Merging upstream version 6.9.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

45 files changed, 178 insertions, 157 deletions

diff --git a/drivers/mfd/ac100.c b/drivers/mfd/ac100.c
index 6d49d7fb5f..8f47c392cb 100644
--- a/drivers/mfd/ac100.c
+++ b/drivers/mfd/ac100.c
@@ -72,7 +72,7 @@ static const struct regmap_config ac100_regmap_config = {
 	.wr_table	= &ac100_writeable_table,
 	.volatile_table	= &ac100_volatile_table,
 	.max_register	= AC100_RTC_GP(15),
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static struct mfd_cell ac100_cells[] = {
diff --git a/drivers/mfd/as3711.c b/drivers/mfd/as3711.c
index c7e85ff380..9741977031 100644
--- a/drivers/mfd/as3711.c
+++ b/drivers/mfd/as3711.c
@@ -106,7 +106,7 @@ static const struct regmap_config as3711_regmap_config = {
 	.precious_reg = as3711_precious_reg,
 	.max_register = AS3711_MAX_REG,
 	.num_reg_defaults_raw = AS3711_NUM_REGS,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 #ifdef CONFIG_OF
diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c
index a2bf68afc1..bec047bdd0 100644
--- a/drivers/mfd/as3722.c
+++ b/drivers/mfd/as3722.c
@@ -299,7 +299,7 @@ static const struct regmap_config as3722_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = AS3722_MAX_REGISTER,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.rd_table = &as3722_readable_table,
 	.wr_table = &as3722_writable_table,
 	.volatile_table = &as3722_volatile_table,
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index deaa969bab..d8daa593eb 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -352,7 +352,7 @@ static const struct regmap_config axp192_regmap_config = {
 	.wr_table	= &axp192_writeable_table,
 	.volatile_table	= &axp192_volatile_table,
 	.max_register	= AXP20X_CC_CTRL,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static const struct regmap_config axp20x_regmap_config = {
@@ -388,7 +388,7 @@ static const struct regmap_config axp313a_regmap_config = {
 	.wr_table = &axp313a_writeable_table,
 	.volatile_table = &axp313a_volatile_table,
 	.max_register = AXP313A_IRQ_STATE,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static const struct regmap_config axp806_regmap_config = {
diff --git a/drivers/mfd/bcm590xx.c b/drivers/mfd/bcm590xx.c
index 92eede9a5e..8b56786d85 100644
--- a/drivers/mfd/bcm590xx.c
+++ b/drivers/mfd/bcm590xx.c
@@ -27,14 +27,14 @@ static const struct regmap_config bcm590xx_regmap_config_pri = {
 	.reg_bits	= 8,
 	.val_bits	= 8,
 	.max_register	= BCM590XX_MAX_REGISTER_PRI,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static const struct regmap_config bcm590xx_regmap_config_sec = {
 	.reg_bits	= 8,
 	.val_bits	= 8,
 	.max_register	= BCM590XX_MAX_REGISTER_SEC,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static int bcm590xx_i2c_probe(struct i2c_client *i2c_pri)
diff --git a/drivers/mfd/bd9571mwv.c b/drivers/mfd/bd9571mwv.c
index 819d09e4d1..0a955178d4 100644
--- a/drivers/mfd/bd9571mwv.c
+++ b/drivers/mfd/bd9571mwv.c
@@ -67,7 +67,7 @@ static const struct regmap_access_table bd9571mwv_volatile_table = {
 static const struct regmap_config bd9571mwv_regmap_config = {
 	.reg_bits	= 8,
 	.val_bits	= 8,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 	.rd_table	= &bd9571mwv_readable_table,
 	.wr_table	= &bd9571mwv_writable_table,
 	.volatile_table	= &bd9571mwv_volatile_table,
@@ -152,7 +152,7 @@ static const struct regmap_access_table bd9574mwf_volatile_table = {
 static const struct regmap_config bd9574mwf_regmap_config = {
 	.reg_bits	= 8,
 	.val_bits	= 8,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 	.rd_table	= &bd9574mwf_readable_table,
 	.wr_table	= &bd9574mwf_writable_table,
 	.volatile_table	= &bd9574mwf_volatile_table,
diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index 603b1cd527..a52d59cc2b 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -74,6 +74,10 @@ static const struct mfd_cell cros_ec_cec_cells[] = {
 	{ .name = "cros-ec-cec", },
 };
 
+static const struct mfd_cell cros_ec_gpio_cells[] = {
+	{ .name = "cros-ec-gpio", },
+};
+
 static const struct mfd_cell cros_ec_rtc_cells[] = {
 	{ .name = "cros-ec-rtc", },
 };
@@ -91,6 +95,10 @@ static const struct mfd_cell cros_usbpd_notify_cells[] = {
 	{ .name = "cros-usbpd-notify", },
 };
 
+static const struct mfd_cell cros_ec_wdt_cells[] = {
+	{ .name = "cros-ec-wdt", }
+};
+
 static const struct cros_feature_to_cells cros_subdevices[] = {
 	{
 		.id		= EC_FEATURE_CEC,
@@ -98,6 +106,11 @@ static const struct cros_feature_to_cells cros_subdevices[] = {
 		.num_cells	= ARRAY_SIZE(cros_ec_cec_cells),
 	},
 	{
+		.id		= EC_FEATURE_GPIO,
+		.mfd_cells	= cros_ec_gpio_cells,
+		.num_cells	= ARRAY_SIZE(cros_ec_gpio_cells),
+	},
+	{
 		.id		= EC_FEATURE_RTC,
 		.mfd_cells	= cros_ec_rtc_cells,
 		.num_cells	= ARRAY_SIZE(cros_ec_rtc_cells),
@@ -107,6 +120,11 @@ static const struct cros_feature_to_cells cros_subdevices[] = {
 		.mfd_cells	= cros_usbpd_charger_cells,
 		.num_cells	= ARRAY_SIZE(cros_usbpd_charger_cells),
 	},
+	{
+		.id		= EC_FEATURE_HANG_DETECT,
+		.mfd_cells	= cros_ec_wdt_cells,
+		.num_cells	= ARRAY_SIZE(cros_ec_wdt_cells),
+	},
 };
 
 static const struct mfd_cell cros_ec_platform_cells[] = {
diff --git a/drivers/mfd/cs42l43-i2c.c b/drivers/mfd/cs42l43-i2c.c
index 4922211680..c9e4ea7614 100644
--- a/drivers/mfd/cs42l43-i2c.c
+++ b/drivers/mfd/cs42l43-i2c.c
@@ -6,11 +6,15 @@
  *                         Cirrus Logic International Semiconductor Ltd.
  */
 
+#include <linux/array_size.h>
 #include <linux/err.h>
-#include <linux/errno.h>
 #include <linux/i2c.h>
+#include <linux/mfd/cs42l43.h>
 #include <linux/mfd/cs42l43-regs.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
+#include <linux/pm.h>
+#include <linux/regmap.h>
 
 #include "cs42l43.h"
 
@@ -34,7 +38,6 @@ static const struct regmap_config cs42l43_i2c_regmap = {
 static int cs42l43_i2c_probe(struct i2c_client *i2c)
 {
 	struct cs42l43 *cs42l43;
-	int ret;
 
 	cs42l43 = devm_kzalloc(&i2c->dev, sizeof(*cs42l43), GFP_KERNEL);
 	if (!cs42l43)
@@ -46,11 +49,9 @@ static int cs42l43_i2c_probe(struct i2c_client *i2c)
 	cs42l43->attached = true;
 
 	cs42l43->regmap = devm_regmap_init_i2c(i2c, &cs42l43_i2c_regmap);
-	if (IS_ERR(cs42l43->regmap)) {
-		ret = PTR_ERR(cs42l43->regmap);
-		dev_err(cs42l43->dev, "Failed to allocate regmap: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(cs42l43->regmap))
+		return dev_err_probe(cs42l43->dev, PTR_ERR(cs42l43->regmap),
+				     "Failed to allocate regmap\n");
 
 	return cs42l43_dev_probe(cs42l43);
 }
diff --git a/drivers/mfd/cs42l43-sdw.c b/drivers/mfd/cs42l43-sdw.c
index 1d85bbf8cd..65f7b1d782 100644
--- a/drivers/mfd/cs42l43-sdw.c
+++ b/drivers/mfd/cs42l43-sdw.c
@@ -6,11 +6,15 @@
  *                         Cirrus Logic International Semiconductor Ltd.
  */
 
+#include <linux/array_size.h>
 #include <linux/device.h>
 #include <linux/err.h>
-#include <linux/errno.h>
+#include <linux/mfd/cs42l43.h>
 #include <linux/mfd/cs42l43-regs.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
+#include <linux/pm.h>
+#include <linux/regmap.h>
 #include <linux/soundwire/sdw.h>
 #include <linux/soundwire/sdw_registers.h>
 #include <linux/soundwire/sdw_type.h>
@@ -167,7 +171,6 @@ static int cs42l43_sdw_probe(struct sdw_slave *sdw, const struct sdw_device_id *
 {
 	struct cs42l43 *cs42l43;
 	struct device *dev = &sdw->dev;
-	int ret;
 
 	cs42l43 = devm_kzalloc(dev, sizeof(*cs42l43), GFP_KERNEL);
 	if (!cs42l43)
@@ -177,11 +180,9 @@ static int cs42l43_sdw_probe(struct sdw_slave *sdw, const struct sdw_device_id *
 	cs42l43->sdw = sdw;
 
 	cs42l43->regmap = devm_regmap_init_sdw(sdw, &cs42l43_sdw_regmap);
-	if (IS_ERR(cs42l43->regmap)) {
-		ret = PTR_ERR(cs42l43->regmap);
-		dev_err(cs42l43->dev, "Failed to allocate regmap: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(cs42l43->regmap))
+		return dev_err_probe(cs42l43->dev, PTR_ERR(cs42l43->regmap),
+				     "Failed to allocate regmap\n");
 
 	return cs42l43_dev_probe(cs42l43);
 }
diff --git a/drivers/mfd/cs42l43.c b/drivers/mfd/cs42l43.c
index 1cea3f8f46..a0fb2dc6c3 100644
--- a/drivers/mfd/cs42l43.c
+++ b/drivers/mfd/cs42l43.c
@@ -6,51 +6,57 @@
  *                         Cirrus Logic International Semiconductor Ltd.
  */
 
+#include <linux/array_size.h>
 #include <linux/bitops.h>
 #include <linux/build_bug.h>
 #include <linux/delay.h>
+#include <linux/device.h>
 #include <linux/err.h>
-#include <linux/errno.h>
 #include <linux/firmware.h>
+#include <linux/gpio/consumer.h>
 #include <linux/jiffies.h>
 #include <linux/mfd/core.h>
+#include <linux/mfd/cs42l43.h>
 #include <linux/mfd/cs42l43-regs.h>
 #include <linux/module.h>
+#include <linux/pm.h>
 #include <linux/pm_runtime.h>
+#include <linux/regmap.h>
 #include <linux/soundwire/sdw.h>
+#include <linux/types.h>
 
 #include "cs42l43.h"
 
-#define CS42L43_RESET_DELAY			20
+#define CS42L43_RESET_DELAY_MS			20
 
-#define CS42L43_SDW_ATTACH_TIMEOUT		500
-#define CS42L43_SDW_DETACH_TIMEOUT		100
+#define CS42L43_SDW_ATTACH_TIMEOUT_MS		500
+#define CS42L43_SDW_DETACH_TIMEOUT_MS		100
 
 #define CS42L43_MCU_BOOT_STAGE1			1
 #define CS42L43_MCU_BOOT_STAGE2			2
 #define CS42L43_MCU_BOOT_STAGE3			3
 #define CS42L43_MCU_BOOT_STAGE4			4
-#define CS42L43_MCU_POLL			5000
-#define CS42L43_MCU_CMD_TIMEOUT			20000
+#define CS42L43_MCU_POLL_US			5000
+#define CS42L43_MCU_CMD_TIMEOUT_US		20000
 #define CS42L43_MCU_UPDATE_FORMAT		3
 #define CS42L43_MCU_UPDATE_OFFSET		0x100000
-#define CS42L43_MCU_UPDATE_TIMEOUT		500000
+#define CS42L43_MCU_UPDATE_TIMEOUT_US		500000
 #define CS42L43_MCU_UPDATE_RETRIES		5
 
 #define CS42L43_MCU_SUPPORTED_REV		0x2105
 #define CS42L43_MCU_SHADOW_REGS_REQUIRED_REV	0x2200
 #define CS42L43_MCU_SUPPORTED_BIOS_REV		0x0001
 
-#define CS42L43_VDDP_DELAY			50
-#define CS42L43_VDDD_DELAY			1000
+#define CS42L43_VDDP_DELAY_US			50
+#define CS42L43_VDDD_DELAY_US			1000
 
-#define CS42L43_AUTOSUSPEND_TIME		250
+#define CS42L43_AUTOSUSPEND_TIME_MS		250
 
 struct cs42l43_patch_header {
 	__le16 version;
 	__le16 size;
-	u8 reserved;
-	u8 secure;
+	__u8 reserved;
+	__u8 secure;
 	__le16 bss_size;
 	__le32 apply_addr;
 	__le32 checksum;
@@ -532,10 +538,10 @@ static int cs42l43_soft_reset(struct cs42l43 *cs42l43)
 	regcache_cache_only(cs42l43->regmap, true);
 	regmap_multi_reg_write_bypassed(cs42l43->regmap, reset, ARRAY_SIZE(reset));
 
-	msleep(CS42L43_RESET_DELAY);
+	msleep(CS42L43_RESET_DELAY_MS);
 
 	if (cs42l43->sdw) {
-		unsigned long timeout = msecs_to_jiffies(CS42L43_SDW_DETACH_TIMEOUT);
+		unsigned long timeout = msecs_to_jiffies(CS42L43_SDW_DETACH_TIMEOUT_MS);
 		unsigned long time;
 
 		time = wait_for_completion_timeout(&cs42l43->device_detach, timeout);
@@ -555,7 +561,7 @@ static int cs42l43_soft_reset(struct cs42l43 *cs42l43)
 static int cs42l43_wait_for_attach(struct cs42l43 *cs42l43)
 {
 	if (!cs42l43->attached) {
-		unsigned long timeout = msecs_to_jiffies(CS42L43_SDW_ATTACH_TIMEOUT);
+		unsigned long timeout = msecs_to_jiffies(CS42L43_SDW_ATTACH_TIMEOUT_MS);
 		unsigned long time;
 
 		time = wait_for_completion_timeout(&cs42l43->device_attach, timeout);
@@ -597,7 +603,7 @@ static int cs42l43_mcu_stage_2_3(struct cs42l43 *cs42l43, bool shadow)
 
 	ret = regmap_read_poll_timeout(cs42l43->regmap, CS42L43_BOOT_STATUS,
 				       val, (val == CS42L43_MCU_BOOT_STAGE3),
-				       CS42L43_MCU_POLL, CS42L43_MCU_CMD_TIMEOUT);
+				       CS42L43_MCU_POLL_US, CS42L43_MCU_CMD_TIMEOUT_US);
 	if (ret) {
 		dev_err(cs42l43->dev, "Failed to move to stage 3: %d, 0x%x\n", ret, val);
 		return ret;
@@ -646,7 +652,7 @@ static int cs42l43_mcu_disable(struct cs42l43 *cs42l43)
 
 	ret = regmap_read_poll_timeout(cs42l43->regmap, CS42L43_SOFT_INT_SHADOW, val,
 				       (val & CS42L43_CONTROL_APPLIED_INT_MASK),
-				       CS42L43_MCU_POLL, CS42L43_MCU_CMD_TIMEOUT);
+				       CS42L43_MCU_POLL_US, CS42L43_MCU_CMD_TIMEOUT_US);
 	if (ret) {
 		dev_err(cs42l43->dev, "Failed to disable firmware: %d, 0x%x\n", ret, val);
 		return ret;
@@ -690,7 +696,7 @@ static void cs42l43_mcu_load_firmware(const struct firmware *firmware, void *con
 
 	ret = regmap_read_poll_timeout(cs42l43->regmap, CS42L43_SOFT_INT_SHADOW, val,
 				       (val & CS42L43_PATCH_APPLIED_INT_MASK),
-				       CS42L43_MCU_POLL, CS42L43_MCU_UPDATE_TIMEOUT);
+				       CS42L43_MCU_POLL_US, CS42L43_MCU_UPDATE_TIMEOUT_US);
 	if (ret) {
 		dev_err(cs42l43->dev, "Failed to update firmware: %d, 0x%x\n", ret, val);
 		cs42l43->firmware_error = ret;
@@ -951,7 +957,7 @@ static int cs42l43_power_up(struct cs42l43 *cs42l43)
 	}
 
 	/* vdd-p must be on for 50uS before any other supply */
-	usleep_range(CS42L43_VDDP_DELAY, 2 * CS42L43_VDDP_DELAY);
+	usleep_range(CS42L43_VDDP_DELAY_US, 2 * CS42L43_VDDP_DELAY_US);
 
 	gpiod_set_value_cansleep(cs42l43->reset, 1);
 
@@ -967,7 +973,7 @@ static int cs42l43_power_up(struct cs42l43 *cs42l43)
 		goto err_core_supplies;
 	}
 
