hwmon: (gpd-fan) add support for Micro PC 2

GPD Micro PC 2 is a mobile productivity device with 7-inch screen and
abundant ports.[1]

Link: https://www.gpd.hk/gpdmicropc2345345345
Co-developed-by: kylon <3252255+kylon@users.noreply.github.com>
Signed-off-by: kylon <3252255+kylon@users.noreply.github.com>
Tested-by: kylon <3252255+kylon@users.noreply.github.com>
Link: https://github.com/Cryolitia/gpd-fan-driver/pull/23
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Link: https://lore.kernel.org/r/20251222-mpc2-v1-1-695d8d351cc1@uniontech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/Documentation/hwmon/gpd-fan.rst b/Documentation/hwmon/gpd-fan.rst
index 0b56b70e6264ddccaa4d84b326841c8f63b43a39..29527a77fe882fe10837bf89373772f3f6444bbb 100644 (file)
--- a/Documentation/hwmon/gpd-fan.rst
+++ b/Documentation/hwmon/gpd-fan.rst
@@ -28,6 +28,7 @@ Currently the driver supports the following handhelds:
  - GPD Win Max 2 2025 (HX370)
  - GPD Win 4 (6800U)
  - GPD Win 4 (7840U)
+ - GPD Micro PC 2
 
 Module parameters
 -----------------
@@ -50,6 +51,8 @@ gpd_fan_board
        - GPD Win Mini (HX370)
        - GPD Pocket 4
        - GPD Duo
+   - mpc2
+       - GPD Micro PC 2
 
 Sysfs entries
 -------------

diff --git a/drivers/hwmon/gpd-fan.c b/drivers/hwmon/gpd-fan.c
index 237f496c486204b187da23cb4bbb06ee597f4014..1729729b135f8f92b001ffa179b4a8d6a783b5c5 100644 (file)
--- a/drivers/hwmon/gpd-fan.c
+++ b/drivers/hwmon/gpd-fan.c
@@ -31,6 +31,7 @@ enum gpd_board {
        win4_6800u,
        win_max_2,
        duo,
+       mpc2,
 };
 
 enum FAN_PWM_ENABLE {
@@ -106,6 +107,18 @@ static struct gpd_fan_drvdata gpd_wm2_drvdata = {
        .pwm_max                = 184,
 };
 
+static struct gpd_fan_drvdata gpd_mpc2_drvdata = {
+       .board_name             = "mpc2",
+       .board                  = mpc2,
+
+       .addr_port              = 0x4E,
+       .data_port              = 0x4F,
+       .manual_control_enable  = 0x047A,
+       .rpm_read               = 0x0476,
+       .pwm_write              = 0x047A,
+       .pwm_max                = 244,
+};
+
 static const struct dmi_system_id dmi_table[] = {
        {
                // GPD Win Mini
@@ -212,11 +225,19 @@ static const struct dmi_system_id dmi_table[] = {
                },
                .driver_data = &gpd_win_mini_drvdata,
        },
+       {
+               // GPD Micro PC 2
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "GPD"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "G1688-08"),
+               },
+               .driver_data = &gpd_mpc2_drvdata,
+       },
        {}
 };
 
 static const struct gpd_fan_drvdata *gpd_module_drvdata[] = {
-       &gpd_win_mini_drvdata, &gpd_win4_drvdata, &gpd_wm2_drvdata, NULL
+       &gpd_win_mini_drvdata, &gpd_win4_drvdata, &gpd_wm2_drvdata, &gpd_mpc2_drvdata, NULL
 };
 
 // Helper functions to handle EC read/write
@@ -295,6 +316,7 @@ static int gpd_read_rpm(void)
        case win4_6800u:
        case win_mini:
        case duo:
+       case mpc2:
                return gpd_generic_read_rpm();
        case win_max_2:
                return gpd_wm2_read_rpm();
@@ -321,6 +343,7 @@ static int gpd_read_pwm(void)
        case win_mini:
        case duo:
        case win4_6800u:
+       case mpc2:
                switch (gpd_driver_priv.pwm_enable) {
                case DISABLE:
                        return 255;
@@ -376,6 +399,7 @@ static int gpd_write_pwm(u8 val)
        case win_mini:
        case win4_6800u:
        case win_max_2:
+       case mpc2:
                gpd_generic_write_pwm(val);
                break;
        }
@@ -443,6 +467,7 @@ static void gpd_set_pwm_enable(enum FAN_PWM_ENABLE enable)
        switch (gpd_driver_priv.drvdata->board) {
        case win_mini:
        case win4_6800u:
+       case mpc2:
                gpd_win_mini_set_pwm_enable(enable);
                break;
        case duo: