Data is 2-byte per entry for PMIC read-modify-update command.
Signed-off-by: NHong Liu <hong.liu@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Don't pass more bytes in the command length field than we filled.
Signed-off-by: NAndy Ross <andy.ross@windriver.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

some messages take 4 bytes, but only fill 3 bytes....
this patch makes sure that whatever we send to the SCU is zeroed first
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

The stack buffer for IPC messages was 16 bytes, limiting messages to a
size of 4 (each message is 32 bit).
However, the touch screen driver is trying to send messages of size 5....

(AC: Set to 20 bytes having checked the max size allowed)
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

This provides an architecture level board identify function to replace the
cpuid direct usage
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Delete unused constants IPC_CMD_INDIRECT_RD and IPC_CMD_INDIRECT_WR
Remove multiple inclusion of header file "asm/mrst.h"
Signed-off-by: NSreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

The firmware of production devices does not support this interface so this
is dead code.
Signed-off-by: NSreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Changes to work on bothMmoorestown and Medfield
New pci id added for Medfield
Return type of ipc_data_readl chnaged from u8 to u32
Signed-off-by: NSreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Intel SCU message formats depend upon the processor type. Replace the
module option with automatic detection of the processor type.
Signed-off-by: NSreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

- fix reversing of command/sub arguments
- fix a crash if the i2c interface is called before the device is found
Signed-off-by: NSreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Commands with data must set the length in the message.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The IPC (inter processor communications) is used to provide the
communications between kernel and system control units on some embedded
Intel x86 platforms.

(Various bits of clean up and restructuring by Alan Cox)
Signed-off-by: NSreedhara DS <sreedhara.ds@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>