Merge tag 'staging-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO updates from Greg KH:
 "Here is the "big" staging and IIO driver update for 4.15-rc1.

  Lots and lots of little changes, almost all minor code cleanups as the
  Outreachy application process happened during this development cycle.
  Also happened was a lot of IIO driver activity, and the typec USB code
  moving out of staging to drivers/usb (same commits are in the USB tree
  on a persistent branch to not cause merge issues.)

  Overall, it's a wash, I think we added a few hundred more lines than
  removed, but really only a few thousand were modified at all.

  All of these have been in linux-next for a while. There might be a
  merge issue with Al's vfs tree in the pi433 driver (take his changes,
  they are always better), and the media tree with some of the odd
  atomisp cleanups (take the media tree's version)"

* tag 'staging-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (507 commits)
  staging: lustre: add SPDX identifiers to all lustre files
  staging: greybus: Remove redundant license text
  staging: greybus: add SPDX identifiers to all greybus driver files
  staging: ccree: simplify ioread/iowrite
  staging: ccree: simplify registers access
  staging: ccree: simplify error handling logic
  staging: ccree: remove dead code
  staging: ccree: handle limiting of DMA masks
  staging: ccree: copy IV to DMAable memory
  staging: fbtft: remove redundant initialization of buf
  staging: sm750fb: Fix parameter mistake in poke32
  staging: wilc1000: Fix bssid buffer offset in Txq
  staging: fbtft: fb_ssd1331: fix mirrored display
  staging: android: Fix checkpatch.pl error
  staging: greybus: loopback: convert loopback to use generic async operations
  staging: greybus: operation: add private data with get/set accessors
  staging: greybus: loopback: Fix iteration count on async path
  staging: greybus: loopback: Hold per-connection mutex across operations
  staging: greybus/loopback: use ktime_get() for time intervals
  staging: fsl-dpaa2/eth: Extra headroom in RX buffers
  ...

37 files changed, 323 insertions, 112 deletions

diff --git a/drivers/iio/light/acpi-als.c b/drivers/iio/light/acpi-als.c
index f0b47c501f4e..c35e2f8df339 100644
--- a/drivers/iio/light/acpi-als.c
+++ b/drivers/iio/light/acpi-als.c
@@ -171,7 +171,6 @@ static int acpi_als_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info acpi_als_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= acpi_als_read_raw,
 };
 
diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c
index 0113fc843a81..e45bb6a277c2 100644
--- a/drivers/iio/light/adjd_s311.c
+++ b/drivers/iio/light/adjd_s311.c
@@ -245,7 +245,6 @@ static const struct iio_info adjd_s311_info = {
 	.read_raw = adjd_s311_read_raw,
 	.write_raw = adjd_s311_write_raw,
 	.update_scan_mode = adjd_s311_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static int adjd_s311_probe(struct i2c_client *client,
diff --git a/drivers/iio/light/al3320a.c b/drivers/iio/light/al3320a.c
index 6aac6513fd41..66623facea9a 100644
--- a/drivers/iio/light/al3320a.c
+++ b/drivers/iio/light/al3320a.c
@@ -168,7 +168,6 @@ static int al3320a_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info al3320a_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= al3320a_read_raw,
 	.write_raw	= al3320a_write_raw,
 	.attrs		= &al3320a_attribute_group,
diff --git a/drivers/iio/light/apds9300.c b/drivers/iio/light/apds9300.c
index 05eacd1ee40f..5c15736fb93e 100644
--- a/drivers/iio/light/apds9300.c
+++ b/drivers/iio/light/apds9300.c
@@ -337,12 +337,10 @@ static int apds9300_write_interrupt_config(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info apds9300_info_no_irq = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= apds9300_read_raw,
 };
 
 static const struct iio_info apds9300_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= apds9300_read_raw,
 	.read_event_value	= apds9300_read_thresh,
 	.write_event_value	= apds9300_write_thresh,
diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c
index 518a47e9377b..a8fa00e31c39 100644
--- a/drivers/iio/light/apds9960.c
+++ b/drivers/iio/light/apds9960.c
@@ -744,7 +744,6 @@ static int apds9960_write_event_config(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info apds9960_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &apds9960_attribute_group,
 	.read_raw = apds9960_read_raw,
 	.write_raw = apds9960_write_raw,
diff --git a/drivers/iio/light/bh1750.c b/drivers/iio/light/bh1750.c
index 6c61187e630f..a814828e69f5 100644
--- a/drivers/iio/light/bh1750.c
+++ b/drivers/iio/light/bh1750.c
@@ -217,7 +217,6 @@ static const struct attribute_group bh1750_attribute_group = {
 };
 
 static const struct iio_info bh1750_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &bh1750_attribute_group,
 	.read_raw = bh1750_read_raw,
 	.write_raw = bh1750_write_raw,
diff --git a/drivers/iio/light/bh1780.c b/drivers/iio/light/bh1780.c
index b54dcba05a82..036f3bbe323c 100644
--- a/drivers/iio/light/bh1780.c
+++ b/drivers/iio/light/bh1780.c
@@ -128,7 +128,6 @@ static int bh1780_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info bh1780_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = bh1780_read_raw,
 	.debugfs_reg_access = bh1780_debugfs_reg_access,
 };
diff --git a/drivers/iio/light/cm32181.c b/drivers/iio/light/cm32181.c
index d6fd0dace74f..aebf7dd071af 100644
--- a/drivers/iio/light/cm32181.c
+++ b/drivers/iio/light/cm32181.c
@@ -292,7 +292,6 @@ static const struct attribute_group cm32181_attribute_group = {
 };
 
 static const struct iio_info cm32181_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= &cm32181_read_raw,
 	.write_raw		= &cm32181_write_raw,
 	.attrs			= &cm32181_attribute_group,
diff --git a/drivers/iio/light/cm3232.c b/drivers/iio/light/cm3232.c
index 263e97235ea0..c639cf276ee6 100644
--- a/drivers/iio/light/cm3232.c
+++ b/drivers/iio/light/cm3232.c
@@ -322,7 +322,6 @@ static const struct attribute_group cm3232_attribute_group = {
 };
 
 static const struct iio_info cm3232_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= &cm3232_read_raw,
 	.write_raw		= &cm3232_write_raw,
 	.attrs			= &cm3232_attribute_group,
diff --git a/drivers/iio/light/cm3323.c b/drivers/iio/light/cm3323.c
index d823c112d54b..83b08b6dc60f 100644
--- a/drivers/iio/light/cm3323.c
+++ b/drivers/iio/light/cm3323.c
@@ -211,7 +211,6 @@ static int cm3323_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info cm3323_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= cm3323_read_raw,
 	.write_raw	= cm3323_write_raw,
 	.attrs		= &cm3323_attribute_group,
diff --git a/drivers/iio/light/cm3605.c b/drivers/iio/light/cm3605.c
index 980624e9ffb5..e454bc6a33c6 100644
--- a/drivers/iio/light/cm3605.c
+++ b/drivers/iio/light/cm3605.c
@@ -126,7 +126,6 @@ static int cm3605_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info cm3605_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = cm3605_read_raw,
 };
 
diff --git a/drivers/iio/light/cm36651.c b/drivers/iio/light/cm36651.c
index 9d66e89c57ef..1dd8ed0121b3 100644
--- a/drivers/iio/light/cm36651.c
+++ b/drivers/iio/light/cm36651.c
@@ -612,7 +612,6 @@ static const struct attribute_group cm36651_attribute_group = {
 };
 
 static const struct iio_info cm36651_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= &cm36651_read_raw,
 	.write_raw		= &cm36651_write_raw,
 	.read_event_value	= &cm36651_read_prox_thresh,
diff --git a/drivers/iio/light/cros_ec_light_prox.c b/drivers/iio/light/cros_ec_light_prox.c
index 721722376fd0..b2a46b390d5c 100644
--- a/drivers/iio/light/cros_ec_light_prox.c
+++ b/drivers/iio/light/cros_ec_light_prox.c
@@ -175,7 +175,6 @@ static int cros_ec_light_prox_write(struct iio_dev *indio_dev,
 static const struct iio_info cros_ec_light_prox_info = {
 	.read_raw = &cros_ec_light_prox_read,
 	.write_raw = &cros_ec_light_prox_write,
-	.driver_module = THIS_MODULE,
 };
 
 static int cros_ec_light_prox_probe(struct platform_device *pdev)
diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
index 6ada9149f142..44b13fbcd093 100644
--- a/drivers/iio/light/gp2ap020a00f.c
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -1384,7 +1384,6 @@ static const struct iio_info gp2ap020a00f_info = {
 	.read_event_config = &gp2ap020a00f_read_event_config,
 	.write_event_value = &gp2ap020a00f_write_event_val,
 	.write_event_config = &gp2ap020a00f_write_event_config,
-	.driver_module = THIS_MODULE,
 };
 
 static int gp2ap020a00f_buffer_postenable(struct iio_dev *indio_dev)
@@ -1481,7 +1480,6 @@ static const struct iio_buffer_setup_ops gp2ap020a00f_buffer_setup_ops = {
 };
 
 static const struct iio_trigger_ops gp2ap020a00f_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 static int gp2ap020a00f_probe(struct i2c_client *client,
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index 059d964772c7..befd693a4a31 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -177,7 +177,6 @@ static int als_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info als_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &als_read_raw,
 	.write_raw = &als_write_raw,
 };
diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index 73fced8a63b7..45107f7537b5 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -156,7 +156,6 @@ static int prox_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info prox_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &prox_read_raw,
 	.write_raw = &prox_write_raw,
 };
diff --git a/drivers/iio/light/isl29018.c b/drivers/iio/light/isl29018.c
index 61f5924b472d..b45400f8fef4 100644
--- a/drivers/iio/light/isl29018.c
+++ b/drivers/iio/light/isl29018.c
@@ -624,14 +624,12 @@ static int isl29018_chip_init(struct isl29018_chip *chip)
 
 static const struct iio_info isl29018_info = {
 	.attrs = &isl29018_group,
-	.driver_module = THIS_MODULE,
 	.read_raw = isl29018_read_raw,
 	.write_raw = isl29018_write_raw,
 };
 
