diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-26 19:16:01 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-26 19:16:01 -0700 |
commit | 1cd04d293c818687795b83cd8f2626bd4662feeb (patch) | |
tree | dcbaadd82c02204114b99c418bfae1ee57b2c4ca | |
parent | 9c1958fc326a0a0a533ec8e86ea6fa30977207de (diff) | |
parent | 224f9e6d538c4cfb2fa8dc4206fceb9431271388 (diff) |
Merge tag 'gpio-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.8 kernel cycle. The big
news is the completion of the chardev ABI which I'm very happy about
and apart from that it's an ordinary, quite busy cycle. The details
are below.
The patches are tested in linux-next for some time, patches to other
subsystem mostly have ACKs.
I got overly ambitious with configureing lines as input for IRQ lines
but it turns out that some controllers have their interrupt-enable and
input-enabling in orthogonal settings so the assumption that all IRQ
lines are input lines does not hold. Oh well, revert and back to the
drawing board with that.
Core changes:
- The big item is of course the completion of the character device
ABI. It has now replaced and surpassed the former unmaintainable
sysfs ABI: we can now hammer (bitbang) individual lines or sets of
lines and read individual lines or sets of lines from userspace,
and we can also register to listen to GPIO events from userspace.
As a tie-in we have two new tools in tools/gpio: gpio-hammer and
gpio-event-mon that illustrate the proper use of the new ABI. As
someone said: the wild west days of GPIO are now over.
- Continued to remove the pointless ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
Kconfig symbols. I'm patching hexagon, openrisc, powerpc, sh,
unicore, ia64 and microblaze. These are either ACKed by their
maintainers or patched anyways after a grace period and no response
from maintainers.
Some archs (ARM) come in from their trees, and others (x86) are
still not fixed, so I might send a second pull request to root it
out later in this merge window, or just defer to v4.9.
- The GPIO tools are moved to the tools build system.
New drivers:
- New driver for the MAX77620/MAX20024.
- New driver for the Intel Merrifield.
- Enabled PCA953x for the TI PCA9536.
- Enabled PCA953x for the Intel Edison.
- Enabled R8A7792 in the RCAR driver.
Driver improvements:
- The STMPE and F7188x now supports the .get_direction() callback.
- The Xilinx driver supports setting multiple lines at once.
- ACPI support for the Vulcan GPIO controller.
- The MMIO GPIO driver supports device tree probing.
- The Acer One 10 is supported through the _DEP ACPI attribute.
Cleanups:
- A major cleanup of the OF/DT support code. It is way easier to
read and understand now, probably this improves performance too.
- Drop a few redundant .owner assignments.
- Remove CLPS711x boardfile support: we are 100% DT"
* tag 'gpio-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (67 commits)
MAINTAINERS: Add INTEL MERRIFIELD GPIO entry
gpio: dwapb: add missing fwnode_handle_put() in dwapb_gpio_get_pdata()
gpio: merrifield: Protect irq_ack() and gpio_set() by lock
gpio: merrifield: Introduce GPIO driver to support Merrifield
gpio: intel-mid: Make it depend to X86_INTEL_MID
gpio: intel-mid: Sort header block alphabetically
gpio: intel-mid: Remove potentially harmful code
gpio: rcar: add R8A7792 support
gpiolib: remove duplicated include from gpiolib.c
Revert "gpio: convince line to become input in irq helper"
gpiolib: of_find_gpio(): Don't discard errors
gpio: of: Allow overriding the device node
gpio: free handles in fringe cases
gpio: tps65218: Add platform_device_id table
gpio: max77620: get gpio value based on direction
gpio: lynxpoint: avoid potential warning on error path
tools/gpio: add install section
tools/gpio: move to tools buildsystem
gpio: intel-mid: switch to devm_gpiochip_add_data()
gpio: 74x164: Use spi_write() helper instead of open coding
...
66 files changed, 2207 insertions, 230 deletions
diff --git a/Documentation/devicetree/bindings/gpio/cirrus,clps711x-mctrl-gpio.txt b/Documentation/devicetree/bindings/gpio/cirrus,clps711x-mctrl-gpio.txt index 94ae9f82dcf8..fd42e7280f72 100644 --- a/Documentation/devicetree/bindings/gpio/cirrus,clps711x-mctrl-gpio.txt +++ b/Documentation/devicetree/bindings/gpio/cirrus,clps711x-mctrl-gpio.txt @@ -1,7 +1,7 @@ * ARM Cirrus Logic CLPS711X SYSFLG1 MCTRL GPIOs Required properties: -- compatible: Should contain "cirrus,clps711x-mctrl-gpio". +- compatible: Should contain "cirrus,ep7209-mctrl-gpio". - gpio-controller: Marks the device node as a gpio controller. - #gpio-cells: Should be two. The first cell is the pin number and the second cell is used to specify the gpio polarity: @@ -11,7 +11,7 @@ Required properties: Example: sysgpio: sysgpio { compatible = "cirrus,ep7312-mctrl-gpio", - "cirrus,clps711x-mctrl-gpio"; + "cirrus,ep7209-mctrl-gpio"; gpio-controller; #gpio-cells = <2>; }; diff --git a/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt b/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt index e0d0446a6b78..0a304ad29d81 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt @@ -1,7 +1,7 @@ Cirrus Logic CLPS711X GPIO controller Required properties: -- compatible: Should be "cirrus,clps711x-gpio" +- compatible: Should be "cirrus,ep7209-gpio" - reg: Physical base GPIO controller registers location and length. There should be two registers, first is DATA register, the second is DIRECTION. @@ -21,7 +21,7 @@ aliases { }; porta: gpio@80000000 { - compatible = "cirrus,clps711x-gpio"; + compatible = "cirrus,ep7312-gpio","cirrus,ep7209-gpio"; reg = <0x80000000 0x1>, <0x80000040 0x1>; gpio-controller; #gpio-cells = <2>; diff --git a/Documentation/devicetree/bindings/gpio/gpio-max77620.txt b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt new file mode 100644 index 000000000000..410e716fd3d2 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-max77620.txt @@ -0,0 +1,25 @@ +GPIO driver for MAX77620 Power management IC from Maxim Semiconductor. + +Device has 8 GPIO pins which can be configured as GPIO as well as the +special IO functions. + +Required properties: +------------------- +- gpio-controller : Marks the device node as a gpio controller. +- #gpio-cells : Should be two. The first cell is the pin number and + the second cell is used to specify the gpio polarity: + 0 = active high + 1 = active low +For more details, please refer generic GPIO DT binding document +<devicetree/bindings/gpio/gpio.txt>. + +Example: +-------- +#include <dt-bindings/mfd/max77620.h> +... +max77620@3c { + compatible = "maxim,max77620"; + + gpio-controller; + #gpio-cells = <2>; +}; diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt index 6b4a98f74be3..08dd15f89ba9 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt @@ -21,6 +21,7 @@ Required properties: maxim,max7313 maxim,max7315 ti,pca6107 + ti,pca9536 ti,tca6408 ti,tca6416 ti,tca6424 diff --git a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt index f60e2f477e93..8da26b35b5c3 100644 --- a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt +++ b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt @@ -7,6 +7,7 @@ Required Properties: - "renesas,gpio-r8a7779": for R8A7779 (R-Car H1) compatible GPIO controller. - "renesas,gpio-r8a7790": for R8A7790 (R-Car H2) compatible GPIO controller. - "renesas,gpio-r8a7791": for R8A7791 (R-Car M2-W) compatible GPIO controller. + - "renesas,gpio-r8a7792": for R8A7792 (R-Car V2H) compatible GPIO controller. - "renesas,gpio-r8a7793": for R8A7793 (R-Car M2-N) compatible GPIO controller. - "renesas,gpio-r8a7794": for R8A7794 (R-Car E2) compatible GPIO controller. - "renesas,gpio-r8a7795": for R8A7795 (R-Car H3) compatible GPIO controller. diff --git a/Documentation/gpio/drivers-on-gpio.txt b/Documentation/gpio/drivers-on-gpio.txt index 14bf95a13bae..306513251713 100644 --- a/Documentation/gpio/drivers-on-gpio.txt +++ b/Documentation/gpio/drivers-on-gpio.txt @@ -37,15 +37,16 @@ hardware descriptions such as device tree or ACPI: external connector status, such as a headset line for an audio driver or an HDMI connector. It will provide a better userspace sysfs interface than GPIO. -- restart-gpio: drivers/power/gpio-restart.c is used to restart/reboot the - system by pulling a GPIO line and will register a restart handler so +- restart-gpio: drivers/power/reset/gpio-restart.c is used to restart/reboot + the system by pulling a GPIO line and will register a restart handler so userspace can issue the right system call to restart the system. -- poweroff-gpio: drivers/power/gpio-poweroff.c is used to power the system down - by pulling a GPIO line and will register a pm_power_off() callback so that - userspace can issue the right system call to power down the system. +- poweroff-gpio: drivers/power/reset/gpio-poweroff.c is used to power the + system down by pulling a GPIO line and will register a pm_power_off() + callback so that userspace can issue the right system call to power down the + system. -- gpio-gate-clock: drivers/clk/clk-gpio-gate.c is used to control a gated clock +- gpio-gate-clock: drivers/clk/clk-gpio.c is used to control a gated clock (off/on) that uses a GPIO, and integrated with the clock subsystem. - i2c-gpio: drivers/i2c/busses/i2c-gpio.c is used to drive an I2C bus diff --git a/MAINTAINERS b/MAINTAINERS index 0a3827b722b0..f4698b1cf847 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6060,6 +6060,12 @@ L: linux-rdma@vger.kernel.org S: Supported F: drivers/infiniband/hw/i40iw/ +INTEL MERRIFIELD GPIO DRIVER +M: Andy Shevchenko <andriy.shevchenko@linux.intel.com> +L: linux-gpio@vger.kernel.org +S: Maintained +F: drivers/gpio/gpio-merrifield.c + INTEL-MID GPIO DRIVER M: David Cohen <david.a.cohen@linux.intel.com> L: linux-gpio@vger.kernel.org diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 57298e7b4867..1941e4baaee6 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -8,8 +8,7 @@ config HEXAGON # select HAVE_REGS_AND_STACK_ACCESS_API # select HAVE_HW_BREAKPOINT if PERF_EVENTS # select ARCH_HAS_CPU_IDLE_WAIT - # select ARCH_WANT_OPTIONAL_GPIOLIB - # select ARCH_REQUIRE_GPIOLIB + # select GPIOLIB # select HAVE_CLK # select GENERIC_PENDING_IRQ if SMP select GENERIC_ATOMIC64 diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index e109ee95e919..6a15083cc366 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -39,7 +39,6 @@ config IA64 select GENERIC_PENDING_IRQ if SMP select GENERIC_IRQ_SHOW select GENERIC_IRQ_LEGACY - select ARCH_WANT_OPTIONAL_GPIOLIB select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_IOMAP select GENERIC_SMP_IDLE_THREAD diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 636e0720fb20..86f65721e629 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -3,7 +3,6 @@ config MICROBLAZE select ARCH_HAS_GCOV_PROFILE_ALL select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_WANT_IPC_PARSE_VERSION - select ARCH_WANT_OPTIONAL_GPIOLIB select BUILDTIME_EXTABLE_SORT select CLKSRC_OF select CLONE_BACKWARDS3 diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index 142cb057c41b..489e7f909286 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -10,7 +10,7 @@ config OPENRISC select IRQ_DOMAIN select HANDLE_DOMAIN_IRQ select HAVE_MEMBLOCK - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB select HAVE_ARCH_TRACEHOOK select GENERIC_IRQ_CHIP select GENERIC_IRQ_PROBE diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 0a9d439bcda6..d111044f41a2 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -98,7 +98,6 @@ config PPC select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_GRAPH_TRACER select SYSCTL_EXCEPTION_TRACE - select ARCH_WANT_OPTIONAL_GPIOLIB select VIRT_TO_BUS if !PPC64 select HAVE_IDE select HAVE_IOREMAP_PROT diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig index 6e287f1294fa..e3257f24a8a1 100644 --- a/arch/powerpc/platforms/40x/Kconfig +++ b/arch/powerpc/platforms/40x/Kconfig @@ -137,7 +137,7 @@ config STB03xxx config PPC4xx_GPIO bool "PPC4xx GPIO support" depends on 40x - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB help Enable gpiolib support for ppc40x based boards diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig index 5538e57c36c1..48fc18041ff6 100644 --- a/arch/powerpc/platforms/44x/Kconfig +++ b/arch/powerpc/platforms/44x/Kconfig @@ -273,7 +273,7 @@ config PPC44x_SIMPLE config PPC4xx_GPIO bool "PPC4xx GPIO support" depends on 44x - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB help Enable gpiolib support for ppc440 based boards diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig index f09016f6b3a6..bf7ae5cbd07a 100644 --- a/arch/powerpc/platforms/512x/Kconfig +++ b/arch/powerpc/platforms/512x/Kconfig @@ -6,7 +6,6 @@ config PPC_MPC512x select IPIC select PPC_PCI_CHOICE select FSL_PCI if PCI - select ARCH_WANT_OPTIONAL_GPIOLIB select USB_EHCI_BIG_ENDIAN_MMIO if USB_EHCI_HCD select USB_EHCI_BIG_ENDIAN_DESC if USB_EHCI_HCD diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig index 2bdc8c862c46..4ef7f1cd05b7 100644 --- a/arch/powerpc/platforms/83xx/Kconfig +++ b/arch/powerpc/platforms/83xx/Kconfig @@ -116,7 +116,6 @@ endif # used for usb & gpio config PPC_MPC831x bool - select ARCH_WANT_OPTIONAL_GPIOLIB # used for math-emu config PPC_MPC832x @@ -125,9 +124,7 @@ config PPC_MPC832x # used for usb & gpio config PPC_MPC834x bool - select ARCH_WANT_OPTIONAL_GPIOLIB # used for usb & gpio config PPC_MPC837x bool - select ARCH_WANT_OPTIONAL_GPIOLIB diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index e626461a63bd..df25a3ed489d 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -225,7 +225,7 @@ config GE_IMP3A select DEFAULT_UIMAGE select SWIOTLB select MMIO_NVRAM - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB select GE_FPGA help This option enables support for the GE Intelligent Platforms IMP3A @@ -272,7 +272,7 @@ config CORENET_GENERIC select PPC_E500MC select PHYS_64BIT select SWIOTLB - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB select GPIO_MPC8XXX select HAS_RAPIDIO select PPC_EPAPR_HV_PIC diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig index 1afd1e4a2dd2..3988f16e46c1 100644 --- a/arch/powerpc/platforms/86xx/Kconfig +++ b/arch/powerpc/platforms/86xx/Kconfig @@ -4,7 +4,6 @@ menuconfig PPC_86xx depends on 6xx select FSL_SOC select ALTIVEC - select ARCH_WANT_OPTIONAL_GPIOLIB help The Freescale E600 SoCs have 74xx cores. @@ -37,7 +36,7 @@ config GEF_PPC9A bool "GE PPC9A" select DEFAULT_UIMAGE select MMIO_NVRAM - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB select GE_FPGA help This option enables support for the GE PPC9A. @@ -46,7 +45,7 @@ config GEF_SBC310 bool "GE SBC310" select DEFAULT_UIMAGE select MMIO_NVRAM - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB select GE_FPGA help This option enables support for the GE SBC310. @@ -55,7 +54,7 @@ config