linux/drivers/mfd, branch v3.18

mfd: twl4030-power: Fix poweroff with PM configuration enabled

2014-11-10T15:22:04Z

Commit e7cd1d1eb16f ("mfd: twl4030-power: Add generic reset configuration") enabled configuring the PM features for twl4030. This caused poweroff command to fail on devices that have the BCI charger on twl4030 wired, or have power wired for VBUS. Instead of powering off, the device reboots. This is because voltage is detected on charger or VBUS with the default bits enabled for the power transition registers. To fix the issue, let's just clear VBUS and CHG bits as we want poweroff command to keep the system powered off. Fixes: e7cd1d1eb16f ("mfd: twl4030-power: Add generic reset configuration") Cc: stable@vger.kernel.org # v3.16+ Reported-by: Russell King Signed-off-by: Tony Lindgren Signed-off-by: Lee Jones

mfd: max77693: Fix always masked MUIC interrupts

2014-11-10T15:22:02Z

All interrupts coming from MUIC were ignored because interrupt source register was masked. The Maxim 77693 has a "interrupt source" - a separate register and interrupts which give information about PMIC block triggering the individual interrupt (charger, topsys, MUIC, flash LED). By default bootloader could initialize this register to "mask all" value. In such case (observed on Trats2 board) MUIC interrupts won't be generated regardless of their mask status. Regmap irq chip was unmasking individual MUIC interrupts but the source was masked Before introducing regmap irq chip this interrupt source was unmasked, read and acked. Reading and acking is not necessary but unmasking is. Fixes: 342d669c1ee4 ("mfd: max77693: Handle IRQs using regmap") Cc: Signed-off-by: Krzysztof Kozlowski Reviewed-by: Chanwoo Choi Signed-off-by: Lee Jones

mfd: max77693: Use proper regmap for handling MUIC interrupts

2014-11-10T15:22:01Z

Interrupts coming from Maxim77693 MUIC block (MicroUSB Interface Controller) were not handled at all because wrong regmap was used for MUIC's regmap_irq_chip. The MUIC component of Maxim 77693 uses different I2C address thus second regmap is created and used by max77693 extcon driver. The registers for MUIC interrupts are also in that block and should be handled by that second regmap. However the regmap irq chip for MUIC was configured with default regmap which could not read MUIC registers. Fixes: 342d669c1ee4 ("mfd: max77693: Handle IRQs using regmap") Cc: Signed-off-by: Krzysztof Kozlowski Reviewed-by: Chanwoo Choi Signed-off-by: Lee Jones

mfd: viperboard: Fix platform-device id collision

2014-11-10T15:22:00Z

Allow more than one viperboard to be connected by registering with PLATFORM_DEVID_AUTO instead of PLATFORM_DEVID_NONE. The subdevices are currently registered with PLATFORM_DEVID_NONE, which will cause a name collision on the platform bus when a second viperboard is plugged in: viperboard 1-2.4:1.0: version 0.00 found at bus 001 address 004 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 181 at /home/johan/work/omicron/src/linux/fs/sysfs/dir.c:31 sysfs_warn_dup+0x74/0x84() sysfs: cannot create duplicate filename '/bus/platform/devices/viperboard-gpio' Modules linked in: i2c_viperboard viperboard netconsole [last unloaded: viperboard] CPU: 0 PID: 181 Comm: bash Tainted: G W 3.17.0-rc6 #1 [] (unwind_backtrace) from [] (show_stack+0x20/0x24) [] (show_stack) from [] (dump_stack+0x24/0x28) [] (dump_stack) from [] (warn_slowpath_common+0x80/0x98) [] (warn_slowpath_common) from [] (warn_slowpath_fmt+0x40/0x48) [] (warn_slowpath_fmt) from [] (sysfs_warn_dup+0x74/0x84) [] (sysfs_warn_dup) from [] (sysfs_do_create_link_sd.isra.2+0xcc/0xd0) [] (sysfs_do_create_link_sd.isra.2) from [] (sysfs_create_link+0x3c/0x48) [] (sysfs_create_link) from [] (bus_add_device+0x12c/0x1e0) [] (bus_add_device) from [] (device_add+0x410/0x584) [] (device_add) from [] (platform_device_add+0xd8/0x26c) [] (platform_device_add) from [] (mfd_add_device+0x240/0x344) [] (mfd_add_device) from [] (mfd_add_devices+0xb8/0x110) [] (mfd_add_devices) from [] (vprbrd_probe+0x160/0x1b0 [viperboard]) [] (vprbrd_probe [viperboard]) from [] (usb_probe_interface+0x1bc/0x2a8) [] (usb_probe_interface) from [] (driver_probe_device+0x14c/0x3ac) [] (driver_probe_device) from [] (__driver_attach+0xa4/0xa8) [] (__driver_attach) from [] (bus_for_each_dev+0x70/0xa4) [] (bus_for_each_dev) from [] (driver_attach+0x2c/0x30) [] (driver_attach) from [] (usb_store_new_id+0x170/0x1ac) [] (usb_store_new_id) from [] (new_id_store+0x34/0x3c) [] (new_id_store) from [] (drv_attr_store+0x30/0x3c) [] (drv_attr_store) from [] (sysfs_kf_write+0x5c/0x60) [] (sysfs_kf_write) from [] (kernfs_fop_write+0xd4/0x194) [] (kernfs_fop_write) from [] (vfs_write+0xb4/0x1c0) [] (vfs_write) from [] (SyS_write+0x4c/0xa0) [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) ---[ end trace 98e8603c22d65817 ]--- viperboard 1-2.4:1.0: Failed to add mfd devices to core. viperboard: probe of 1-2.4:1.0 failed with error -17 Signed-off-by: Johan Hovold Signed-off-by: Lee Jones