-	usleep_range(CS42L43_VDDD_DELAY, 2 * CS42L43_VDDD_DELAY);
+	usleep_range(CS42L43_VDDD_DELAY_US, 2 * CS42L43_VDDD_DELAY_US);
 
 	return 0;
 
@@ -1051,7 +1057,7 @@ int cs42l43_dev_probe(struct cs42l43 *cs42l43)
 	if (ret)
 		return ret;
 
-	pm_runtime_set_autosuspend_delay(cs42l43->dev, CS42L43_AUTOSUSPEND_TIME);
+	pm_runtime_set_autosuspend_delay(cs42l43->dev, CS42L43_AUTOSUSPEND_TIME_MS);
 	pm_runtime_use_autosuspend(cs42l43->dev);
 	pm_runtime_set_active(cs42l43->dev);
 	/*
@@ -1059,7 +1065,9 @@ int cs42l43_dev_probe(struct cs42l43 *cs42l43)
 	 * the boot work runs.
 	 */
 	pm_runtime_get_noresume(cs42l43->dev);
-	devm_pm_runtime_enable(cs42l43->dev);
+	ret = devm_pm_runtime_enable(cs42l43->dev);
+	if (ret)
+		return ret;
 
 	queue_work(system_long_wq, &cs42l43->boot_work);
 
diff --git a/drivers/mfd/cs42l43.h b/drivers/mfd/cs42l43.h
index eb4caf3938..8d1b1b0f5a 100644
--- a/drivers/mfd/cs42l43.h
+++ b/drivers/mfd/cs42l43.h
@@ -6,15 +6,17 @@
  *                         Cirrus Logic International Semiconductor Ltd.
  */
 
-#include <linux/mfd/cs42l43.h>
-#include <linux/pm.h>
-#include <linux/regmap.h>
-
 #ifndef CS42L43_CORE_INT_H
 #define CS42L43_CORE_INT_H
 
 #define CS42L43_N_DEFAULTS 176
 
+struct dev_pm_ops;
+struct device;
+struct reg_default;
+
+struct cs42l43;
+
 extern const struct dev_pm_ops cs42l43_pm_ops;
 extern const struct reg_default cs42l43_reg_default[CS42L43_N_DEFAULTS];
 
diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c
index 150448cd2e..dc85801b9f 100644
--- a/drivers/mfd/da9052-core.c
+++ b/drivers/mfd/da9052-core.c
@@ -533,7 +533,7 @@ const struct regmap_config da9052_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 
 	.max_register = DA9052_PAGE1_CON_REG,
 	.readable_reg = da9052_reg_readable,
diff --git a/drivers/mfd/da9055-core.c b/drivers/mfd/da9055-core.c
index 768302e05b..1f727ef60d 100644
--- a/drivers/mfd/da9055-core.c
+++ b/drivers/mfd/da9055-core.c
@@ -245,7 +245,7 @@ const struct regmap_config da9055_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 
 	.max_register = DA9055_MAX_REGISTER_CNT,
 	.readable_reg = da9055_register_readable,
diff --git a/drivers/mfd/da9062-core.c b/drivers/mfd/da9062-core.c
index 73a2210790..dbbc477917 100644
--- a/drivers/mfd/da9062-core.c
+++ b/drivers/mfd/da9062-core.c
@@ -476,7 +476,7 @@ static struct regmap_config da9061_regmap_config = {
 	.ranges = da9061_range_cfg,
 	.num_ranges = ARRAY_SIZE(da9061_range_cfg),
 	.max_register = DA9062AA_CONFIG_ID,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.rd_table = &da9061_aa_readable_table,
 	.wr_table = &da9061_aa_writeable_table,
 	.volatile_table = &da9061_aa_volatile_table,
@@ -582,7 +582,7 @@ static struct regmap_config da9062_regmap_config = {
 	.ranges = da9062_range_cfg,
 	.num_ranges = ARRAY_SIZE(da9062_range_cfg),
 	.max_register = DA9062AA_CONFIG_ID,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.rd_table = &da9062_aa_readable_table,
 	.wr_table = &da9062_aa_writeable_table,
 	.volatile_table = &da9062_aa_volatile_table,
diff --git a/drivers/mfd/da9063-i2c.c b/drivers/mfd/da9063-i2c.c
index d715cf9a9e..c6235cd0db 100644
--- a/drivers/mfd/da9063-i2c.c
+++ b/drivers/mfd/da9063-i2c.c
@@ -342,7 +342,7 @@ static struct regmap_config da9063_regmap_config = {
 	.num_ranges = ARRAY_SIZE(da9063_range_cfg),
 	.max_register = DA9063_REG_CONFIG_ID,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static const struct of_device_id da9063_dt_ids[] = {
diff --git a/drivers/mfd/da9150-core.c b/drivers/mfd/da9150-core.c
index 94d621e206..5c59cc869f 100644
--- a/drivers/mfd/da9150-core.c
+++ b/drivers/mfd/da9150-core.c
@@ -169,7 +169,7 @@ static const struct regmap_config da9150_regmap_config = {
 	.num_ranges = ARRAY_SIZE(da9150_range_cfg),
 	.max_register = DA9150_TBAT_RES_B,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 
 	.volatile_reg = da9150_volatile_reg,
 };
diff --git a/drivers/mfd/kempld-core.c b/drivers/mfd/kempld-core.c
index 67af36a389..5557f023a1 100644
--- a/drivers/mfd/kempld-core.c
+++ b/drivers/mfd/kempld-core.c
@@ -428,50 +428,13 @@ static int kempld_detect_device(struct kempld_device_data *pld)
 #ifdef CONFIG_ACPI
 static int kempld_get_acpi_data(struct platform_device *pdev)
 {
-	struct list_head resource_list;
-	struct resource *resources;
-	struct resource_entry *rentry;
 	struct device *dev = &pdev->dev;
-	struct acpi_device *acpi_dev = ACPI_COMPANION(dev);
 	const struct kempld_platform_data *pdata;
 	int ret;
-	int count;
 