GEF_SBC610 bool "GE SBC610" select DEFAULT_UIMAGE select MMIO_NVRAM - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB select GE_FPGA select HAS_RAPIDIO help diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig index 157250426b56..564d99bb2a26 100644 --- a/arch/powerpc/platforms/8xx/Kconfig +++ b/arch/powerpc/platforms/8xx/Kconfig @@ -109,7 +109,7 @@ config 8xx_COPYBACK config 8xx_GPIO bool "GPIO API Support" - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB help Saying Y here will cause the ports on an MPC8xx processor to be used with the GPIO API. If you say N here, the kernel needs less memory. diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index 46a3533d3acb..3663f71fd913 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -275,7 +275,7 @@ config TAU_AVERAGE config QE_GPIO bool "QE GPIO support" depends on QUICC_ENGINE - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB help Say Y here if you're going to use hardware that connects to the QE GPIOs. @@ -285,7 +285,7 @@ config CPM2 depends on (FSL_SOC_BOOKE && PPC32) || 8260 select CPM select PPC_PCI_CHOICE - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB help The CPM2 (Communications Processor Module) is a coprocessor on embedded CPUs made by Freescale. Selecting this option means that @@ -324,7 +324,7 @@ config OF_RTC config SIMPLE_GPIO bool "Support for simple, memory-mapped GPIO controllers" depends on PPC - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB help Say Y here to support simple, memory-mapped GPIO controllers. These are usually BCSRs used to control board's switches, LEDs, @@ -334,7 +334,7 @@ config SIMPLE_GPIO config MCU_MPC8349EMITX bool "MPC8349E-mITX MCU driver" depends on I2C=y && PPC_83xx - select ARCH_REQUIRE_GPIOLIB + select GPIOLIB help Say Y here to enable soft power-off functionality on the Freescale boards with the MPC8349E-mITX-compatible MCU chips. This driver will diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index e803a836cb7c..0d5f3a9bb315 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -264,7 +264,6 @@ config CPU_SUBTYPE_SH7203 select CPU_HAS_FPU select SYS_SUPPORTS_SH_CMT select SYS_SUPPORTS_SH_MTU2 - select ARCH_WANT_OPTIONAL_GPIOLIB select PINCTRL config CPU_SUBTYPE_SH7206 @@ -353,7 +352,6 @@ config CPU_SUBTYPE_SH7720 select CPU_SH3 select CPU_HAS_DSP select SYS_SUPPORTS_SH_CMT - select ARCH_WANT_OPTIONAL_GPIOLIB select USB_OHCI_SH if USB_OHCI_HCD select PINCTRL help @@ -419,7 +417,6 @@ config CPU_SUBTYPE_SH7723 select ARCH_SHMOBILE select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_SH_CMT - select ARCH_WANT_OPTIONAL_GPIOLIB select PINCTRL help Select SH7723 if you have an SH-MobileR2 CPU. @@ -431,7 +428,6 @@ config CPU_SUBTYPE_SH7724 select ARCH_SHMOBILE select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_SH_CMT - select ARCH_WANT_OPTIONAL_GPIOLIB select PINCTRL help Select SH7724 if you have an SH-MobileR2R CPU. @@ -440,7 +436,6 @@ config CPU_SUBTYPE_SH7734 bool "Support SH7734 processor" select CPU_SH4A select CPU_SHX2 - select ARCH_WANT_OPTIONAL_GPIOLIB select PINCTRL help Select SH7734 if you have a SH4A SH7734 CPU. @@ -449,7 +444,6 @@ config CPU_SUBTYPE_SH7757 bool "Support SH7757 processor" select CPU_SH4A select CPU_SHX2 - select ARCH_WANT_OPTIONAL_GPIOLIB select PINCTRL help Select SH7757 if you have a SH4A SH7757 CPU. @@ -475,7 +469,6 @@ config CPU_SUBTYPE_SH7785 select CPU_SHX2 select ARCH_SPARSEMEM_ENABLE select SYS_SUPPORTS_NUMA - select ARCH_WANT_OPTIONAL_GPIOLIB select PINCTRL config CPU_SUBTYPE_SH7786 @@ -484,7 +477,6 @@ config CPU_SUBTYPE_SH7786 select CPU_SHX3 select CPU_HAS_PTEAEX select GENERIC |