linux.git/arch/sh/kernel/cpu/sh4, branch v4.11

sched/headers: Move task_struct::signal and task_struct::sighand types and accessors into

2017-03-03T00:43:37+00:00

task_struct::signal and task_struct::sighand are pointers, which would normally make it
straightforward to not define those types in sched.h.

That is not so, because the types are accompanied by a myriad of APIs (macros and inline
functions) that dereference them.

Split the types and the APIs out of sched.h and move them into a new header, .

With this change sched.h does not know about 'struct signal' and 'struct sighand' anymore,
trying to put accessors into sched.h as a test fails the following way:

  ./include/linux/sched.h: In function ‘test_signal_types’:
  ./include/linux/sched.h:2461:18: error: dereferencing pointer to incomplete type ‘struct signal_struct’
                    ^

This reduces the size and complexity of sched.h significantly.

Update all headers and .c code that relied on getting the signal handling
functionality from  to include .

The list of affected files in the preparatory patch was partly generated by
grepping for the APIs, and partly by doing coverage build testing, both
all[yes|mod|def|no]config builds on 64-bit and 32-bit x86, and an array of
cross-architecture builds.

Nevertheless some (trivial) build breakage is still expected related to rare
Kconfig combinations and in-flight patches to various kernel code, but most
of it should be handled by this patch.

Acked-by: Linus Torvalds 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar

serial: sh-sci: Compute the regshift value for SCI ports

2017-01-19T13:17:05+00:00

SCI instances found in SH SoCs have different spacing between registers
depending on the SoC. The platform data contains a regshift field that
tells the driver by how many bits to shift the register offset to
compute its address. We can compute the regshift value automatically
based on the memory resource size, there's no need to pass the value
through platform data.

Fix the sh7750 SCI and sh7760 SIM port memory resources length to ensure
proper computation of the regshift value.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

sh: Don't set the sh-sci platform data REIE bit when not implemented

2017-01-19T13:17:05+00:00

According to the datasheets, the sh7760 SIM and sh7723 SCIFA instances
don't implement the REIE bit. Don't set it in platform data.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

sh: Don't set sh-sci port_reg

2017-01-19T13:17:05+00:00

The driver considers all negative or zero values of the port_reg field
as invalid. The four platforms that set the field to a register address
all use an address higher than 0x7fffffff, which is thus considered by
the driver as invalid. The feature is thus never used, remove it.

The feature could be implemented properly in the future using the
pinctrl and GPIO APIs if desired.

While at it, don't set the field to SCIx_NOT_SUPPORTED (-1) either,
leaving it unset leads to the same result. This will allow removing the
SCIx_NOT_SUPPORTED macro.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

sh: Don't set the sh-sci pdata UPF_BOOT_AUTOCONF flags

2017-01-19T13:17:05+00:00

The flag is set by the driver internally, don't set it in platform data.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

sh: Don't set sh-sci pdata scscr TE and RE bits

2017-01-19T13:17:04+00:00

The bits are set by the driver internally, don't set them in platform
data.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

bus: subsys: update return type of ->remove_dev() to void

2015-08-06T00:08:14+00:00

Its return value is not used by the subsys core and nothing meaningful
can be done with it, even if we want to use it. The subsys device is
anyway getting removed.

Update prototype of ->remove_dev() to make its return type as void. Fix
all usage sites as well.

Signed-off-by: Viresh Kumar 
Signed-off-by: Greg Kroah-Hartman

sh: Switch to new style TMU device

2014-05-11T10:35:27+00:00

The TMU (Timer Unit) driver implements a new style of platform data that
handles the timer as a single device with multiple channel. Switch from
the old-style platform data to the new-style platform data.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Simon Horman

sh: Don't set plat_sci_port scbrr_algo_id field

2013-12-24T12:49:43+00:00

The field will be removed from the sh-sci driver. Don't set it and let
the driver handle baud rate calculation internally.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Simon Horman

sh: Declare SCIF register base and IRQ as resources

2013-12-24T12:49:43+00:00

Passing the register base address and IRQ through platform data is
deprecated. Use resources instead.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Simon Horman