linux-stable.git/drivers/clk/bcm, branch linux-4.3.y

clk: iproc: Fix PLL output frequency calculation

2015-12-09T19:34:25+00:00

commit 63243a4da7d0dfa19dcacd0a529782eeb2f86f92 upstream.

This patch affects the clocks that use fractional ndivider in their
PLL output frequency calculation. Instead of 2^20 divide factor, the
clock's ndiv integer shift was used. Fixed the bug by replacing ndiv
integer shift with 2^20 factor.

Signed-off-by: Simran Rai 
Signed-off-by: Ray Jui 
Reviewed-by: Scott Branden 
Fixes: 5fe225c105fd ("clk: iproc: add initial common clock support")
Signed-off-by: Michael Turquette 
Signed-off-by: Greg Kroah-Hartman

clk: bcm: Convert to clk_hw based provider APIs

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

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

Reviewed-by: Alex Elder 
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
  ...

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: bcm: Include clk.h

2015-07-20T18:11:21+00:00

This clock provider uses the consumer API, so include clk.h
explicitly.

Acked-by: Alex Elder 
Signed-off-by: Stephen Boyd

clk: iproc: fix bit manipulation arithmetic

2015-07-02T16:51:09+00:00

A 32-bit variable should be type casted to 64-bit before arithmetic
operation and assigning it to a 64-bit variable

Reported-by: Dan Carpenter 
Signed-off-by: Ray Jui 
Fixes: 5fe225c105fd ("clk: iproc: add initial common clock support")
Signed-off-by: Stephen Boyd

clk: iproc: fix memory leak from clock name

2015-07-02T16:50:26+00:00

of_property_read_string_index takes array of pointers and assign them to
strings read from device tree property. No additional memory allocation
is needed prior to calling of_property_read_string_index. In fact, since
the array of pointers will be re-assigned to other strings, any memory
that it points to prior to calling of_property_read_string_index will be
leaked

Reported-by: Dan Carpenter 
Signed-off-by: Ray Jui 
Fixes: 5fe225c105fd ("clk: iproc: add initial common clock support")
Signed-off-by: Stephen Boyd

clk: cygnus: add clock support for Broadcom Cygnus

2015-06-18T19:36:39+00:00

The Broadcom Cygnus SoC is architected under the iProc architecture. It
has the following PLLs: ARMPLL, GENPLL, LCPLL0, MIPIPLL, all dervied
from an onboard crystal. Cygnus also has various ASIU clocks that are
derived directly from the onboard crystal.

Signed-off-by: Ray Jui 
Reviewed-by: Scott Branden 
Signed-off-by: Michael Turquette

clk: iproc: add initial common clock support

2015-06-18T19:36:38+00:00

This adds basic and generic support for various iProc PLLs and clocks
including the ARMPLL, GENPLL, LCPLL, MIPIPLL, and ASIU clocks.

SoCs under the iProc architecture can define their specific register
offsets and clock parameters for their PLL and clock controllers. These
parameters can be passed as arugments into the generic iProc PLL and
clock setup functions

Derived from code originally provided by Jonathan Richardson


Signed-off-by: Ray Jui 
Reviewed-by: Scott Branden 
Signed-off-by: Michael Turquette