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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-13 12:11:01 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-13 12:11:01 -0800 |
| commit | b78b499a67c3f77aeb6cd0b54724bc38b141255d (patch) | |
| tree | 8ebdb5303bb1552577182d9fe4086910b8648d22 | |
| parent | 098c30557a9a19827240aaadc137e4668157dc6b (diff) | |
| parent | 190cc65e912de7e8f7ebddcecfbf55a610281a8c (diff) | |
| download | linux-b78b499a67c3f77aeb6cd0b54724bc38b141255d.tar.gz linux-b78b499a67c3f77aeb6cd0b54724bc38b141255d.tar.bz2 linux-b78b499a67c3f77aeb6cd0b54724bc38b141255d.zip | |
Merge tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here's the big char/misc driver patches for 4.10-rc1. Lots of tiny
changes over lots of "minor" driver subsystems, the largest being some
new FPGA drivers. Other than that, a few other new drivers, but no new
driver subsystems added for this kernel cycle, a nice change.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (107 commits)
uio-hv-generic: store physical addresses instead of virtual
Tools: hv: kvp: configurable external scripts path
uio-hv-generic: new userspace i/o driver for VMBus
vmbus: add support for dynamic device id's
hv: change clockevents unbind tactics
hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels()
hyperv: Fix spelling of HV_UNKOWN
mei: bus: enable non-blocking RX
mei: fix the back to back interrupt handling
mei: synchronize irq before initiating a reset.
VME: Remove shutdown entry from vme_driver
auxdisplay: ht16k33: select framebuffer helper modules
MAINTAINERS: add git url for fpga
fpga: Clarify how write_init works streaming modes
fpga zynq: Fix incorrect ISR state on bootup
fpga zynq: Remove priv->dev
fpga zynq: Add missing \n to messages
fpga: Add COMPILE_TEST to all drivers
uio: pruss: add clk_disable()
char/pcmcia: add some error checking in scr24x_read()
...
105 files changed, 5981 insertions, 696 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-fpga-bridge b/Documentation/ABI/testing/sysfs-class-fpga-bridge new file mode 100644 index 000000000000..312ae2c579d8 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-fpga-bridge @@ -0,0 +1,11 @@ +What: /sys/class/fpga_bridge/<bridge>/name +Date: January 2016 +KernelVersion: 4.5 +Contact: Alan Tull <atull@opensource.altera.com> +Description: Name of low level FPGA bridge driver. + +What: /sys/class/fpga_bridge/<bridge>/state +Date: January 2016 +KernelVersion: 4.5 +Contact: Alan Tull <atull@opensource.altera.com> +Description: Show bridge state as "enabled" or "disabled" diff --git a/Documentation/ABI/testing/sysfs-class-mei b/Documentation/ABI/testing/sysfs-class-mei index 80d9888a8ece..5096a82f4cde 100644 --- a/Documentation/ABI/testing/sysfs-class-mei +++ b/Documentation/ABI/testing/sysfs-class-mei @@ -29,3 +29,19 @@ Description: Display fw status registers content Also number of registers varies between 1 and 6 depending on generation. +What: /sys/class/mei/meiN/hbm_ver +Date: Aug 2016 +KernelVersion: 4.9 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Display the negotiated HBM protocol version. + + The HBM protocol version negotiated + between the driver and the device. + +What: /sys/class/mei/meiN/hbm_ver_drv +Date: Aug 2016 +KernelVersion: 4.9 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Display the driver HBM protocol version. + + The HBM protocol version supported by the driver. diff --git a/Documentation/devicetree/bindings/display/ht16k33.txt b/Documentation/devicetree/bindings/display/ht16k33.txt new file mode 100644 index 000000000000..8e5b30b87754 --- /dev/null +++ b/Documentation/devicetree/bindings/display/ht16k33.txt @@ -0,0 +1,42 @@ +Holtek ht16k33 RAM mapping 16*8 LED controller driver with keyscan +------------------------------------------------------------------------------- + +Required properties: +- compatible: "holtek,ht16k33" +- reg: I2C slave address of the chip. +- interrupt-parent: A phandle pointing to the interrupt controller + serving the interrupt for this chip. +- interrupts: Interrupt specification for the key pressed interrupt. +- refresh-rate-hz: Display update interval in HZ. +- debounce-delay-ms: Debouncing interval time in milliseconds. +- linux,keymap: The keymap for keys as described in the binding + document (devicetree/bindings/input/matrix-keymap.txt). + +Optional properties: +- linux,no-autorepeat: Disable keyrepeat. +- default-brightness-level: Initial brightness level [0-15] (default: 15). + +Example: + +&i2c1 { + ht16k33: ht16k33@70 { + compatible = "holtek,ht16k33"; + reg = <0x70>; + refresh-rate-hz = <20>; + debounce-delay-ms = <50>; + interrupt-parent = <&gpio4>; + interrupts = <5 (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING)>; + linux,keymap = < + MATRIX_KEY(2, 0, KEY_F6) + MATRIX_KEY(3, 0, KEY_F8) + MATRIX_KEY(4, 0, KEY_F10) + MATRIX_KEY(5, 0, KEY_F4) + MATRIX_KEY(6, 0, KEY_F2) + MATRIX_KEY(2, 1, KEY_F5) + MATRIX_KEY(3, 1, KEY_F7) + MATRIX_KEY(4, 1, KEY_F9) + MATRIX_KEY(5, 1, KEY_F3) + MATRIX_KEY(6, 1, KEY_F1) + >; + }; +}; diff --git a/Documentation/devicetree/bindings/fpga/fpga-region.txt b/Documentation/devicetree/bindings/fpga/fpga-region.txt new file mode 100644 index 000000000000..3b32ba15a717 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/fpga-region.txt @@ -0,0 +1,494 @@ +FPGA Region Device Tree Binding + +Alan Tull 2016 + + CONTENTS + - Introduction + - Terminology + - Sequence + - FPGA Region + - Supported Use Models + - Device Tree Examples + - Constraints + + +Introduction +============ + +FPGA Regions represent FPGA's and partial reconfiguration regions of FPGA's in +the Device Tree. FPGA Regions provide a way to program FPGAs under device tree +control. + +This device tree binding document hits some of the high points of FPGA usage and +attempts to include terminology used by both major FPGA manufacturers. This +document isn't a replacement for any manufacturers specifications for FPGA +usage. + + +Terminology +=========== + +Full Reconfiguration + * The entire FPGA is programmed. + +Partial Reconfiguration (PR) + * A section of an FPGA is reprogrammed while the rest of the FPGA is not + affected. + * Not all FPGA's support PR. + +Partial Reconfiguration Region (PRR) + * Also called a "reconfigurable partition" + * A PRR is a specific section of a FPGA reserved for reconfiguration. + * A base (or static) FPGA image may create a set of PRR's that later may + be independently reprogrammed many times. + * The size and specific location of each PRR is fixed. + * The connections at the edge of each PRR are fixed. The image that is loaded + into a PRR must fit and must use a subset of the region's connections. + * The busses within the FPGA are split such that each region gets its own + branch that may be gated independently. + +Persona + * Also called a "partial bit stream" + * An FPGA image that is designed to be loaded into a PRR. There may be + any number of personas designed to fit into a PRR, but only one at at time + may be loaded. + * A persona may create more regions. + +FPGA Bridge + * FPGA Bridges gate bus signals between a host and FPGA. + * FPGA Bridges should be disabled while the FPGA is being programmed to + prevent spurious signals on the cpu bus and to the soft logic. + * FPGA bridges may be actual hardware or soft logic on an FPGA. + * During Full Reconfiguration, hardware bridges between the host and FPGA + will be disabled. + * During Partial Reconfiguration of a specific region, that region's bridge + will be used to gate the busses. Traffic to other regions is not affected. + * In some implementations, the FPGA Manager transparantly handles gating the + buses, eliminating the need to show the hardware FPGA bridges in the + device tree. + * An FPGA image may create a set of reprogrammable regions, each having its + own bridge and its own split of the busses in the FPGA. + +FPGA Manager + * An FPGA Manager is a hardware block that programs an FPGA under the control + of a host processor. + +Base Image + * Also called the "static image" + * An FPGA image that is designed to do full reconfiguration of the FPGA. + * A base image may set up a set of partial reconfiguration regions that may + later be reprogrammed. + + ---------------- ---------------------------------- + | Host CPU | | FPGA | + | | | | + | ----| | ----------- -------- | + | | H | | |==>| Bridge0 |<==>| PRR0 | | + | | W | | | ----------- -------- | + | | | | | | + | | B |<=====>|<==| ----------- -------- | + | | R | | |==>| Bridge1 |<==>| PRR1 | | + | | I | | | ----------- -------- | + | | D | | | | + | | G | | | ----------- -------- | + | | E | | |==>| Bridge2 |<==>| PRR2 | | + | ----| | ----------- -------- | + | | | | + ---------------- ---------------------------------- + +Figure 1: An FPGA set up with a base image that created three regions. Each +region (PRR0-2) gets its own split of the busses that is independently gated by +a soft logic bridge (Bridge0-2) in the FPGA. The contents of each PRR can be +reprogramm |
