Merge tag 'opp-updates-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm

Pull OPP (Operating Performance Points) updates for 5.19-rc1 from Viresh
Kumar:

 - Minor update to dt-binding for Qcom's opp-v2-kryo-cpu (Yassine
   Oudjana).

 - Use list iterator only inside the list_for_each_entry loop (Xiaomeng
   Tong, and Jakob Koschel).

 - New APIs related to finding OPP based on interconnect bandwidth
   (Krzysztof Kozlowski).

 - Fix the missing of_node_put() in _bandwidth_supported() (Dan
   Carpenter).

 - Cleanups (Krzysztof Kozlowski, and Viresh Kumar).

* tag 'opp-updates-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  opp: Reorder definition of ceil/floor helpers
  opp: Add apis to retrieve opps with interconnect bandwidth
  dt-bindings: opp: opp-v2-kryo-cpu: Remove SMEM
  opp: use list iterator only inside the loop
  opp: replace usage of found with dedicated list iterator variable
  PM: opp: simplify with dev_err_probe()
  OPP: call of_node_put() on error path in _bandwidth_supported()

5 files changed, 291 insertions, 157 deletions

diff --git a/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml b/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
index 8c2e9ac5f68d..30f7b596d609 100644
--- a/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
+++ b/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
@@ -17,10 +17,10 @@ description: |
   the CPU frequencies subset and voltage value of each OPP varies based on
   the silicon variant in use.
   Qualcomm Technologies, Inc. Process Voltage Scaling Tables
-  defines the voltage and frequency value based on the msm-id in SMEM
-  and speedbin blown in the efuse combination.
-  The qcom-cpufreq-nvmem driver reads the msm-id and efuse value from the SoC
-  to provide the OPP framework with required information (existing HW bitmap).
+  defines the voltage and frequency value based on the speedbin blown in
+  the efuse combination.
+  The qcom-cpufreq-nvmem driver reads the efuse value from the SoC to provide
+  the OPP framework with required information (existing HW bitmap).
   This is used to determine the voltage and frequency value for each OPP of
   operating-points-v2 table when it is parsed by the OPP framework.
 
@@ -50,15 +50,11 @@ patternProperties:
         description: |
           A single 32 bit bitmap value, representing compatible HW.
           Bitmap:
-          0:  MSM8996 V3, speedbin 0
-          1:  MSM8996 V3, speedbin 1
-          2:  MSM8996 V3, speedbin 2
-          3:  unused
-          4:  MSM8996 SG, speedbin 0
-          5:  MSM8996 SG, speedbin 1
-          6:  MSM8996 SG, speedbin 2
-          7-31:  unused
-        maximum: 0x77
+          0:  MSM8996, speedbin 0
+          1:  MSM8996, speedbin 1
+          2:  MSM8996, speedbin 2
+          3-31:  unused
+        maximum: 0x7
 
       clock-latency-ns: true
 
@@ -184,19 +180,19 @@ examples:
             opp-307200000 {
                 opp-hz = /bits/ 64 <307200000>;
                 opp-microvolt = <905000 905000 1140000>;
-                opp-supported-hw = <0x77>;
+                opp-supported-hw = <0x7>;
                 clock-latency-ns = <200000>;
             };
-            opp-1593600000 {
-                opp-hz = /bits/ 64 <1593600000>;
+            opp-1401600000 {
+                opp-hz = /bits/ 64 <1401600000>;
                 opp-microvolt = <1140000 905000 1140000>;
-                opp-supported-hw = <0x71>;
+                opp-supported-hw = <0x5>;
                 clock-latency-ns = <200000>;
             };
-            opp-2188800000 {
-                opp-hz = /bits/ 64 <2188800000>;
+            opp-1593600000 {
+                opp-hz = /bits/ 64 <1593600000>;
                 opp-microvolt = <1140000 905000 1140000>;
-                opp-supported-hw = <0x10>;
+                opp-supported-hw = <0x1>;
                 clock-latency-ns = <200000>;
             };
         };
@@ -209,25 +205,25 @@ examples:
             opp-307200000 {
                 opp-hz = /bits/ 64 <307200000>;
                 opp-microvolt = <905000 905000 1140000>;
-                opp-supported-hw = <0x77>;
+                opp-supported-hw = <0x7>;
                 clock-latency-ns = <200000>;
             };
-            opp-1593600000 {
-                opp-hz = /bits/ 64 <1593600000>;
+            opp-1804800000 {
+                opp-hz = /bits/ 64 <1804800000>;
                 opp-microvolt = <1140000 905000 1140000>;
-                opp-supported-hw = <0x70>;
+                opp-supported-hw = <0x6>;
                 clock-latency-ns = <200000>;
             };
-            opp-2150400000 {
-                opp-hz = /bits/ 64 <2150400000>;
+            opp-1900800000 {
+                opp-hz = /bits/ 64 <1900800000>;
                 opp-microvolt = <1140000 905000 1140000>;
-                opp-supported-hw = <0x31>;
+                opp-supported-hw = <0x4>;
                 clock-latency-ns = <200000>;
             };
-            opp-2342400000 {
-                opp-hz = /bits/ 64 <2342400000>;
+            opp-2150400000 {
+                opp-hz = /bits/ 64 <2150400000>;
                 opp-microvolt = <1140000 905000 1140000>;
-                opp-supported-hw = <0x10>;
+                opp-supported-hw = <0x1>;
                 clock-latency-ns = <200000>;
             };
         };
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 740407252298..84063eaebb91 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -456,103 +456,6 @@ struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_exact);
 
