Merge branches 'clk-spreadtrum', 'clk-stm32f', 'clk-stm32mp1', 'clk-hi655x' and 'clk-gpio' into clk-next

* clk-spreadtrum:
  clk: sprd: add RTC gate for SC9860
  dt-bindings: clocks: add APB RTC gate for SC9860

* clk-stm32f:
  clk: stm32: Add clk entry for SDMMC2 on stm32F769
  clk: stm32: Add DSI clock for STM32F469 Board
  clk: stm32: END_PRIMARY_CLK should be declare after CLK_SYSCLK

* clk-stm32mp1:
  clk: stm32: add configuration flags for each of the stm32 drivers
  clk: stm32mp1: add Debug clocks
  clk: stm32mp1: add MCO clocks
  clk: stm32mp1: add RTC clock
  clk: stm32mp1: add Peripheral & Kernel Clocks
  clk: stm32mp1: add Kernel timers
  clk: stm32mp1: add Sub System clocks
  clk: stm32mp1: add Post-dividers for PLL
  clk: stm32mp1: add PLL clocks
  clk: stm32mp1: add Source Clocks for PLLs
  clk: stm32mp1: add MP1 gate for hse/hsi/csi oscillators
  clk: stm32mp1: Introduce STM32MP1 clock driver
  dt-bindings: Document STM32MP1 Reset Clock Controller (RCC) bindings

* clk-hi655x:
  clk: enable hi655x common clk automatically

* clk-gpio:
  clk: clk-gpio: Allow GPIO to sleep in set/get_parent
This commit is contained in:
Stephen Boyd
2018-04-06 13:21:45 -07:00
10 changed files with 2572 additions and 12 deletions

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STMicroelectronics STM32 Peripheral Reset Clock Controller
==========================================================
The RCC IP is both a reset and a clock controller.
RCC makes also power management (resume/supend and wakeup interrupt).
Please also refer to reset.txt for common reset controller binding usage.
Please also refer to clock-bindings.txt for common clock controller
binding usage.
Required properties:
- compatible: "st,stm32mp1-rcc", "syscon"
- reg: should be register base and length as documented in the datasheet
- #clock-cells: 1, device nodes should specify the clock in their
"clocks" property, containing a phandle to the clock device node,
an index specifying the clock to use.
- #reset-cells: Shall be 1
- interrupts: Should contain a general interrupt line and a interrupt line
to the wake-up of processor (CSTOP).
Example:
rcc: rcc@50000000 {
compatible = "st,stm32mp1-rcc", "syscon";
reg = <0x50000000 0x1000>;
#clock-cells = <1>;
#reset-cells = <1>;
interrupts = <GIC_SPI 5 IRQ_TYPE_NONE>,
<GIC_SPI 145 IRQ_TYPE_NONE>;
};
Specifying clocks
=================
All available clocks are defined as preprocessor macros in
dt-bindings/clock/stm32mp1-clks.h header and can be used in device
tree sources.
Specifying softreset control of devices
=======================================
Device nodes should specify the reset channel required in their "resets"
property, containing a phandle to the reset device node and an index specifying
which channel to use.
The index is the bit number within the RCC registers bank, starting from RCC
base address.
It is calculated as: index = register_offset / 4 * 32 + bit_offset.
Where bit_offset is the bit offset within the register.
For example on STM32MP1, for LTDC reset:
ltdc = APB4_RSTSETR_offset / 4 * 32 + LTDC_bit_offset
= 0x180 / 4 * 32 + 0 = 3072
The list of valid indices for STM32MP1 is available in:
include/dt-bindings/reset-controller/stm32mp1-resets.h
This file implements defines like:
#define LTDC_R 3072