Merge tag 'asoc-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into next/boards

The asoc branch that was already merged into v3.4 contains some
board-level changes that conflict with patches we already have
here, so pull in that branch to resolve the conflicts.

Conflicts:
	arch/arm/mach-imx/mach-imx27_visstrim_m10.c
	arch/arm/mach-omap2/board-omap4panda.c

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[olof: Amended fix for mismerge as reported by Kevin Hilman]
Signed-off-by: Olof Johansson <olof@lixom.net>

4 files changed, 195 insertions, 0 deletions

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 1a02b7537c8b..d141b80479b5 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -75,6 +75,9 @@ struct regmap {
 	const void *reg_defaults_raw;
 	void *cache;
 	bool cache_dirty;
+
+	struct reg_default *patch;
+	int patch_regs;
 };
 
 struct regcache_ops {
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index d1daa5e9fadf..5cd2a37e7688 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -268,6 +268,17 @@ int regcache_sync(struct regmap *map)
 		map->cache_ops->name);
 	name = map->cache_ops->name;
 	trace_regcache_sync(map->dev, name, "start");
+
+	/* Apply any patch first */
+	for (i = 0; i < map->patch_regs; i++) {
+		ret = _regmap_write(map, map->patch[i].reg, map->patch[i].def);
+		if (ret != 0) {
+			dev_err(map->dev, "Failed to write %x = %x: %d\n",
+				map->patch[i].reg, map->patch[i].def, ret);
+			goto out;
+		}
+	}
+
 	if (!map->cache_dirty)
 		goto out;
 	if (map->cache_ops->sync) {
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 65558034318f..7ac234f0b1c5 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -672,6 +672,79 @@ int regmap_update_bits_check(struct regmap *map, unsigned int reg,
 }
 EXPORT_SYMBOL_GPL(regmap_update_bits_check);
 
+/**
+ * regmap_register_patch: Register and apply register updates to be applied
+ *                        on device initialistion
+ *
+ * @map: Register map to apply updates to.
+ * @regs: Values to update.
+ * @num_regs: Number of entries in regs.
+ *
+ * Register a set of register updates to be applied to the device
+ * whenever the device registers are synchronised with the cache and
+ * apply them immediately.  Typically this is used to apply
+ * corrections to be applied to the device defaults on startup, such
+ * as the updates some vendors provide to undocumented registers.
+ */
+int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
+			  int num_regs)
+{
+	int i, ret;
+	bool bypass;
+
+	/* If needed the implementation can be extended to support this */
+	if (map->patch)
+		return -EBUSY;
+
+	mutex_lock(&map->lock);
+
+	bypass = map->cache_bypass;
+
+	map->cache_bypass = true;
+
+	/* Write out first; it's useful to apply even if we fail later. */
+	for (i = 0; i < num_regs; i++) {
+		ret = _regmap_write(map, regs[i].reg, regs[i].def);
+		if (ret != 0) {
+			dev_err(map->dev, "Failed to write %x = %x: %d\n",
+				regs[i].reg, regs[i].def, ret);
+			goto out;
+		}
+	}
+
+	map->patch = kcalloc(sizeof(struct reg_default), num_regs, GFP_KERNEL);
+	if (map->patch != NULL) {
+		memcpy(map->patch, regs,
+		       num_regs * sizeof(struct reg_default));
+		map->patch_regs = num_regs;
+	} else {
+		ret = -ENOMEM;
+	}
+
+out:
+	map->cache_bypass = bypass;
+
+	mutex_unlock(&map->lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(regmap_register_patch);
+
+/*
+ * regmap_get_val_bytes(): Report the size of a register value
+ *
+ * Report the size of a register value, mainly intended to for use by
+ * generic infrastructure built on top of regmap.
+ */
+int regmap_get_val_bytes(struct regmap *map)
+{
+	if (map->format.format_write)
+		return -EINVAL;
+
+	return map->format.val_bytes;
+}
+EXPORT_SYMBOL_GPL(regmap_get_val_bytes);
+
 static int __init regmap_initcall(void)
 {
 	regmap_debugfs_initcall();
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index e9a83f84adaf..aa5186608aec 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1320,6 +1320,40 @@ struct regulator *regulator_get(struct device *dev, const char *id)
 }
 EXPORT_SYMBOL_GPL(regulator_get);
 