 static const struct iio_info isl29023_info = {
 	.attrs = &isl29023_group,
-	.driver_module = THIS_MODULE,
 	.read_raw = isl29018_read_raw,
 	.write_raw = isl29018_write_raw,
 };
diff --git a/drivers/iio/light/isl29028.c b/drivers/iio/light/isl29028.c
index 3d09c1fc4dad..f9912ab4f65c 100644
--- a/drivers/iio/light/isl29028.c
+++ b/drivers/iio/light/isl29028.c
@@ -536,7 +536,6 @@ static const struct iio_chan_spec isl29028_channels[] = {
 
 static const struct iio_info isl29028_info = {
 	.attrs = &isl29108_group,
-	.driver_module = THIS_MODULE,
 	.read_raw = isl29028_read_raw,
 	.write_raw = isl29028_write_raw,
 };
diff --git a/drivers/iio/light/isl29125.c b/drivers/iio/light/isl29125.c
index 1d2c0c8a1d4f..ed38edcd5efe 100644
--- a/drivers/iio/light/isl29125.c
+++ b/drivers/iio/light/isl29125.c
@@ -214,7 +214,6 @@ static const struct iio_info isl29125_info = {
 	.read_raw = isl29125_read_raw,
 	.write_raw = isl29125_write_raw,
 	.attrs = &isl29125_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int isl29125_buffer_preenable(struct iio_dev *indio_dev)
diff --git a/drivers/iio/light/jsa1212.c b/drivers/iio/light/jsa1212.c
index e8a8931b4f50..811505d925b3 100644
--- a/drivers/iio/light/jsa1212.c
+++ b/drivers/iio/light/jsa1212.c
@@ -271,7 +271,6 @@ static const struct iio_chan_spec jsa1212_channels[] = {
 };
 
 static const struct iio_info jsa1212_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= &jsa1212_read_raw,
 };
 
diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c
index 0443fd2e8757..36208a3652e9 100644
--- a/drivers/iio/light/lm3533-als.c
+++ b/drivers/iio/light/lm3533-als.c
@@ -827,7 +827,6 @@ static int lm3533_als_disable(struct lm3533_als *als)
 static const struct iio_info lm3533_als_info = {
 	.attrs		= &lm3533_als_attribute_group,
 	.event_attrs	= &lm3533_als_event_attribute_group,
-	.driver_module	= THIS_MODULE,
 	.read_raw	= &lm3533_als_read_raw,
 };
 
diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index 67838edd8b37..830a2d45aa4d 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -1158,7 +1158,6 @@ static const struct iio_info ltr501_info_no_irq = {
 	.read_raw = ltr501_read_raw,
 	.write_raw = ltr501_write_raw,
 	.attrs = &ltr501_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ltr501_info = {
@@ -1169,14 +1168,12 @@ static const struct iio_info ltr501_info = {
 	.write_event_value	= &ltr501_write_event,
 	.read_event_config	= &ltr501_read_event_config,
 	.write_event_config	= &ltr501_write_event_config,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ltr301_info_no_irq = {
 	.read_raw = ltr501_read_raw,
 	.write_raw = ltr501_write_raw,
 	.attrs = &ltr301_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ltr301_info = {
@@ -1187,7 +1184,6 @@ static const struct iio_info ltr301_info = {
 	.write_event_value	= &ltr501_write_event,
 	.read_event_config	= &ltr501_read_event_config,
 	.write_event_config	= &ltr501_write_event_config,
-	.driver_module = THIS_MODULE,
 };
 
 static struct ltr501_chip_info ltr501_chip_info_tbl[] = {
diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c
index 81bd8e8da4a6..bcdb0eb9e537 100644
--- a/drivers/iio/light/max44000.c
+++ b/drivers/iio/light/max44000.c
@@ -402,7 +402,6 @@ static const struct attribute_group max44000_attribute_group = {
 };
 
 static const struct iio_info max44000_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= max44000_read_raw,
 	.write_raw		= max44000_write_raw,
 	.write_raw_get_fmt	= max44000_write_raw_get_fmt,
diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
index b91ebc3483ce..54d88b60e303 100644
--- a/drivers/iio/light/opt3001.c
+++ b/drivers/iio/light/opt3001.c
@@ -585,7 +585,6 @@ err:
 }
 
 static const struct iio_info opt3001_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &opt3001_attribute_group,
 	.read_raw = opt3001_read_raw,
 	.write_raw = opt3001_write_raw,
diff --git a/drivers/iio/light/pa12203001.c b/drivers/iio/light/pa12203001.c
index 76a9e12b46bc..30ea1a088dd9 100644
--- a/drivers/iio/light/pa12203001.c
+++ b/drivers/iio/light/pa12203001.c
@@ -306,7 +306,6 @@ static int pa12203001_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info pa12203001_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw = pa12203001_read_raw,
 	.write_raw = pa12203001_write_raw,
 	.attrs = &pa12203001_attr_group,
diff --git a/drivers/iio/light/rpr0521.c b/drivers/iio/light/rpr0521.c
index a6efa12613a2..ffe9ce798ea2 100644
--- a/drivers/iio/light/rpr0521.c
+++ b/drivers/iio/light/rpr0521.c
@@ -538,7 +538,6 @@ static int rpr0521_pxs_drdy_set_state(struct iio_trigger *trigger,
 
 static const struct iio_trigger_ops rpr0521_trigger_ops = {
 	.set_trigger_state = rpr0521_pxs_drdy_set_state,
-	.owner = THIS_MODULE,
 	};
 