 	pdata = acpi_device_get_match_data(dev);
 	ret = platform_device_add_data(pdev, pdata,
 				       sizeof(struct kempld_platform_data));
-	if (ret)
-		return ret;
-
-	INIT_LIST_HEAD(&resource_list);
-	ret = acpi_dev_get_resources(acpi_dev, &resource_list, NULL, NULL);
-	if (ret < 0)
-		goto out;
-
-	count = ret;
-
-	if (count == 0) {
-		ret = platform_device_add_resources(pdev, pdata->ioresource, 1);
-		goto out;
-	}
-
-	resources = devm_kcalloc(&acpi_dev->dev, count, sizeof(*resources),
-				 GFP_KERNEL);
-	if (!resources) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	count = 0;
-	list_for_each_entry(rentry, &resource_list, node) {
-		memcpy(&resources[count], rentry->res,
-		       sizeof(*resources));
-		count++;
-	}
-	ret = platform_device_add_resources(pdev, resources, count);
-
-out:
-	acpi_dev_free_resource_list(&resource_list);
 
 	return ret;
 }
diff --git a/drivers/mfd/khadas-mcu.c b/drivers/mfd/khadas-mcu.c
index 61396d824f..ba981a7886 100644
--- a/drivers/mfd/khadas-mcu.c
+++ b/drivers/mfd/khadas-mcu.c
@@ -72,7 +72,7 @@ static const struct regmap_config khadas_mcu_regmap_config = {
 	.max_register	= KHADAS_MCU_CMD_FAN_STATUS_CTRL_REG,
 	.volatile_reg	= khadas_mcu_reg_volatile,
 	.writeable_reg	= khadas_mcu_reg_writeable,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static struct mfd_cell khadas_mcu_fan_cells[] = {
diff --git a/drivers/mfd/lochnagar-i2c.c b/drivers/mfd/lochnagar-i2c.c
index 0b76fcccd0..6c930c57f2 100644
--- a/drivers/mfd/lochnagar-i2c.c
+++ b/drivers/mfd/lochnagar-i2c.c
@@ -70,7 +70,7 @@ static const struct regmap_config lochnagar1_i2c_regmap = {
 	.use_single_read = true,
 	.use_single_write = true,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static const struct reg_sequence lochnagar1_patch[] = {
@@ -163,7 +163,7 @@ static const struct regmap_config lochnagar2_i2c_regmap = {
 	.readable_reg = lochnagar2_readable_register,
 	.volatile_reg = lochnagar2_volatile_register,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static const struct reg_sequence lochnagar2_patch[] = {
diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
index 73a0e7f9bd..f149016601 100644
--- a/drivers/mfd/lpc_ich.c
+++ b/drivers/mfd/lpc_ich.c
@@ -38,6 +38,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/align.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/errno.h>
@@ -1321,7 +1322,7 @@ static int lpc_ich_init_spi(struct pci_dev *dev)
 	case INTEL_SPI_BYT:
 		pci_read_config_dword(dev, SPIBASE_BYT, &spi_base);
 		if (spi_base & SPIBASE_BYT_EN) {
-			res->start = spi_base & ~(SPIBASE_BYT_SZ - 1);
+			res->start = ALIGN_DOWN(spi_base, SPIBASE_BYT_SZ);
 			res->end = res->start + SPIBASE_BYT_SZ - 1;
 
 			info->set_writeable = lpc_ich_byt_set_writeable;
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index 1000572761..920797b806 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -7,6 +7,7 @@
  * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
  */
 
+#include <linux/bitfield.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -174,28 +175,27 @@ int mc13xxx_irq_free(struct mc13xxx *mc13xxx, int irq, void *dev)
 }
 EXPORT_SYMBOL(mc13xxx_irq_free);
 
-#define maskval(reg, mask)	(((reg) & (mask)) >> __ffs(mask))
 static void mc13xxx_print_revision(struct mc13xxx *mc13xxx, u32 revision)
 {
 	dev_info(mc13xxx->dev, "%s: rev: %d.%d, "
 			"fin: %d, fab: %d, icid: %d/%d\n",
 			mc13xxx->variant->name,
-			maskval(revision, MC13XXX_REVISION_REVFULL),
-			maskval(revision, MC13XXX_REVISION_REVMETAL),
-			maskval(revision, MC13XXX_REVISION_FIN),
-			maskval(revision, MC13XXX_REVISION_FAB),
-			maskval(revision, MC13XXX_REVISION_ICID),
-			maskval(revision, MC13XXX_REVISION_ICIDCODE));
+			FIELD_GET(MC13XXX_REVISION_REVFULL, revision),
+			FIELD_GET(MC13XXX_REVISION_REVMETAL, revision),
+			FIELD_GET(MC13XXX_REVISION_FIN, revision),
+			FIELD_GET(MC13XXX_REVISION_FAB, revision),
+			FIELD_GET(MC13XXX_REVISION_ICID, revision),
+			FIELD_GET(MC13XXX_REVISION_ICIDCODE, revision));
 }
 
 static void mc34708_print_revision(struct mc13xxx *mc13xxx, u32 revision)
 {
 	dev_info(mc13xxx->dev, "%s: rev %d.%d, fin: %d, fab: %d\n",
 			mc13xxx->variant->name,
-			maskval(revision, MC34708_REVISION_REVFULL),
-			maskval(revision, MC34708_REVISION_REVMETAL),
-			maskval(revision, MC34708_REVISION_FIN),
-			maskval(revision, MC34708_REVISION_FAB));
+			FIELD_GET(MC34708_REVISION_REVFULL, revision),
+			FIELD_GET(MC34708_REVISION_REVMETAL, revision),
+			FIELD_GET(MC34708_REVISION_FIN, revision),
+			FIELD_GET(MC34708_REVISION_FAB, revision));
 }
 
