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platform/chrome: cros_ec_lpc: add quirks for the Framework Laptop (AMD)

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The original Framework Laptop 13 platform (Intel 11th, 12th, and 13th
Generation at this time) uses a Microchip embedded controller in a
standard configuration.

The newer devices in this product line--Framework Laptop 13 and 16 (AMD
Ryzen)--use a NPCX embedded controller. However, they deviate from the
configuration of ChromeOS platforms built with the NPCX EC.

* The MMIO region for EC memory begins at port 0xE00 rather than the
  expected 0x900.

cros_ec_lpc's quirks system is used to address this issue.

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/20240403004713.130365-5-dustin@howett.net
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
This commit is contained in:
Dustin L. Howett 2024-04-02 19:47:13 -05:00 committed by Tzung-Bi Shih
parent e4dbf9d65e
commit c8f460d991
1 changed files with 15 additions and 1 deletions
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16
drivers/platform/chrome/cros_ec_lpc.c
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@ -527,6 +527,11 @@ static const struct acpi_device_id cros_ec_lpc_acpi_device_ids[] = {
};
MODULE_DEVICE_TABLE(acpi, cros_ec_lpc_acpi_device_ids);
static const struct lpc_driver_data framework_laptop_amd_lpc_driver_data __initconst = {
.quirks = CROS_EC_LPC_QUIRK_REMAP_MEMORY,
.quirk_mmio_memory_base = 0xE00,
};
static const struct dmi_system_id cros_ec_lpc_dmi_table[] __initconst = {
{
/*
@ -581,7 +586,16 @@ static const struct dmi_system_id cros_ec_lpc_dmi_table[] __initconst = {
},
/* A small number of non-Chromebook/box machines also use the ChromeOS EC */
{
/* the Framework Laptop */
/* the Framework Laptop 13 (AMD Ryzen) and 16 (AMD Ryzen) */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Framework"),
DMI_MATCH(DMI_PRODUCT_NAME, "AMD Ryzen"),
DMI_MATCH(DMI_PRODUCT_FAMILY, "Laptop"),
},
.driver_data = (void *)&framework_laptop_amd_lpc_driver_data,
},
{
/* the Framework Laptop (Intel 11th, 12th, 13th Generation) */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Framework"),
DMI_MATCH(DMI_PRODUCT_NAME, "Laptop"),