file *file,
 				      char __user *user_buf,
 				      size_t user_len,
@@ -1649,6 +1650,16 @@ static int dsi_display_debugfs_deinit(struct dsi_display *display)
 
 	return 0;
 }
+#else
+static int dsi_display_debugfs_init(struct dsi_display *display)
+{
+	return 0;
+}
+static int dsi_display_debugfs_deinit(struct dsi_display *display)
+{
+	return 0;
+}
+#endif /* CONFIG_DEBUG_FS */
 
 static void adjust_timing_by_ctrl_count(const struct dsi_display *display,
 					struct dsi_display_mode *mode)