Merge tag 'clk-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clock framework updates from Michael Turquette:
 "The changes to the common clock framework for 4.2 are dominated by new
  drivers and updates to existing ones, as usual.

  There are some fixes to the framework itself and several cleanups for
  sparse warnings, etc"

* tag 'clk-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (135 commits)
  clk: stm32: Add clock driver for STM32F4[23]xxx devices
  dt-bindings: Document the STM32F4 clock bindings
  cpufreq: exynos: remove Exynos4210 specific cpufreq driver support
  ARM: Exynos: switch to using generic cpufreq driver for Exynos4210
  clk: samsung: exynos4: add cpu clock configuration data and instantiate cpu clock
  clk: samsung: add infrastructure to register cpu clocks
  clk: add CLK_RECALC_NEW_RATES clock flag for Exynos cpu clock support
  doc: dt: add documentation for lpc1850-ccu clk driver
  clk: add lpc18xx ccu clk driver
  doc: dt: add documentation for lpc1850-cgu clk driver
  clk: add lpc18xx cgu clk driver
  clk: keystone: add support for post divider register for main pll
  clk: mvebu: flag the crypto clk as CLK_IGNORE_UNUSED
  clk: cygnus: remove Cygnus dummy clock binding
  clk: cygnus: add clock support for Broadcom Cygnus
  clk: Change bcm clocks build dependency
  clk: iproc: add initial common clock support
  clk: iproc: define Broadcom iProc clock binding
  MAINTAINERS: update email for Michael Turquette
  clk: meson: add some error handling in meson_clk_register_cpu()
  ...

1 files changed, 77 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/lpc1850-ccu.txt b/Documentation/devicetree/bindings/clock/lpc1850-ccu.txt
new file mode 100644
index 000000000000..fa97c12014ac
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/lpc1850-ccu.txt
@@ -0,0 +1,77 @@
+* NXP LPC1850 Clock Control Unit (CCU)
+
+Each CGU base clock has several clock branches which can be turned on
+or off independently by the Clock Control Units CCU1 or CCU2. The
+branch clocks are distributed between CCU1 and CCU2.
+
+ - Above text taken from NXP LPC1850 User Manual.
+
+This binding uses the common clock binding:
+    Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible:
+	Should be "nxp,lpc1850-ccu"
+- reg:
+	Shall define the base and range of the address space
+	containing clock control registers
+- #clock-cells:
+	Shall have value <1>.  The permitted clock-specifier values
+	are the branch clock names defined in table below.
+- clocks:
+	Shall contain a list of phandles for the base clocks routed
+	from the CGU to the specific CCU. See mapping of base clocks
+	and CCU in table below.
+- clock-names:
+	Shall contain a list of names for the base clock routed
+	from the CGU to the specific CCU. Valid CCU clock names:
+	"base_usb0_clk",  "base_periph_clk", "base_usb1_clk",
+	"base_cpu_clk",   "base_spifi_clk",  "base_spi_clk",
+	"base_apb1_clk",  "base_apb3_clk",   "base_adchs_clk",
+	"base_sdio_clk",  "base_ssp0_clk",   "base_ssp1_clk",
+	"base_uart0_clk", "base_uart1_clk",  "base_uart2_clk",
+	"base_uart3_clk", "base_audio_clk"
+
+Which branch clocks that are available on the CCU depends on the
+specific LPC part. Check the user manual for your specific part.
+
+A list of CCU clocks can be found in dt-bindings/clock/lpc18xx-ccu.h.
+
+Example board file:
+
+soc {
+	ccu1: clock-controller@40051000 {
+		compatible = "nxp,lpc1850-ccu";
+		reg = <0x40051000 0x1000>;
+		#clock-cells = <1>;
+		clocks = <&cgu BASE_APB3_CLK>,   <&cgu BASE_APB1_CLK>,
+			 <&cgu BASE_SPIFI_CLK>,  <&cgu BASE_CPU_CLK>,
+			 <&cgu BASE_PERIPH_CLK>, <&cgu BASE_USB0_CLK>,
+			 <&cgu BASE_USB1_CLK>,   <&cgu BASE_SPI_CLK>;
+		clock-names = "base_apb3_clk",   "base_apb1_clk",
+			      "base_spifi_clk",  "base_cpu_clk",
+			      "base_periph_clk", "base_usb0_clk",
+			      "base_usb1_clk",   "base_spi_clk";
+	};
+
+	ccu2: clock-controller@40052000 {
+		compatible = "nxp,lpc1850-ccu";
+		reg = <0x40052000 0x1000>;
+		#clock-cells = <1>;
+		clocks = <&cgu BASE_AUDIO_CLK>, <&cgu BASE_UART3_CLK>,
+			 <&cgu BASE_UART2_CLK>, <&cgu BASE_UART1_CLK>,
+			 <&cgu BASE_UART0_CLK>, <&cgu BASE_SSP1_CLK>,
+			 <&cgu BASE_SSP0_CLK>,  <&cgu BASE_SDIO_CLK>;
+		clock-names = "base_audio_clk", "base_uart3_clk",
+			      "base_uart2_clk", "base_uart1_clk",
+			      "base_uart0_clk", "base_ssp1_clk",
+			      "base_ssp0_clk",  "base_sdio_clk";
+	};
+
+	/* A user of CCU brach clocks */
+	uart1: serial@40082000 {
+		...
+		clocks = <&ccu2 CLK_APB0_UART1>, <&ccu1 CLK_CPU_UART1>;
+		...
+	};
+};