VHF: Add support for Surface Laptop 3 keyboard & touchpad.

Author: archseer

module/Makefile

@@ -13,6 +13,7 @@ surface_sam-objs += surface_sam_dtx.o
 surface_sam-objs += surface_sam_sid.o
 surface_sam-objs += surface_sam_sid_gpelid.o
 surface_sam-objs += surface_sam_sid_perfmode.o
+surface_sam-objs += surface_sam_sid_vhf.o
 
 sources := Makefile
 sources += dkms.conf
@@ -26,6 +27,7 @@ sources += surface_sam_dtx.c
 sources += surface_sam_sid.c
 sources += surface_sam_sid_gpelid.c
 sources += surface_sam_sid_perfmode.c
+sources += surface_sam_sid_vhf.c
 
 ccflags-y := -DDEBUG
 

module/surface_sam_base.c

@@ -11,6 +11,7 @@ extern struct platform_driver surface_sam_dtx;
 extern struct platform_driver surface_sam_sid;
 extern struct platform_driver surface_sam_sid_gpelid;
 extern struct platform_driver surface_sam_sid_perfmode;
+extern struct platform_driver surface_sam_sid_vhf;
 
 
 int __init surface_sam_init(void)
@@ -52,8 +53,15 @@ int __init surface_sam_init(void)
 		goto err_sid_perfmode;
 	}
 
+	status = platform_driver_register(&surface_sam_sid_vhf);
+	if (status) {
+		goto err_sid_vhf;
+	}
+
 	return 0;
 
+err_sid_vhf:
+	platform_driver_unregister(&surface_sam_sid_perfmode);
 err_sid_perfmode:
 	platform_driver_unregister(&surface_sam_sid_gpelid);
 err_sid_gpelid:
@@ -72,6 +80,7 @@ int __init surface_sam_init(void)
 
 void __exit surface_sam_exit(void)
 {
+	platform_driver_unregister(&surface_sam_sid_vhf);
 	platform_driver_unregister(&surface_sam_sid_perfmode);
 	platform_driver_unregister(&surface_sam_sid_gpelid);
 	platform_driver_unregister(&surface_sam_sid);

module/surface_sam_sid.c

@@ -38,6 +38,7 @@ static const struct mfd_cell sid_devs_sl2[] = {
 
 static const struct mfd_cell sid_devs_sl3_13[] = {
 	{ .name = "surface_sam_sid_gpelid", .id = -1 },
+	{ .name = "surface_sam_sid_vhf", .id = -1 },
 	{ },
 };