Commit Graph

17 Commits

Author SHA1 Message Date
H Hartley Sweeten
6536560cab Staging: dt3155: fix 50Hz configuration
According to the header file, dt3155_io.h, the 50/60 Hz configuration
is controlled by a bit in the I2C CSR2 register (bit 2).  The function
dt3155_init_isr actually reads the I2C CONFIG register into the global
I2C_CSR union variable then modifies the bit.  It then does a write
to the I2C CONFIG register with the global I2C_CONFIG union variable
which is not even set with a value anywhere in the driver.

My guess is 50Hz operation doesn't even work as-is.

Fix this by actually reading and writing the correct register with
the correct value.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:30:10 -07:00
Randy Dunlap
74a920139a staging: fix dt3155 build
When the dt3155 driver is built-in (not as a loadable module),
these build errors happen:

  drivers/staging/dt3155/dt3155_drv.c:1047: error: implicit declaration of function 'request_irq'
  drivers/staging/dt3155/dt3155_drv.c:1048: error: 'IRQF_SHARED' undeclared (first use in this function)
  drivers/staging/dt3155/dt3155_drv.c:1048: error: 'IRQF_DISABLED' undeclared (first use in this function)
  drivers/staging/dt3155/dt3155_drv.c:1091: error: implicit declaration of function 'free_irq'

so remove the #ifdef MODULE check since it's not needed.  Also remove
the CONFIG_PCI check since the Kconfig file already requires that.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Scott Smedley <ss@aao.gov.au>
Tested-by: Jan III Sobieski <jan3sobi3ski@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-22 07:20:00 -07:00
Tejun Heo
5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
H Hartley Sweeten
3a8954e8f2 staging: dt3155: revert u_long to u64 usage
Commit 9c1390a923ddb6fba1cf9d7440743369140c6d8a replaced
all u_int's with u32 and u_long's with u64. Unfortunately, a u_long
is still only 32-bits so they should have been replaced with u32 also.

This can be verified by the register definitions in dt3155_io.h.  It
specifically states that the memory mapped registers are 32-bit.

Fix this by changing all the u64 to u32.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:07 -08:00
Greg Kroah-Hartman
ef97e4ef15 Staging: dt3155: fix coding style issues in dt3155_io.c
This fixes up the sparse and coding style issues found in the
dt3155_io.c file.

No code is changed, only formatting and removing unused code.

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:56 -08:00
Greg Kroah-Hartman
dcff74ce8b Staging: dt3155: replace u_int and u_long usage
Use u32 and u64 instead, that's the proper thing to do.

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:56 -08:00
Greg Kroah-Hartman
5d3921117d Staging: dt3155: replace u_char usage
Use u8 instead, that's the proper thing to do.

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:56 -08:00
Greg Kroah-Hartman
062d164719 Staging: dt3155: coding cleanups for dt3155_io.h
This fixes up some coding style issues in the dt3155_io.h file

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:56 -08:00
Greg Kroah-Hartman
f721ad7a9c Staging: dt3155: fix build warnings
This fixes the build warnings in the dt3155 driver

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:56 -08:00
Simon Horman
2141ec629c Staging: dt3155: remove compat code
Remove compatibility code as this is not an older version of the kernel.

Signed-off-by: Simon Horman <horms@verge.net.au>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:38 -08:00
Simon Horman
6910dadf3f Staging: DT3155: Use pci_get_device()
The use of pci_find_device() is deprecated.

Signed-off-by: Simon Horman <horms@verge.net.au>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:37 -08:00
Greg Kroah-Hartman
8c6356e2a5 Staging: dt3155: coding style cleanups for the .h files
This cleans up some of the coding style issues in the .h files.

More remains to be done.

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:33 -08:00
Greg Kroah-Hartman
1769fd86e1 Staging: dt3155: coding style cleanups for allocator code
This fixes up the worst of the coding style errors for the
allocator code.

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:33 -08:00
Greg Kroah-Hartman
293c0db0dd Staging: dt3155: add it to the build
Now it will build with the rest of the kernel

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:31 -08:00
Greg Kroah-Hartman
bad9f950c0 Staging: dt3155: add TODO file
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:31 -08:00
Greg Kroah-Hartman
ae7fd7b818 Staging: dt3155: add needed #include
This is needed so the code properly builds

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:31 -08:00
Scott Smedley
aa337ef1fb Staging: add dt3155 driver
This is a driver for the DT3155 Digitizer

Signed-off-by: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:31 -08:00