staging: tidspbridge: Remove cfg_get_object()

As the services directory is going to be removed, the cfg_get_object
function has also to be removed.

Since the driver object handle is retrieved from the drv_data structure,
then the word "Registry" is replaced by "driver data" in the comments.

Also, the hdrv_obj is not used in function omap34_xx_bridge_remove(), so
it is removed.
Signed-off-by: Ivan Gomez Castellanos <ivan.gomez@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/tidspbridge/include/dspbridge/cfg.h

@@ -40,23 +40,6 @@
  */
 extern int cfg_get_cd_version(u32 *version);
 
-/*
- *  ======== cfg_get_object ========
- *  Purpose:
- *      Retrieve the Driver Object handle From the Registry
- *  Parameters:
- *      value:      Ptr to location to store the value.
- *      dw_type      Type of Object to Get
- *  Returns:
- *      0:    Success.
- *  Requires:
- *      CFG initialized.
- *  Ensures:
- *      0:    *value is set to the retrieved u32(non-Zero).
- *      else:       *value is set to 0L.
- */
-extern int cfg_get_object(u32 *value, u8 dw_type);
-
 /*
  *  ======== cfg_get_perf_value ========
  *  Purpose:

drivers/staging/tidspbridge/pmgr/dev.c

@@ -148,6 +148,7 @@ int dev_create_device(struct dev_object **device_obj,
 	struct io_attrs io_mgr_attrs;
 	u32 num_windows;
 	struct drv_object *hdrv_obj = NULL;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 	int status = 0;
 	DBC_REQUIRE(refs > 0);
 	DBC_REQUIRE(device_obj != NULL);
@@ -163,10 +164,15 @@ int dev_create_device(struct dev_object **device_obj,
 
 	/*  Get the Bridge driver interface functions */
 	bridge_drv_entry(&drv_fxns, driver_file_name);
-	if (cfg_get_object((u32 *) &hdrv_obj, REG_DRV_OBJECT)) {
-		/* don't propogate CFG errors from this PROC function */
+
+	/* Retrieve the Object handle from the driver data */
+	if (drv_datap && drv_datap->drv_object) {
+		hdrv_obj = drv_datap->drv_object;
+	} else {
 		status = -EPERM;
+		pr_err("%s: Failed to retrieve the object handle\n", __func__);
 	}
+
 	/* Create the device object, and pass a handle to the Bridge driver for
 	 * storage. */
 	if (!status) {

drivers/staging/tidspbridge/rmgr/drv.c

@@ -438,11 +438,15 @@ u32 drv_get_first_dev_object(void)
 {
 	u32 dw_dev_object = 0;
 	struct drv_object *pdrv_obj;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 
-	if (!cfg_get_object((u32 *) &pdrv_obj, REG_DRV_OBJECT)) {
+	if (drv_datap && drv_datap->drv_object) {
+		pdrv_obj = drv_datap->drv_object;
 		if ((pdrv_obj->dev_list != NULL) &&
 		    !LST_IS_EMPTY(pdrv_obj->dev_list))
 			dw_dev_object = (u32) lst_first(pdrv_obj->dev_list);
+	} else {
+		pr_err("%s: Failed to retrieve the object handle\n", __func__);
 	}
 
 	return dw_dev_object;
@@ -458,14 +462,17 @@ u32 drv_get_first_dev_extension(void)
 {
 	u32 dw_dev_extension = 0;
 	struct drv_object *pdrv_obj;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 
-	if (!cfg_get_object((u32 *) &pdrv_obj, REG_DRV_OBJECT)) {
-
+	if (drv_datap && drv_datap->drv_object) {
+		pdrv_obj = drv_datap->drv_object;
 		if ((pdrv_obj->dev_node_string != NULL) &&
 		    !LST_IS_EMPTY(pdrv_obj->dev_node_string)) {
 			dw_dev_extension =
 			    (u32) lst_first(pdrv_obj->dev_node_string);
 		}
+	} else {
+		pr_err("%s: Failed to retrieve the object handle\n", __func__);
 	}
 
 	return dw_dev_extension;
@@ -482,18 +489,22 @@ u32 drv_get_next_dev_object(u32 hdev_obj)
 {
 	u32 dw_next_dev_object = 0;
 	struct drv_object *pdrv_obj;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 
 	DBC_REQUIRE(hdev_obj != 0);
 
