Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC updates from Olof Johansson:
 "This contains the bulk of new SoC development for this merge window.

  Two new platforms have been added, the sunxi platforms (Allwinner A1x
  SoCs) by Maxime Ripard, and a generic Broadcom platform for a new
  series of ARMv7 platforms from them, where the hope is that we can
  keep the platform code generic enough to have them all share one mach
  directory.  The new Broadcom platform is contributed by Christian
  Daudt.

  Highbank has grown support for Calxeda's next generation of hardware,
  ECX-2000.

  clps711x has seen a lot of cleanup from Alexander Shiyan, and he's
  also taken on maintainership of the platform.

  Beyond this there has been a bunch of work from a number of people on
  converting more platforms to IRQ domains, pinctrl conversion, cleanup
  and general feature enablement across most of the active platforms."

Fix up trivial conflicts as per Olof.

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (174 commits)
  mfd: vexpress-sysreg: Remove LEDs code
  irqchip: irq-sunxi: Add terminating entry for sunxi_irq_dt_ids
  clocksource: sunxi_timer: Add terminating entry for sunxi_timer_dt_ids
  irq: versatile: delete dangling variable
  ARM: sunxi: add missing include for mdelay()
  ARM: EXYNOS: Avoid early use of of_machine_is_compatible()
  ARM: dts: add node for PL330 MDMA1 controller for exynos4
  ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412
  ARM: EXYNOS: add UART3 to DEBUG_LL ports
  ARM: S3C24XX: Add clkdev entry for camif-upll clock
  ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers
  ARM: sunxi: Add missing sun4i.dtsi file
  pinctrl: samsung: Do not initialise statics to 0
  ARM i.MX6: remove gate_mask from pllv3
  ARM i.MX6: Fix ethernet PLL clocks
  ARM i.MX6: rename PLLs according to datasheet
  ARM i.MX6: Add pwm support
  ARM i.MX51: Add pwm support
  ARM i.MX53: Add pwm support
  ARM: mx5: Replace clk_register_clkdev with clock DT lookup
  ...

1 files changed, 94 insertions, 25 deletions

diff --git a/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
index 03dee50532f5..e97a27856b21 100644
--- a/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
@@ -8,13 +8,20 @@ on-chip controllers onto these pads.
 Required Properties:
 - compatible: should be one of the following.
   - "samsung,pinctrl-exynos4210": for Exynos4210 compatible pin-controller.
+  - "samsung,pinctrl-exynos4x12": for Exynos4x12 compatible pin-controller.
   - "samsung,pinctrl-exynos5250": for Exynos5250 compatible pin-controller.
 
 - reg: Base address of the pin controller hardware module and length of
   the address space it occupies.
 
-- interrupts: interrupt specifier for the controller. The format and value of
-  the interrupt specifier depends on the interrupt parent for the controller.
+- Pin banks as child nodes: Pin banks of the controller are represented by child
+  nodes of the controller node. Bank name is taken from name of the node. Each
+  bank node must contain following properties:
+
+  - gpio-controller: identifies the node as a gpio controller and pin bank.
+  - #gpio-cells: number of cells in GPIO specifier. Since the generic GPIO
+    binding is used, the amount of cells must be specified as 2. See generic
+    GPIO binding documentation for description of particular cells.
 
 - Pin mux/config groups as child nodes: The pin mux (selecting pin function
   mode) and pin config (pull up/down, driver strength) settings are represented
@@ -72,16 +79,24 @@ used as system wakeup events.
 A. External GPIO Interrupts: For supporting external gpio interrupts, the
    following properties should be specified in the pin-controller device node.
 
-- interrupt-controller: identifies the controller node as interrupt-parent.
-- #interrupt-cells: the value of this property should be 2.
-  - First Cell: represents the external gpio interrupt number local to the
-    external gpio interrupt space of the controller.
-  - Second Cell: flags to identify the type of the interrupt
-    - 1 = rising edge triggered
-    - 2 = falling edge triggered
-    - 3 = rising and falling edge triggered
-    - 4 = high level triggered
-    - 8 = low level triggered
+   - interrupt-parent: phandle of the interrupt parent to which the external
+     GPIO interrupts are forwarded to.
+   - interrupts: interrupt specifier for the controller. The format and value of
+     the interrupt specifier depends on the interrupt parent for the controller.
+
+   In addition, following properties must be present in node of every bank
+   of pins supporting GPIO interrupts:
+
+   - interrupt-controller: identifies the controller node as interrupt-parent.
+   - #interrupt-cells: the value of this property should be 2.
+     - First Cell: represents the external gpio interrupt number local to the
+       external gpio interrupt space of the controller.
+     - Second Cell: flags to identify the type of the interrupt
+       - 1 = rising edge triggered
+       - 2 = falling edge triggered
+       - 3 = rising and falling edge triggered
+       - 4 = high level triggered
+       - 8 = low level triggered
 
 B. External Wakeup Interrupts: For supporting external wakeup interrupts, a
    child node representing the external wakeup interrupt controller should be
@@ -94,6 +109,11 @@ B. External Wakeup Interrupts: For supporting external wakeup interrupts, a
        found on Samsung Exynos4210 SoC.
    - interrupt-parent: phandle of the interrupt parent to which the external
      wakeup interrupts are forwarded to.
+   - interrupts: interrupt used by multiplexed wakeup interrupts.
+
+   In addition, following properties must be present in node of every bank
+   of pins supporting wake-up interrupts:
+
    - interrupt-controller: identifies the node as interrupt-parent.
    - #interrupt-cells: the value of this property should be 2
      - First Cell: represents the external wakeup interrupt number local to
@@ -105,11 +125,63 @@ B. External Wakeup Interrupts: For supporting external wakeup interrupts, a
        - 4 = high level triggered
        - 8 = low level triggered
 
+   Node of every bank of pins supporting direct wake-up interrupts (without
+   multiplexing) must contain following properties:
+
+   - interrupt-parent: phandle of the interrupt parent to which the external
+     wakeup interrupts are forwarded to.
+   - interrupts: interrupts of the interrupt parent which are used for external
+     wakeup interrupts from pins of the bank, must contain interrupts for all
+     pins of the bank.
+
 Aliases:
 
 All the pin controller nodes should be represented in the aliases node using
 the following format 'pinctrl{n}' where n is a unique number for the alias.
 
+Example: A pin-controller node with pin banks:
+
+        pinctrl_0: pinctrl@11400000 {
+                compatible = "samsung,pinctrl-exynos4210";
+                reg = <0x11400000 0x1000>;
+                interrupts = <0 47 0>;
+
+                /* ... */
+
+                /* Pin bank without external interrupts */
+                gpy0: gpy0 {
+                        gpio-controller;
+                        #gpio-cells = <2>;
+                };
+
+                /* ... */
+
+                /* Pin bank with external GPIO or muxed wake-up interrupts */
+                gpj0: gpj0 {
+                        gpio-controller;
+                        #gpio-cells = <2>;
+
+                        interrupt-controller;
+                        #interrupt-cells = <2>;
+                };
+
+                /* ... */
+
+                /* Pin bank with external direct wake-up interrupts */
+                gpx0: gpx0 {
+                        gpio-controller;
+                        #gpio-cells = <2>;
+
+                        interrupt-controller;
+                        interrupt-parent = <&gic>;
+                        interrupts = <0 16 0>, <0 17 0>, <0 18 0>, <0 19 0>,
+                                     <0 20 0>, <0 21 0>, <0 22 0>, <0 23 0>;
+                        #interrupt-cells = <2>;
+                };
+
+                /* ... */
+        };
+
 Example 1: A pin-controller node with pin groups.
 
         pinctrl_0: pinctrl@11400000 {
@@ -117,6 +189,8 @@ Example 1: A pin-controller node with pin groups.
                 reg = <0x11400000 0x1000>;
                 interrupts = <0 47 0>;
 
+                /* ... */
+
                 uart0_data: uart0-data {
                         samsung,pins = "gpa0-0", "gpa0-1";
                         samsung,pin-function = <2>;
@@ -158,20 +232,14 @@ Example 2: A pin-controller node with external wakeup interrupt controller node.
         pinctrl_1: pinctrl@11000000 {
                 compatible = "samsung,pinctrl-exynos4210";
                 reg = <0x11000000 0x1000>;
-                interrupts = <0 46 0>;
-                interrupt-controller;
-                #interrupt-cells = <2>;
+                interrupts = <0 46 0>
 
-                wakup_eint: wakeup-interrupt-controller {
+                /* ... */
+
+                wakeup-interrupt-controller {
                         compatible = "samsung,exynos4210-wakeup-eint";
                         interrupt-parent = <&gic>;
-                        interrupt-controller;
-                        #interrupt-cells = <2>;
-                        interrupts = <0 16 0>, <0 17 0>, <0 18 0>, <0 19 0>,
-                                        <0 20 0>, <0 21 0>, <0 22 0>, <0 23 0>,
-                                        <0 24 0>, <0 25 0>, <0 26 0>, <0 27 0>,
-                                        <0 28 0>, <0 29 0>, <0 30 0>, <0 31 0>,
-                                        <0 32 0>;
+                        interrupts = <0 32 0>;
                 };
         };
 
@@ -190,7 +258,8 @@ Example 4: Set up the default pin state for uart controller.
 
         static int s3c24xx_serial_probe(struct platform_device *pdev) {
                 struct pinctrl *pinctrl;
-                ...
-                ...
+
+                /* ... */
+
                 pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
         }