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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-05 12:01:30 +0900 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-05 12:01:30 +0900 |
commit | 578f1ef91aa92beb571bfb9af8f4d18f405f3b9e (patch) | |
tree | 8ff59e772d09180b7e7f952a8c90a1bcf25e1d19 /Documentation | |
parent | ecefbd94b834fa32559d854646d777c56749ef1c (diff) | |
parent | 74d8378159de16a0a1d1975d4778120d263d6000 (diff) | |
download | linux-rpi-578f1ef91aa92beb571bfb9af8f4d18f405f3b9e.tar.gz linux-rpi-578f1ef91aa92beb571bfb9af8f4d18f405f3b9e.tar.bz2 linux-rpi-578f1ef91aa92beb571bfb9af8f4d18f405f3b9e.zip |
Merge tag 'mfd-3.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Pull MFD changes from Samuel Ortiz:
"MFD bits for the 3.7 merge window.
As usual we have a few new drivers:
- TI LP8788
- TI OMAP USB TLL
- Maxim MAX8907
- SMSC ECE1099
- Dialog Semiconductor DA9055
- A simpler syscon driver that allow us to get rid of the anatop one.
Drivers are also gradually getting Device Tree and IRQ domain support.
The following drivers got DT support:
- palmas, 88pm860x, tc3589x and twl4030-audio
And those ones now use the IRQ domain APIs:
- 88pm860x, tc3589x, db8500_prcmu
Also some other interesting changes:
- Intel's ICH LPC now supports Lynx Point
- TI's twl4030-audio added a GPO child
- tps6527 enabled its backlight subdevice
- The twl6030 pwm driver moved to the new PWM subsystem
And finally a bunch of cleanup and casual fixes for mc13xxx, 88pm860x,
palmas, ab8500, wm8994, wm5110, max8907 and the tps65xxx family."
Fix up various annoying conflicts: the DT and IRQ domain support came in
twice and was already in 3.6. And then it was apparently rebased.
Guys, DON'T REBASE!
* tag 'mfd-3.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (89 commits)
ARM: dts: Enable 88pm860x pmic
mfd: 88pm860x: Move gpadc init into touch
mfd: 88pm860x: Device tree support
mfd: 88pm860x: Use irqdomain
mfd: smsc: Add support for smsc gpio io/keypad driver
backlight: tps65217_bl: Add missing platform_set_drvdata in tps65217_bl_probe
mfd: DA9055 core driver
mfd: tps65910: Add alarm interrupt of TPS65910 RTC to mfd device list
mfd: wm5110: Add register patches for revision B
mfd: wm5110: Disable control interface error report for WM5110 rev B
mfd: max8907: Remove regulator-compatible from DT docs
backlight: Add TPS65217 WLED driver
mfd: Add backlight as subdevice to the tps65217
mfd: Provide the PRCMU with its own IRQ domain
mfd: Fix max8907 sparse warning
mfd: Add lp8788 mfd driver
mfd: dbx500: Provide a more accurate smp_twd clock
mfd: rc5t583: Fix warning messages
regulator: palmas: Add DT support
mfd: palmas: Change regulator defns to better suite DT
...
Diffstat (limited to 'Documentation')
10 files changed, 337 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/mfd/88pm860x.txt b/Documentation/devicetree/bindings/mfd/88pm860x.txt new file mode 100644 index 000000000000..63f3ee33759c --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/88pm860x.txt @@ -0,0 +1,85 @@ +* Marvell 88PM860x Power Management IC + +Required parent device properties: +- compatible : "marvell,88pm860x" +- reg : the I2C slave address for the 88pm860x chip +- interrupts : IRQ line for the 88pm860x chip +- interrupt-controller: describes the 88pm860x as an interrupt controller (has its own domain) +- #interrupt-cells : should be 1. + - The cell is the 88pm860x local IRQ number + +Optional parent device properties: +- marvell,88pm860x-irq-read-clr: inicates whether interrupt status is cleared by read +- marvell,88pm860x-slave-addr: 88pm860x are two chips solution. <reg> stores the I2C address + of one chip, and this property stores the I2C address of + another chip. + +88pm860x consists of a large and varied group of sub-devices: + +Device Supply Names Description +------ ------------ ----------- +88pm860x-onkey : : On key +88pm860x-rtc : : RTC +88pm8607 : : Regulators +88pm860x-backlight : : Backlight +88pm860x-led : : Led +88pm860x-touch : : Touchscreen + +Example: + + pmic: 88pm860x@34 { + compatible = "marvell,88pm860x"; + reg = <0x34>; + interrupts = <4>; + interrupt-parent = <&intc>; + interrupt-controller; + #interrupt-cells = <1>; + + marvell,88pm860x-irq-read-clr; + marvell,88pm860x-slave-addr = <0x11>; + + regulators { + BUCK1 { + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1500000>; + regulator-boot-on; + regulator-always-on; + }; + LDO1 { + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <2800000>; + regulator-boot-on; + regulator-always-on; + }; + }; + rtc { + marvell,88pm860x-vrtc = <1>; + }; + touch { + marvell,88pm860x-gpadc-prebias = <1>; + marvell,88pm860x-gpadc-slot-cycle = <1>; + marvell,88pm860x-tsi-prebias = <6>; + marvell,88pm860x-pen-prebias = <16>; + marvell,88pm860x-pen-prechg = <2>; + marvell,88pm860x-resistor-X = <300>; + }; + backlights { + backlight-0 { + marvell,88pm860x-iset = <4>; + marvell,88pm860x-pwm = <3>; + }; + backlight-2 { + }; + }; + leds { + led0-red { + marvell,88pm860x-iset = <12>; + }; + led0-green { + marvell,88pm860x-iset = <12>; + }; + led0-blue { + marvell,88pm860x-iset = <12>; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/mfd/syscon.txt b/Documentation/devicetree/bindings/mfd/syscon.txt new file mode 100644 index 000000000000..fe8150bb3248 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/syscon.txt @@ -0,0 +1,20 @@ +* System Controller Registers R/W driver + +System controller node represents a register region containing a set +of miscellaneous registers. The registers are not cohesive enough to +represent as any specific type of device. The typical use-case is for +some other node's driver, or platform-specific code, to acquire a +reference to the syscon node (e.g. by phandle, node path, or search +using a specific compatible value), interrogate the node (or associated +OS driver) to determine the location of the registers, and access the +registers directly. + +Required properties: +- compatible: Should contain "syscon". +- reg: the register region can be accessed from syscon + +Examples: +gpr: iomuxc-gpr@020e0000 { + compatible = "fsl,imx6q-iomuxc-gpr", "syscon"; + reg = <0x020e0000 0x38>; +}; diff --git a/Documentation/devicetree/bindings/mfd/tps65910.txt b/Documentation/devicetree/bindings/mfd/tps65910.txt index db03599ae4dc..2e3304888ffc 100644 --- a/Documentation/devicetree/bindings/mfd/tps65910.txt +++ b/Documentation/devicetree/bindings/mfd/tps65910.txt @@ -59,6 +59,8 @@ Optional properties: in TPS6591X datasheet) - ti,en-gpio-sleep: enable sleep control for gpios There should be 9 entries here, one for each gpio. +- ti,system-power-controller: Telling whether or not this pmic is controlling + the system power. Regulator Optional properties: - ti,regulator-ext-sleep-control: enable external sleep @@ -79,6 +81,8 @@ Example: #interrupt-cells = <2>; interrupt-controller; + ti,system-power-controller; + ti,vmbch-threshold = 0; ti,vmbch2-threshold = 0; ti,en-ck32k-xtal; diff --git a/Documentation/devicetree/bindings/mfd/twl4030-audio.txt b/Documentation/devicetree/bindings/mfd/twl4030-audio.txt new file mode 100644 index 000000000000..414d2ae0adf6 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/twl4030-audio.txt @@ -0,0 +1,46 @@ +Texas Instruments TWL family (twl4030) audio module + +The audio module inside the TWL family consist of an audio codec and a vibra +driver. + +Required properties: +- compatible : must be "ti,twl4030-audio" + +Optional properties, nodes: + +Audio functionality: +- codec { }: Need to be present if the audio functionality is used. Within this + section the following options can be used: +- ti,digimic_delay: Delay need after enabling the digimic to reduce artifacts + from the start of the recorded sample (in ms) +-ti,ramp_delay_value: HS ramp delay configuration to reduce pop noise +-ti,hs_extmute: Use external mute for HS pop reduction +-ti,hs_extmute_gpio: Use external GPIO to control the external mute +-ti,offset_cncl_path: Offset cancellation path selection, refer to TRM for the + valid values. + +Vibra functionality +- ti,enable-vibra: Need to be set to <1> if the vibra functionality is used. if + missing or it is 0, the vibra functionality is disabled. + +Example: +&i2c1 { + clock-frequency = <2600000>; + + twl: twl@48 { + reg = <0x48>; + interrupts = <7>; /* SYS_NIRQ cascaded to intc */ + interrupt-parent = <&intc>; + + twl_audio: audio { + compatible = "ti,twl4030-audio"; + + ti,enable-vibra = <1>; + + codec { + ti,ramp_delay_value = <3>; + }; + + }; + }; +}; diff --git a/Documentation/devicetree/bindings/mfd/twl6040.txt b/Documentation/devicetree/bindings/mfd/twl6040.txt index c855240f3a0e..0f5dd709d752 100644 --- a/Documentation/devicetree/bindings/mfd/twl6040.txt +++ b/Documentation/devicetree/bindings/mfd/twl6040.txt @@ -1,7 +1,7 @@ Texas Instruments TWL6040 family -The TWL6040s are 8-channel high quality low-power audio codecs providing audio -and vibra functionality on OMAP4+ platforms. +The TWL6040s are 8-channel high quality low-power audio codecs providing audio, +vibra and GPO functionality on OMAP4+ platforms. They are connected ot the host processor via i2c for commands, McPDM for audio data and commands. @@ -10,6 +10,8 @@ Required properties: - reg: must be 0x4b for i2c address - interrupts: twl6040 has one interrupt line connecteded to the main SoC - interrupt-parent: The parent interrupt controller +- gpio-controller: +- #gpio-cells = <1>: twl6040 provides GPO lines. - twl6040,audpwron-gpio: Power on GPIO line for the twl6040 - vio-supply: Regulator for the twl6040 VIO supply @@ -37,7 +39,6 @@ Example: &i2c1 { twl6040: twl@4b { compatible = "ti,twl6040"; - reg = <0x4b>; interrupts = <0 119 4>; interrupt-parent = <&gic>; @@ -60,3 +61,5 @@ Example: }; }; }; + +/include/ "twl6040.dtsi" diff --git a/Documentation/devicetree/bindings/regulator/88pm860x.txt b/Documentation/devicetree/bindings/regulator/88pm860x.txt new file mode 100644 index 000000000000..1267b3e1a2cc --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/88pm860x.txt @@ -0,0 +1,30 @@ +Marvell 88PM860x regulator + +Required properties: +- compatible: "marvell,88pm860x" +- reg: I2C slave address +- regulators: A node that houses a sub-node for each regulator within the + device. Each sub-node is identified using the regulator-compatible + property, with valid values listed below. + +Example: + + pmic: 88pm860x@34 { + compatible = "marvell,88pm860x"; + reg = <0x34>; + + regulators { + BUCK1 { + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1500000>; + regulator-boot-on; + regulator-always-on; + }; + BUCK3 { + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <3000000>; + regulator-boot-on; + regulator-always-on; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/regulator/max8907.txt b/Documentation/devicetree/bindings/regulator/max8907.txt new file mode 100644 index 000000000000..371eccd1cd68 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/max8907.txt @@ -0,0 +1,69 @@ +MAX8907 regulator + +Required properties: +- compatible: "maxim,max8907" +- reg: I2C slave address +- interrupts: The interrupt output of the controller +- mbatt-supply: The input supply for MBATT, BBAT, SDBY, VRTC. +- in-v1-supply: The input supply for SD1. +- in-v2-supply: The input supply for SD2. +- in-v3-supply: The input supply for SD3. +- in1-supply: The input supply for LDO1. +... +- in20-supply: The input supply for LDO20. +- regulators: A node that houses a sub-node for each regulator within the + device. Each sub-node is identified using the node's name (or the deprecated + regulator-compatible property if present), with valid values listed below. + The content of each sub-node is defined by the standard binding for + regulators; see regulator.txt. + +Optional properties: +- maxim,system-power-controller: Boolean property indicating that the PMIC + controls the overall system power. + +The valid names for regulators are: + + sd1, sd2, sd3, ldo1, ldo2, ldo3, ldo4, ldo5, ldo6, ldo7, ldo8, ldo9, ldo10, + ldo11, ldo12, ldo13, ldo14, ldo15, ldo16, ldo17, ldo18, ldo19, ldo20, out5v, + out33v, bbat, sdby, vrtc. + +Example: + + max8907@3c { + compatible = "maxim,max8907"; + reg = <0x3c>; + interrupts = <0 86 0x4>; + + maxim,system-power-controller; + + mbatt-supply = <&some_reg>; + in-v1-supply = <&mbatt_reg>; + ... + in1-supply = <&mbatt_reg>; + ... + + regulators { + mbatt_reg: mbatt { + regulator-name = "vbat_pmu"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-always-on; + }; + + sd1 { + regulator-name = "nvvdd_sv1,vdd_cpu_pmu"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + }; + + sd2 { + regulator-name = "nvvdd_sv2,vdd_core"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-always-on; + }; +... + }; + }; + }; diff --git a/Documentation/devicetree/bindings/regulator/tps6586x.txt b/Documentation/devicetree/bindings/regulator/tps6586x.txt index 07b9ef6e49d5..8b40cac24d93 100644 --- a/Documentation/devicetree/bindings/regulator/tps6586x.txt +++ b/Documentation/devicetree/bindings/regulator/tps6586x.txt @@ -22,6 +22,10 @@ Required properties: - vinldo678-supply: The input supply for the LDO6, LDO7 and LDO8 - vinldo9-supply: The input supply for the LDO9 +Optional properties: +- ti,system-power-controller: Telling whether or not this pmic is controlling + the system power. + Each regulator is defined using the standard binding for regulators. Note: LDO5 and LDO_RTC is supplied by SYS regulator internally and driver @@ -37,6 +41,8 @@ Example: #gpio-cells = <2>; gpio-controller; + ti,system-power-controller; + sys-supply = <&some_reg>; vin-sm0-supply = <&some_reg>; vin-sm1-supply = <&some_reg>; diff --git a/Documentation/devicetree/bindings/video/backlight/88pm860x.txt b/Documentation/devicetree/bindings/video/backlight/88pm860x.txt new file mode 100644 index 000000000000..261df2799315 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/88pm860x.txt @@ -0,0 +1,15 @@ +88pm860x-backlight bindings + +Optional properties: + - marvell,88pm860x-iset: Current supplies on backlight device. + - marvell,88pm860x-pwm: PWM frequency on backlight device. + +Example: + + backlights { + backlight-0 { + marvell,88pm860x-iset = <4>; + marvell,88pm860x-pwm = <3>; + }; + backlight-2 { + }; diff --git a/Documentation/smsc_ece1099.txt b/Documentation/smsc_ece1099.txt new file mode 100644 index 000000000000..6b492e82b43d --- /dev/null +++ b/Documentation/smsc_ece1099.txt @@ -0,0 +1,56 @@ +What is smsc-ece1099? +---------------------- + +The ECE1099 is a 40-Pin 3.3V Keyboard Scan Expansion +or GPIO Expansion device. The device supports a keyboard +scan matrix of 23x8. The device is connected to a Master +via the SMSC BC-Link interface or via the SMBus. +Keypad scan Input(KSI) and Keypad Scan Output(KSO) signals +are multiplexed with GPIOs. + +Interrupt generation +-------------------- + +Interrupts can be generated by an edge detection on a GPIO +pin or an edge detection on one of the bus interface pins. +Interrupts can also be detected on the keyboard scan interface. +The bus interrupt pin (BC_INT# or SMBUS_INT#) is asserted if +any bit in one of the Interrupt Status registers is 1 and +the corresponding Interrupt Mask bit is also 1. + +In order for software to determine which device is the source +of an interrupt, it should first read the Group Interrupt Status Register +to determine which Status register group is a source for the interrupt. +Software should read both the Status register and the associated Mask register, +then AND the two values together. Bits that are 1 in the result of the AND +are active interrupts. Software clears an interrupt by writing a 1 to the +corresponding bit in the Status register. + +Communication Protocol +---------------------- + +- SMbus slave Interface + The host processor communicates with the ECE1099 device + through a series of read/write registers via the SMBus + interface. SMBus is a serial communication protocol between + a computer host and its peripheral devices. The SMBus data + rate is 10KHz minimum to 400 KHz maximum + +- Slave Bus Interface + The ECE1099 device SMBus implementation is a subset of the + SMBus interface to the host. The device is a slave-only SMBus device. + The implementation in the device is a subset of SMBus since it + only supports four protocols. + + The Write Byte, Read Byte, Send Byte, and Receive Byte protocols are the + only valid SMBus protocols for the device. + +- BC-LinkTM Interface + The BC-Link is a proprietary bus that allows communication + between a Master device and a Companion device. The Master + device uses this serial bus to read and write registers + located on the Companion device. The bus comprises three signals, + BC_CLK, BC_DAT and BC_INT#. The Master device always provides the + clock, BC_CLK, and the Companion device is the source for an + independent asynchronous interrupt signal, BC_INT#. The ECE1099 + supports BC-Link speeds up to 24MHz. |