Commit 13bf63b9 authored by Cryolitia PukNgae's avatar Cryolitia PukNgae Committed by Guenter Roeck
Browse files

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

 #1
Co-developed-by: default avatarkylon <3252255+kylon@users.noreply.github.com>
Signed-off-by: default avatarkylon <3252255+kylon@users.noreply.github.com>
Tested-by: default avatarkylon <3252255+kylon@users.noreply.github.com>
Link: https://github.com/Cryolitia/gpd-fan-driver/pull/23


Signed-off-by: default avatarCryolitia PukNgae <cryolitia@uniontech.com>
Link: https://lore.kernel.org/r/20251222-mpc2-v1-1-695d8d351cc1@uniontech.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent bcd5120a

Documentation/hwmon/gpd-fan.rst

+3 −0
Original line number Diff line number Diff line
@@ -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

-------------

drivers/hwmon/gpd-fan.c

+26 −1
Original line number Diff line number Diff line
@@ -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: