[PATCH 02/13] platform/x86: dmi_device_properties: Add setup info for boards with a CHT Whiskey Cove PMIC

Hans de Goede
2021-10-30T18:28:30Z

Add a new "intel,cht-wc-setup" string property to the "INT34D3:00"
i2c_client for the Whiskey Cove PMIC found on several Cherry Trail
based devices. At least 3 setups are known:

1. The WC PMIC is connected to a TI BQ24292i charger, paired with
a Maxim MAX17047 fuelgauge + a FUSB302 USB Type-C Controller +
a PI3USB30532 USB switch, for a fully functional Type-C port

2. The WC PMIC is connected to a TI BQ25890 charger, paired with
a TI BQ27520 fuelgauge, for a USB-2 only Type-C port without PD

3. The WC PMIC is connected to a TI BQ25890 charger, paired with
a TI BQ27542 fuelgauge, for a micro-USB port

Which setup is in use cannot be determined reliably from the ACPI tables
and various drivers (extcon-intel-cht-wc.c, i2c-cht-wc.c, ...) need
to know which setup they are dealing with.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/platform/x86/dmi_device_properties.c | 46 ++++++++++++++++++++
1 file changed, 46 insertions(+)

diff --git a/drivers/platform/x86/dmi_device_properties.c b/drivers/platform/x86/dmi_device_properties.c
index 1bcd14a0bc78..bd973afbde5f 100644
--- a/drivers/platform/x86/dmi_device_properties.c
+++ b/drivers/platform/x86/dmi_device_properties.c
@@ -387,6 +387,16 @@ static const struct ts_dmi_data gp_electronic_t701_data = {
.properties = gp_electronic_t701_props,
};

+static const struct property_entry gpd_win_pocket_props[] = {
+ PROPERTY_ENTRY_STRING("intel,cht-wc-setup", "bq24292i,max17047,fusb302,pi3usb30532"),
+ { }
+};
+
+static const struct ts_dmi_data gpd_win_pocket_data = {
+ .acpi_name = "INT34D3:00",
+ .properties = gpd_win_pocket_props,
+};
+
static const struct property_entry irbis_tw90_props[] = {
PROPERTY_ENTRY_U32("touchscreen-size-x", 1720),
PROPERTY_ENTRY_U32("touchscreen-size-y", 1138),
@@ -978,6 +988,16 @@ static const struct ts_dmi_data vinga_twizzle_j116_data = {
.properties = vinga_twizzle_j116_props,
};

+static const struct property_entry xiaomi_mi_pad2_props[] = {
+ PROPERTY_ENTRY_STRING("intel,cht-wc-setup", "bq25890,bq27520"),
+ { }
+};
+
+static const struct ts_dmi_data xiaomi_mi_pad2_data = {
+ .acpi_name = "INT34D3:00",
+ .properties = xiaomi_mi_pad2_props,
+};
+
/* NOTE: Please keep this table sorted alphabetically */
const struct dmi_system_id dmi_device_properties[] = {
{
@@ -1166,6 +1186,24 @@ const struct dmi_system_id dmi_device_properties[] = {
DMI_MATCH(DMI_BIOS_VERSION, "itWORKS.G.WI71C.JGBMRB"),
},
},
+ {
+ /* GPD win / GPD pocket mini laptops */
+ .driver_data = (void *)&gpd_win_pocket_data,
+ /*
+ * Note this may not seem like a very unique match, but in the
+ * 24000+ DMI decode dumps from linux-hardware.org only 42 have
+ * a board_vendor value of "AMI Corporation" and of those 42
+ * only 1 (the GPD win/pocket entry) has a board_name of
+ * "Default string". Also few devices have both board_ and
+ * product_name not set.
+ */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Default string"),
+ DMI_MATCH(DMI_BOARD_SERIAL, "Default string"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+ },
+ },
{
/* Irbis TW90 */
.driver_data = (void *)&irbis_tw90_data,
@@ -1578,6 +1616,14 @@ const struct dmi_system_id dmi_device_properties[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "TW700")
},
},
+ {
+ /* Xiaomi Mi Pad 2 */
+ .driver_data = (void *)&xiaomi_mi_pad2_data,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
+ },
+ },
{
/* Yours Y8W81, same case and touchscreen as Chuwi Vi8 */
.driver_data = (void *)&chuwi_vi8_data,
--
2.31.1