linux.git/drivers/soc/dove, branch v4.12

soc: dove: constify reset_control_ops structures

2017-01-27T16:52:57+00:00

Declare reset_control_ops as const as they are only stored in the ops
field of a reset_controller_dev structure. This field is of type const
struct reset_control_ops *, so reset_control_ops structures having this
property can be declared as const.
Done using Coccinelle:

@r1 disable optional_qualifier@
identifier i;
position p;
@@
static struct reset_control_ops i@p={...};

@ok1@
identifier r1.i;
position p;
struct reset_controller_dev x;
@@
x.ops=&i@p;

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct reset_control_ops i;

File size before: drivers/soc/dove/pmu.o
   text	   data	    bss	    dec	    hex	filename
   2447	    112	     16	   2575	    a0f	drivers/soc/dove/pmu.o

File size after: drivers/soc/dove/pmu.o
   text	   data	    bss	    dec	    hex	filename
   2479	     80	     16	   2575	    a0f	drivers/soc/dove/pmu.o

Signed-off-by: Bhumika Goyal 
Acked-by: Russell King 
Signed-off-by: Gregory CLEMENT

soc: dove: add legacy support to PMU driver

2015-12-08T12:19:29+00:00

Add support for legacy non-DT Dove to the PMU driver, so that we can
transition the legacy support over.

[gregory.clement@free-electrons.com: removed pm_genpd_poweroff_unused]
Acked-by: Arnd Bergmann 
Signed-off-by: Russell King 
Signed-off-by: Gregory CLEMENT

soc: dove: Let genpd deal with disabling of unused PM domains

2015-10-12T21:27:01+00:00

Genpd tries from a late_initcall to disable unused PM domains, which makes
it unnecessary to also manage this from any earlier phase when for example
initializing a genpd.

Signed-off-by: Ulf Hansson 
Signed-off-by: Rafael J. Wysocki

genirq: Remove irq argument from irq flow handlers

2015-09-16T13:47:51+00:00

Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu

soc: dove: Prepare irq handler for irq argument removal

2015-09-14T08:30:05+00:00

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu 
Cc: Gregory CLEMENT

soc: dove: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

2015-09-14T08:30:05+00:00

Search and replace done with coccinelle

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu

ARM: dove: create a proper PMU driver for power domains, PMU IRQs and resets

2015-08-05T16:36:49+00:00

The PMU device contains an interrupt controller, power control and
resets.  The interrupt controller is a little sub-standard in that
there is no race free way to clear down pending interrupts, so we try
to avoid problems by reducing the window as much as possible, and
clearing as infrequently as possible.

The interrupt support is implemented using an IRQ domain, and the
parent interrupt referenced in the standard DT way.

The power domains and reset support is closely related - there is a
defined sequence for powering down a domain which is tightly coupled
with asserting the reset.  Hence, it makes sense to group these two
together, and in order to avoid any locking contention disrupting this
sequence, we avoid the use of syscon or regmap.

This patch adds the core PMU driver: power domains must be defined in
the DT file in order to make use of them.  The reset controller can
be referenced in the standard way for reset controllers.

Signed-off-by: Russell King 
Signed-off-by: Andrew Lunn 
Signed-off-by: Gregory CLEMENT