+static void devm_regulator_release(struct device *dev, void *res)
+{
+	regulator_put(*(struct regulator **)res);
+}
+
+/**
+ * devm_regulator_get - Resource managed regulator_get()
+ * @dev: device for regulator "consumer"
+ * @id: Supply name or regulator ID.
+ *
+ * Managed regulator_get(). Regulators returned from this function are
+ * automatically regulator_put() on driver detach. See regulator_get() for more
+ * information.
+ */
+struct regulator *devm_regulator_get(struct device *dev, const char *id)
+{
+	struct regulator **ptr, *regulator;
+
+	ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	regulator = regulator_get(dev, id);
+	if (!IS_ERR(regulator)) {
+		*ptr = regulator;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return regulator;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_get);
+
 /**
  * regulator_get_exclusive - obtain exclusive access to a regulator.
  * @dev: device for regulator "consumer"
@@ -1387,6 +1421,34 @@ void regulator_put(struct regulator *regulator)
 }
 EXPORT_SYMBOL_GPL(regulator_put);
 
+static int devm_regulator_match(struct device *dev, void *res, void *data)
+{
+	struct regulator **r = res;
+	if (!r || !*r) {
+		WARN_ON(!r || !*r);
+		return 0;
+	}
+	return *r == data;
+}
+
+/**
+ * devm_regulator_put - Resource managed regulator_put()
+ * @regulator: regulator to free
+ *
+ * Deallocate a regulator allocated with devm_regulator_get(). Normally
+ * this function will not need to be called and the resource management
+ * code will ensure that the resource is freed.
+ */
+void devm_regulator_put(struct regulator *regulator)
+{
+	int rc;
+
+	rc = devres_destroy(regulator->dev, devm_regulator_release,
+			    devm_regulator_match, regulator);
+	WARN_ON(rc);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_put);
+
 static int _regulator_can_change_status(struct regulator_dev *rdev)
 {
 	if (!rdev->constraints)
@@ -2401,6 +2463,52 @@ err:
 }
 EXPORT_SYMBOL_GPL(regulator_bulk_get);
 
+/**
+ * devm_regulator_bulk_get - managed get multiple regulator consumers
+ *
+ * @dev:           Device to supply
+ * @num_consumers: Number of consumers to register
+ * @consumers:     Configuration of consumers; clients are stored here.
+ *
+ * @return 0 on success, an errno on failure.
+ *
+ * This helper function allows drivers to get several regulator
+ * consumers in one operation with management, the regulators will
+ * automatically be freed when the device is unbound.  If any of the
+ * regulators cannot be acquired then any regulators that were
+ * allocated will be freed before returning to the caller.
+ */
+int devm_regulator_bulk_get(struct device *dev, int num_consumers,
+			    struct regulator_bulk_data *consumers)
+{
+	int i;
+	int ret;
+
+	for (i = 0; i < num_consumers; i++)
+		consumers[i].consumer = NULL;
+
+	for (i = 0; i < num_consumers; i++) {
+		consumers[i].consumer = devm_regulator_get(dev,
+							   consumers[i].supply);
+		if (IS_ERR(consumers[i].consumer)) {
+			ret = PTR_ERR(consumers[i].consumer);
+			dev_err(dev, "Failed to get supply '%s': %d\n",
+				consumers[i].supply, ret);
+			consumers[i].consumer = NULL;
+			goto err;
+		}
+	}
+
+	return 0;
+
+err:
+	for (i = 0; i < num_consumers && consumers[i].consumer; i++)
+		devm_regulator_put(consumers[i].consumer);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_bulk_get);
+
 static void regulator_bulk_enable_async(void *data, async_cookie_t cookie)
 {
 	struct regulator_bulk_data *bulk = data;