 /* These are only exported for mc13xxx-i2c and mc13xxx-spi */
diff --git a/drivers/mfd/mcp-core.c b/drivers/mfd/mcp-core.c
index 2fa592c37c..16ca23311c 100644
--- a/drivers/mfd/mcp-core.c
+++ b/drivers/mfd/mcp-core.c
@@ -41,7 +41,7 @@ static void mcp_bus_remove(struct device *dev)
 	drv->remove(mcp);
 }
 
-static struct bus_type mcp_bus_type = {
+static const struct bus_type mcp_bus_type = {
 	.name		= "mcp",
 	.match		= mcp_bus_match,
 	.probe		= mcp_bus_probe,
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 2b85509a90..6ad5c93027 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -29,7 +29,7 @@ struct mfd_of_node_entry {
 	struct device_node *np;
 };
 
-static struct device_type mfd_dev_type = {
+static const struct device_type mfd_dev_type = {
 	.name	= "mfd_device",
 };
 
diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
index 4449dde050..4fd4a2da5a 100644
--- a/drivers/mfd/mt6397-core.c
+++ b/drivers/mfd/mt6397-core.c
@@ -142,6 +142,9 @@ static const struct mfd_cell mt6357_devs[] = {
 		.resources = mt6357_rtc_resources,
 		.of_compatible = "mediatek,mt6357-rtc",
 	}, {
+		.name = "mt6357-sound",
+		.of_compatible = "mediatek,mt6357-sound"
+	}, {
 		.name = "mtk-pmic-keys",
 		.num_resources = ARRAY_SIZE(mt6357_keys_resources),
 		.resources = mt6357_keys_resources,
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index ebc62033db..949feb03d4 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -699,7 +699,7 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 	}
 
 	for (i = 0; i < omap->nports; i++) {
-		char clkname[30];
+		char clkname[40];
 
 		/* clock names are indexed from 1*/
 		snprintf(clkname, sizeof(clkname),
diff --git a/drivers/mfd/rave-sp.c b/drivers/mfd/rave-sp.c
index 6ff84b2600..ef326d6d56 100644
--- a/drivers/mfd/rave-sp.c
+++ b/drivers/mfd/rave-sp.c
@@ -358,7 +358,7 @@ int rave_sp_exec(struct rave_sp *sp,
 
 	ackid       = atomic_inc_return(&sp->ackid);
 	reply.ackid = ackid;
-	reply.code  = rave_sp_reply_code((u8)command),
+	reply.code  = rave_sp_reply_code((u8)command);
 
 	mutex_lock(&sp->bus_lock);
 
@@ -471,8 +471,8 @@ static void rave_sp_receive_frame(struct rave_sp *sp,
 		rave_sp_receive_reply(sp, data, length);
 }
 
-static ssize_t rave_sp_receive_buf(struct serdev_device *serdev,
-				   const u8 *buf, size_t size)
+static size_t rave_sp_receive_buf(struct serdev_device *serdev,
+				  const u8 *buf, size_t size)
 {
 	struct device *dev = &serdev->dev;
 	struct rave_sp *sp = dev_get_drvdata(dev);
diff --git a/drivers/mfd/rc5t583.c b/drivers/mfd/rc5t583.c
index 5e81f01136..2c0e8e9630 100644
--- a/drivers/mfd/rc5t583.c
+++ b/drivers/mfd/rc5t583.c
@@ -230,7 +230,7 @@ static const struct regmap_config rc5t583_regmap_config = {
 	.volatile_reg = volatile_reg,
 	.max_register = RC5T583_MAX_REG,
 	.num_reg_defaults_raw = RC5T583_NUM_REGS,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static int rc5t583_i2c_probe(struct i2c_client *i2c)
diff --git a/drivers/mfd/rk8xx-core.c b/drivers/mfd/rk8xx-core.c
index b1ffc3b9e2..e2261b68b8 100644
--- a/drivers/mfd/rk8xx-core.c
+++ b/drivers/mfd/rk8xx-core.c
@@ -43,8 +43,8 @@ static struct resource rk806_pwrkey_resources[] = {
 };
 
 static const struct resource rk817_pwrkey_resources[] = {
-	DEFINE_RES_IRQ(RK817_IRQ_PWRON_RISE),
 	DEFINE_RES_IRQ(RK817_IRQ_PWRON_FALL),
+	DEFINE_RES_IRQ(RK817_IRQ_PWRON_RISE),
 };
 
 static const struct resource rk817_charger_resources[] = {
diff --git a/drivers/mfd/rk8xx-spi.c b/drivers/mfd/rk8xx-spi.c
index fd137f38c2..3405fb82ff 100644
--- a/drivers/mfd/rk8xx-spi.c
+++ b/drivers/mfd/rk8xx-spi.c
@@ -34,7 +34,7 @@ static const struct regmap_config rk806_regmap_config_spi = {
 	.reg_bits = 16,
 	.val_bits = 8,
 	.max_register = RK806_BUCK_RSERVE_REG5,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.volatile_table = &rk806_volatile_table,
 };
 
diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
index 7336e6d8a0..23ca00d2c6 100644
--- a/drivers/mfd/rn5t618.c
+++ b/drivers/mfd/rn5t618.c
@@ -62,7 +62,7 @@ static const struct regmap_config rn5t618_regmap_config = {
 	.val_bits	= 8,
 	.volatile_reg	= rn5t618_volatile_reg,
 	.max_register	= RN5T618_MAX_REG,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static const struct regmap_irq rc5t619_irqs[] = {
diff --git a/drivers/mfd/rohm-bd71828.c b/drivers/mfd/rohm-bd71828.c
index 594718f7e8..2f3826c7ee 100644
--- a/drivers/mfd/rohm-bd71828.c
+++ b/drivers/mfd/rohm-bd71828.c
@@ -197,7 +197,7 @@ static const struct regmap_config bd71815_regmap = {
 	.val_bits = 8,
 	.volatile_table = &bd71815_volatile_regs,
 	.max_register = BD71815_MAX_REGISTER - 1,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static const struct regmap_config bd71828_regmap = {
@@ -205,7 +205,7 @@ static const struct regmap_config bd71828_regmap = {
 	.val_bits = 8,
 	.volatile_table = &bd71828_volatile_regs,
 	.max_register = BD71828_MAX_REGISTER,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 /*
diff --git a/drivers/mfd/rohm-bd718x7.c b/drivers/mfd/rohm-bd718x7.c
index 4798bdf27a..7755a4c073 100644
--- a/drivers/mfd/rohm-bd718x7.c
+++ b/drivers/mfd/rohm-bd718x7.c
@@ -87,7 +87,7 @@ static const struct regmap_config bd718xx_regmap_config = {
 	.val_bits = 8,
 	.volatile_table = &volatile_regs,
 	.max_register = BD718XX_MAX_REGISTER - 1,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static int bd718xx_init_press_duration(struct regmap *regmap,
diff --git a/drivers/mfd/rohm-bd9576.c b/drivers/mfd/rohm-bd9576.c
index bceac70167..3a9f619617 100644
--- a/drivers/mfd/rohm-bd9576.c
+++ b/drivers/mfd/rohm-bd9576.c
@@ -62,7 +62,7 @@ static struct regmap_config bd957x_regmap = {
 	.val_bits = 8,
 	.volatile_table = &volatile_regs,
 	.max_register = BD957X_MAX_REGISTER,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 static struct regmap_irq bd9576_irqs[] = {
diff --git a/drivers/mfd/rsmu_i2c.c b/drivers/mfd/rsmu_i2c.c
index 06d78a1cf1..5711e512b6 100644
--- a/drivers/mfd/rsmu_i2c.c
+++ b/drivers/mfd/rsmu_i2c.c
@@ -188,7 +188,7 @@ static const struct regmap_config rsmu_sabre_regmap_config = {
 	.ranges = rsmu_sabre_range_cfg,
 	.num_ranges = ARRAY_SIZE(rsmu_sabre_range_cfg),
 	.volatile_reg = rsmu_sabre_volatile_reg,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.can_multi_write = true,
 };
 
diff --git a/drivers/mfd/si476x-prop.c b/drivers/mfd/si476x-prop.c
index f0608d138f..3d5c118888 100644
--- a/drivers/mfd/si476x-prop.c
+++ b/drivers/mfd/si476x-prop.c
@@ -222,7 +222,7 @@ static const struct regmap_config si476x_regmap_config = {
 	.reg_read = si476x_core_regmap_read,
 	.reg_write = si476x_core_regmap_write,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 struct regmap *devm_regmap_init_si476x(struct si476x_core *core)
diff --git a/drivers/mfd/stmfx.c b/drivers/mfd/stmfx.c
index c02cbd9c2f..f391c2ccaa 100644
--- a/drivers/mfd/stmfx.c
+++ b/drivers/mfd/stmfx.c
@@ -53,7 +53,7 @@ static const struct regmap_config stmfx_regmap_config = {
 	.max_register	= STMFX_REG_MAX,
 	.volatile_reg	= stmfx_reg_volatile,
 	.writeable_reg	= stmfx_reg_writeable,
-	.cache_type	= REGCACHE_RBTREE,
+	.cache_type	= REGCACHE_MAPLE,
 };
 
 static const struct resource stmfx_pinctrl_resources[] = {
diff --git a/drivers/mfd/stpmic1.c b/drivers/mfd/stpmic1.c
index c5128fe96c..d8a603d95a 100644
--- a/drivers/mfd/stpmic1.c
+++ b/drivers/mfd/stpmic1.c
@@ -63,7 +63,7 @@ static const struct regmap_access_table stpmic1_volatile_table = {
 static const struct regmap_config stpmic1_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.max_register = PMIC_MAX_REGISTER_ADDRESS,
 	.rd_table = &stpmic1_readable_table,
 	.wr_table = &stpmic1_writeable_table,
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 6e384a79e3..c130ffef18 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -124,6 +124,11 @@
 #define TWL6030_BASEADD_RSV		0x0000
 #define TWL6030_BASEADD_ZERO		0x0000
 
+/* Some fields in TWL6030_PHOENIX_DEV_ON */
+#define TWL6030_APP_DEVOFF		BIT(0)
+#define TWL6030_CON_DEVOFF		BIT(1)
+#define TWL6030_MOD_DEVOFF		BIT(2)
+
 /* Few power values */
 #define R_CFG_BOOT			0x05
 
@@ -687,6 +692,20 @@ static void twl_remove(struct i2c_client *client)
 	twl_priv->ready = false;
 }
 
+static void twl6030_power_off(void)
+{
+	int err;
+	u8 val;
+
+	err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val, TWL6030_PHOENIX_DEV_ON);
+	if (err)
+		return;
+
+	val |= TWL6030_APP_DEVOFF | TWL6030_CON_DEVOFF | TWL6030_MOD_DEVOFF;
+	twl_i2c_write_u8(TWL_MODULE_PM_MASTER, val, TWL6030_PHOENIX_DEV_ON);
+}
+
+
 static struct of_dev_auxdata twl_auxdata_lookup[] = {
 	OF_DEV_AUXDATA("ti,twl4030-gpio", 0, "twl4030-gpio", NULL),
 	{ /* sentinel */ },
@@ -852,6 +871,15 @@ twl_probe(struct i2c_client *client)
 			goto free;
 	}
 
+	if (twl_class_is_6030()) {
+		if (of_device_is_system_power_controller(node)) {
+			if (!pm_power_off)
+				pm_power_off = twl6030_power_off;
+			else
+				dev_warn(&client->dev, "Poweroff callback already assigned\n");
+		}
+	}
+
 	status = of_platform_populate(node, NULL, twl_auxdata_lookup,
 				      &client->dev);
 
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index 1595e9c761..0bca948ab6 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -686,6 +686,9 @@ static bool twl4030_power_use_poweroff(const struct twl4030_power_data *pdata,
 	if (of_property_read_bool(node, "ti,use_poweroff"))
 		return true;
 
