linux.git/drivers/clk/mmp, branch v4.5

clk: mmp: stop using platform headers

2015-12-01T20:44:22+00:00

The mmp clock drivers currently hardcode the physical addresses for
the clock registers. This is generally a bad idea, and it also gets in
the way of multiplatform builds, which make the platform header files
inaccessible to device drivers.

To work around the header file problem, this patch changes the calling
convention so the three mmp clock drivers get initialized with the base
addresses as arguments from the platform code.

It would still be useful to have a larger rework of the clock drivers,
with DT integration to let the clocks actually be probed automatically,
and the base addresses passed as DT properties. I am unsure if anyone
is still interested in the mmp platform, so it is possible that this
won't happen.

Signed-off-by: Arnd Bergmann 
Cc: Mike Turquette 
Cc: Chao Xie 
Cc: Eric Miao 
Cc: Haojian Zhuang

clk: mmp: Convert to clk_hw based provider APIs

2015-08-24T23:48:49+00:00

We're removing struct clk from the clk provider API, so switch
this code to using the clk_hw based provider APIs.

Cc: Chao Xie 
Signed-off-by: Stephen Boyd

clk: Replace __clk_get_num_parents with clk_hw_get_num_parents()

2015-08-24T23:48:43+00:00

Mostly converted with the following semantic patch:

@@
struct clk_hw *E;
@@

-__clk_get_num_parents(E->clk)
+clk_hw_get_num_parents(E)

Acked-by: Boris Brezillon 
Cc: Chao Xie 
Cc: Krzysztof Kozlowski 
Cc: Javier Martinez Canillas 
Cc: Tomasz Figa 
Cc: Maxime Ripard 
Cc: "Emilio López" 
Acked-by: Tero Kristo 
Cc: Geert Uytterhoeven 
Acked-by: Sylwester Nawrocki 
Signed-off-by: Stephen Boyd

clk/mmp: use kmemdup rather than duplicating its implementation

2015-08-07T22:16:28+00:00

The patch was generated using fixed coccinelle semantic patch
scripts/coccinelle/api/memdup.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2014320

Signed-off-by: Andrzej Hajda 
Signed-off-by: Stephen Boyd

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: fix some determine_rate implementations

2015-07-28T01:13:32+00:00

Some determine_rate implementations are not returning an error
when they failed to adapt the rate according to the rate request.
Fix them so that they return an error instead of silently
returning 0.

Signed-off-by: Boris Brezillon 
CC: Jonathan Corbet 
CC: Tony Lindgren 
CC: Ralf Baechle 
CC: "Emilio López" 
CC: Maxime Ripard 
Cc: 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
Signed-off-by: Stephen Boyd

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: mmp: Remove clk.h include

2015-07-20T17:53:12+00:00

Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Remove the include here because this is a
provider driver. The clkdev.h include isn't used either, so drop
it and add in slab.h to keep things compiling.

Cc: Chao Xie 
Signed-off-by: Stephen Boyd

clk: mmp: add timer clock for pxa168/mmp2/pxa910

2015-06-04T19:07:53+00:00

Timer has external fast clock, and it is a mux clock.
Add the timer clock type for timer driver.

Signed-off-by: Chao Xie 
Signed-off-by: Stephen Boyd

clk: mmp: Fix the wrong factor table for uart PLL

2015-06-04T19:07:49+00:00

The suggested value in the mmp2 manual is wrong.
There are only 13 bits for numerator, but some suggested
value has 14 bits.
Fix the factor tabled and remove the unused items.

Signed-off-by: Chao Xie 
Signed-off-by: Stephen Boyd