Merge tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big set of char, misc, and other assorted driver subsystem
  patches for 5.10-rc1.

  There's a lot of different things in here, all over the drivers/
  directory. Some summaries:

   - soundwire driver updates

   - habanalabs driver updates

   - extcon driver updates

   - nitro_enclaves new driver

   - fsl-mc driver and core updates

   - mhi core and bus updates

   - nvmem driver updates

   - eeprom driver updates

   - binder driver updates and fixes

   - vbox minor bugfixes

   - fsi driver updates

   - w1 driver updates

   - coresight driver updates

   - interconnect driver updates

   - misc driver updates

   - other minor driver updates

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (396 commits)
  binder: fix UAF when releasing todo list
  docs: w1: w1_therm: Fix broken xref, mistakes, clarify text
  misc: Kconfig: fix a HISI_HIKEY_USB dependency
  LSM: Fix type of id parameter in kernel_post_load_data prototype
  misc: Kconfig: add a new dependency for HISI_HIKEY_USB
  firmware_loader: fix a kernel-doc markup
  w1: w1_therm: make w1_poll_completion static
  binder: simplify the return expression of binder_mmap
  test_firmware: Test partial read support
  firmware: Add request_partial_firmware_into_buf()
  firmware: Store opt_flags in fw_priv
  fs/kernel_file_read: Add "offset" arg for partial reads
  IMA: Add support for file reads without contents
  LSM: Add "contents" flag to kernel_read_file hook
  module: Call security_kernel_post_load_data()
  firmware_loader: Use security_post_load_data()
  LSM: Introduce kernel_post_load_data() hook
  fs/kernel_read_file: Add file_size output argument
  fs/kernel_read_file: Switch buffer size arg to size_t
  fs/kernel_read_file: Remove redundant size argument
  ...

1 files changed, 49 insertions, 2 deletions

diff --git a/Documentation/ABI/testing/sysfs-driver-w1_therm b/Documentation/ABI/testing/sysfs-driver-w1_therm
index 9b488c0afdfa..8873bbb075cb 100644
--- a/Documentation/ABI/testing/sysfs-driver-w1_therm
+++ b/Documentation/ABI/testing/sysfs-driver-w1_therm
@@ -49,10 +49,13 @@ Description:
 		will be changed only in device RAM, so it will be cleared when
 		power is lost. Trigger a 'save' to EEPROM command to keep
 		values after power-on. Read or write are :
-			* '9..12': device resolution in bit
+			* '9..14': device resolution in bit
 			or resolution to set in bit
 			* '-xx': xx is kernel error when reading the resolution
 			* Anything else: do nothing
+		Some DS18B20 clones are fixed in 12-bit resolution, so the
+		actual resolution is read back from the chip and verified. Error
+		is reported if the results differ.
 Users:		any user space application which wants to communicate with
 		w1_term device
 
@@ -86,7 +89,7 @@ Description:
 		*write* :
 			* '0' : save the 2 or 3 bytes to the device EEPROM
 			(i.e. TH, TL and config register)
-			* '9..12' : set the device resolution in RAM
+			* '9..14' : set the device resolution in RAM
 			(if supported)
 			* Anything else: do nothing
 		refer to Documentation/w1/slaves/w1_therm.rst for detailed
@@ -114,3 +117,47 @@ Description:
 		of the bulk read command (not the current temperature).
 Users:		any user space application which wants to communicate with
 		w1_term device
+
+
+What:		/sys/bus/w1/devices/.../conv_time
+Date:		July 2020
+Contact:	Ivan Zaentsev <ivan.zaentsev@wirenboard.ru>
+Description:
+		(RW) Get, set, or measure a temperature conversion time. The
+		setting remains active until a resolution change. Then it is
+		reset to default (datasheet) conversion time for a new
+		resolution.
+
+		*read*: Actual conversion time in milliseconds. *write*:
+			'0': Set the default conversion time from the datasheet.
+			'1': Measure and set the conversion time. Make a single
+			     temperature conversion, measure an actual value.
+			     Increase it by 20% for temperature range. A new
+			     conversion time can be obtained by reading this
+			     same attribute.
+			other positive value:
+			     Set the conversion time in milliseconds.
+
+Users:		An application using the w1_term device
+
+
+What:		/sys/bus/w1/devices/.../features
+Date:		July 2020
+Contact:	Ivan Zaentsev <ivan.zaentsev@wirenboard.ru>
+Description:
+		(RW) Control optional driver settings.
+		Bit masks to read/write (bitwise OR):
+
+                1: Enable check for conversion success. If byte 6 of
+                   scratchpad memory is 0xC after conversion, and
+                   temperature reads 85.00 (powerup value) or 127.94
+                   (insufficient power) - return a conversion error.
+
+                2: Enable poll for conversion completion. Generate read cycles
+                   after the conversion start and wait for 1's. In parasite
+                   power mode this feature is not available.
+
+		*read*:  Currently selected features.
+		*write*: Select features.
+
+Users:		An application using the w1_term device