Commit 4046136a authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'char-misc-3.16-rc1' of... 

Merge tag 'char-misc-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into next

Pull char/misc driver patches from Greg KH:
 "Here is the big char / misc driver update for 3.16-rc1.

  Lots of different driver updates for a variety of different drivers
  and minor driver subsystems.

  All have been in linux-next with no reported issues"

* tag 'char-misc-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (79 commits)
  hv: use correct order when freeing monitor_pages
  spmi: of: fixup generic SPMI devicetree binding example
  applicom: dereferencing NULL on error path
  misc: genwqe: fix uninitialized return value in genwqe_free_sync_sgl()
  miscdevice.h: Simple syntax fix to make pointers consistent.
  MAINTAINERS: Add miscdevice.h to file list for char/misc drivers.
  mcb: Add support for shared PCI IRQs
  drivers: Remove duplicate conditionally included subdirs
  misc: atmel_pwm: only build for supported platforms
  mei: me: move probe quirk to cfg structure
  mei: add per device configuration
  mei: me: read H_CSR after asserting reset
  mei: me: drop harmful wait optimization
  mei: me: fix hw ready reset flow
  mei: fix memory leak of mei_clients array
  uio: fix vma io range check in mmap
  drivers: uio_dmem_genirq: Fix memory leak in uio_dmem_genirq_probe()
  w1: do not unlock unheld list_mutex in __w1_remove_master_device()
  w1: optional bundling of netlink kernel replies
  connector: allow multiple messages to be sent in one packet
  ...
parents b55a0ff8 a100d88d

Documentation/connector/connector.txt

+11 −4
Original line number Diff line number Diff line
@@ -24,7 +24,8 @@ netlink based networking for inter-process communication in a significantly 
easier way:



int cn_add_callback(struct cb_id *id, char *name, void (*callback) (struct cn_msg *, struct netlink_skb_parms *));

void cn_netlink_send(struct cn_msg *msg, u32 __group, int gfp_mask);

void cn_netlink_send_multi(struct cn_msg *msg, u16 len, u32 portid, u32 __group, int gfp_mask);

void cn_netlink_send(struct cn_msg *msg, u32 portid, u32 __group, int gfp_mask);



struct cb_id

{
@@ -71,15 +72,21 @@ void cn_del_callback(struct cb_id *id); 
 struct cb_id *id		- unique connector's user identifier.





int cn_netlink_send(struct cn_msg *msg, u32 __groups, int gfp_mask);

int cn_netlink_send_multi(struct cn_msg *msg, u16 len, u32 portid, u32 __groups, int gfp_mask);

int cn_netlink_send(struct cn_msg *msg, u32 portid, u32 __groups, int gfp_mask);



 Sends message to the specified groups.  It can be safely called from

 softirq context, but may silently fail under strong memory pressure.

 If there are no listeners for given group -ESRCH can be returned.



 struct cn_msg *		- message header(with attached data).

 u16 len			- for *_multi multiple cn_msg messages can be sent

 u32 port			- destination port.

 				  If non-zero the message will be sent to the

				  given port, which should be set to the

				  original sender.

 u32 __group			- destination group.

				  If __group is zero, then appropriate group will

				  If port and __group is zero, then appropriate group will

				  be searched through all registered connector users,

				  and message will be delivered to the group which was

				  created for user with the same ID as in msg.
@@ -111,7 +118,7 @@ acknowledge number MUST be the same + 1. 
If we receive a message and its sequence number is not equal to one we

are expecting, then it is a new message.  If we receive a message and

its sequence number is the same as one we are expecting, but its

acknowledge is not equal to the acknowledge number in the original

acknowledge is not equal to the sequence number in the original

message + 1, then it is a new message.



Obviously, the protocol header contains the above id.

Documentation/devicetree/bindings/misc/arm-charlcd.txt

0 → 100644
+18 −0
Original line number Diff line number Diff line 
ARM Versatile Character LCD

-----------------------------------------------------

This binding defines the character LCD interface found on ARM Versatile AB

and PB reference platforms.



Required properties:

- compatible : "arm,versatile-clcd"

- reg : Location and size of character LCD registers



Optional properties:

- interrupts - single interrupt for character LCD. The character LCD can

  operate in polled mode without an interrupt.



Example:

	lcd@10008000 {

		compatible = "arm,versatile-lcd";

		reg = <0x10008000 0x1000>;

	};

Documentation/devicetree/bindings/spmi/spmi.txt

+1 −1
Original line number Diff line number Diff line
@@ -26,7 +26,7 @@ Each child node must have one and only one 'reg' entry of type SPMI_USID. 
		reg = <...>;



		#address-cells = <2>;

		#size-cells <0>;

		#size-cells = <0>;



		child@0 {

			compatible = "...";

Documentation/w1/w1.generic

+1 −1
Original line number Diff line number Diff line
@@ -82,7 +82,7 @@ driver - (standard) symlink to the w1 driver 
w1_master_add      - Manually register a slave device

w1_master_attempts - the number of times a search was attempted

w1_master_max_slave_count

                   - the maximum slaves that may be attached to a master

                   - maximum number of slaves to search for at a time

w1_master_name     - the name of the device (w1_bus_masterX)

w1_master_pullup   - 5V strong pullup 0 enabled, 1 disabled

w1_master_remove   - Manually remove a slave device

Documentation/w1/w1.netlink

+8 −5
Original line number Diff line number Diff line
@@ -30,7 +30,7 @@ Protocol. 
			W1_SLAVE_CMD

				userspace command for slave device

				(read/write/touch)

	__u8 res	- reserved

	__u8 status	- error indication from kernel

	__u16 len	- size of data attached to this header data

	union {

		__u8 id[8];			 - slave unique device id
@@ -44,10 +44,14 @@ Protocol. 
	__u8 cmd	- command opcode.

			W1_CMD_READ 	- read command

			W1_CMD_WRITE	- write command

			W1_CMD_TOUCH	- touch command

				(write and sample data back to userspace)

			W1_CMD_SEARCH	- search command

			W1_CMD_ALARM_SEARCH - alarm search command

			W1_CMD_TOUCH	- touch command

				(write and sample data back to userspace)

			W1_CMD_RESET	- send bus reset

			W1_CMD_SLAVE_ADD	- add slave to kernel list

			W1_CMD_SLAVE_REMOVE	- remove slave from kernel list

			W1_CMD_LIST_SLAVES	- get slaves list from kernel

	__u8 res	- reserved

	__u16 len	- length of data for this command

		For read command data must be allocated like for write command
@@ -87,8 +91,7 @@ format: 
	id0 ... idN



	Each message is at most 4k in size, so if number of master devices

	exceeds this, it will be split into several messages,

	cn.seq will be increased for each one.

	exceeds this, it will be split into several messages.



W1 search and alarm search commands.

request:

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