-/**
- * dev_pm_opp_find_level_exact() - search for an exact level
- * @dev:		device for which we do this operation
- * @level:		level to search for
- *
- * Return: Searches for exact match in the opp table and returns pointer to the
- * matching opp if found, else returns ERR_PTR in case of error and should
- * be handled using IS_ERR. Error return values can be:
- * EINVAL:	for bad pointer
- * ERANGE:	no match found for search
- * ENODEV:	if device not found in list of registered devices
- *
- * The callers are required to call dev_pm_opp_put() for the returned OPP after
- * use.
- */
-struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev,
-					       unsigned int level)
-{
-	struct opp_table *opp_table;
-	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
-
-	opp_table = _find_opp_table(dev);
-	if (IS_ERR(opp_table)) {
-		int r = PTR_ERR(opp_table);
-
-		dev_err(dev, "%s: OPP table not found (%d)\n", __func__, r);
-		return ERR_PTR(r);
-	}
-
-	mutex_lock(&opp_table->lock);
-
-	list_for_each_entry(temp_opp, &opp_table->opp_list, node) {
-		if (temp_opp->level == level) {
-			opp = temp_opp;
-
-			/* Increment the reference count of OPP */
-			dev_pm_opp_get(opp);
-			break;
-		}
-	}
-
-	mutex_unlock(&opp_table->lock);
-	dev_pm_opp_put_opp_table(opp_table);
-
-	return opp;
-}
-EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_exact);
-
-/**
- * dev_pm_opp_find_level_ceil() - search for an rounded up level
- * @dev:		device for which we do this operation
- * @level:		level to search for
- *
- * Return: Searches for rounded up match in the opp table and returns pointer
- * to the  matching opp if found, else returns ERR_PTR in case of error and
- * should be handled using IS_ERR. Error return values can be:
- * EINVAL:	for bad pointer
- * ERANGE:	no match found for search
- * ENODEV:	if device not found in list of registered devices
- *
- * The callers are required to call dev_pm_opp_put() for the returned OPP after
- * use.
- */
-struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev,
-					      unsigned int *level)
-{
-	struct opp_table *opp_table;
-	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
-
-	opp_table = _find_opp_table(dev);
-	if (IS_ERR(opp_table)) {
-		int r = PTR_ERR(opp_table);
-
-		dev_err(dev, "%s: OPP table not found (%d)\n", __func__, r);
-		return ERR_PTR(r);
-	}
-
-	mutex_lock(&opp_table->lock);
-
-	list_for_each_entry(temp_opp, &opp_table->opp_list, node) {
-		if (temp_opp->available && temp_opp->level >= *level) {
-			opp = temp_opp;
-			*level = opp->level;
-
-			/* Increment the reference count of OPP */
-			dev_pm_opp_get(opp);
-			break;
-		}
-	}
-
-	mutex_unlock(&opp_table->lock);
-	dev_pm_opp_put_opp_table(opp_table);
-
-	return opp;
-}
-EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_ceil);
-
 static noinline struct dev_pm_opp *_find_freq_ceil(struct opp_table *opp_table,
 						   unsigned long *freq)
 {
@@ -729,6 +632,223 @@ struct dev_pm_opp *dev_pm_opp_find_freq_ceil_by_volt(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_ceil_by_volt);
 