+	if (of_device_is_system_power_controller(node->parent))
+		return true;
+
 	return false;
 }
 
diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index f77ecc635b..6a8602c1c4 100644
--- a/drivers/mfd/wm5102-tables.c
+++ b/drivers/mfd/wm5102-tables.c
@@ -1922,7 +1922,7 @@ const struct regmap_config wm5102_spi_regmap = {
 	.readable_reg = wm5102_readable_register,
 	.volatile_reg = wm5102_volatile_register,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.reg_defaults = wm5102_reg_default,
 	.num_reg_defaults = ARRAY_SIZE(wm5102_reg_default),
 };
diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index eba324875a..6ff33a54a0 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -3202,7 +3202,7 @@ const struct regmap_config wm5110_spi_regmap = {
 	.readable_reg = wm5110_readable_register,
 	.volatile_reg = wm5110_volatile_register,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 	.reg_defaults = wm5110_reg_default,
 	.num_reg_defaults = ARRAY_SIZE(wm5110_reg_default),
 };
diff --git a/drivers/mfd/wm831x-auxadc.c b/drivers/mfd/wm831x-auxadc.c
index 65b98f3fbd..18618a8f92 100644
--- a/drivers/mfd/wm831x-auxadc.c
+++ b/drivers/mfd/wm831x-auxadc.c
@@ -152,7 +152,7 @@ static irqreturn_t wm831x_auxadc_irq(int irq, void *irq_data)
 static int wm831x_auxadc_read_polled(struct wm831x *wm831x,
 				     enum wm831x_auxadc input)
 {
-	int ret, src, timeout;
+	int ret, src;
 
 	mutex_lock(&wm831x->auxadc_lock);
 
@@ -179,32 +179,25 @@ static int wm831x_auxadc_read_polled(struct wm831x *wm831x,
 		goto disable;
 	}
 
-	/* If we're not using interrupts then poll the
-	 * interrupt status register */
-	timeout = 5;
-	while (timeout) {
-		msleep(1);
+	/* If we're not using interrupts then read the interrupt status register */
+	msleep(20);
 
-		ret = wm831x_reg_read(wm831x,
-				      WM831X_INTERRUPT_STATUS_1);
-		if (ret < 0) {
-			dev_err(wm831x->dev,
-				"ISR 1 read failed: %d\n", ret);
-			goto disable;
-		}
+	ret = wm831x_reg_read(wm831x, WM831X_INTERRUPT_STATUS_1);
+	if (ret < 0) {
+		dev_err(wm831x->dev,
+			"ISR 1 read failed: %d\n", ret);
+		goto disable;
+	}
 
-		/* Did it complete? */
-		if (ret & WM831X_AUXADC_DATA_EINT) {
-			wm831x_reg_write(wm831x,
-					 WM831X_INTERRUPT_STATUS_1,
-					 WM831X_AUXADC_DATA_EINT);
-			break;
-		} else {
-			dev_err(wm831x->dev,
-				"AUXADC conversion timeout\n");
-			ret = -EBUSY;
-			goto disable;
-		}
+	/* Did it complete? */
+	if (ret & WM831X_AUXADC_DATA_EINT) {
+		wm831x_reg_write(wm831x, WM831X_INTERRUPT_STATUS_1,
+				WM831X_AUXADC_DATA_EINT);
+	} else {
+		dev_err(wm831x->dev,
+			"AUXADC conversion timeout\n");
+		ret = -EBUSY;
+		goto disable;
 	}
 
 	ret = wm831x_reg_read(wm831x, WM831X_AUXADC_DATA);
diff --git a/drivers/mfd/wm8350-regmap.c b/drivers/mfd/wm8350-regmap.c
index 5663b8b0b3..3d0ebb004d 100644
--- a/drivers/mfd/wm8350-regmap.c
+++ b/drivers/mfd/wm8350-regmap.c
@@ -325,7 +325,7 @@ const struct regmap_config wm8350_regmap = {
 	.reg_bits = 8,
 	.val_bits = 16,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 
 	.max_register = WM8350_MAX_REGISTER,
 	.readable_reg = wm8350_readable,
diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c
index 75483c9be0..ddfb234849 100644
--- a/drivers/mfd/wm8400-core.c
+++ b/drivers/mfd/wm8400-core.c
@@ -100,7 +100,7 @@ static const struct regmap_config wm8400_regmap_config = {
 
 	.volatile_reg = wm8400_volatile,
 
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 };
 
 /**
diff --git a/drivers/mfd/wm97xx-core.c b/drivers/mfd/wm97xx-core.c
index 663acbb185..1566a9b04b 100644
--- a/drivers/mfd/wm97xx-core.c
+++ b/drivers/mfd/wm97xx-core.c
@@ -95,7 +95,7 @@ static const struct regmap_config wm9705_regmap_config = {
 	.reg_stride = 2,
 	.val_bits = 16,
 	.max_register = 0x7e,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 
 	.reg_defaults = wm9705_reg_defaults,
 	.num_reg_defaults = ARRAY_SIZE(wm9705_reg_defaults),
@@ -163,7 +163,7 @@ static const struct regmap_config wm9712_regmap_config = {
 	.reg_stride = 2,
 	.val_bits = 16,
 	.max_register = 0x7e,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 
 	.reg_defaults = wm9712_reg_defaults,
 	.num_reg_defaults = ARRAY_SIZE(wm9712_reg_defaults),
@@ -234,7 +234,7 @@ static const struct regmap_config wm9713_regmap_config = {
 	.reg_stride = 2,
 	.val_bits = 16,
 	.max_register = 0x7e,
-	.cache_type = REGCACHE_RBTREE,
+	.cache_type = REGCACHE_MAPLE,
 
 	.reg_defaults = wm9713_reg_defaults,
 	.num_reg_defaults = ARRAY_SIZE(wm9713_reg_defaults),