-	if (!cfg_get_object((u32 *) &pdrv_obj, REG_DRV_OBJECT)) {
-
+	if (drv_datap && drv_datap->drv_object) {
+		pdrv_obj = drv_datap->drv_object;
 		if ((pdrv_obj->dev_list != NULL) &&
 		    !LST_IS_EMPTY(pdrv_obj->dev_list)) {
 			dw_next_dev_object = (u32) lst_next(pdrv_obj->dev_list,
 							    (struct list_head *)
 							    hdev_obj);
 		}
+	} else {
+		pr_err("%s: Failed to retrieve the object handle\n", __func__);
 	}
+
 	return dw_next_dev_object;
 }
 
@@ -509,16 +520,20 @@ u32 drv_get_next_dev_extension(u32 dev_extension)
 {
 	u32 dw_dev_extension = 0;
 	struct drv_object *pdrv_obj;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 
 	DBC_REQUIRE(dev_extension != 0);
 
-	if (!cfg_get_object((u32 *) &pdrv_obj, REG_DRV_OBJECT)) {
+	if (drv_datap && drv_datap->drv_object) {
+		pdrv_obj = drv_datap->drv_object;
 		if ((pdrv_obj->dev_node_string != NULL) &&
 		    !LST_IS_EMPTY(pdrv_obj->dev_node_string)) {
 			dw_dev_extension =
 			    (u32) lst_next(pdrv_obj->dev_node_string,
 					   (struct list_head *)dev_extension);
 		}
+	} else {
+		pr_err("%s: Failed to retrieve the object handle\n", __func__);
 	}
 
 	return dw_dev_extension;
@@ -616,6 +631,7 @@ int drv_request_resources(u32 dw_context, u32 *dev_node_strg)
 	int status = 0;
 	struct drv_object *pdrv_object;
 	struct drv_ext *pszdev_node;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 
 	DBC_REQUIRE(dw_context != 0);
 	DBC_REQUIRE(dev_node_strg != NULL);
@@ -626,7 +642,11 @@ int drv_request_resources(u32 dw_context, u32 *dev_node_strg)
 	 *  list.
 	 */
 
-	status = cfg_get_object((u32 *) &pdrv_object, REG_DRV_OBJECT);
+	if (!drv_datap || !drv_datap->drv_object)
+		status = -ENODATA;
+	else
+		pdrv_object = drv_datap->drv_object;
+
 	if (!status) {
 		pszdev_node = kzalloc(sizeof(struct drv_ext), GFP_KERNEL);
 		if (pszdev_node) {

drivers/staging/tidspbridge/rmgr/drv_interface.c

@@ -394,11 +394,14 @@ static int __devexit omap34_xx_bridge_remove(struct platform_device *pdev)
 	dev_t devno;
 	bool ret;
 	int status = 0;
-	void *hdrv_obj = NULL;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 
-	status = cfg_get_object((u32 *) &hdrv_obj, REG_DRV_OBJECT);
-	if (status)
+	/* Retrieve the Object handle from the driver data */
+	if (!drv_datap || !drv_datap->drv_object) {
+		status = -ENODATA;
+		pr_err("%s: Failed to retrieve the object handle\n", __func__);
 		goto func_cont;
+	}
 