+/**
+ * dev_pm_opp_find_level_exact() - search for an exact level
+ * @dev:		device for which we do this operation
+ * @level:		level to search for
+ *
+ * Return: Searches for exact match in the opp table and returns pointer to the
+ * matching opp if found, else returns ERR_PTR in case of error and should
+ * be handled using IS_ERR. Error return values can be:
+ * EINVAL:	for bad pointer
+ * ERANGE:	no match found for search
+ * ENODEV:	if device not found in list of registered devices
+ *
+ * The callers are required to call dev_pm_opp_put() for the returned OPP after
+ * use.
+ */
+struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev,
+					       unsigned int level)
+{
+	struct opp_table *opp_table;
+	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+
+	opp_table = _find_opp_table(dev);
+	if (IS_ERR(opp_table)) {
+		int r = PTR_ERR(opp_table);
+
+		dev_err(dev, "%s: OPP table not found (%d)\n", __func__, r);
+		return ERR_PTR(r);
+	}
+
+	mutex_lock(&opp_table->lock);
+
+	list_for_each_entry(temp_opp, &opp_table->opp_list, node) {
+		if (temp_opp->level == level) {
+			opp = temp_opp;
+
+			/* Increment the reference count of OPP */
+			dev_pm_opp_get(opp);
+			break;
+		}
+	}
+
+	mutex_unlock(&opp_table->lock);
+	dev_pm_opp_put_opp_table(opp_table);
+
+	return opp;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_exact);
+
+/**
+ * dev_pm_opp_find_level_ceil() - search for an rounded up level
+ * @dev:		device for which we do this operation
+ * @level:		level to search for
+ *
+ * Return: Searches for rounded up match in the opp table and returns pointer
+ * to the  matching opp if found, else returns ERR_PTR in case of error and
+ * should be handled using IS_ERR. Error return values can be:
+ * EINVAL:	for bad pointer
+ * ERANGE:	no match found for search
+ * ENODEV:	if device not found in list of registered devices
+ *
+ * The callers are required to call dev_pm_opp_put() for the returned OPP after
+ * use.
+ */
+struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev,
+					      unsigned int *level)
+{
+	struct opp_table *opp_table;
+	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+
+	opp_table = _find_opp_table(dev);
+	if (IS_ERR(opp_table)) {
+		int r = PTR_ERR(opp_table);
+
+		dev_err(dev, "%s: OPP table not found (%d)\n", __func__, r);
+		return ERR_PTR(r);
+	}
+
+	mutex_lock(&opp_table->lock);
+
+	list_for_each_entry(temp_opp, &opp_table->opp_list, node) {
+		if (temp_opp->available && temp_opp->level >= *level) {
+			opp = temp_opp;
+			*level = opp->level;
+
+			/* Increment the reference count of OPP */
+			dev_pm_opp_get(opp);
+			break;
+		}
+	}
+
+	mutex_unlock(&opp_table->lock);
+	dev_pm_opp_put_opp_table(opp_table);
+
+	return opp;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_ceil);
+
+/**
+ * dev_pm_opp_find_bw_ceil() - Search for a rounded ceil bandwidth
+ * @dev:	device for which we do this operation
+ * @freq:	start bandwidth
+ * @index:	which bandwidth to compare, in case of OPPs with several values
+ *
+ * Search for the matching floor *available* OPP from a starting bandwidth
+ * for a device.
+ *
+ * Return: matching *opp and refreshes *bw accordingly, else returns
+ * ERR_PTR in case of error and should be handled using IS_ERR. Error return
+ * values can be:
+ * EINVAL:	for bad pointer
+ * ERANGE:	no match found for search
+ * ENODEV:	if device not found in list of registered devices
+ *
+ * The callers are required to call dev_pm_opp_put() for the returned OPP after
+ * use.
+ */
+struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev,
+					   unsigned int *bw, int index)
+{
+	struct opp_table *opp_table;
+	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+
+	if (!dev || !bw) {
+		dev_err(dev, "%s: Invalid argument bw=%p\n", __func__, bw);
+		return ERR_PTR(-EINVAL);
+	}
+
+	opp_table = _find_opp_table(dev);
+	if (IS_ERR(opp_table))
+		return ERR_CAST(opp_table);
+
+	if (index >= opp_table->path_count)
+		return ERR_PTR(-EINVAL);
+
+	mutex_lock(&opp_table->lock);
+
+	list_for_each_entry(temp_opp, &opp_table->opp_list, node) {
+		if (temp_opp->available && temp_opp->bandwidth) {
+			if (temp_opp->bandwidth[index].peak >= *bw) {
+				opp = temp_opp;
+				*bw = opp->bandwidth[index].peak;
+
+				/* Increment the reference count of OPP */
+				dev_pm_opp_get(opp);
+				break;
+			}
+		}
+	}
+
+	mutex_unlock(&opp_table->lock);
+	dev_pm_opp_put_opp_table(opp_table);
+
+	return opp;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_bw_ceil);
+
+/**
+ * dev_pm_opp_find_bw_floor() - Search for a rounded floor bandwidth
+ * @dev:	device for which we do this operation
+ * @freq:	start bandwidth
+ * @index:	which bandwidth to compare, in case of OPPs with several values
+ *
+ * Search for the matching floor *available* OPP from a starting bandwidth
+ * for a device.
+ *
+ * Return: matching *opp and refreshes *bw accordingly, else returns
+ * ERR_PTR in case of error and should be handled using IS_ERR. Error return
+ * values can be:
+ * EINVAL:	for bad pointer
+ * ERANGE:	no match found for search
+ * ENODEV:	if device not found in list of registered devices
+ *
+ * The callers are required to call dev_pm_opp_put() for the returned OPP after
+ * use.
+ */
+struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev,
+					    unsigned int *bw, int index)
+{
+	struct opp_table *opp_table;
+	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+
+	if (!dev || !bw) {
+		dev_err(dev, "%s: Invalid argument bw=%p\n", __func__, bw);
+		return ERR_PTR(-EINVAL);
+	}
+
+	opp_table = _find_opp_table(dev);
+	if (IS_ERR(opp_table))
+		return ERR_CAST(opp_table);
+
+	if (index >= opp_table->path_count)
+		return ERR_PTR(-EINVAL);
+
+	mutex_lock(&opp_table->lock);
+
+	list_for_each_entry(temp_opp, &opp_table->opp_list, node) {
+		if (temp_opp->available && temp_opp->bandwidth) {
+			/* go to the next node, before choosing prev */
+			if (temp_opp->bandwidth[index].peak > *bw)
+				break;
+			opp = temp_opp;
+		}
+	}
+
+	/* Increment the reference count of OPP */
+	if (!IS_ERR(opp))
+		dev_pm_opp_get(opp);
+	mutex_unlock(&opp_table->lock);
+	dev_pm_opp_put_opp_table(opp_table);
+
+	if (!IS_ERR(opp))
+		*bw = opp->bandwidth[index].peak;
+
+	return opp;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_bw_floor);
+
 static int _set_opp_voltage(struct device *dev, struct regulator *reg,
 			    struct dev_pm_opp_supply *supply)
 {
@@ -1486,9 +1606,8 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_put);
  */
 void dev_pm_opp_remove(struct device *dev, unsigned long freq)
 {
-	struct dev_pm_opp *opp;
+	struct dev_pm_opp *opp = NULL, *iter;
 	struct opp_table *opp_table;
-	bool found = false;
 
