platform/x86: Move all dell drivers to their own subdirectory

A user without a Dell system doesn't need to pick any of these
drivers.

Users with a Dell system can enable this submenu and all drivers
behind it will be enabled.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Link: https://lore.kernel.org/r/20210203195832.2950605-1-mario.limonciello@dell.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

1 files changed, 0 insertions, 232 deletions

diff --git a/drivers/platform/x86/dell-smo8800.c b/drivers/platform/x86/dell-smo8800.c
deleted file mode 100644
index 5d9304a7de1b..000000000000
--- a/drivers/platform/x86/dell-smo8800.c
+++ /dev/null
@@ -1,232 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- *  dell-smo8800.c - Dell Latitude ACPI SMO88XX freefall sensor driver
- *
- *  Copyright (C) 2012 Sonal Santan <sonal.santan@gmail.com>
- *  Copyright (C) 2014 Pali Rohár <pali@kernel.org>
- *
- *  This is loosely based on lis3lv02d driver.
- */
-
-#define DRIVER_NAME "smo8800"
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/acpi.h>
-#include <linux/interrupt.h>
-#include <linux/miscdevice.h>
-#include <linux/uaccess.h>
-#include <linux/fs.h>
-
-struct smo8800_device {
-	u32 irq;                     /* acpi device irq */
-	atomic_t counter;            /* count after last read */
-	struct miscdevice miscdev;   /* for /dev/freefall */
-	unsigned long misc_opened;   /* whether the device is open */
-	wait_queue_head_t misc_wait; /* Wait queue for the misc dev */
-	struct device *dev;          /* acpi device */
-};
-
-static irqreturn_t smo8800_interrupt_quick(int irq, void *data)
-{
-	struct smo8800_device *smo8800 = data;
-
-	atomic_inc(&smo8800->counter);
-	wake_up_interruptible(&smo8800->misc_wait);
-	return IRQ_WAKE_THREAD;
-}
-
-static irqreturn_t smo8800_interrupt_thread(int irq, void *data)
-{
-	struct smo8800_device *smo8800 = data;
-
-	dev_info(smo8800->dev, "detected free fall\n");
-	return IRQ_HANDLED;
-}
-
-static acpi_status smo8800_get_resource(struct acpi_resource *resource,
-					void *context)
-{
-	struct acpi_resource_extended_irq *irq;
-
-	if (resource->type != ACPI_RESOURCE_TYPE_EXTENDED_IRQ)
-		return AE_OK;
-
-	irq = &resource->data.extended_irq;
-	if (!irq || !irq->interrupt_count)
-		return AE_OK;
-
-	*((u32 *)context) = irq->interrupts[0];
-	return AE_CTRL_TERMINATE;
-}
-
-static u32 smo8800_get_irq(struct acpi_device *device)
-{
-	u32 irq = 0;
-	acpi_status status;
-
-	status = acpi_walk_resources(device->handle, METHOD_NAME__CRS,
-				     smo8800_get_resource, &irq);
-	if (ACPI_FAILURE(status)) {
-		dev_err(&device->dev, "acpi_walk_resources failed\n");
-		return 0;
-	}
-
-	return irq;
-}
-
-static ssize_t smo8800_misc_read(struct file *file, char __user *buf,
-				 size_t count, loff_t *pos)
-{
-	struct smo8800_device *smo8800 = container_of(file->private_data,
-					 struct smo8800_device, miscdev);
-
-	u32 data = 0;
-	unsigned char byte_data;
-	ssize_t retval = 1;
-
-	if (count < 1)
-		return -EINVAL;
-
-	atomic_set(&smo8800->counter, 0);
-	retval = wait_event_interruptible(smo8800->misc_wait,
-				(data = atomic_xchg(&smo8800->counter, 0)));
-
-	if (retval)
-		return retval;
-
-	retval = 1;
-
-	if (data < 255)