 
@@ -830,7 +829,6 @@ static int rpr0521_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info rpr0521_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= rpr0521_read_raw,
 	.write_raw	= rpr0521_write_raw,
 	.attrs		= &rpr0521_attribute_group,
diff --git a/drivers/iio/light/si1145.c b/drivers/iio/light/si1145.c
index 096034c126a4..76f16f9c7616 100644
--- a/drivers/iio/light/si1145.c
+++ b/drivers/iio/light/si1145.c
@@ -989,14 +989,12 @@ static const struct attribute_group si114x_attribute_group = {
 static const struct iio_info si1132_info = {
 	.read_raw = si1145_read_raw,
 	.write_raw = si1145_write_raw,
-	.driver_module = THIS_MODULE,
 	.attrs = &si1132_attribute_group,
 };
 
 static const struct iio_info si114x_info = {
 	.read_raw = si1145_read_raw,
 	.write_raw = si1145_write_raw,
-	.driver_module = THIS_MODULE,
 	.attrs = &si114x_attribute_group,
 };
 
@@ -1237,7 +1235,6 @@ disable:
 }
 
 static const struct iio_trigger_ops si1145_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = si1145_trigger_set_state,
 };
 
diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index 45cf8b0a4363..6e2a169da950 100644
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -409,7 +409,6 @@ static int stk3310_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info stk3310_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= stk3310_read_raw,
 	.write_raw		= stk3310_write_raw,
 	.attrs			= &stk3310_attribute_group,
diff --git a/drivers/iio/light/tcs3414.c b/drivers/iio/light/tcs3414.c
index a795afb7667b..205e5659ce6b 100644
--- a/drivers/iio/light/tcs3414.c
+++ b/drivers/iio/light/tcs3414.c
@@ -241,7 +241,6 @@ static const struct iio_info tcs3414_info = {
 	.read_raw = tcs3414_read_raw,
 	.write_raw = tcs3414_write_raw,
 	.attrs = &tcs3414_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int tcs3414_buffer_preenable(struct iio_dev *indio_dev)
diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c
index 09e6ca5e332e..e7923b514d7a 100644
--- a/drivers/iio/light/tcs3472.c
+++ b/drivers/iio/light/tcs3472.c
@@ -13,7 +13,7 @@
  *
  * Datasheet: http://ams.com/eng/content/download/319364/1117183/file/TCS3472_Datasheet_EN_v2.pdf
  *
- * TODO: interrupt support, thresholds, wait time
+ * TODO: wait time
  */
 
 #include <linux/module.h>
@@ -23,6 +23,7 @@
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
+#include <linux/iio/events.h>
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/buffer.h>
 #include <linux/iio/triggered_buffer.h>
@@ -31,12 +32,15 @@
 
 #define TCS3472_COMMAND BIT(7)
 #define TCS3472_AUTO_INCR BIT(5)
+#define TCS3472_SPECIAL_FUNC (BIT(5) | BIT(6))
+
+#define TCS3472_INTR_CLEAR (TCS3472_COMMAND | TCS3472_SPECIAL_FUNC | 0x06)
 
 #define TCS3472_ENABLE (TCS3472_COMMAND | 0x00)
 #define TCS3472_ATIME (TCS3472_COMMAND | 0x01)
 #define TCS3472_WTIME (TCS3472_COMMAND | 0x03)
-#define TCS3472_AILT (TCS3472_COMMAND | 0x04)
-#define TCS3472_AIHT (TCS3472_COMMAND | 0x06)
+#define TCS3472_AILT (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x04)
+#define TCS3472_AIHT (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x06)
 #define TCS3472_PERS (TCS3472_COMMAND | 0x0c)
 #define TCS3472_CONFIG (TCS3472_COMMAND | 0x0d)
 #define TCS3472_CONTROL (TCS3472_COMMAND | 0x0f)
@@ -47,19 +51,42 @@
 #define TCS3472_GDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x18)
 #define TCS3472_BDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x1a)
 
+#define TCS3472_STATUS_AINT BIT(4)
 #define TCS3472_STATUS_AVALID BIT(0)
+#define TCS3472_ENABLE_AIEN BIT(4)
 #define TCS3472_ENABLE_AEN BIT(1)
 #define TCS3472_ENABLE_PON BIT(0)
 #define TCS3472_CONTROL_AGAIN_MASK (BIT(0) | BIT(1))
 
 struct tcs3472_data {
 	struct i2c_client *client;
+	struct mutex lock;
+	u16 low_thresh;
+	u16 high_thresh;
 	u8 enable;
 	u8 control;
 	u8 atime;
+	u8 apers;
 	u16 buffer[8]; /* 4 16-bit channels + 64-bit timestamp */
 };
 