 	opp_table = _find_opp_table(dev);
 	if (IS_ERR(opp_table))
@@ -1496,16 +1615,16 @@ void dev_pm_opp_remove(struct device *dev, unsigned long freq)
 
 	mutex_lock(&opp_table->lock);
 
-	list_for_each_entry(opp, &opp_table->opp_list, node) {
-		if (opp->rate == freq) {
-			found = true;
+	list_for_each_entry(iter, &opp_table->opp_list, node) {
+		if (iter->rate == freq) {
+			opp = iter;
 			break;
 		}
 	}
 
 	mutex_unlock(&opp_table->lock);
 
-	if (found) {
+	if (opp) {
 		dev_pm_opp_put(opp);
 
 		/* Drop the reference taken by dev_pm_opp_add() */
@@ -2019,10 +2138,9 @@ struct opp_table *dev_pm_opp_set_regulators(struct device *dev,
 	for (i = 0; i < count; i++) {
 		reg = regulator_get_optional(dev, names[i]);
 		if (IS_ERR(reg)) {
-			ret = PTR_ERR(reg);
-			if (ret != -EPROBE_DEFER)
-				dev_err(dev, "%s: no regulator (%s) found: %d\n",
-					__func__, names[i], ret);
+			ret = dev_err_probe(dev, PTR_ERR(reg),
+					    "%s: no regulator (%s) found\n",
+					    __func__, names[i]);
 			goto free_regulators;
 		}
 
