[PATCH v2 0/4] platform/chrome: cros_ec_lpc: add support for AMD Framework Laptops

["Dustin L. Howett" <dustin@howett.net>]

This patch series adds support for the AMD models of the Framework
Laptop (both 13" and 16").

These models of Framework Laptop have switched to an NPCX embedded
controller, which uses the original Chrome EC linear memory-mapped I/O
model.

However, these devices are not configured in a way that is compatible
with the cros_ec driver. Instead of mapping EC memory to I/O ports
[0x900, 0x9FF], they map it to ports [0xE00, 0xEFF]. Furthermore, the
ACPI node for the embedded controller incorrectly indicates that it does
not use port 0x8FF for host commands. It does use port 0x8FF.

To address these issues without impacting cros_ec_lpcs' compatibility
with Chromebook/Chromebox devices or the existing Framework Laptop
platform, these patches add DMI match-specific driver data through
which we can detect per-machine "quirks".

Quirks toggle changes in cros_ec_lpcs' behavior, such as remapping the
memory MMIO window and reserving I/O ports differently.

Changes in v2:
* Separated Framework Laptop (Intel) and Framework Laptop (AMD)
* dev_warn has been demoted to dev_info
* Style fixes
* Reworded the individual patch bodies for clarity and style

Dustin L. Howett (4):
  platform/chrome: cros_ec_lpc: introduce a priv struct for the lpc
    device
  platform/chrome: cros_ec_lpc: pass driver_data from DMI to the device
  platform/chrome: cros_ec_lpc: add a "quirks" system
  platform/chrome: cros_ec_lpc: add quirks for the Framework Laptop
    (AMD)

 drivers/platform/chrome/cros_ec_lpc.c | 94 ++++++++++++++++++++++++---
 1 file changed, 86 insertions(+), 8 deletions(-)

-- 
2.42.0