6 files changed, 35 insertions, 47 deletions

diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 219478061683..253a096b5dd8 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -68,7 +68,7 @@ obj-$(CONFIG_THINKPAD_ACPI)	+= thinkpad_acpi.o
 obj-$(CONFIG_THINKPAD_LMI)	+= think-lmi.o
 
 # Intel
-obj-$(CONFIG_X86_PLATFORM_DRIVERS_INTEL)		+= intel/
+obj-y				+= intel/
 
 # MSI
 obj-$(CONFIG_MSI_LAPTOP)	+= msi-laptop.o
diff --git a/drivers/platform/x86/amd-pmc.c b/drivers/platform/x86/amd-pmc.c
index 841c44cd64c2..230593ae5d6d 100644
--- a/drivers/platform/x86/amd-pmc.c
+++ b/drivers/platform/x86/amd-pmc.c
@@ -508,7 +508,8 @@ static int __maybe_unused amd_pmc_resume(struct device *dev)
 }
 
 static const struct dev_pm_ops amd_pmc_pm_ops = {
-	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(amd_pmc_suspend, amd_pmc_resume)
+	.suspend_noirq = amd_pmc_suspend,
+	.resume_noirq = amd_pmc_resume,
 };
 
 static const struct pci_device_id pmc_pci_ids[] = {
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 9aae45a45200..57553f9b4d1d 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -625,7 +625,7 @@ static int gmux_probe(struct pnp_dev *pnp, const struct pnp_device_id *id)
 	}
 
 	gmux_data->iostart = res->start;
-	gmux_data->iolen = res->end - res->start;
+	gmux_data->iolen = resource_size(res);
 
 	if (gmux_data->iolen < GMUX_MIN_IO_LEN) {
 		pr_err("gmux I/O region too small (%lu < %u)\n",
diff --git a/drivers/platform/x86/intel/Kconfig b/drivers/platform/x86/intel/Kconfig
index 38ce3e344589..40096b25994a 100644
--- a/drivers/platform/x86/intel/Kconfig
+++ b/drivers/platform/x86/intel/Kconfig
@@ -3,19 +3,6 @@
 # Intel x86 Platform Specific Drivers
 #
 
-menuconfig X86_PLATFORM_DRIVERS_INTEL
-	bool "Intel x86 Platform Specific Device Drivers"
-	default y
-	help
-	  Say Y here to get to see options for device drivers for
-	  various Intel x86 platforms, including vendor-specific
-	  drivers. This option alone does not add any kernel code.
-
-	  If you say N, all options in this submenu will be skipped
-	  and disabled.
-
-if X86_PLATFORM_DRIVERS_INTEL
-
 source "drivers/platform/x86/intel/atomisp2/Kconfig"
 source "drivers/platform/x86/intel/int1092/Kconfig"
 source "drivers/platform/x86/intel/int33fe/Kconfig"
@@ -183,5 +170,3 @@ config INTEL_UNCORE_FREQ_CONTROL
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called intel-uncore-frequency.
-
-endif # X86_PLATFORM_DRIVERS_INTEL
diff --git a/drivers/platform/x86/intel/pmc/pltdrv.c b/drivers/platform/x86/intel/pmc/pltdrv.c
index 73797680b895..15ca8afdd973 100644
--- a/drivers/platform/x86/intel/pmc/pltdrv.c
+++ b/drivers/platform/x86/intel/pmc/pltdrv.c
@@ -65,7 +65,7 @@ static int __init pmc_core_platform_init(void)
 
 	retval = platform_device_register(pmc_core_device);
 	if (retval)
-		kfree(pmc_core_device);
+		platform_device_put(pmc_core_device);
 
 	return retval;
 }
diff --git a/drivers/platform/x86/system76_acpi.c b/drivers/platform/x86/system76_acpi.c
index 8b292ee95a14..7299ad08c838 100644
--- a/drivers/platform/x86/system76_acpi.c
+++ b/drivers/platform/x86/system76_acpi.c
@@ -35,6 +35,7 @@ struct system76_data {
 	union acpi_object *nfan;
 	union acpi_object *ntmp;
 	struct input_dev *input;
+	bool has_open_ec;
 };
 
 static const struct acpi_device_id device_ids[] = {
@@ -279,20 +280,12 @@ static struct acpi_battery_hook system76_battery_hook = {
 
 static void system76_battery_init(void)
 {
-	acpi_handle handle;
-
-	handle = ec_get_handle();
-	if (handle && acpi_has_method(handle, "GBCT"))
-		battery_hook_register(&system76_battery_hook);
+	battery_hook_register(&system76_battery_hook);
 }
 
 static void system76_battery_exit(void)
 {
-	acpi_handle handle;
-
-	handle = ec_get_handle();
-	if (handle && acpi_has_method(handle, "GBCT"))
-		battery_hook_unregister(&system76_battery_hook);
+	battery_hook_unregister(&system76_battery_hook);
 }
 
 // Get the airplane mode LED brightness
@@ -673,6 +666,10 @@ static int system76_add(struct acpi_device *acpi_dev)
 	acpi_dev->driver_data = data;
 	data->acpi_dev = acpi_dev;
 
+	// Some models do not run open EC firmware. Check for an ACPI method
+	// that only exists on open EC to guard functionality specific to it.
+	data->has_open_ec = acpi_has_method(acpi_device_handle(data->acpi_dev), "NFAN");
+
 	err = system76_get(data, "INIT");
 	if (err)
 		return err;
@@ -718,27 +715,31 @@ static int system76_add(struct acpi_device *acpi_dev)
 	if (err)
 		goto error;
 
-	err = system76_get_object(data, "NFAN", &data->nfan);
-	if (err)
-		goto error;
+	if (data->has_open_ec) {
+		err = system76_get_object(data, "NFAN", &data->nfan);
+		if (err)
+			goto error;
 
-	err = system76_get_object(data, "NTMP", &data->ntmp);
-	if (err)
-		goto error;
+		err = system76_get_object(data, "NTMP", &data->ntmp);
+		if (err)
+			goto error;
 
-	data->therm = devm_hwmon_device_register_with_info(&acpi_dev->dev,
-		"system76_acpi", data, &thermal_chip_info, NULL);
-	err = PTR_ERR_OR_ZERO(data->therm);
-	if (err)
-		goto error;
+		data->therm = devm_hwmon_device_register_with_info(&acpi_dev->dev,
+			"system76_acpi", data, &thermal_chip_info, NULL);
+		err = PTR_ERR_OR_ZERO(data->therm);
+		if (err)
+			goto error;
 
-	system76_battery_init();
+		system76_battery_init();
+	}
 
 	return 0;
 
 error:
-	kfree(data->ntmp);
-	kfree(data->nfan);
+	if (data->has_open_ec) {
+		kfree(data->ntmp);
+		kfree(data->nfan);
+	}
 	return err;
 }
 
@@ -749,14 +750,15 @@ static int system76_remove(struct acpi_device *acpi_dev)
 
 	data = acpi_driver_data(acpi_dev);
 
-	system76_battery_exit();
+	if (data->has_open_ec) {
+		system76_battery_exit();
+		kfree(data->nfan);
+		kfree(data->ntmp);
+	}
 
 	devm_led_classdev_unregister(&acpi_dev->dev, &data->ap_led);
 	devm_led_classdev_unregister(&acpi_dev->dev, &data->kb_led);
 
-	kfree(data->nfan);
-	kfree(data->ntmp);
-
 	system76_get(data, "FINI");
 
 	return 0;