platform/x86: dell-ddv: Add support for interface version 3

While trying to solve a bugreport on bugzilla, i learned that
some devices (for example the Dell XPS 17 9710) provide a more
recent DDV WMI interface (version 3).
Since the new interface version just adds an additional method,
no code changes are necessary apart from whitelisting the version.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20230126194021.381092-2-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/x86/dell/dell-wmi-ddv.c b/drivers/platform/x86/dell/dell-wmi-ddv.c
index 2bb4498..9cb6ae4 100644 (file)
--- a/drivers/platform/x86/dell/dell-wmi-ddv.c
+++ b/drivers/platform/x86/dell/dell-wmi-ddv.c
@@ -26,7 +26,8 @@
 
 #define DRIVER_NAME    "dell-wmi-ddv"
 
-#define DELL_DDV_SUPPORTED_INTERFACE 2
+#define DELL_DDV_SUPPORTED_VERSION_MIN 2
+#define DELL_DDV_SUPPORTED_VERSION_MAX 3
 #define DELL_DDV_GUID  "8A42EA14-4F2A-FD45-6422-0087F7A7E608"
 
 #define DELL_EPPID_LENGTH      20
@@ -49,6 +50,7 @@ enum dell_ddv_method {
        DELL_DDV_BATTERY_RAW_ANALYTICS_START    = 0x0E,
        DELL_DDV_BATTERY_RAW_ANALYTICS          = 0x0F,
        DELL_DDV_BATTERY_DESIGN_VOLTAGE         = 0x10,
+       DELL_DDV_BATTERY_RAW_ANALYTICS_A_BLOCK  = 0x11, /* version 3 */
 
        DELL_DDV_INTERFACE_VERSION              = 0x12,
 
@@ -340,7 +342,7 @@ static int dell_wmi_ddv_probe(struct wmi_device *wdev, const void *context)
                return ret;
 
        dev_dbg(&wdev->dev, "WMI interface version: %d\n", version);
-       if (version != DELL_DDV_SUPPORTED_INTERFACE)
+       if (version < DELL_DDV_SUPPORTED_VERSION_MIN || version > DELL_DDV_SUPPORTED_VERSION_MAX)
                return -ENODEV;
 
        data = devm_kzalloc(&wdev->dev, sizeof(*data), GFP_KERNEL);