+static const struct iio_event_spec tcs3472_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_EITHER,
+		.mask_separate = BIT(IIO_EV_INFO_ENABLE) |
+				 BIT(IIO_EV_INFO_PERIOD),
+	},
+};
+
 #define TCS3472_CHANNEL(_color, _si, _addr) { \
 	.type = IIO_INTENSITY, \
 	.modified = 1, \
@@ -75,6 +102,8 @@ struct tcs3472_data {
 		.storagebits = 16, \
 		.endianness = IIO_CPU, \
 	}, \
+	.event_spec = _si ? NULL : tcs3472_events, \
+	.num_event_specs = _si ? 0 : ARRAY_SIZE(tcs3472_events), \
 }
 
 static const int tcs3472_agains[] = { 1, 4, 16, 60 };
@@ -182,6 +211,166 @@ static int tcs3472_write_raw(struct iio_dev *indio_dev,
 	return -EINVAL;
 }
 
+/*
+ * Translation from APERS field value to the number of consecutive out-of-range
+ * clear channel values before an interrupt is generated
+ */
+static const int tcs3472_intr_pers[] = {
+	0, 1, 2, 3, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60
+};
+
+static int tcs3472_read_event(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int *val,
+	int *val2)
+{
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret;
+	unsigned int period;
+
+	mutex_lock(&data->lock);
+
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		*val = (dir == IIO_EV_DIR_RISING) ?
+			data->high_thresh : data->low_thresh;
+		ret = IIO_VAL_INT;
+		break;
+	case IIO_EV_INFO_PERIOD:
+		period = (256 - data->atime) * 2400 *
+			tcs3472_intr_pers[data->apers];
+		*val = period / USEC_PER_SEC;
+		*val2 = period % USEC_PER_SEC;
+		ret = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+static int tcs3472_write_event(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int val,
+	int val2)
+{
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret;
+	u8 command;
+	int period;
+	int i;
+
+	mutex_lock(&data->lock);
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		switch (dir) {
+		case IIO_EV_DIR_RISING:
+			command = TCS3472_AIHT;
+			break;
+		case IIO_EV_DIR_FALLING:
+			command = TCS3472_AILT;
+			break;
+		default:
+			ret = -EINVAL;
+			goto error;
+		}
+		ret = i2c_smbus_write_word_data(data->client, command, val);
+		if (ret)
+			goto error;
+
+		if (dir == IIO_EV_DIR_RISING)
+			data->high_thresh = val;
+		else
+			data->low_thresh = val;
+		break;
+	case IIO_EV_INFO_PERIOD:
+		period = val * USEC_PER_SEC + val2;
+		for (i = 1; i < ARRAY_SIZE(tcs3472_intr_pers) - 1; i++) {
+			if (period <= (256 - data->atime) * 2400 *
+					tcs3472_intr_pers[i])
+				break;
+		}
+		ret = i2c_smbus_write_byte_data(data->client, TCS3472_PERS, i);
+		if (ret)
+			goto error;
+
+		data->apers = i;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+error:
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+static int tcs3472_read_event_config(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir)
+{
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&data->lock);
+	ret = !!(data->enable & TCS3472_ENABLE_AIEN);
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+static int tcs3472_write_event_config(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, int state)
+{
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret = 0;
+	u8 enable_old;
+
+	mutex_lock(&data->lock);
+
+	enable_old = data->enable;
+
+	if (state)
+		data->enable |= TCS3472_ENABLE_AIEN;
+	else
+		data->enable &= ~TCS3472_ENABLE_AIEN;
+
+	if (enable_old != data->enable) {
+		ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
+						data->enable);
+		if (ret)
+			data->enable = enable_old;
+	}
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+static irqreturn_t tcs3472_event_handler(int irq, void *priv)
+{
+	struct iio_dev *indio_dev = priv;
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, TCS3472_STATUS);
+	if (ret >= 0 && (ret & TCS3472_STATUS_AINT)) {
+		iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_INTENSITY, 0,
+						IIO_EV_TYPE_THRESH,
+						IIO_EV_DIR_EITHER),
+				iio_get_time_ns(indio_dev));
+
+		i2c_smbus_read_byte_data(data->client, TCS3472_INTR_CLEAR);
+	}
+
+	return IRQ_HANDLED;
+}
+
 static irqreturn_t tcs3472_trigger_handler(int irq, void *p)
 {
 	struct iio_poll_func *pf = p;
@@ -245,8 +434,11 @@ static const struct attribute_group tcs3472_attribute_group = {
 static const struct iio_info tcs3472_info = {
 	.read_raw = tcs3472_read_raw,
 	.write_raw = tcs3472_write_raw,
+	.read_event_value = tcs3472_read_event,
+	.write_event_value = tcs3472_write_event,
+	.read_event_config = tcs3472_read_event_config,
+	.write_event_config = tcs3472_write_event_config,
 	.attrs = &tcs3472_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int tcs3472_probe(struct i2c_client *client,
@@ -263,6 +455,7 @@ static int tcs3472_probe(struct i2c_client *client,
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
+	mutex_init(&data->lock);
 
 	indio_dev->dev.parent = &client->dev;
 	indio_dev->info = &tcs3472_info;
@@ -292,12 +485,29 @@ static int tcs3472_probe(struct i2c_client *client,
 		return ret;
 	data->atime = ret;
 
+	ret = i2c_smbus_read_word_data(data->client, TCS3472_AILT);
+	if (ret < 0)
+		return ret;
+	data->low_thresh = ret;
+
+	ret = i2c_smbus_read_word_data(data->client, TCS3472_AIHT);
+	if (ret < 0)
+		return ret;
+	data->high_thresh = ret;
+
+	data->apers = 1;
+	ret = i2c_smbus_write_byte_data(data->client, TCS3472_PERS,
+					data->apers);
+	if (ret < 0)
+		return ret;
+
 	ret = i2c_smbus_read_byte_data(data->client, TCS3472_ENABLE);
 	if (ret < 0)
 		return ret;
 
 	/* enable device */
 	data->enable = ret | TCS3472_ENABLE_PON | TCS3472_ENABLE_AEN;
+	data->enable &= ~TCS3472_ENABLE_AIEN;
 	ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
 		data->enable);
 	if (ret < 0)
@@ -308,12 +518,24 @@ static int tcs3472_probe(struct i2c_client *client,
 	if (ret < 0)
 		return ret;
 
+	if (client->irq) {
+		ret = request_threaded_irq(client->irq, NULL,
+					   tcs3472_event_handler,
+					   IRQF_TRIGGER_FALLING | IRQF_SHARED |
+					   IRQF_ONESHOT,
+					   client->name, indio_dev);
+		if (ret)
+			goto buffer_cleanup;
+	}
+
 	ret = iio_device_register(indio_dev);
 	if (ret < 0)
-		goto buffer_cleanup;
+		goto free_irq;
 
 	return 0;
 
+free_irq:
+	free_irq(client->irq, indio_dev);
 buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
 	return ret;
@@ -321,8 +543,19 @@ buffer_cleanup:
 
 static int tcs3472_powerdown(struct tcs3472_data *data)
 {
-	return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
-		data->enable & ~(TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON));
+	int ret;
+	u8 enable_mask = TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON;
+
+	mutex_lock(&data->lock);
+
+	ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
+		data->enable & ~enable_mask);
+	if (!ret)
+		data->enable &= ~enable_mask;
+
+	mutex_unlock(&data->lock);
+
+	return ret;
 }
 
 static int tcs3472_remove(struct i2c_client *client)
@@ -330,6 +563,7 @@ static int tcs3472_remove(struct i2c_client *client)
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 
 	iio_device_unregister(indio_dev);
+	free_irq(client->irq, indio_dev);
 	iio_triggered_buffer_cleanup(indio_dev);
 	tcs3472_powerdown(iio_priv(indio_dev));
 
@@ -348,8 +582,19 @@ static int tcs3472_resume(struct device *dev)
 {
 	struct tcs3472_data *data = iio_priv(i2c_get_clientdata(
 		to_i2c_client(dev)));
-	return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
-		data->enable | (TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON));
+	int ret;
+	u8 enable_mask = TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON;
+
+	mutex_lock(&data->lock);
+
+	ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
+		data->enable | enable_mask);
+	if (!ret)
+		data->enable |= enable_mask;
+
+	mutex_unlock(&data->lock);
+
+	return ret;
 }
 #endif
 
diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c
index 7599693f7fe9..6bbb0b1e6032 100644
--- a/drivers/iio/light/tsl2563.c
+++ b/drivers/iio/light/tsl2563.c
@@ -697,13 +697,11 @@ static int tsl2563_read_interrupt_config(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info tsl2563_info_no_irq = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &tsl2563_read_raw,
 	.write_raw = &tsl2563_write_raw,
 };
 
 static const struct iio_info tsl2563_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &tsl2563_read_raw,
 	.write_raw = &tsl2563_write_raw,
 	.read_event_value = &tsl2563_read_thresh,
diff --git a/drivers/iio/light/tsl2583.c b/drivers/iio/light/tsl2583.c
index fb711ed4862e..f2e50edaa242 100644
--- a/drivers/iio/light/tsl2583.c
+++ b/drivers/iio/light/tsl2583.c
@@ -804,7 +804,6 @@ static int tsl2583_write_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info tsl2583_info = {
 	.attrs = &tsl2583_attribute_group,
-	.driver_module = THIS_MODULE,
 	.read_raw = tsl2583_read_raw,
 	.write_raw = tsl2583_write_raw,
 };
diff --git a/drivers/iio/light/tsl4531.c b/drivers/iio/light/tsl4531.c
index cf94ec72b181..06171cb76e23 100644
--- a/drivers/iio/light/tsl4531.c
+++ b/drivers/iio/light/tsl4531.c
@@ -144,7 +144,6 @@ static const struct iio_info tsl4531_info = {
 	.read_raw = tsl4531_read_raw,
 	.write_raw = tsl4531_write_raw,
 	.attrs = &tsl4531_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int tsl4531_check_id(struct i2c_client *client)
diff --git a/drivers/iio/light/us5182d.c b/drivers/iio/light/us5182d.c
index d571ad7291ed..68e52943879a 100644
--- a/drivers/iio/light/us5182d.c
+++ b/drivers/iio/light/us5182d.c
@@ -714,7 +714,6 @@ err:
 }
 