mfd: rtsx: Fix build warnings for !PM

2014-11-10T15:21:59Z

rtsx_pci_power_off() is called only from rtsx_pci_suspend(), which isn't built when PM is disabled. Signed-off-by: Thierry Reding Signed-off-by: Lee Jones

mfd: stmpe: Fix STMPE24xx GPMR LSB

2014-11-10T15:21:58Z

The least significat byte of the GPIO value read register on the STMPE24xx series is on addres 0xA4 not 0xA5. Correct against datasheet and tested on the STMPE2401 hardware. Signed-off-by: Linus Walleij Signed-off-by: Lee Jones

Merge tag 'mfd-for-linus-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

2014-10-15T04:58:16Z

Pull MFD updates from Lee Jones: "Changes to existing drivers: - DT clean-ups in da9055-core, max14577, rn5t618, arizona, hi6421, stmpe, twl4030 - Export symbols for use in modules in max14577 - Plenty of static code analysis/Coccinelle fixes throughout the SS - Regmap clean-ups in arizona, wm5102, wm5110, da9052, tps65217, rk808 - Remove unused/duplicate code in da9052, 88pm860x, ti_ssp, lpc_sch, arizona - Bug fixes in ti_am335x_tscadc, da9052, ti_am335x_tscadc, rtsx_pcr - IRQ fixups in arizona, stmpe, max14577 - Regulator related changes in axp20x - Pass DMA coherency information from parent => child in MFD core - Rename DT document files for consistency - Add ACPI support to the MFD core - Add Andreas Werner to MAINTAINERS for MEN F21BMC New drivers/supported devices: - New driver for MEN 14F021P00 Board Management Controller - New driver for Ricoh RN5T618 PMIC - New driver for Rockchip RK808 - New driver for HiSilicon Hi6421 PMIC - New driver for Qualcomm SPMI PMICs - Add support for Intel Braswell in lpc_ich - Add support for Intel 9 Series PCH in lpc_ich - Add support for Intel Quark ILB in lpc_sch" [ Delayed to after the poweer/reset pull due to Kconfig problems with recursive Kconfig select/depends-on chains. - Linus ] * tag 'mfd-for-linus-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (79 commits) mfd: cros_ec: wait for completion of commands that return IN_PROGRESS i2c: i2c-cros-ec-tunnel: Set retries to 3 mfd: cros_ec: move locking into cros_ec_cmd_xfer mfd: cros_ec: stop calling ->cmd_xfer() directly mfd: cros_ec: Delay for 50ms when we see EC_CMD_REBOOT_EC MAINTAINERS: Adds Andreas Werner to maintainers list for MEN F21BMC mfd: arizona: Correct mask to allow setting micbias external cap mfd: Add ACPI support Revert "mfd: wm5102: Manually apply register patch" mfd: ti_am335x_tscadc: Update logic in CTRL register for 5-wire TS mfd: dt-bindings: atmel-gpbr: Rename doc file to conform to naming convention mfd: dt-bindings: qcom-pm8xxx: Rename doc file to conform to naming convention mfd: Inherit coherent_dma_mask from parent device mfd: Document DT bindings for Qualcomm SPMI PMICs mfd: Add support for Qualcomm SPMI PMICs mfd: dt-bindings: pm8xxx: Add new compatible string mfd: axp209x: Drop the parent supplies field mfd: twl4030-power: Use 'ti,system-power-controller' as alternative way to support system power off mfd: dt-bindings: twl4030-power: Use the standard property to mark power control mfd: syscon: Add Atmel GPBR DT bindings documention ...

Merge tag 'for-v3.18' of git://git.infradead.org/battery-2.6

2014-10-15T04:56:23Z

Pull power supply and reset updates from Sebastian Reichel: - Initial support for the following chips * max77836 (charger) * max14577 (charger) * bq27742 (battery gauge) * ltc2952 (poweroff) * stih416 (restart) * syscon-reboot (restart) * gpio-restart (restart) - cleanup of power supply core - misc fixes in power supply and reset drivers * tag 'for-v3.18' of git://git.infradead.org/battery-2.6: (48 commits) power: ab8500_fg: Fix build warning Documentation: charger: max14577: Update the date of introducing ABI power: reset: corrections for simple syscon reboot driver Documentation: power: reset: Add documentation for generic SYSCON reboot driver power: reset: Add generic SYSCON register mapped reset bq27x00_battery: Fix flag reading for bq27742 power: reset: use restart_notifier mechanism for msm-poweroff power: Add simple gpio-restart driver power: reset: st: Provide DT bindings for ST's Power Reset driver power: reset: Add restart functionality for STiH41x platforms power: charger-manager: Fix NULL pointer exception with missing cm-fuel-gauge power: max14577: Fix circular config SYSFS dependency power: gpio-charger: do not use gpio value directly power: max8925: Use of_get_child_by_name power: max8925: Fix NULL ptr dereference on memory allocation failure bq27x00_battery: Add support to bq27742 Documentation: charger: max14577: Document exported sysfs entry devicetree: mfd: max14577: Add device tree bindings document power: max17040: Add ID for MAX77836 Fuel Gauge block charger: max14577: Configure battery-dependent settings from DTS and sysfs ... Conflicts: drivers/power/reset/Kconfig drivers/power/reset/Makefile

Merge tag 'hwmon-for-linus-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

2014-10-10T20:40:14Z

Pull hwmon updates from Guenter Roeck: - new driver for menf21bmc. - convert k10temp, smsc47b397, da9052, da9055 to new hwmon API. - register ntc_thermistor driver with thermal subsystem. - add support for F15h M60h to k10temp driver. - add driver for MEN14F021P00 BMC HWMON driver; this required a merge with tag mfd-hwmon-leds-watchdog-v3.18 * tag 'hwmon-for-linus-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (ab8500) Call kernel_power_off instead of pm_power_off hwmon: (menf21bmc) Introduce MEN14F021P00 BMC HWMON driver leds: leds-menf21bmc: Introduce MEN 14F021P00 BMC LED driver watchdog: menf21bmc_wdt: Introduce MEN 14F021P00 BMC Watchdog driver mfd: menf21bmc: Introduce MEN 14F021P00 BMC MFD Core driver hwmon: (ntc_thermistor) Add ntc thermistor to thermal subsystem as a sensor. hwmon: (smsc47b397) Convert to devm_hwmon_device_register_with_groups MAINTAINERS: add entry for the PWM fan driver hwmon: (k10temp) Convert to devm_hwmon_device_register_with_groups hwmon: (k10temp) Add support for F15h M60h hwmon: (da9052) Convert to devm_hwmon_device_register_with_groups hwmon: (da9055) Convert to devm_hwmon_device_register_with_groups hwmon: (ads1015) Use of_property_read_u32 at appropriate places

Merge tag 'gpio-v3.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2014-10-09T18:58:15Z

Pull GPIO changes from Linus Walleij: "This is the bulk of GPIO changes for the v3.18 development cycle: - Increase the default ARCH_NR_GPIO from 256 to 512. This was done to avoid having a custom header for the x86 architecture - GPIO is custom and complicated enough as it is already! We want to move to a radix to store the descriptors going forward, and finally get rid of this fixed array size altogether. - Endgame patching of the gpio_remove() semantics initiated by Abdoulaye Berthe. It is not accepted by the system that the removal of a GPIO chip fails during eg reboot or shutdown, and therefore the return value has now painfully been refactored away. For special cases like GPIO expanders on a hot-pluggable bus like USB, we may later add some gpiochip_try_remove() call, but for the cases we have now, return values are moot. - Some incremental refactoring of the gpiolib core and ACPI GPIO library for more descriptor usage. - Refactor the chained IRQ handler set-up method to handle also threaded, nested interrupts and set up the parent IRQ correctly. Switch STMPE and TC3589x drivers to use this registration method. - Add a .irq_not_threaded flag to the struct gpio_chip, so that also GPIO expanders that block but are still not using threaded IRQ handlers. - New drivers for the ARM64 X-Gene SoC GPIO controller. - The syscon GPIO driver has been improved to handle the "DSP GPIO" found on the TI Keystone 2 SoC:s. - ADNP driver switched to use gpiolib irqchip helpers. - Refactor the DWAPB driver to support being instantiated from and MFD cell (platform device). - Incremental feature improvement in the Zynq, MCP23S08, DWAPB, OMAP, Xilinx and Crystalcove drivers. - Various minor fixes" * tag 'gpio-v3.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (52 commits) gpio: pch: Build context save/restore only for PM pinctrl: abx500: get rid of unused variable gpio: ks8695: fix 'else should follow close brace '}'' gpio: stmpe: add verbose debug code gpio: stmpe: fix up interrupt enable logic gpio: staticize xway_stp_init() gpio: handle also nested irqchips in the chained handler set-up gpio: set parent irq on chained handlers gpiolib: irqchip: use irq_find_mapping while removing irqchip gpio: crystalcove: support virtual GPIO pinctrl: bcm281xx: make Kconfig dependency more strict gpio: kona: enable only on BCM_MOBILE or for compile testing gpio, bcm-kona, LLVMLinux: Remove use of __initconst gpio: Fix ngpio in gpio-xilinx driver gpio: dwapb: fix pointer to integer cast gpio: xgene: Remove unneeded #ifdef CONFIG_OF guard gpio: xgene: Remove unneeded forward declation for struct xgene_gpio gpio: xgene: Fix missing spin_lock_init() gpio: ks8695: fix switch case indentation gpiolib: add irq_not_threaded flag to gpio_chip ...