linux-stable.git/include/linux/clk-provider.h, branch v4.3.6

clk: Constify clk_hw argument to provider APIs

2015-08-24T23:49:11+00:00

We don't modify the clk_hw argument in these functions, so it's
safe to mark it as const.

Signed-off-by: Stephen Boyd

clk: Remove unused provider APIs

2015-08-24T23:49:02+00:00

Remove these APIs now that we've converted all users to the
replacement struct clk_hw based versions.

Signed-off-by: Stephen Boyd

clk: Add clk_hw_*() APIs for use by clk providers

2015-08-24T23:48:42+00:00

clk providers shouldn't need to use the consumer APIs (clk.h).
Add provider APIs to replace the __clk_*() APIs that take a
struct clk_hw as their first argument instead of a struct clk.

Signed-off-by: Stephen Boyd

clk: gpio: Mark parent_names array const

2015-07-28T18:59:24+00:00

Let's encourage const arrays of parent names like other basic
clock types.

Cc: Sergej Sawazki 
Signed-off-by: Stephen Boyd

clk: allow a clk divider with max divisor when zero

2015-07-28T18:59:19+00:00

This commit allows certain Broadcom STB clock dividers to be used with
clk-divider.c.  It allows for a clock whose field value is the equal
to the divisor, execpt when the field value is zero, in which case the
divisor is 2^width.  For example, consider a divisor clock with a two
bit field:

value		divisor
0		4
1		1
2		2
3		3

Signed-off-by: Jim Quinlan 
Signed-off-by: Michael Turquette

Merge branch 'cleanup-clk-h-includes' into clk-next

2015-07-28T18:59:09+00:00

* cleanup-clk-h-includes: (62 commits)
  clk: Remove clk.h from clk-provider.h
  clk: h8300: Remove clk.h and clkdev.h includes
  clk: at91: Include clk.h and slab.h
  clk: ti: Switch clk-provider.h include to clk.h
  clk: pistachio: Include clk.h
  clk: ingenic: Include clk.h
  clk: si570: Include clk.h
  clk: moxart: Include clk.h
  clk: cdce925: Include clk.h
  clk: Include clk.h in clk.c
  clk: zynq: Include clk.h
  clk: ti: Include clk.h
  clk: sunxi: Include clk.h and remove unused clkdev.h includes
  clk: st: Include clk.h
  clk: qcom: Include clk.h
  clk: highbank: Include clk.h
  clk: bcm: Include clk.h
  clk: versatile: Remove clk.h and clkdev.h includes
  clk: ux500: Remove clk.h and clkdev.h includes
  clk: tegra: Properly include clk.h
  ...

clk: Allow providers to configure min/max rates

2015-07-28T18:58:50+00:00

clk providers are using the consumer APIs to set min/max rates on
the clock they're providing. To encourage clk providers to move
away from the consumer APIs, add a provider API to set the
min/max rate of a clock. The assumption is that this is done
before the clock can be requested via clk_get() and that the
clock rate is already within the boundaries of the min/max that's
configured.

Tested-by: Sudeep Holla 
Signed-off-by: Stephen Boyd

Merge branch 'clk-determine-rate-struct' into clk-next

2015-07-28T18:51:30+00:00

* clk-determine-rate-struct:
  clk: fix some determine_rate implementations
  clk: change clk_ops' ->determine_rate() prototype

clk: change clk_ops' ->determine_rate() prototype

2015-07-28T01:12:01+00:00

Clock rates are stored in an unsigned long field, but ->determine_rate()
(which returns a rounded rate from a requested one) returns a long
value (errors are reported using negative error codes), which can lead
to long overflow if the clock rate exceed 2Ghz.

Change ->determine_rate() prototype to return 0 or an error code, and pass
a pointer to a clk_rate_request structure containing the expected target
rate and the rate constraints imposed by clk users.

The clk_rate_request structure might be extended in the future to contain
other kind of constraints like the rounding policy, the maximum clock
inaccuracy or other things that are not yet supported by the CCF
(power consumption constraints ?).

Signed-off-by: Boris Brezillon 
CC: Jonathan Corbet 
CC: Tony Lindgren 
CC: Ralf Baechle 
CC: "Emilio López" 
CC: Maxime Ripard 
Acked-by: Tero Kristo 
CC: Peter De Schrijver 
CC: Prashant Gaikwad 
CC: Stephen Warren 
CC: Thierry Reding 
CC: Alexandre Courbot 
CC: linux-doc@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
CC: linux-omap@vger.kernel.org
CC: linux-mips@linux-mips.org
CC: linux-tegra@vger.kernel.org
[sboyd@codeaurora.org: Fix parent dereference problem in
__clk_determine_rate()]
Signed-off-by: Stephen Boyd 
Tested-by: Romain Perier 
Signed-off-by: Heiko Stuebner 
[sboyd@codeaurora.org: Folded in fix from Heiko for fixed-rate
clocks without parents or a rate determining op]
Signed-off-by: Stephen Boyd

clk: Remove clk.h from clk-provider.h

2015-07-20T18:11:42+00:00

Remove clk.h from clk-provider.h so that we can clearly split clk
providers from clk consumers. This will allow us to quickly
detect when clock providers are using the consumer APIs by
looking at the includes.

Signed-off-by: Stephen Boyd