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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2015-07-06 17:29:00 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-07-06 17:42:45 +0200 |
| commit | 68872eb9b19bbd85883262a4e0927b487653816c (patch) | |
| tree | 9a6dbf6b98ae7141d4a6e978f1bb218465a4ddbe /arch/x86/include/asm/pmc_atom.h | |
| parent | 1c4c7159ed2468f3ac4ce5a7f08d79663d381a93 (diff) | |
| download | op-kernel-dev-68872eb9b19bbd85883262a4e0927b487653816c.zip op-kernel-dev-68872eb9b19bbd85883262a4e0927b487653816c.tar.gz | |
x86/platform/intel/pmc_atom: Export accessors to PMC registers
Export the pmc_atom_read() and pmc_atom_write() accessors to the PMC
registers. On early initcall stages the functions will return
-ENODEV, and caller has to wait when it will be available.
Additionally make absence of debugfs a non-fatal error.
The patch will be useful for the upcoming fixes regarding to the
LPSS block found on Intel BayTrail-T and Braswell.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Aubrey Li <aubrey.li@linux.intel.com>
Cc: Kumar P Mahesh <mahesh.kumar.p@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1436192944-56496-2-git-send-email-andriy.shevchenko@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/pmc_atom.h')
| -rw-r--r-- | arch/x86/include/asm/pmc_atom.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pmc_atom.h b/arch/x86/include/asm/pmc_atom.h index bc0fc08..6ee2200 100644 --- a/arch/x86/include/asm/pmc_atom.h +++ b/arch/x86/include/asm/pmc_atom.h @@ -126,4 +126,8 @@ #define SLEEP_TYPE_MASK 0xFFFFECFF #define SLEEP_TYPE_S5 0x1C00 #define SLEEP_ENABLE 0x2000 + +extern int pmc_atom_read(int offset, u32 *value); +extern int pmc_atom_write(int offset, u32 value); + #endif /* PMC_ATOM_H */ |
