There is established way to provide I²C timings, or actually counters, to the OS via ACPI. Fill them for Intel Merrifield platform.
Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com --- v2: added high speed mode counters .../asm/arch-tangier/acpi/southcluster.asl | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+)
diff --git a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl index c622783f44..6ccdc25136 100644 --- a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl +++ b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl @@ -240,6 +240,21 @@ Device (PCI0) Return (STA_VISIBLE) }
+ Name (SSCN, Package () + { + 0x02F8, 0x037B, Zero, + }) + + Name (FMCN, Package () + { + 0x0087, 0x010A, Zero, + }) + + Name (HSCN, Package () + { + 0x0008, 0x0020, Zero, + }) + Name (RBUF, ResourceTemplate() { FixedDMA(0x0009, 0x0000, Width32bit, ) @@ -260,6 +275,21 @@ Device (PCI0) { Return (STA_VISIBLE) } + + Name (SSCN, Package () + { + 0x02F8, 0x037B, Zero, + }) + + Name (FMCN, Package () + { + 0x0087, 0x010A, Zero, + }) + + Name (HSCN, Package () + { + 0x0008, 0x0020, Zero, + }) }
Device (GPIO)