X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fcore%2Fuclass.c;h=d609b170e1a9efd4e0f6ed07ddf7a34706ef5530;hb=31e60ffa05b0952be3df8f584155567afdee50bd;hp=630b2e7336850fbd2a5574ca523cb4bc5a20681d;hpb=40bb637dae10abff32ca2d952fd443e0e09fd524;p=u-boot

diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c
index 630b2e7336..d609b170e1 100644
--- a/drivers/core/uclass.c
+++ b/drivers/core/uclass.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2013 Google, Inc
  *
  * (C) Copyright 2012
  * Pavel Herrmann <morpheus.ibis@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
@@ -158,6 +157,20 @@ const char *uclass_get_name(enum uclass_id id)
 	return uc->uc_drv->name;
 }
 
+enum uclass_id uclass_get_by_name(const char *name)
+{
+	int i;
+
+	for (i = 0; i < UCLASS_COUNT; i++) {
+		struct uclass_driver *uc_drv = lists_uclass_lookup(i);
+
+		if (uc_drv && !strcmp(uc_drv->name, name))
+			return i;
+	}
+
+	return UCLASS_INVALID;
+}
+
 int uclass_find_device(enum uclass_id id, int index, struct udevice **devp)
 {
 	struct uclass *uc;
@@ -295,6 +308,7 @@ int uclass_find_device_by_ofnode(enum uclass_id id, ofnode node,
 	struct udevice *dev;
 	int ret;
 
+	log(LOGC_DM, LOGL_DEBUG, "Looking for %s\n", ofnode_get_name(node));
 	*devp = NULL;
 	if (!ofnode_valid(node))
 		return -ENODEV;
@@ -303,13 +317,19 @@ int uclass_find_device_by_ofnode(enum uclass_id id, ofnode node,
 		return ret;
 
 	list_for_each_entry(dev, &uc->dev_head, uclass_node) {
+		log(LOGC_DM, LOGL_DEBUG_CONTENT, "      - checking %s\n",
+		    dev->name);
 		if (ofnode_equal(dev_ofnode(dev), node)) {
 			*devp = dev;
-			return 0;
+			goto done;
 		}
 	}
+	ret = -ENODEV;
 
-	return -ENODEV;
+done:
+	log(LOGC_DM, LOGL_DEBUG, "   - result for %s: %s (ret=%d)\n",
+	    ofnode_get_name(node), *devp ? (*devp)->name : "(none)", ret);
+	return ret;
 }
 
 #if CONFIG_IS_ENABLED(OF_CONTROL)
@@ -324,8 +344,7 @@ static int uclass_find_device_by_phandle(enum uclass_id id,
 	int ret;
 
 	*devp = NULL;
-	find_phandle = fdtdec_get_int(gd->fdt_blob, dev_of_offset(parent), name,
-				      -1);
+	find_phandle = dev_read_u32_default(parent, name, -1);
 	if (find_phandle <= 0)
 		return -ENOENT;
 	ret = uclass_get(id, &uc);
@@ -335,7 +354,7 @@ static int uclass_find_device_by_phandle(enum uclass_id id,
 	list_for_each_entry(dev, &uc->dev_head, uclass_node) {
 		uint phandle;
 
-		phandle = fdt_get_phandle(gd->fdt_blob, dev_of_offset(dev));
+		phandle = dev_read_phandle(dev);
 
 		if (phandle == find_phandle) {
 			*devp = dev;
@@ -367,8 +386,7 @@ int uclass_get_device_by_driver(enum uclass_id id,
 	return -ENODEV;
 }
 
-int uclass_get_device_tail(struct udevice *dev, int ret,
-				  struct udevice **devp)
+int uclass_get_device_tail(struct udevice *dev, int ret, struct udevice **devp)
 {
 	if (ret)
 		return ret;
@@ -438,13 +456,42 @@ int uclass_get_device_by_ofnode(enum uclass_id id, ofnode node,
 	struct udevice *dev;
 	int ret;
 
+	log(LOGC_DM, LOGL_DEBUG, "Looking for %s\n", ofnode_get_name(node));
 	*devp = NULL;
 	ret = uclass_find_device_by_ofnode(id, node, &dev);
+	log(LOGC_DM, LOGL_DEBUG, "   - result for %s: %s (ret=%d)\n",
+	    ofnode_get_name(node), dev ? dev->name : "(none)", ret);
 
 	return uclass_get_device_tail(dev, ret, devp);
 }
 
 #if CONFIG_IS_ENABLED(OF_CONTROL)
+int uclass_get_device_by_phandle_id(enum uclass_id id, uint phandle_id,
+				    struct udevice **devp)
+{
+	struct udevice *dev;
+	struct uclass *uc;
+	int ret;
+
+	*devp = NULL;
+	ret = uclass_get(id, &uc);
+	if (ret)
+		return ret;
+
+	list_for_each_entry(dev, &uc->dev_head, uclass_node) {
+		uint phandle;
+
+		phandle = dev_read_phandle(dev);
+
+		if (phandle == phandle_id) {
+			*devp = dev;
+			return uclass_get_device_tail(dev, ret, devp);
+		}
+	}
+
+	return -ENODEV;
+}
+
 int uclass_get_device_by_phandle(enum uclass_id id, struct udevice *parent,
 				 const char *name, struct udevice **devp)
 {
@@ -494,6 +541,33 @@ int uclass_next_device(struct udevice **devp)
 	return uclass_get_device_tail(dev, ret, devp);
 }
 
+int uclass_first_device_check(enum uclass_id id, struct udevice **devp)
+{
+	int ret;
+
+	*devp = NULL;
+	ret = uclass_find_first_device(id, devp);
+	if (ret)
+		return ret;
+	if (!*devp)
+		return 0;
+
+	return device_probe(*devp);
+}
+
+int uclass_next_device_check(struct udevice **devp)
+{
+	int ret;
+
+	ret = uclass_find_next_device(devp);
+	if (ret)
+		return ret;
+	if (!*devp)
+		return 0;
+
+	return device_probe(*devp);
+}
+
 int uclass_bind_device(struct udevice *dev)
 {
 	struct uclass *uc;