 #ifdef CONFIG_TIDSPBRIDGE_DVFS
 	if (cpufreq_unregister_notifier(&iva_clk_notifier,

drivers/staging/tidspbridge/rmgr/dspdrv.c

@@ -121,6 +121,7 @@ bool dsp_deinit(u32 device_context)
 	bool ret = true;
 	u32 device_node;
 	struct mgr_object *mgr_obj = NULL;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 
 	while ((device_node = drv_get_first_dev_extension()) != 0) {
 		(void)dev_remove_device((struct cfg_devnode *)device_node);
@@ -131,10 +132,14 @@ bool dsp_deinit(u32 device_context)
 
 	(void)drv_destroy((struct drv_object *)device_context);
 
-	/* Get the Manager Object from Registry
+	/* Get the Manager Object from driver data
 	 * MGR Destroy will unload the DCD dll */
-	if (!cfg_get_object((u32 *) &mgr_obj, REG_MGR_OBJECT))
+	if (drv_datap && drv_datap->mgr_object) {
+		mgr_obj = drv_datap->mgr_object;
 		(void)mgr_destroy(mgr_obj);
+	} else {
+		pr_err("%s: Failed to retrieve the object handle\n", __func__);
+	}
 
 	api_exit();
 

drivers/staging/tidspbridge/rmgr/mgr.c

@@ -123,6 +123,7 @@ int mgr_enum_node_info(u32 node_id, struct dsp_ndbprops *pndb_props,
 	u32 node_index = 0;
 	struct dcd_genericobj gen_obj;
 	struct mgr_object *pmgr_obj = NULL;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 
 	DBC_REQUIRE(pndb_props != NULL);
 	DBC_REQUIRE(pu_num_nodes != NULL);
@@ -130,10 +131,14 @@ int mgr_enum_node_info(u32 node_id, struct dsp_ndbprops *pndb_props,
 	DBC_REQUIRE(refs > 0);
 
 	*pu_num_nodes = 0;
-	/* Get The Manager Object from the Registry */
-	status = cfg_get_object((u32 *) &pmgr_obj, REG_MGR_OBJECT);
-	if (status)
+	/* Get the Manager Object from the driver data */
+	if (!drv_datap || !drv_datap->mgr_object) {
+		status = -ENODATA;
+		pr_err("%s: Failed to retrieve the object handle\n", __func__);
 		goto func_cont;
+	} else {
+		pmgr_obj = drv_datap->mgr_object;
+	}
 
 	DBC_ASSERT(pmgr_obj);
 	/* Forever loop till we hit failed or no more items in the
@@ -195,6 +200,7 @@ int mgr_enum_processor_info(u32 processor_id,
 	struct drv_object *hdrv_obj;
 	u8 dev_type;
 	struct cfg_devnode *dev_node;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 	bool proc_detect = false;
 
 	DBC_REQUIRE(processor_info != NULL);
@@ -203,7 +209,15 @@ int mgr_enum_processor_info(u32 processor_id,
 	DBC_REQUIRE(refs > 0);
 
 	*pu_num_procs = 0;
-	status = cfg_get_object((u32 *) &hdrv_obj, REG_DRV_OBJECT);
+
+	/* Retrieve the Object handle from the driver data */
+	if (!drv_datap || !drv_datap->drv_object) {
+		status = -ENODATA;
+		pr_err("%s: Failed to retrieve the object handle\n", __func__);
+	} else {
+		hdrv_obj = drv_datap->drv_object;
+	}
+
 	if (!status) {
 		status = drv_get_dev_object(processor_id, hdrv_obj, &hdev_obj);
 		if (!status) {
@@ -219,8 +233,10 @@ int mgr_enum_processor_info(u32 processor_id,
 	if (status)
 		goto func_end;
 
-	/* Get The Manager Object from the Registry */
-	if (cfg_get_object((u32 *) &pmgr_obj, REG_MGR_OBJECT)) {
+	/* Get The Manager Object from the driver data */
+	if (drv_datap && drv_datap->mgr_object) {
+		pmgr_obj = drv_datap->mgr_object;
+	} else {
 		dev_dbg(bridge, "%s: Failed to get MGR Object\n", __func__);
 		goto func_end;
 	}

drivers/staging/tidspbridge/rmgr/proc.c

@@ -280,6 +280,7 @@ proc_attach(u32 processor_id,
 	struct proc_object *p_proc_object = NULL;
 	struct mgr_object *hmgr_obj = NULL;
 	struct drv_object *hdrv_obj = NULL;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 	u8 dev_type;
 
 	DBC_REQUIRE(refs > 0);
@@ -291,9 +292,13 @@ proc_attach(u32 processor_id,
 	}
 
 	/* Get the Driver and Manager Object Handles */
-	status = cfg_get_object((u32 *) &hdrv_obj, REG_DRV_OBJECT);
-	if (!status)
-		status = cfg_get_object((u32 *) &hmgr_obj, REG_MGR_OBJECT);
+	if (!drv_datap || !drv_datap->drv_object || !drv_datap->mgr_object) {
+		status = -ENODATA;
+		pr_err("%s: Failed to get object handles\n", __func__);
+	} else {
+		hdrv_obj = drv_datap->drv_object;
+		hmgr_obj = drv_datap->mgr_object;
+	}
 
 	if (!status) {
 		/* Get the Device Object */
@@ -440,6 +445,7 @@ int proc_auto_start(struct cfg_devnode *dev_node_obj,
 	char sz_exec_file[MAXCMDLINELEN];
 	char *argv[2];
 	struct mgr_object *hmgr_obj = NULL;
+	struct drv_data *drv_datap = dev_get_drvdata(bridge);
 	u8 dev_type;
 
 	DBC_REQUIRE(refs > 0);
@@ -447,9 +453,13 @@ int proc_auto_start(struct cfg_devnode *dev_node_obj,
 	DBC_REQUIRE(hdev_obj != NULL);
 
 	/* Create a Dummy PROC Object */
-	status = cfg_get_object((u32 *) &hmgr_obj, REG_MGR_OBJECT);
-	if (status)
+	if (!drv_datap || !drv_datap->mgr_object) {
+		status = -ENODATA;
+		pr_err("%s: Failed to retrieve the object handle\n", __func__);
 		goto func_end;
+	} else {
+		hmgr_obj = drv_datap->mgr_object;
+	}
 
 	p_proc_object = kzalloc(sizeof(struct proc_object), GFP_KERNEL);
 	if (p_proc_object == NULL) {

drivers/staging/tidspbridge/services/cfg.c

@@ -30,50 +30,6 @@
 #include <dspbridge/cfg.h>
 #include <dspbridge/drv.h>
 
-/*
- *  ======== cfg_get_object ========
- *  Purpose:
- *      Retrieve the Object handle from the Registry
- */
-int cfg_get_object(u32 *value, u8 dw_type)
-{
-	int status = -EINVAL;
-	struct drv_data *drv_datap = dev_get_drvdata(bridge);
-
-	DBC_REQUIRE(value != NULL);
-
-	if (!drv_datap)
-		return -EPERM;
-
-	switch (dw_type) {
-	case (REG_DRV_OBJECT):
-		if (drv_datap->drv_object) {
-			*value = (u32)drv_datap->drv_object;
-			status = 0;
-		} else {
-			status = -ENODATA;
-		}
-		break;
-	case (REG_MGR_OBJECT):
-		if (drv_datap->mgr_object) {
-			*value = (u32)drv_datap->mgr_object;
-			status = 0;
-		} else {
-			status = -ENODATA;
-		}
-		break;
-
-	default:
-		break;
-	}
-	if (status) {
-		*value = 0;
-		pr_err("%s: Failed, status 0x%x\n", __func__, status);
-	}
-	DBC_ENSURE((!status && *value != 0) || (status && *value == 0));
-	return status;
-}
-
 /*
  *  ======== cfg_set_dev_object ========
  *  Purpose: