linux-stable.git/drivers/clk/Makefile, branch v3.5

Merge branch 'spear/clock' into next/clock

2012-05-12T22:11:06+00:00

Viresh Kumar  writes:

 This is rebased over a (merge of Mike's/clk-next & SPEAr's DT) + Russell's
 patch: CLKDEV: provide helpers for common clock framework rebased over them.

* spear/clock:
  SPEAr: Switch to common clock framework
  SPEAr: Call clk_prepare() before calling clk_enable
  SPEAr: clk: Add General Purpose Timer Synthesizer clock
  SPEAr: clk: Add Fractional Synthesizer clock
  SPEAr: clk: Add Auxiliary Synthesizer clock
  SPEAr: clk: Add VCO-PLL Synthesizer clock

Conflicts:
	drivers/clk/Makefile

[Arnd: rebased again without the spear/dt branch]

Signed-off-by: Arnd Bergmann

SPEAr: clk: Add VCO-PLL Synthesizer clock

2012-05-12T19:19:23+00:00

All SPEAr SoC's contain PLLs. Their Fout is derived based on following equations

- In normal mode
  vco = (2 * M[15:8] * Fin)/N

- In Dithered mode
  vco = (2 * M[15:0] * Fin)/(256 * N)

pll_rate = vco/2^p

vco and pll are very closely bound to each other,
"vco needs to program: mode, m & n" and "pll needs to program p",
both share common enable/disable logic and registers.

This patch adds in support for this type of clock.

Signed-off-by: Viresh Kumar 
Reviewed-by: Mike Turquette

Merge branch 'clk/mxs' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/clock

2012-05-11T15:15:31+00:00

Shawn Guo  writes:

  mxs common clk porting for v3.5.  It depends on the following two branches.

  [1] git://git.linaro.org/people/mturquette/linux.git clk-next
  [2] http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-arm.git clkdev

  As the mxs device tree conversion will constantly touch clock files,
  to save the conflicts, the updated mxs/dt branch coming later will
  based on this pull-request.

* 'clk/mxs' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: mxs: remove now unused timer_clk argument from mxs_timer_init
  ARM: mxs: remove old clock support
  ARM: mxs: switch to common clk framework
  ARM: mxs: change the lookup name for fec phy clock
  ARM: mxs: request clock for timer
  clk: mxs: add clock support for imx28
  clk: mxs: add clock support for imx23
  clk: mxs: add mxs specific clocks

Includes an update to Linux 3.4-rc6

Conflicts:
	drivers/clk/Makefile

Signed-off-by: Arnd Bergmann

clk: add a fixed factor clock

2012-05-08T21:13:25+00:00

Having fixed factors/dividers in hardware is a common pattern, so
add a basic clock type doing this. It basically describes a fixed
factor clock using a nominator and a denominator.

Signed-off-by: Sascha Hauer 
Reviewed-by: Viresh Kumar 
Tested-by: Shawn Guo 
[mturquette@linaro.org: constify parent_names in static init macro]
[mturquette@linaro.org: copy/paste bug from mux in static init macro]
[mturquette@linaro.org: fix error handling in clk_register_fixed_factor]
[mturquette@linaro.org: improve division accuracy; thanks to Saravana]
Signed-off-by: Mike Turquette

ARM: mxs: switch to common clk framework

2012-05-08T16:02:41+00:00

It switches mxs clock support to common clk framework based drivers.

Signed-off-by: Shawn Guo

clk: basic clock hardware types

2012-03-16T20:35:02+00:00

Many platforms support simple gateable clocks, fixed-rate clocks,
adjustable divider clocks and multi-parent multiplexer clocks.

This patch introduces basic clock types for the above-mentioned hardware
which share some common characteristics.

Based on original work by Jeremy Kerr and contribution by Jamie Iles.
Dividers and multiplexor clocks originally contributed by Richard Zhao &
Sascha Hauer.

Signed-off-by: Mike Turquette 
Signed-off-by: Mike Turquette 
Reviewed-by: Andrew Lunn 
Tested-by: Andrew Lunn 
Reviewed-by: Rob Herring 
Cc: Russell King 
Cc: Jeremy Kerr 
Cc: Thomas Gleixner 
Cc: Arnd Bergman 
Cc: Paul Walmsley 
Cc: Shawn Guo 
Cc: Sascha Hauer 
Cc: Jamie Iles 
Cc: Richard Zhao 
Cc: Saravana Kannan 
Cc: Magnus Damm 
Cc: Mark Brown 
Cc: Linus Walleij 
Cc: Stephen Boyd 
Cc: Amit Kucheria 
Cc: Deepak Saxena 
Cc: Grant Likely 
Signed-off-by: Arnd Bergmann

clk: introduce the common clock framework

2012-03-16T20:35:01+00:00

The common clock framework defines a common struct clk useful across
most platforms as well as an implementation of the clk api that drivers
can use safely for managing clocks.

The net result is consolidation of many different struct clk definitions
and platform-specific clock framework implementations.

This patch introduces the common struct clk, struct clk_ops and an
implementation of the well-known clock api in include/clk/clk.h.
Platforms may define their own hardware-specific clock structure and
their own clock operation callbacks, so long as it wraps an instance of
struct clk_hw.

See Documentation/clk.txt for more details.

This patch is based on the work of Jeremy Kerr, which in turn was based
on the work of Ben Herrenschmidt.

Signed-off-by: Mike Turquette 
Signed-off-by: Mike Turquette 
Reviewed-by: Thomas Gleixner 
Tested-by: Andrew Lunn 
Reviewed-by: Rob Herring  calxeda.com>
Cc: Russell King 
Cc: Jeremy Kerr 
Cc: Arnd Bergman 
Cc: Paul Walmsley 
Cc: Shawn Guo 
Cc: Sascha Hauer 
Cc: Richard Zhao 
Cc: Saravana Kannan 
Cc: Magnus Damm 
Cc: Mark Brown 
Cc: Linus Walleij 
Cc: Stephen Boyd 
Cc: Amit Kucheria 
Cc: Deepak Saxena 
Cc: Grant Likely 
Signed-off-by: Arnd Bergmann

ARM: 6483/1: arm & sh: factorised duplicated clkdev.c

2010-11-26T10:51:04+00:00

factorise some generic infrastructure to assist looking up struct clks
for the ARM & SH architecture.

as the code is identical at 99%

put the arch specific code for allocation as example in asm/clkdev.h

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD 
Acked-by: Paul Mundt 
Signed-off-by: Russell King