platform/chrome: cros_ec_lpc: add a "quirks" system

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Some devices ship a ChromeOS EC in a non-standard configuration. Quirks
allow cros_ec_lpc to account for these non-standard configurations.

It only supports one quirk right now:
- CROS_EC_LPC_QUIRK_REMAP_MEMORY: use a different port I/O base for
  MMIO to the EC's memory region

Signed-off-by: Dustin L. Howett <dustin@howett.net>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Tested-by: Thomas Weißschuh <linux@weissschuh.net>
Tested-by: Mario Limonciello <superm1@gmail.com>
Link: https://lore.kernel.org/r/20240403004713.130365-4-dustin@howett.net
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>

...

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Dustin L. Howett 2024-04-02 19:47:12 -05:00 • committed by Tzung-Bi Shih

parent c0e6ba2d0b

commit e4dbf9d65e

1 changed files with 31 additions and 0 deletions

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drivers/platform/chrome/cros_ec_lpc.c

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