-		byte_data = data;
-	else
-		byte_data = 255;
-
-	if (put_user(byte_data, buf))
-		retval = -EFAULT;
-
-	return retval;
-}
-
-static int smo8800_misc_open(struct inode *inode, struct file *file)
-{
-	struct smo8800_device *smo8800 = container_of(file->private_data,
-					 struct smo8800_device, miscdev);
-
-	if (test_and_set_bit(0, &smo8800->misc_opened))
-		return -EBUSY; /* already open */
-
-	atomic_set(&smo8800->counter, 0);
-	return 0;
-}
-
-static int smo8800_misc_release(struct inode *inode, struct file *file)
-{
-	struct smo8800_device *smo8800 = container_of(file->private_data,
-					 struct smo8800_device, miscdev);
-
-	clear_bit(0, &smo8800->misc_opened); /* release the device */
-	return 0;
-}
-
-static const struct file_operations smo8800_misc_fops = {
-	.owner = THIS_MODULE,
-	.read = smo8800_misc_read,
-	.open = smo8800_misc_open,
-	.release = smo8800_misc_release,
-};
-
-static int smo8800_add(struct acpi_device *device)
-{
-	int err;
-	struct smo8800_device *smo8800;
-
-	smo8800 = devm_kzalloc(&device->dev, sizeof(*smo8800), GFP_KERNEL);
-	if (!smo8800) {
-		dev_err(&device->dev, "failed to allocate device data\n");
-		return -ENOMEM;
-	}
-
-	smo8800->dev = &device->dev;
-	smo8800->miscdev.minor = MISC_DYNAMIC_MINOR;
-	smo8800->miscdev.name = "freefall";
-	smo8800->miscdev.fops = &smo8800_misc_fops;
-
-	init_waitqueue_head(&smo8800->misc_wait);
-
-	err = misc_register(&smo8800->miscdev);
-	if (err) {
-		dev_err(&device->dev, "failed to register misc dev: %d\n", err);
-		return err;
-	}
-
-	device->driver_data = smo8800;
-
-	smo8800->irq = smo8800_get_irq(device);
-	if (!smo8800->irq) {
-		dev_err(&device->dev, "failed to obtain IRQ\n");
-		err = -EINVAL;
-		goto error;
-	}
-
-	err = request_threaded_irq(smo8800->irq, smo8800_interrupt_quick,
-				   smo8800_interrupt_thread,
-				   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-				   DRIVER_NAME, smo8800);
-	if (err) {
-		dev_err(&device->dev,
-			"failed to request thread for IRQ %d: %d\n",
-			smo8800->irq, err);
-		goto error;
-	}
-
-	dev_dbg(&device->dev, "device /dev/freefall registered with IRQ %d\n",
-		 smo8800->irq);
-	return 0;
-
-error:
-	misc_deregister(&smo8800->miscdev);
-	return err;
-}
-
-static int smo8800_remove(struct acpi_device *device)
-{
-	struct smo8800_device *smo8800 = device->driver_data;
-
-	free_irq(smo8800->irq, smo8800);
-	misc_deregister(&smo8800->miscdev);
-	dev_dbg(&device->dev, "device /dev/freefall unregistered\n");
-	return 0;
-}
-
-/* NOTE: Keep this list in sync with drivers/i2c/busses/i2c-i801.c */
-static const struct acpi_device_id smo8800_ids[] = {
-	{ "SMO8800", 0 },
-	{ "SMO8801", 0 },
-	{ "SMO8810", 0 },
-	{ "SMO8811", 0 },
-	{ "SMO8820", 0 },
-	{ "SMO8821", 0 },
-	{ "SMO8830", 0 },
-	{ "SMO8831", 0 },
-	{ "", 0 },
-};
-
-MODULE_DEVICE_TABLE(acpi, smo8800_ids);
-
-static struct acpi_driver smo8800_driver = {
-	.name = DRIVER_NAME,
-	.class = "Latitude",
-	.ids = smo8800_ids,
-	.ops = {
-		.add = smo8800_add,
-		.remove = smo8800_remove,
-	},
-	.owner = THIS_MODULE,
-};
-
-module_acpi_driver(smo8800_driver);
-
-MODULE_DESCRIPTION("Dell Latitude freefall driver (ACPI SMO88XX)");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Sonal Santan, Pali Rohár");