kernel/include/linux/mfd/lpc_ich.h, branch linux-3.17.y

mfd: lpc_ich: Add support for iTCO v3

2014-03-19T09:00:02Z

Some newer Atom CPUs, eg Avoton and Bay Trail, use slightly different register layouts for the iTCO than the current v1 and v2 iTCO. Differences from previous iTCO versions include: - The ACPI space is enabled in the "ACPI base address" register instead of the "ACPI control register" - The "no reboot" functionality is set in the "Power Management Configuration" register instead of the "General Control and Status" (GCS) register or PCI configuration space. - The "ACPI Control Register" is not present on v3. The "Power Management Configuration Base Address" register resides at the same address is Avoton/Bay Trail. To differentiate these newer chipsets create a new v3 iTCO version and update the MFD driver to support them. Signed-off-by: Peter Tyser Tested-by: Rajat Jain Reviewed-by: Guenter Roeck Signed-off-by: Lee Jones

mfd: lpc_ich: Add support for Intel Avoton GPIOs

2014-03-19T08:58:21Z

Signed-off-by: Vincent Donnefort Signed-off-by: Lee Jones

mfd: lpc_ich: Convert ICH GPIOs IDs to enum

2014-03-19T08:58:20Z

All those IDs are arbitrary and so can be encapsulated into an enumeration. Signed-off-by: Vincent Donnefort Signed-off-by: Lee Jones

gpio: gpio-ich: Share ownership of GPIO groups

2012-09-14T07:52:13Z

The ICH chips have their GPIO pins organized in 2 or 3 independent groups of 32 GPIO pins. It can happen that the ACPI BIOS wants to make use of pins in one group, preventing the OS to access these. This does not prevent the OS from accessing the other group(s). This is the case for example on my Asus Z8NA-D6 board. The ACPI BIOS wants to control GPIO 18 (group 1), while I (the OS) need to control GPIO 52 and 53 (group 2) for SMBus multiplexing. So instead of checking for ACPI resource conflict on the whole I/O range, check on a per-group basis, and consider it a success if at least one of the groups is available for the OS to use. Signed-off-by: Jean Delvare Cc: Peter Tyser Cc: Aaron Sierra Cc: Grant Likely Acked-by: Linus Walleij Signed-off-by: Samuel Ortiz

watchdog: Convert iTCO_wdt driver to mfd model

2012-05-09T15:20:09Z

This patch converts the iTCO_wdt driver to use the multi-function device driver model. It uses resources discovered by the lpc_ich driver, so that it no longer does its own PCI scanning. Signed-off-by: Aaron Sierra Signed-off-by: Guenter Roeck Signed-off-by: Samuel Ortiz

mfd: Add LPC driver for Intel ICH chipsets

2012-05-01T10:00:21Z

This driver currently creates resources for use by a forthcoming ICH chipset GPIO driver. It could be expanded to create the resources for converting the esb2rom (mtd) and iTCO_wdt (wdt), and potentially more, drivers to use the mfd model. Signed-off-by: Aaron Sierra Signed-off-by: Guenter Roeck Signed-off-by: Samuel Ortiz