@@ -2168,11 +2286,8 @@ struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name)
 	/* Find clk for the device */
 	opp_table->clk = clk_get(dev, name);
 	if (IS_ERR(opp_table->clk)) {
-		ret = PTR_ERR(opp_table->clk);
-		if (ret != -EPROBE_DEFER) {
-			dev_err(dev, "%s: Couldn't find clock: %d\n", __func__,
-				ret);
-		}
+		ret = dev_err_probe(dev, PTR_ERR(opp_table->clk),
+				    "%s: Couldn't find clock\n", __func__);
 		goto err;
 	}
 
diff --git a/drivers/opp/debugfs.c b/drivers/opp/debugfs.c
index 3fcc1f97f2d1..1b6e5c55c3ed 100644
--- a/drivers/opp/debugfs.c
+++ b/drivers/opp/debugfs.c
@@ -195,14 +195,18 @@ void opp_debug_register(struct opp_device *opp_dev, struct opp_table *opp_table)
 static void opp_migrate_dentry(struct opp_device *opp_dev,
 			       struct opp_table *opp_table)
 {
-	struct opp_device *new_dev;
+	struct opp_device *new_dev = NULL, *iter;
 	const struct device *dev;
 	struct dentry *dentry;
 
 	/* Look for next opp-dev */
-	list_for_each_entry(new_dev, &opp_table->dev_list, node)
-		if (new_dev != opp_dev)
+	list_for_each_entry(iter, &opp_table->dev_list, node)
+		if (iter != opp_dev) {
+			new_dev = iter;
 			break;
+		}
+
+	BUG_ON(!new_dev);
 
 	/* new_dev is guaranteed to be valid here */
 	dev = new_dev->dev;
diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index 485ea980bde7..30394929d700 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -437,11 +437,11 @@ static int _bandwidth_supported(struct device *dev, struct opp_table *opp_table)
 
 	/* Checking only first OPP is sufficient */
 	np = of_get_next_available_child(opp_np, NULL);
+	of_node_put(opp_np);
 	if (!np) {
 		dev_err(dev, "OPP table empty\n");
 		return -EINVAL;
 	}
-	of_node_put(opp_np);
 
 	prop = of_find_property(np, "opp-peak-kBps", NULL);
 	of_node_put(np);
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 0d85a63a1f78..6708b4ec244d 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -117,18 +117,25 @@ unsigned long dev_pm_opp_get_suspend_opp_freq(struct device *dev);
 struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
 					      unsigned long freq,
 					      bool available);
-struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev,
-					       unsigned int level);
-struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev,
-					      unsigned int *level);
-
 struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
 					      unsigned long *freq);
 struct dev_pm_opp *dev_pm_opp_find_freq_ceil_by_volt(struct device *dev,
 						     unsigned long u_volt);
 
+struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev,
+					       unsigned int level);
+struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev,
+					      unsigned int *level);
+
 struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
 					     unsigned long *freq);
+
+struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev,
+					   unsigned int *bw, int index);
+
+struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev,
+					   unsigned int *bw, int index);
+
 void dev_pm_opp_put(struct dev_pm_opp *opp);
 
 int dev_pm_opp_add(struct device *dev, unsigned long freq,
@@ -243,12 +250,6 @@ static inline unsigned long dev_pm_opp_get_suspend_opp_freq(struct device *dev)
 	return 0;
 }
 
-static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
-					unsigned long freq, bool available)
-{
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
 static inline struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev,
 					unsigned int level)
 {
@@ -261,6 +262,12 @@ static inline struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev,
 	return ERR_PTR(-EOPNOTSUPP);
 }
 
+static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
+					unsigned long freq, bool available)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
 static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
 					unsigned long *freq)
 {
@@ -279,6 +286,18 @@ static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
 	return ERR_PTR(-EOPNOTSUPP);
 }
 
+static inline struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev,
+					unsigned int *bw, int index)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev,
+					unsigned int *bw, int index)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
 static inline void dev_pm_opp_put(struct dev_pm_opp *opp) {}
 
 static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,