Commit 2521129a authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'char-misc-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc 

Pull char / misc driver patches from Greg KH:
 "Here's the big driver misc / char pull request for 3.17-rc1.

  Lots of things in here, the thunderbolt support for Apple laptops,
  some other new drivers, testing fixes, and other good things.  All
  have been in linux-next for a long time"

* tag 'char-misc-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (119 commits)
  misc: bh1780: Introduce the use of devm_kzalloc
  Lattice ECP3 FPGA: Correct endianness
  drivers/misc/ti-st: Load firmware from ti-connectivity directory.
  dt-bindings: extcon: Add support for SM5502 MUIC device
  extcon: sm5502: Change internal hardware switch according to cable type
  extcon: sm5502: Detect cable state after completing platform booting
  extcon: sm5502: Add support new SM5502 extcon device driver
  extcon: arizona: Get MICVDD against extcon device
  extcon: Remove unnecessary OOM messages
  misc: vexpress: Fix sparse non static symbol warnings
  mei: drop unused hw dependent fw status functions
  misc: bh1770glc: Use managed functions
  pcmcia: remove DEFINE_PCI_DEVICE_TABLE usage
  misc: remove DEFINE_PCI_DEVICE_TABLE usage
  ipack: Replace DEFINE_PCI_DEVICE_TABLE macro use
  drivers/char/dsp56k.c: drop check for negativity of unsigned parameter
  mei: fix return value on disconnect timeout
  mei: don't schedule suspend in pm idle
  mei: start disconnect request timer consistently
  mei: reset client connection state on timeout
  ...
parents 98a96f20 16eb2bfc

Documentation/ABI/testing/sysfs-class-mei

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What:		/sys/class/mei/

Date:		May 2014

KernelVersion:	3.17

Contact:	Tomas Winkler <tomas.winkler@intel.com>

Description:

		The mei/ class sub-directory belongs to mei device class





What:		/sys/class/mei/meiN/

Date:		May 2014

KernelVersion:	3.17

Contact:	Tomas Winkler <tomas.winkler@intel.com>

Description:

		The /sys/class/mei/meiN directory is created for

		each probed mei device

Documentation/ABI/testing/sysfs-driver-genwqe

+9 −0
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@@ -25,6 +25,15 @@ Date: Oct 2013 
Contact:        haver@linux.vnet.ibm.com

Description:    Interface to set the next bitstream to be used.



What:           /sys/class/genwqe/genwqe<n>_card/reload_bitstream

Date:           May 2014

Contact:        klebers@linux.vnet.ibm.com

Description:    Interface to trigger a PCIe card reset to reload the bitstream.

                  sudo sh -c 'echo 1 > \

                    /sys/class/genwqe/genwqe0_card/reload_bitstream'

                If successfully, the card will come back with the bitstream set

                on 'next_bitstream'.



What:           /sys/class/genwqe/genwqe<n>_card/tempsens

Date:           Oct 2013

Contact:        haver@linux.vnet.ibm.com

Documentation/devicetree/bindings/extcon/extcon-sm5502.txt

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* SM5502 MUIC (Micro-USB Interface Controller) device



The Silicon Mitus SM5502 is a MUIC (Micro-USB Interface Controller) device

which can detect the state of external accessory when external accessory is

attached or detached and button is pressed or released. It is interfaced to

the host controller using an I2C interface.



Required properties:

- compatible: Should be "siliconmitus,sm5502-muic"

- reg: Specifies the I2C slave address of the MUIC block. It should be 0x25

- interrupt-parent: Specifies the phandle of the interrupt controller to which

  the interrupts from sm5502 are delivered to.

- interrupts: Interrupt specifiers for detection interrupt sources.



Example:



	sm5502@25 {

		compatible = "siliconmitus,sm5502-muic";

		interrupt-parent = <&gpx1>;

		interrupts = <5 0>;

		reg = <0x25>;

	};

Documentation/mic/mic_overview.txt

+41 −26
Original line number Diff line number Diff line
@@ -17,6 +17,13 @@ for applications. A key benefit of our solution is that it leverages 
the standard virtio framework for network, disk and console devices,

though in our case the virtio framework is used across a PCIe bus.



MIC PCIe card has a dma controller with 8 channels. These channels are

shared between the host s/w and the card s/w. 0 to 3 are used by host

and 4 to 7 by card. As the dma device doesn't show up as PCIe device,

a virtual bus called mic bus is created and virtual dma devices are

created on it by the host/card drivers. On host the channels are private

and used only by the host driver to transfer data for the virtio devices.



Here is a block diagram of the various components described above. The

virtio backends are situated on the host rather than the card given better

single threaded performance for the host compared to MIC, the ability of
@@ -39,11 +46,19 @@ the fact that the virtio block storage backend can only be on the host. 
            +-------------------+     |Kernel +--------------------------+

                      |               |       | Virtio over PCIe IOCTLs  |

                      |               |       +--------------------------+

      +--------------+        |                   |

      |Intel MIC     |        |            +---------------+

      |Card Driver   |        |            |Intel MIC      |

      +--------------+        |            |Host Driver    |

              |               |            +---------------+

+-----------+         |               |                   |  +-----------+

| MIC DMA   |         |               |                   |  | MIC DMA   |

| Driver    |         |               |                   |  | Driver    |

+-----------+         |               |                   |  +-----------+

      |               |               |                   |        |

+---------------+     |               |                   |  +----------------+

|MIC virtual Bus|     |               |                   |  |MIC virtual Bus |

+---------------+     |               |                   |  +----------------+

      |               |               |                   |              |

      |   +--------------+            |            +---------------+     |

      |   |Intel MIC     |            |            |Intel MIC      |     |

      +---|Card Driver   |            |            |Host Driver    |     |

          +--------------+            |            +---------------+-----+

                      |               |                   |

             +-------------------------------------------------------------+

             |                                                             |

Documentation/mic/mpssd/mpss

+7 −7
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@@ -48,18 +48,18 @@ start() 
	fi



	echo -e $"Starting MPSS Stack"

	echo -e $"Loading MIC_HOST Module"

	echo -e $"Loading MIC_X100_DMA & MIC_HOST Modules"



	# Ensure the driver is loaded

	if [ ! -d "$sysfs" ]; then

		modprobe mic_host

	for f in "mic_host" "mic_x100_dma"

	do

		modprobe $f

		RETVAL=$?

		if [ $RETVAL -ne 0 ]; then

			failure

			echo

			return $RETVAL

		fi

	fi

	done



	# Start the daemon

	echo -n $"Starting MPSSD "
@@ -170,8 +170,8 @@ unload() 
	stop



	sleep 5

	echo -n $"Removing MIC_HOST Module: "

	modprobe -r mic_host

	echo -n $"Removing MIC_HOST & MIC_X100_DMA Modules: "

	modprobe -r mic_host mic_x100_dma

	RETVAL=$?

	[ $RETVAL -ne 0 ] && failure || success

	echo

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