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

…ernel/git/arm/arm-soc

Pull ARM SoC driver changes from Olof Johansson:
 "This is a rather large set of patches for device drivers that for one
  reason or another the subsystem maintainer preferred to get merged
  through the arm-soc tree.  There are both new drivers as well as
  existing drivers that are getting converted from platform-specific
  code into standalone drivers using the appropriate subsystem specific
  interfaces.

  In particular, we can now have pinctrl, clk, clksource and irqchip
  drivers in one file per driver, without the need to call into platform
  specific interface, or to get called from platform specific code, as
  long as all information about the hardware is provided through a
  device tree.

  Most of the drivers we touch this time are for clocksource.  Since now
  most of them are part of drivers/clocksource, I expect that we won't
  have to touch these again from arm-soc and can let the clocksource
  maintainers take care of these in the future.

  Another larger part of this series is specific to the exynos platform,
  which is seeing some significant effort in upstreaming and
  modernization of its device drivers this time around, which
  unfortunately is also the cause for the churn and a lot of the merge
  conflicts.

  There is one new subsystem that gets merged as part of this series:
  the reset controller interface, which is a very simple interface for
  taking devices on the SoC out of reset or back into reset.  Patches to
  use this interface on i.MX follow later in this merge window, and we
  are going to have other platforms (at least tegra and sirf) get
  converted in 3.11.  This will let us get rid of platform specific
  callbacks in a number of platform independent device drivers."

* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (256 commits)
  irqchip: s3c24xx: add missing __init annotations
  ARM: dts: Disable the RTC by default on exynos5
  clk: exynos5250: Fix parent clock for sclk_mmc{0,1,2,3}
  ARM: exynos: restore mach/regs-clock.h for exynos5
  clocksource: exynos_mct: fix build error on non-DT
  pinctrl: vt8500: wmt: Fix checking return value of pinctrl_register()
  irqchip: vt8500: Convert arch-vt8500 to new irqchip infrastructure
  reset: NULL deref on allocation failure
  reset: Add reset controller API
  dt: describe base reset signal binding
  ARM: EXYNOS: Add arm-pmu DT binding for exynos421x
  ARM: EXYNOS: Add arm-pmu DT binding for exynos5250
  ARM: EXYNOS: Enable PMUs for exynos4
  irqchip: exynos-combiner: Correct combined IRQs for exynos4
  irqchip: exynos-combiner: Add set_irq_affinity function for combiner_irq
  ARM: EXYNOS: fix compilation error introduced due to common clock migration
  clk: exynos5250: Fix divider values for sclk_mmc{0,1,2,3}
  clk: exynos4: export clocks required for fimc-is
  clk: samsung: Fix compilation error
  clk: tegra: fix enum tegra114_clk to match binding
  ...

Documentation/devicetree/bindings/bus/ti-gpmc.txt

@@ -35,36 +35,83 @@ Required properties:
 
 Timing properties for child nodes. All are optional and default to 0.
 
- - gpmc,sync-clk:	Minimum clock period for synchronous mode, in picoseconds
-
- Chip-select signal timings corresponding to GPMC_CONFIG2:
- - gpmc,cs-on:		Assertion time
- - gpmc,cs-rd-off:	Read deassertion time
- - gpmc,cs-wr-off:	Write deassertion time
-
- ADV signal timings corresponding to GPMC_CONFIG3:
- - gpmc,adv-on:		Assertion time
- - gpmc,adv-rd-off:	Read deassertion time
- - gpmc,adv-wr-off:	Write deassertion time
-
- WE signals timings corresponding to GPMC_CONFIG4:
- - gpmc,we-on:		Assertion time
- - gpmc,we-off:		Deassertion time
-
- OE signals timings corresponding to GPMC_CONFIG4:
- - gpmc,oe-on:		Assertion time
- - gpmc,oe-off:		Deassertion time
-
- Access time and cycle time timings corresponding to GPMC_CONFIG5:
- - gpmc,page-burst-access: Multiple access word delay
- - gpmc,access:		Start-cycle to first data valid delay
- - gpmc,rd-cycle:	Total read cycle time
- - gpmc,wr-cycle:	Total write cycle time
+ - gpmc,sync-clk-ps:	Minimum clock period for synchronous mode, in picoseconds
+
+ Chip-select signal timings (in nanoseconds) corresponding to GPMC_CONFIG2:
+ - gpmc,cs-on-ns:	Assertion time
+ - gpmc,cs-rd-off-ns:	Read deassertion time
+ - gpmc,cs-wr-off-ns:	Write deassertion time
+
+ ADV signal timings (in nanoseconds) corresponding to GPMC_CONFIG3:
+ - gpmc,adv-on-ns:	Assertion time
+ - gpmc,adv-rd-off-ns:	Read deassertion time
+ - gpmc,adv-wr-off-ns:	Write deassertion time
+
+ WE signals timings (in nanoseconds) corresponding to GPMC_CONFIG4:
+ - gpmc,we-on-ns	Assertion time
+ - gpmc,we-off-ns:	Deassertion time
+
+ OE signals timings (in nanoseconds) corresponding to GPMC_CONFIG4:
+ - gpmc,oe-on-ns:	Assertion time
+ - gpmc,oe-off-ns:	Deassertion time
+
+ Access time and cycle time timings (in nanoseconds) corresponding to
+ GPMC_CONFIG5:
+ - gpmc,page-burst-access-ns: 	Multiple access word delay
+ - gpmc,access-ns:		Start-cycle to first data valid delay
+ - gpmc,rd-cycle-ns:		Total read cycle time
+ - gpmc,wr-cycle-ns:		Total write cycle time
+ - gpmc,bus-turnaround-ns:	Turn-around time between successive accesses
+ - gpmc,cycle2cycle-delay-ns:	Delay between chip-select pulses
+ - gpmc,clk-activation-ns: 	GPMC clock activation time
+ - gpmc,wait-monitoring-ns:	Start of wait monitoring with regard to valid
+				data
+
+Boolean timing parameters. If property is present parameter enabled and
+disabled if omitted:
+ - gpmc,adv-extra-delay:	ADV signal is delayed by half GPMC clock
+ - gpmc,cs-extra-delay:		CS signal is delayed by half GPMC clock
+ - gpmc,cycle2cycle-diffcsen:	Add "cycle2cycle-delay" between successive
+				accesses to a different CS
+ - gpmc,cycle2cycle-samecsen:	Add "cycle2cycle-delay" between successive
+				accesses to the same CS
+ - gpmc,oe-extra-delay:		OE signal is delayed by half GPMC clock
+ - gpmc,we-extra-delay:		WE signal is delayed by half GPMC clock
+ - gpmc,time-para-granularity:	Multiply all access times by 2
 
 The following are only applicable to OMAP3+ and AM335x:
- - gpmc,wr-access
- - gpmc,wr-data-mux-bus
-
+ - gpmc,wr-access-ns:		In synchronous write mode, for single or
+				burst accesses, defines the number of
+				GPMC_FCLK cycles from start access time
+				to the GPMC_CLK rising edge used by the
+				memory device for the first data capture.
+ - gpmc,wr-data-mux-bus-ns:	In address-data multiplex mode, specifies
+				the time when the first data is driven on
+				the address-data bus.
+
+GPMC chip-select settings properties for child nodes. All are optional.
+
+- gpmc,burst-length	Page/burst length. Must be 4, 8 or 16.
+- gpmc,burst-wrap	Enables wrap bursting
+- gpmc,burst-read	Enables read page/burst mode
+- gpmc,burst-write	Enables write page/burst mode
+- gpmc,device-nand	Device is NAND
+- gpmc,device-width	Total width of device(s) connected to a GPMC
+			chip-select in bytes. The GPMC supports 8-bit
+			and 16-bit devices and so this property must be
+			1 or 2.
+- gpmc,mux-add-data	Address and data multiplexing configuration.
+			Valid values are 1 for address-address-data
+			multiplexing mode and 2 for address-data
+			multiplexing mode.
+- gpmc,sync-read	Enables synchronous read. Defaults to asynchronous
+			is this is not set.
+- gpmc,sync-write	Enables synchronous writes. Defaults to asynchronous
+			is this is not set.
+- gpmc,wait-pin		Wait-pin used by client. Must be less than
+			"gpmc,num-waitpins".
+- gpmc,wait-on-read	Enables wait monitoring on reads.
+- gpmc,wait-on-write	Enables wait monitoring on writes.
 
 Example for an AM33xx board: