Merge tag 'drivers-for-3.16' of git://git.kernel.org/pub/scm/linux/ke…

…rnel/git/arm/arm-soc into next

Pull ARM SoC driver changes from Olof Johansson:
 "SoC-near driver changes that we're merging through our tree.  Mostly
  because they depend on other changes we have staged, but in some cases
  because the driver maintainers preferred that we did it this way.

  This contains a largeish cleanup series of the omap_l3_noc bus driver,
  cpuidle rework for Exynos, some reset driver conversions and a long
  branch of TI EDMA fixes and cleanups, with more to come next release.

  The TI EDMA cleanups is a shared branch with the dmaengine tree, with
  a handful of Davinci-specific fixes on top.

  After discussion at last year's KS (and some more on the mailing
  lists), we are here adding a drivers/soc directory.  The purpose of
  this is to keep per-vendor shared code that's needed by different
  drivers but that doesn't fit into the MFD (nor drivers/platform)
  model.  We expect to keep merging contents for this hierarchy through
  arm-soc so we can keep an eye on what the vendors keep adding here and
  not making it a free-for-all to shove in crazy stuff"

* tag 'drivers-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (101 commits)
  cpufreq: exynos: Fix driver compilation with ARCH_MULTIPLATFORM
  tty: serial: msm: Remove direct access to GSBI
  power: reset: keystone-reset: introduce keystone reset driver
  Documentation: dt: add bindings for keystone pll control controller
  Documentation: dt: add bindings for keystone reset driver
  soc: qcom: fix of_device_id table
  ARM: EXYNOS: Fix kernel panic when unplugging CPU1 on exynos
  ARM: EXYNOS: Move the driver to drivers/cpuidle directory
  ARM: EXYNOS: Cleanup all unneeded headers from cpuidle.c
  ARM: EXYNOS: Pass the AFTR callback to the platform_data
  ARM: EXYNOS: Move S5P_CHECK_SLEEP into pm.c
  ARM: EXYNOS: Move the power sequence call in the cpu_pm notifier
  ARM: EXYNOS: Move the AFTR state function into pm.c
  ARM: EXYNOS: Encapsulate the AFTR code into a function
  ARM: EXYNOS: Disable cpuidle for exynos5440
  ARM: EXYNOS: Encapsulate boot vector code into a function for cpuidle
  ARM: EXYNOS: Pass wakeup mask parameter to function for cpuidle
  ARM: EXYNOS: Remove ifdef for scu_enable in pm
  ARM: EXYNOS: Move scu_enable in the cpu_pm notifier
  ARM: EXYNOS: Use the cpu_pm notifier for pm
  ...

Documentation/ABI/testing/sysfs-platform-brcmstb-gisb-arb

@@ -0,0 +1,8 @@
+What:		/sys/devices/../../gisb_arb_timeout
+Date:		May 2014
+KernelVersion:	3.17
+Contact:	Florian Fainelli <[email protected]>
+Description:
+		Returns the currently configured raw timeout value of the
+		Broadcom Set Top Box internal GISB bus arbiter. Minimum value
+		is 1, and maximum value is 0xffffffff.

Documentation/devicetree/bindings/arm/omap/l3-noc.txt

@@ -6,6 +6,8 @@ provided by Arteris.
 Required properties:
 - compatible : Should be "ti,omap3-l3-smx" for OMAP3 family
                Should be "ti,omap4-l3-noc" for OMAP4 family
+	       Should be "ti,dra7-l3-noc" for DRA7 family
+               Should be "ti,am4372-l3-noc" for AM43 family
 - reg:	Contains L3 register address range for each noc domain.
 - ti,hwmods: "l3_main_1", ... One hwmod for each noc domain.
 

Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt

@@ -0,0 +1,30 @@
+Broadcom GISB bus Arbiter controller
+
+Required properties:
+
+- compatible: should be "brcm,gisb-arb"
+- reg: specifies the base physical address and size of the registers
+- interrupt-parent: specifies the phandle to the parent interrupt controller
+  this arbiter gets interrupt line from
+- interrupts: specifies the two interrupts (timeout and TEA) to be used from
+  the parent interrupt controller
+
+Optional properties:
+
+- brcm,gisb-arb-master-mask: 32-bits wide bitmask used to specify which GISB
+  masters are valid at the system level
+- brcm,gisb-arb-master-names: string list of the litteral name of the GISB
+  masters. Should match the number of bits set in brcm,gisb-master-mask and
+  the order in which they appear
+
+Example:
+
+gisb-arb@f0400000 {
+	compatible = "brcm,gisb-arb";
+	reg = <0xf0400000 0x800>;
+	interrupts = <0>, <2>;
+	interrupt-parent = <&sun_l2_intc>;
+
+	brcm,gisb-arb-master-mask = <0x7>;
+	brcm,gisb-arb-master-names = "bsp_0", "scpu_0", "cpu_0";
+};

Documentation/devicetree/bindings/clock/ti-keystone-pllctrl.txt

@@ -0,0 +1,20 @@
+* Device tree bindings for Texas Instruments keystone pll controller
+
+The main pll controller used to drive theC66x CorePacs, the switch fabric,
+and a majority of the peripheral clocks (all but the ARM CorePacs, DDR3 and
+the NETCP modules) requires a PLL Controller to manage the various clock
+divisions, gating, and synchronization.
+
+Required properties:
+
+- compatible:		"ti,keystone-pllctrl", "syscon"
+
+- reg:			contains offset/length value for pll controller
+			registers space.
+
+Example:
+
+pllctrl: pll-controller@0x02310000 {
+	compatible = "ti,keystone-pllctrl", "syscon";
+	reg = <0x02310000 0x200>;
+};

Documentation/devicetree/bindings/dma/ti-edma.txt

@@ -2,11 +2,8 @@ TI EDMA
 
 Required properties:
 - compatible : "ti,edma3"
-- ti,edma-regions: Number of regions
-- ti,edma-slots: Number of slots
 - #dma-cells: Should be set to <1>
               Clients should use a single channel number per DMA request.
-- dma-channels: Specify total DMA channels per CC
 - reg: Memory map for accessing module
 - interrupt-parent: Interrupt controller the interrupt is routed through
 - interrupts: Exactly 3 interrupts need to be specified in the order:
@@ -17,6 +14,13 @@ Optional properties:
 - ti,hwmods: Name of the hwmods associated to the EDMA
 - ti,edma-xbar-event-map: Crossbar event to channel map
 
+Deprecated properties:
+Listed here in case one wants to boot an old kernel with new DTB. These
+properties might need to be added to the new DTS files.
+- ti,edma-regions: Number of regions
+- ti,edma-slots: Number of slots
+- dma-channels: Specify total DMA channels per CC
+
 Example:
 
 edma: edma@49000000 {
@@ -26,9 +30,6 @@ edma: edma@49000000 {
 	compatible = "ti,edma3";
 	ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
 	#dma-cells = <1>;
-	dma-channels = <64>;
-	ti,edma-regions = <4>;
-	ti,edma-slots = <256>;
 	ti,edma-xbar-event-map = /bits/ 16 <1 12
 					    2 13>;
 };

Documentation/devicetree/bindings/memory-controllers/mvebu-devbus.txt

@@ -6,10 +6,11 @@ The actual devices are instantiated from the child nodes of a Device Bus node.
 
 Required properties:
 
- - compatible:          Currently only Armada 370/XP SoC are supported,
-                        with this compatible string:
+ - compatible:          Armada 370/XP SoC are supported using the
+                        "marvell,mvebu-devbus" compatible string.
 
-                        marvell,mvebu-devbus
+                        Orion5x SoC are supported using the
+                        "marvell,orion-devbus" compatible string.
 
  - reg:                 A resource specifier for the register space.
                         This is the base address of a chip select within
@@ -22,36 +23,50 @@ Required properties:
                         integer values for each chip-select line in use:
                         0 <physical address of mapping> <size>
 
-Mandatory timing properties for child nodes:
+Optional properties:
+
+ - devbus,keep-config   This property can optionally be used to keep
+                        using the timing parameters set by the
+                        bootloader. It makes all the timing properties
+                        described below unused.
+
+Timing properties for child nodes:
 
 Read parameters:
 
  - devbus,turn-off-ps:  Defines the time during which the controller does not
                         drive the AD bus after the completion of a device read.
                         This prevents contentions on the Device Bus after a read
                         cycle from a slow device.
+                        Mandatory, except if devbus,keep-config is used.
 
- - devbus,bus-width:    Defines the bus width (e.g. <16>)
+ - devbus,bus-width:    Defines the bus width, in bits (e.g. <16>).
+                        Mandatory, except if devbus,keep-config is used.
 
  - devbus,badr-skew-ps: Defines the time delay from from A[2:0] toggle,
                         to read data sample. This parameter is useful for
                         synchronous pipelined devices, where the address
                         precedes the read data by one or two cycles.
+                        Mandatory, except if devbus,keep-config is used.
 
  - devbus,acc-first-ps: Defines the time delay from the negation of
                         ALE[0] to the cycle that the first read data is sampled
                         by the controller.
+                        Mandatory, except if devbus,keep-config is used.
 
  - devbus,acc-next-ps:  Defines the time delay between the cycle that
                         samples data N and the cycle that samples data N+1
                         (in burst accesses).
+                        Mandatory, except if devbus,keep-config is used.
 
  - devbus,rd-setup-ps:  Defines the time delay between DEV_CSn assertion to
 			DEV_OEn assertion. If set to 0 (default),
                         DEV_OEn and DEV_CSn are asserted at the same cycle.
                         This parameter has no affect on <acc-first-ps> parameter
                         (no affect on first data sample). Set <rd-setup-ps>
                         to a value smaller than <acc-first-ps>.
+                        Mandatory for "marvell,mvebu-devbus" compatible string,
+                        except if devbus,keep-config is used.
 
  - devbus,rd-hold-ps:   Defines the time between the last data sample to the
 			de-assertion of DEV_CSn. If set to 0 (default),
@@ -62,27 +77,34 @@ Read parameters:
                         last data sampled. Also this parameter has no
                         affect on <turn-off-ps> parameter.
                         Set <rd-hold-ps> to a value smaller than <turn-off-ps>.
+                        Mandatory for "marvell,mvebu-devbus" compatible string,
+                        except if devbus,keep-config is used.
 
 Write parameters:
 
  - devbus,ale-wr-ps:    Defines the time delay from the ALE[0] negation cycle
 			to the DEV_WEn assertion.
+                        Mandatory.
 
  - devbus,wr-low-ps:    Defines the time during which DEV_WEn is active.
                         A[2:0] and Data are kept valid as long as DEV_WEn
                         is active. This parameter defines the setup time of
                         address and data to DEV_WEn rise.
+                        Mandatory.
 
  - devbus,wr-high-ps:   Defines the time during which DEV_WEn is kept
                         inactive (high) between data beats of a burst write.
                         DEV_A[2:0] and Data are kept valid (do not toggle) for
                         <wr-high-ps> - <tick> ps.
 			This parameter defines the hold time of address and
 			data after DEV_WEn rise.
+                        Mandatory.
 
  - devbus,sync-enable: Synchronous device enable.
                        1: True
                        0: False
+                       Mandatory for "marvell,mvebu-devbus" compatible string,
+                       except if devbus,keep-config is used.
 
 An example for an Armada XP GP board, with a 16 MiB NOR device as child
 is showed below. Note that the Device Bus driver is in charge of allocating

Documentation/devicetree/bindings/power/reset/keystone-reset.txt

@@ -0,0 +1,67 @@
+* Device tree bindings for Texas Instruments keystone reset
+
+This node is intended to allow SoC reset in case of software reset
+of selected watchdogs.
+
+The Keystone SoCs can contain up to 4 watchdog timers to reset
+SoC. Each watchdog timer event input is connected to the Reset Mux
+block. The Reset Mux block can be configured to cause reset or not.
+
+Additionally soft or hard reset can be configured.
+
+Required properties:
+
+- compatible:		ti,keystone-reset
+
+- ti,syscon-pll:	phandle/offset pair. The phandle to syscon used to
+			access pll controller registers and the offset to use
+			reset control registers.
+
+- ti,syscon-dev:	phandle/offset pair. The phandle to syscon used to
+			access device state control registers and the offset
+			in order to use mux block registers for all watchdogs.
+
+Optional properties:
+
+- ti,soft-reset:	Boolean option indicating soft reset.
+			By default hard reset is used.
+
+- ti,wdt-list:		WDT list that can cause SoC reset. It's not related
+			to WDT driver, it's just needed to enable a SoC related
+			reset that's triggered by one of WDTs. The list is
+			in format: <0>, <2>; It can be in random order and
+			begins from 0 to 3, as keystone can contain up to 4 SoC
+			reset watchdogs and can be in random order.
+
+Example 1:
+Setup keystone reset so that in case software reset or
+WDT0 is triggered it issues hard reset for SoC.
+
+pllctrl: pll-controller@02310000 {
+	compatible = "ti,keystone-pllctrl", "syscon";
+	reg = <0x02310000 0x200>;
+};
+
+devctrl: device-state-control@02620000 {
+	compatible = "ti,keystone-devctrl", "syscon";
+	reg = <0x02620000 0x1000>;
+};
+
+rstctrl: reset-controller {
+	compatible = "ti,keystone-reset";
+	ti,syscon-pll = <&pllctrl 0xe4>;
+	ti,syscon-dev = <&devctrl 0x328>;
+	ti,wdt-list = <0>;
+};
+
+Example 2:
+Setup keystone reset so that in case of software reset or
+WDT0 or WDT2 is triggered it issues soft reset for SoC.
+
+rstctrl: reset-controller {
+	compatible = "ti,keystone-reset";
+	ti,syscon-pll = <&pllctrl 0xe4>;
+	ti,syscon-dev = <&devctrl 0x328>;
+	ti,wdt-list = <0>, <2>;
+	ti,soft-reset;
+};

Documentation/devicetree/bindings/reset/allwinner,sunxi-clock-reset.txt

@@ -0,0 +1,21 @@
+Allwinner sunxi Peripheral Reset Controller
+===========================================
+
+Please also refer to reset.txt in this directory for common reset
+controller binding usage.
+
+Required properties:
+- compatible: Should be one of the following:
+  "allwinner,sun6i-a31-ahb1-reset"
+  "allwinner,sun6i-a31-clock-reset"
+- reg: should be register base and length as documented in the
+  datasheet
+- #reset-cells: 1, see below
+
+example:
+
+ahb1_rst: reset@01c202c0 {
+	#reset-cells = <1>;
+	compatible = "allwinner,sun6i-a31-ahb1-reset";
+	reg = <0x01c202c0 0xc>;
+};

arch/arm/boot/dts/am33xx.dtsi

@@ -147,9 +147,6 @@
 				<0x44e10f90 0x40>;
 			interrupts = <12 13 14>;
 			#dma-cells = <1>;
-			dma-channels = <64>;
-			ti,edma-regions = <4>;
-			ti,edma-slots = <256>;
 		};
 
 		gpio0: gpio@44e07000 {

arch/arm/boot/dts/am4372.dtsi

@@ -112,9 +112,6 @@
 					<GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
 					<GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
 			#dma-cells = <1>;
-			dma-channels = <64>;
-			ti,edma-regions = <4>;
-			ti,edma-slots = <256>;
 		};
 
 		uart0: serial@44e09000 {