Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6: (9356 commits)
  [media] rc: update for bitop name changes
  fs: simplify iget & friends
  fs: pull inode->i_lock up out of writeback_single_inode
  fs: rename inode_lock to inode_hash_lock
  fs: move i_wb_list out from under inode_lock
  fs: move i_sb_list out from under inode_lock
  fs: remove inode_lock from iput_final and prune_icache
  fs: Lock the inode LRU list separately
  fs: factor inode disposal
  fs: protect inode->i_state with inode->i_lock
  lib, arch: add filter argument to show_mem and fix private implementations
  SLUB: Write to per cpu data when allocating it
  slub: Fix debugobjects with lockless fastpath
  autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd()
  autofs4 - remove autofs4_lock
  autofs4 - fix d_manage() return on rcu-walk
  autofs4 - fix autofs4_expire_indirect() traversal
  autofs4 - fix dentry leak in autofs4_expire_direct()
  autofs4 - reinstate last used update on access
  vfs - check non-mountpoint dentry might block in __follow_mount_rcu()
  ...

NOTE!

This merge commit was created to fix compilation error. The block
tree was merged upstream and removed the 'elv_queue_empty()'
function which the new 'mtdswap' driver is using. So a simple
merge of the mtd tree with upstream does not compile. And the
mtd tree has already be published, so re-basing it is not an option.

To fix this unfortunate situation, I had to merge upstream into the
mtd-2.6.git tree without committing, put the fixup patch on top of
this, and then commit this. The result is that we do not have commits
which do not compile.

In other words, this merge commit "merges" 3 things: the MTD tree, the
upstream tree, and the fixup patch.

1 files changed, 99 insertions, 6 deletions

diff --git a/sound/soc/codecs/wm8995.c b/sound/soc/codecs/wm8995.c
index 6045cbde492b..67eaaecbb42e 100644
--- a/sound/soc/codecs/wm8995.c
+++ b/sound/soc/codecs/wm8995.c
@@ -19,6 +19,7 @@
 #include <linux/pm.h>
 #include <linux/i2c.h>
 #include <linux/spi/spi.h>
+#include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -30,6 +31,18 @@
 
 #include "wm8995.h"
 
+#define WM8995_NUM_SUPPLIES 8
+static const char *wm8995_supply_names[WM8995_NUM_SUPPLIES] = {
+	"DCVDD",
+	"DBVDD1",
+	"DBVDD2",
+	"DBVDD3",
+	"AVDD1",
+	"AVDD2",
+	"CPVDD",
+	"MICVDD"
+};
+
 static const u16 wm8995_reg_defs[WM8995_MAX_REGISTER + 1] = {
 	[0]     = 0x8995, [5]     = 0x0100, [16]    = 0x000b, [17]    = 0x000b,
 	[24]    = 0x02c0, [25]    = 0x02c0, [26]    = 0x02c0, [27]    = 0x02c0,
@@ -126,8 +139,37 @@ struct wm8995_priv {
 	int mclk[2];
 	int aifclk[2];
 	struct fll_config fll[2], fll_suspend[2];
+	struct regulator_bulk_data supplies[WM8995_NUM_SUPPLIES];
+	struct notifier_block disable_nb[WM8995_NUM_SUPPLIES];
+	struct snd_soc_codec *codec;
 };
 
+/*
+ * We can't use the same notifier block for more than one supply and
+ * there's no way I can see to get from a callback to the caller
+ * except container_of().
+ */
+#define WM8995_REGULATOR_EVENT(n) \
+static int wm8995_regulator_event_##n(struct notifier_block *nb, \
+				      unsigned long event, void *data)    \
+{ \
+	struct wm8995_priv *wm8995 = container_of(nb, struct wm8995_priv, \
+				     disable_nb[n]); \
+	if (event & REGULATOR_EVENT_DISABLE) { \
+		wm8995->codec->cache_sync = 1; \
+	} \
+	return 0; \
+}
+
+WM8995_REGULATOR_EVENT(0)
+WM8995_REGULATOR_EVENT(1)
+WM8995_REGULATOR_EVENT(2)
+WM8995_REGULATOR_EVENT(3)
+WM8995_REGULATOR_EVENT(4)
+WM8995_REGULATOR_EVENT(5)
+WM8995_REGULATOR_EVENT(6)
+WM8995_REGULATOR_EVENT(7)
+
 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
 static const DECLARE_TLV_DB_SCALE(in1lr_pga_tlv, -1650, 150, 0);
 static const DECLARE_TLV_DB_SCALE(in1l_boost_tlv, 0, 600, 0);
@@ -909,7 +951,7 @@ static const struct snd_soc_dapm_route wm8995_intercon[] = {
 	{ "SPK2R", NULL, "SPK2R Driver" }
 };
 
-static int wm8995_volatile(unsigned int reg)
+static int wm8995_volatile(struct snd_soc_codec *codec, unsigned int reg)
 {
 	/* out of bounds registers are generally considered
 	 * volatile to support register banks that are partially
@@ -1223,7 +1265,7 @@ static int wm8995_set_tristate(struct snd_soc_dai *codec_dai, int tristate)
 	else
 		val = 0;
 
-	return snd_soc_update_bits(codec, reg, mask, reg);
+	return snd_soc_update_bits(codec, reg, mask, val);
 }
 
 /* The size in bits of the FLL divide multiplied by 10
@@ -1483,6 +1525,11 @@ static int wm8995_set_bias_level(struct snd_soc_codec *codec,
 		break;
 	case SND_SOC_BIAS_STANDBY:
 		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+			ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
+						    wm8995->supplies);
+			if (ret)
+				return ret;
+
 			ret = snd_soc_cache_sync(codec);
 			if (ret) {
 				dev_err(codec->dev,
@@ -1492,12 +1539,13 @@ static int wm8995_set_bias_level(struct snd_soc_codec *codec,
 
 			snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 					    WM8995_BG_ENA_MASK, WM8995_BG_ENA);
-
 		}
 		break;
 	case SND_SOC_BIAS_OFF:
 		snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 				    WM8995_BG_ENA_MASK, 0);
+		regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies),
+				       wm8995->supplies);
 		break;
 	}
 
@@ -1536,10 +1584,12 @@ static int wm8995_remove(struct snd_soc_codec *codec)
 static int wm8995_probe(struct snd_soc_codec *codec)
 {
 	struct wm8995_priv *wm8995;
+	int i;
 	int ret;
 
 	codec->dapm.idle_bias_off = 1;
 	wm8995 = snd_soc_codec_get_drvdata(codec);
+	wm8995->codec = codec;
 
 	ret = snd_soc_codec_set_cache_io(codec, 16, 16, wm8995->control_type);
 	if (ret < 0) {
@@ -1547,21 +1597,58 @@ static int wm8995_probe(struct snd_soc_codec *codec)
 		return ret;
 	}
 
+	for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++)
+		wm8995->supplies[i].supply = wm8995_supply_names[i];
+
+	ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8995->supplies),
+				 wm8995->supplies);
+	if (ret) {
+		dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
+		return ret;
+	}
+
+	wm8995->disable_nb[0].notifier_call = wm8995_regulator_event_0;
+	wm8995->disable_nb[1].notifier_call = wm8995_regulator_event_1;
+	wm8995->disable_nb[2].notifier_call = wm8995_regulator_event_2;
+	wm8995->disable_nb[3].notifier_call = wm8995_regulator_event_3;
+	wm8995->disable_nb[4].notifier_call = wm8995_regulator_event_4;
+	wm8995->disable_nb[5].notifier_call = wm8995_regulator_event_5;
+	wm8995->disable_nb[6].notifier_call = wm8995_regulator_event_6;
+	wm8995->disable_nb[7].notifier_call = wm8995_regulator_event_7;
+
+	/* This should really be moved into the regulator core */
+	for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++) {
+		ret = regulator_register_notifier(wm8995->supplies[i].consumer,
+						  &wm8995->disable_nb[i]);
+		if (ret) {
+			dev_err(codec->dev,
+				"Failed to register regulator notifier: %d\n",
+				ret);
+		}
+	}
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
+				    wm8995->supplies);
+	if (ret) {
+		dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
+		goto err_reg_get;
+	}
+
 	ret = snd_soc_read(codec, WM8995_SOFTWARE_RESET);
 	if (ret < 0) {
 		dev_err(codec->dev, "Failed to read device ID: %d\n", ret);
-		return ret;
+		goto err_reg_enable;
 	}
 
 	if (ret != 0x8995) {
 		dev_err(codec->dev, "Invalid device ID: %#x\n", ret);
-		return -EINVAL;
+		goto err_reg_enable;
 	}
 
 	ret = snd_soc_write(codec, WM8995_SOFTWARE_RESET, 0);
 	if (ret < 0) {
 		dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
-		return ret;
+		goto err_reg_enable;
 	}
 
 	wm8995_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
@@ -1596,6 +1683,12 @@ static int wm8995_probe(struct snd_soc_codec *codec)
 				ARRAY_SIZE(wm8995_intercon));
 
 	return 0;
+
+err_reg_enable:
+	regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
+err_reg_get:
+	regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
+	return ret;
 }
 
 #define WM8995_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\