[PATCH v2 5/5] platform/chrome: cros_ec_lpc: Add quirks for Framework Laptop

From: Ben Walsh
Date: Mon Jun 03 2024 - 02:39:45 EST


For Framework Laptops with Microchip EC (MEC), use the ACPI id
"PNP0C09" to find the ACPI device, and AML mutex "ECMT" to protect EC
memory access.

Signed-off-by: Ben Walsh <ben@xxxxxxxxxx>
---
drivers/platform/chrome/cros_ec_lpc.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c
index 60627c5a596b..bebf76404512 100644
--- a/drivers/platform/chrome/cros_ec_lpc.c
+++ b/drivers/platform/chrome/cros_ec_lpc.c
@@ -634,6 +634,12 @@ static const struct lpc_driver_data framework_laptop_amd_lpc_driver_data __initc
.quirk_mmio_memory_base = 0xE00,
};

+static const struct lpc_driver_data framework_laptop_11_lpc_driver_data __initconst = {
+ .quirks = CROS_EC_LPC_QUIRK_ACPI_ID|CROS_EC_LPC_QUIRK_AML_MUTEX,
+ .quirk_acpi_id = "PNP0C09",
+ .quirk_aml_mutex_name = "ECMT",
+};
+
static const struct dmi_system_id cros_ec_lpc_dmi_table[] __initconst = {
{
/*
@@ -702,6 +708,7 @@ static const struct dmi_system_id cros_ec_lpc_dmi_table[] __initconst = {
DMI_MATCH(DMI_SYS_VENDOR, "Framework"),
DMI_MATCH(DMI_PRODUCT_NAME, "Laptop"),
},
+ .driver_data = (void *)&framework_laptop_11_lpc_driver_data,
},
{ /* sentinel */ }
};
--
2.45.1