 static const struct iio_info us5182d_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw = us5182d_read_raw,
 	.write_raw = us5182d_write_raw,
 	.attrs = &us5182d_attr_group,
diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
index 360b6e98137a..c599a90506ad 100644
--- a/drivers/iio/light/vcnl4000.c
+++ b/drivers/iio/light/vcnl4000.c
@@ -155,7 +155,6 @@ static int vcnl4000_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info vcnl4000_info = {
 	.read_raw = vcnl4000_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int vcnl4000_probe(struct i2c_client *client,
diff --git a/drivers/iio/light/veml6070.c b/drivers/iio/light/veml6070.c
index bc1c4cb782cd..f4bf3c5b5eda 100644
--- a/drivers/iio/light/veml6070.c
+++ b/drivers/iio/light/veml6070.c
@@ -136,7 +136,6 @@ static int veml6070_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info veml6070_info = {
 	.read_raw = veml6070_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int veml6070_probe(struct i2c_client *client,
diff --git a/drivers/iio/light/vl6180.c b/drivers/iio/light/vl6180.c
index 6e25b724d941..192c77ef3608 100644
--- a/drivers/iio/light/vl6180.c
+++ b/drivers/iio/light/vl6180.c
@@ -24,6 +24,7 @@
 #include <linux/err.h>
 #include <linux/of.h>
 #include <linux/delay.h>
+#include <linux/util_macros.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -86,6 +87,8 @@
 struct vl6180_data {
 	struct i2c_client *client;
 	struct mutex lock;
+	unsigned int als_gain_milli;
+	unsigned int als_it_ms;
 };
 
 enum { VL6180_ALS, VL6180_RANGE, VL6180_PROX };
@@ -275,19 +278,17 @@ static const struct iio_chan_spec vl6180_channels[] = {
 };
 
 /*
- * Columns 3 & 4 represent the same value in decimal and hex notations.
- * Kept in order to avoid the datatype conversion while reading the
- * hardware_gain.
+ * Available Ambient Light Sensor gain settings, 1/1000th, and
+ * corresponding setting for the VL6180_ALS_GAIN register
  */
-static const int vl6180_als_gain[8][4] = {
-	{ 1,	0,	70,	VL6180_ALS_GAIN_1 },
-	{ 1,    250000, 69,	VL6180_ALS_GAIN_1_25 },
-	{ 1,    670000, 68,	VL6180_ALS_GAIN_1_67 },
-	{ 2,    500000, 67,	VL6180_ALS_GAIN_2_5 },
-	{ 5,    0,      66,	VL6180_ALS_GAIN_5 },
-	{ 10,   0,      65,	VL6180_ALS_GAIN_10 },
-	{ 20,   0,      64,	VL6180_ALS_GAIN_20 },
-	{ 40,   0,      71,	VL6180_ALS_GAIN_40 }
+static const int vl6180_als_gain_tab[8] = {
+	1000, 1250, 1670, 2500, 5000, 10000, 20000, 40000
+};
+static const u8 vl6180_als_gain_tab_bits[8] = {
+	VL6180_ALS_GAIN_1,    VL6180_ALS_GAIN_1_25,
+	VL6180_ALS_GAIN_1_67, VL6180_ALS_GAIN_2_5,
+	VL6180_ALS_GAIN_5,    VL6180_ALS_GAIN_10,
+	VL6180_ALS_GAIN_20,   VL6180_ALS_GAIN_40
 };
 
 static int vl6180_read_raw(struct iio_dev *indio_dev,
@@ -295,7 +296,7 @@ static int vl6180_read_raw(struct iio_dev *indio_dev,
 				int *val, int *val2, long mask)
 {
 	struct vl6180_data *data = iio_priv(indio_dev);
-	int ret, i;
+	int ret;
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
@@ -306,19 +307,20 @@ static int vl6180_read_raw(struct iio_dev *indio_dev,
 
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_INT_TIME:
-		ret = vl6180_read_word(data->client, VL6180_ALS_IT);
-		if (ret < 0)
-			return ret;
-		*val = 0; /* 1 count = 1ms (0 = 1ms) */
-		*val2 = (ret + 1) * 1000; /* convert to seconds */
+		*val = data->als_it_ms;
+		*val2 = 1000;
+
+		return IIO_VAL_FRACTIONAL;
 
-		return IIO_VAL_INT_PLUS_MICRO;
 	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_LIGHT:
-			*val = 0; /* one ALS count is 0.32 Lux */
-			*val2 = 320000;
-			break;
+			/* one ALS count is 0.32 Lux @ gain 1, IT 100 ms */
+			*val = 32000; /* 0.32 * 1000 * 100 */
+			*val2 = data->als_gain_milli * data->als_it_ms;
+
+			return IIO_VAL_FRACTIONAL;
+
 		case IIO_DISTANCE:
 			*val = 0; /* sensor reports mm, scale to meter */
 			*val2 = 1000;
@@ -329,17 +331,11 @@ static int vl6180_read_raw(struct iio_dev *indio_dev,
 
 		return IIO_VAL_INT_PLUS_MICRO;
 	case IIO_CHAN_INFO_HARDWAREGAIN:
-		ret = vl6180_read_byte(data->client, VL6180_ALS_GAIN);
-		if (ret < 0)
-			return -EINVAL;
-		for (i = 0; i < ARRAY_SIZE(vl6180_als_gain); i++) {
-			if (ret == vl6180_als_gain[i][2]) {
-				*val = vl6180_als_gain[i][0];
-				*val2 = vl6180_als_gain[i][1];
-			}
-		}
+		*val = data->als_gain_milli;
+		*val2 = 1000;
+
+		return IIO_VAL_FRACTIONAL;
 
-		return IIO_VAL_INT_PLUS_MICRO;
 	default:
 		return -EINVAL;
 	}
@@ -365,37 +361,53 @@ static int vl6180_hold(struct vl6180_data *data, bool hold)
 
 static int vl6180_set_als_gain(struct vl6180_data *data, int val, int val2)
 {
-	int i, ret;
-
-	for (i = 0; i < ARRAY_SIZE(vl6180_als_gain); i++) {
-		if (val == vl6180_als_gain[i][0] &&
-			val2 == vl6180_als_gain[i][1]) {
-			mutex_lock(&data->lock);
-			ret = vl6180_hold(data, true);
-			if (ret < 0)
-				goto fail;
-			ret = vl6180_write_byte(data->client, VL6180_ALS_GAIN,
-				vl6180_als_gain[i][3]);
-fail:
-			vl6180_hold(data, false);
-			mutex_unlock(&data->lock);
-			return ret;
-		}
-	}
+	int i, ret, gain;
 
-	return -EINVAL;
+	if (val < 1 || val > 40)
+		return -EINVAL;
+
+	gain = (val * 1000000 + val2) / 1000;
+	if (gain < 1 || gain > 40000)
+		return -EINVAL;
+
+	i = find_closest(gain, vl6180_als_gain_tab,
+			 ARRAY_SIZE(vl6180_als_gain_tab));
+
+	mutex_lock(&data->lock);
+	ret = vl6180_hold(data, true);
+	if (ret < 0)
+		goto fail;
+
+	ret = vl6180_write_byte(data->client, VL6180_ALS_GAIN,
+				vl6180_als_gain_tab_bits[i]);
+
+	if (ret >= 0)
+		data->als_gain_milli = vl6180_als_gain_tab[i];
+
+fail:
+	vl6180_hold(data, false);
+	mutex_unlock(&data->lock);
+	return ret;
 }
 
-static int vl6180_set_it(struct vl6180_data *data, int val2)
+static int vl6180_set_it(struct vl6180_data *data, int val, int val2)
 {
-	int ret;
+	int ret, it_ms;
+
+	it_ms = (val2 + 500) / 1000; /* round to ms */
+	if (val != 0 || it_ms < 1 || it_ms > 512)
+		return -EINVAL;
 
 	mutex_lock(&data->lock);
 	ret = vl6180_hold(data, true);
 	if (ret < 0)
 		goto fail;
-	ret = vl6180_write_word(data->client, VL6180_ALS_IT,
-		(val2 - 500) / 1000); /* write value in ms */
+
+	ret = vl6180_write_word(data->client, VL6180_ALS_IT, it_ms - 1);
+
+	if (ret >= 0)
+		data->als_it_ms = it_ms;
+
 fail:
 	vl6180_hold(data, false);
 	mutex_unlock(&data->lock);
@@ -411,10 +423,8 @@ static int vl6180_write_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_INT_TIME:
-		if (val != 0 || val2 < 500 || val2 >= 512500)
-			return -EINVAL;
+		return vl6180_set_it(data, val, val2);
 
-		return vl6180_set_it(data, val2);
 	case IIO_CHAN_INFO_HARDWAREGAIN:
 		if (chan->type != IIO_LIGHT)
 			return -EINVAL;
@@ -429,7 +439,6 @@ static const struct iio_info vl6180_info = {
 	.read_raw = vl6180_read_raw,
 	.write_raw = vl6180_write_raw,
 	.attrs = &vl6180_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int vl6180_init(struct vl6180_data *data)
@@ -468,11 +477,13 @@ static int vl6180_init(struct vl6180_data *data)
 		return ret;
 
 	/* ALS integration time: 100ms */
+	data->als_it_ms = 100;
 	ret = vl6180_write_word(client, VL6180_ALS_IT, VL6180_ALS_IT_100);
 	if (ret < 0)
 		return ret;
 
 	/* ALS gain: 1 */
+	data->als_gain_milli = 1000;
 	ret = vl6180_write_byte(client, VL6180_ALS_GAIN, VL6180_ALS_GAIN_1);
 	if (ret < 0)
 		return ret;