user/sven/linux.git/include/linux/i2c.h, branch v4.14.15

i2c: rephrase explanation of I2C_CLASS_DEPRECATED

2017-07-31T15:33:53Z

Hopefully making clear that it is not needed for new drivers. Signed-off-by: Wolfram Sang

i2c: Provide a stub for i2c_detect_slave_mode()

2017-07-08T19:51:43Z

Drivers would like to call i2c_detect_slave_mode() even if !I2C_SLAVE. Give them what they want to, Otherwise kernel will not compile: drivers/i2c/busses/i2c-designware-platdrv.c: In function ‘dw_i2c_plat_probe’: drivers/i2c/busses/i2c-designware-platdrv.c:331:6: error: implicit declaration of function ‘i2c_detect_slave_mode’ [-Werror=implicit-function-declaration] if (i2c_detect_slave_mode(&pdev->dev)) ^~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors Fixes: 6e38cf3b4421 ("i2c: designware: Let slave adapter support be optional") Reported-by: Abdul Haleem Signed-off-by: Andy Shevchenko Signed-off-by: Wolfram Sang

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2017-05-03T19:38:20Z

Pull input subsystem updates from Dmitry Torokhov: - a big update from Mauro converting input documentation to ReST format - Synaptics PS/2 is now aware of SMBus companion devices, which means that we can now use native RMI4 protocol to handle touchpads, instead of relying on legacy PS/2 mode. - we removed support from BMA180 accelerometer from input devices as it is now handled properly by IIO - update to TSC2007 to corretcly report pressure - other miscellaneous driver fixes. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (152 commits) Input: ar1021_i2c - use BIT to check for a bit Input: twl4030-pwrbutton - use input_set_capability() helper Input: twl4030-pwrbutton - use correct device for irq request Input: ar1021_i2c - enable touch mode during open Input: add uinput documentation dt-bindings: input: add bindings document for ar1021_i2c driver dt-bindings: input: rotary-encoder: fix typo Input: xen-kbdfront - add module parameter for setting resolution ARM: pxa/raumfeld: fix compile error in rotary controller resources Input: xpad - do not suggest writing to Dominic Input: xpad - don't use literal blocks inside footnotes Input: xpad - note that usb/devices is now at /sys/kernel/debug/ Input: docs - freshen up introduction Input: docs - split input docs into kernel- and user-facing Input: docs - note that MT-A protocol is obsolete Input: docs - update joystick documentation a bit Input: docs - remove disclaimer/GPL notice Input: fix "Game console" heading level in joystick documentation Input: rotary-encoder - remove references to platform data from docs Input: move documentation for Amiga CD32 ...

i2c: core: Allow drivers to disable i2c-core irq mapping

2017-04-16T20:02:25Z

By default the i2c-core will try to get an irq with index 0 on ACPI / of instantiated devices. This is troublesome on some ACPI systems where the irq info at index 0 in the CRS table may contain nonsense and/or point to an irqchip for which there is no Linux driver. If this happens then before this commit the driver's probe method would never get called because i2c_device_probe will try to get an irq by calling acpi_dev_gpio_irq_get which will always return -EPROBE in this case, as it waits for a matching irqchip driver to load. Thus causing the driver to not get a chance to bind. This commit adds a new disable_i2c_core_irq_mapping flag to struct i2c_driver which a driver can set to tell the core to skip irq mapping. Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko Signed-off-by: Wolfram Sang

i2c: core: Add new i2c_acpi_new_device helper function

2017-04-16T20:02:02Z

By default the i2c subsys creates an i2c-client for the first I2cSerialBus resource of an acpi_device, but some acpi_devices have multiple I2cSerialBus resources and we may want to instantiate i2c-clients for the others. This commit adds a new i2c_acpi_new_device function which can be used to create an i2c-client for any I2cSerialBus resource of an acpi_device. Note that the other resources may even be on a different i2c bus, so just retrieving the client address is not enough. Here is an example DSDT excerpt from such a device: Device (WIDR) { Name (_HID, "INT33FE" /* XPOWER Battery Device */) Name (_CID, "INT33FE" /* XPOWER Battery Device */) Name (_DDN, "WC PMIC Battery Device") Name (RBUF, ResourceTemplate () { I2cSerialBusV2 (0x005E, ControllerInitiated, 0x000186A0, AddressingMode7Bit, "\\_SB.PCI0.I2C7", 0x00, ResourceConsumer, , Exclusive, ) I2cSerialBusV2 (0x0036, ControllerInitiated, 0x000186A0, AddressingMode7Bit, "\\_SB.PCI0.I2C1", 0x00, ResourceConsumer, , Exclusive, ) I2cSerialBusV2 (0x0022, ControllerInitiated, 0x00061A80, AddressingMode7Bit, "\\_SB.PCI0.I2C1", 0x00, ResourceConsumer, , Exclusive, ) I2cSerialBusV2 (0x0054, ControllerInitiated, 0x00061A80, AddressingMode7Bit, "\\_SB.PCI0.I2C1", 0x00, ResourceConsumer, , Exclusive, ) GpioInt (Level, ActiveLow, Exclusive, PullNone, 0x0000, "\\_SB.PCI0.I2C7.PMI5", 0x00, ResourceConsumer, , ) { // Pin list 0x0012 } GpioInt (Edge, ActiveLow, ExclusiveAndWake, PullNone, 0x0000, "\\_SB.GPO1", 0x00, ResourceConsumer, , ) { // Pin list 0x0005 } GpioInt (Level, ActiveLow, Exclusive, PullNone, 0x0000, "\\_SB.PCI0.I2C7.PMI5", 0x00, ResourceConsumer, , ) { // Pin list 0x0013 } }) Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings { Return (RBUF) /* \_SB_.PCI0.I2C7.WIDR.RBUF */ } } Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko Signed-off-by: Wolfram Sang

i2c: allow attaching IRQ resources to i2c_board_info

2017-04-01T16:36:19Z

Simple integer for interrupt number is not expressive enough, as it does not convey interrupt trigger type that should be used. Let's allow attaching array of resources to the board info and have i2c core parse first IRQ resource and set up interrupt trigger as needed. Reviewed-by: Wolfram Sang Signed-off-by: Dmitry Torokhov

i2c: export i2c_client_type structure

2017-04-01T16:35:08Z

i2c bus has 2 different types of device belonging to the same bus and bus notifiers use device type to distinguish between adapters and clients. Previously we only had i2c_adapter_type exported, which made code wanting to work with i2c_client devices test for type not equal to adapter type. This unfortunately is not safe if we ever add another type to the bus, so let's export i2c_client_type as well. Reviewed-by: Jean Delvare Acked-by: Benjamin Tissoires Reviewed-by: Wolfram Sang Signed-off-by: Dmitry Torokhov

sched/headers: Prepare for the removal of from

2017-03-02T07:42:32Z

Fix up missing #includes in other places that rely on sched.h doing that for them. Acked-by: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar

Merge branch 'i2c/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

2017-02-25T22:21:18Z

Pull i2c updates from Wolfram Sang: "I2C has for you two new drivers (Tegra BPMP and STM32F4), interrupt support for pca954x muxes, and a bunch of driver bugfixes and improvements. Nothing really special this cycle. A few commits have been added to my tree just recently. Those are the Tegra BPMP driver and a few straightforward bugfixes or cleanups which I prefer to have upstream rather soonish. The rest had proper linux-next exposure" * 'i2c/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (25 commits) i2c: thunderx: Replace pci_enable_msix() i2c: exynos5: fix arbitration lost handling i2c: exynos5: disable fifo-almost-empty irq signal when necessary i2c: at91: ensure state is restored after suspending i2c: bcm2835: Avoid possible NULL ptr dereference i2c: Add Tegra BPMP I2C proxy driver dt-bindings: Add Tegra186 BPMP I2C binding misc: eeprom: at24: use device_property_*() functions instead of of_get_property() i2c: mux: pca954x: Add interrupt controller support dt: bindings: i2c-mux-pca954x: Add documentation for interrupt controller i2c: mux: pca954x: Add missing pca9542 definition to chip_desc i2c: riic: correctly finish transfers i2c: i801: Add support for Intel Gemini Lake i2c: mux: pca9541: Export OF device ID table as module aliases i2c: mux: pca954x: Export OF device ID table as module aliases i2c: mux: mlxcpld: remove unused including i2c: busses: constify i2c_algorithm structures i2c: i2c-mux-gpio: rename i2c-gpio-mux to i2c-mux-gpio i2c: sh_mobile: document support for r8a7796 (R-Car M3-W) i2c: i2c-cros-ec-tunnel: Reduce logging noise ...

i2c: allow specify device properties in i2c_board_info

2017-02-08T12:34:41Z

With many drivers converting to using generic device properties, it is useful to provide array of device properties when instantiating new i2c client via i2c_board_info and have them automatically added to the device in question. Signed-off-by: Dmitry Torokhov Reviewed-by: Andy Shevchenko Acked-by: Wolfram Sang Signed-off-by: Rafael J. Wysocki