source "drivers/platform/x86/intel/Kconfig"
-config INTEL_OAKTRAIL
- tristate "Intel Oaktrail Platform Extras"
- depends on ACPI
- depends on ACPI_VIDEO || ACPI_VIDEO = n
- depends on RFKILL && BACKLIGHT_CLASS_DEVICE && ACPI
- help
- Intel Oaktrail platform need this driver to provide interfaces to
- enable/disable the Camera, WiFi, BT etc. devices. If in doubt, say Y
- here; it will only load on supported platforms.
-
config INTEL_VBTN
tristate "INTEL VIRTUAL BUTTON"
depends on ACPI
# Intel
obj-$(CONFIG_X86_PLATFORM_DRIVERS_INTEL) += intel/
-obj-$(CONFIG_INTEL_OAKTRAIL) += intel_oaktrail.o
obj-$(CONFIG_INTEL_VBTN) += intel-vbtn.o
# MSI
To compile this driver as a module, choose M here: the module will
be called intel_int0002_vgpio.
+config INTEL_OAKTRAIL
+ tristate "Intel Oaktrail Platform Extras"
+ depends on ACPI
+ depends on ACPI_VIDEO || ACPI_VIDEO=n
+ depends on RFKILL && BACKLIGHT_CLASS_DEVICE && ACPI
+ help
+ Intel Oaktrail platform need this driver to provide interfaces to
+ enable/disable the Camera, WiFi, BT etc. devices. If in doubt, say Y
+ here; it will only load on supported platforms.
+
config INTEL_BXTWC_PMIC_TMU
tristate "Intel Broxton Whiskey Cove TMU Driver"
depends on INTEL_SOC_PMIC_BXTWC
# Intel miscellaneous drivers
intel_int0002_vgpio-y := int0002_vgpio.o
obj-$(CONFIG_INTEL_INT0002_VGPIO) += intel_int0002_vgpio.o
+intel_oaktrail-y := oaktrail.o
+obj-$(CONFIG_INTEL_OAKTRAIL) += intel_oaktrail.o
# Intel PMIC / PMC / P-Unit drivers
intel_bxtwc_tmu-y := bxtwc_tmu.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Intel OakTrail Platform support
+ *
+ * Copyright (C) 2010-2011 Intel Corporation
+ * Author: Yin Kangkai (kangkai.yin@intel.com)
+ *
+ * based on Compal driver, Copyright (C) 2008 Cezary Jackiewicz
+ * <cezary.jackiewicz (at) gmail.com>, based on MSI driver
+ * Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de>
+ *
+ * This driver does below things:
+ * 1. registers itself in the Linux backlight control in
+ * /sys/class/backlight/intel_oaktrail/
+ *
+ * 2. registers in the rfkill subsystem here: /sys/class/rfkill/rfkillX/
+ * for these components: wifi, bluetooth, wwan (3g), gps
+ *
+ * This driver might work on other products based on Oaktrail. If you
+ * want to try it you can pass force=1 as argument to the module which
+ * will force it to load even when the DMI data doesn't identify the
+ * product as compatible.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/acpi.h>
+#include <linux/backlight.h>
+#include <linux/dmi.h>
+#include <linux/err.h>
+#include <linux/fb.h>
+#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/rfkill.h>
+
+#include <acpi/video.h>
+
+#define DRIVER_NAME "intel_oaktrail"
+#define DRIVER_VERSION "0.4ac1"
+
+/*
+ * This is the devices status address in EC space, and the control bits
+ * definition:
+ *
+ * (1 << 0): Camera enable/disable, RW.
+ * (1 << 1): Bluetooth enable/disable, RW.
+ * (1 << 2): GPS enable/disable, RW.
+ * (1 << 3): WiFi enable/disable, RW.
+ * (1 << 4): WWAN (3G) enable/disable, RW.
+ * (1 << 5): Touchscreen enable/disable, Read Only.
+ */
+#define OT_EC_DEVICE_STATE_ADDRESS 0xD6
+
+#define OT_EC_CAMERA_MASK (1 << 0)
+#define OT_EC_BT_MASK (1 << 1)
+#define OT_EC_GPS_MASK (1 << 2)
+#define OT_EC_WIFI_MASK (1 << 3)
+#define OT_EC_WWAN_MASK (1 << 4)
+#define OT_EC_TS_MASK (1 << 5)
+
+/*
+ * This is the address in EC space and commands used to control LCD backlight:
+ *
+ * Two steps needed to change the LCD backlight:
+ * 1. write the backlight percentage into OT_EC_BL_BRIGHTNESS_ADDRESS;
+ * 2. write OT_EC_BL_CONTROL_ON_DATA into OT_EC_BL_CONTROL_ADDRESS.
+ *
+ * To read the LCD back light, just read out the value from
+ * OT_EC_BL_BRIGHTNESS_ADDRESS.
+ *
+ * LCD backlight brightness range: 0 - 100 (OT_EC_BL_BRIGHTNESS_MAX)
+ */
+#define OT_EC_BL_BRIGHTNESS_ADDRESS 0x44
+#define OT_EC_BL_BRIGHTNESS_MAX 100
+#define OT_EC_BL_CONTROL_ADDRESS 0x3A
+#define OT_EC_BL_CONTROL_ON_DATA 0x1A
+
+
+static bool force;
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
+
+static struct platform_device *oaktrail_device;
+static struct backlight_device *oaktrail_bl_device;
+static struct rfkill *bt_rfkill;
+static struct rfkill *gps_rfkill;
+static struct rfkill *wifi_rfkill;
+static struct rfkill *wwan_rfkill;
+
+
+/* rfkill */
+static int oaktrail_rfkill_set(void *data, bool blocked)
+{
+ u8 value;
+ u8 result;
+ unsigned long radio = (unsigned long) data;
+
+ ec_read(OT_EC_DEVICE_STATE_ADDRESS, &result);
+
+ if (!blocked)
+ value = (u8) (result | radio);
+ else
+ value = (u8) (result & ~radio);
+
+ ec_write(OT_EC_DEVICE_STATE_ADDRESS, value);
+
+ return 0;
+}
+
+static const struct rfkill_ops oaktrail_rfkill_ops = {
+ .set_block = oaktrail_rfkill_set,
+};
+
+static struct rfkill *oaktrail_rfkill_new(char *name, enum rfkill_type type,
+ unsigned long mask)
+{
+ struct rfkill *rfkill_dev;
+ u8 value;
+ int err;
+
+ rfkill_dev = rfkill_alloc(name, &oaktrail_device->dev, type,
+ &oaktrail_rfkill_ops, (void *)mask);
+ if (!rfkill_dev)
+ return ERR_PTR(-ENOMEM);
+
+ ec_read(OT_EC_DEVICE_STATE_ADDRESS, &value);
+ rfkill_init_sw_state(rfkill_dev, (value & mask) != 1);
+
+ err = rfkill_register(rfkill_dev);
+ if (err) {
+ rfkill_destroy(rfkill_dev);
+ return ERR_PTR(err);
+ }
+
+ return rfkill_dev;
+}
+
+static inline void __oaktrail_rfkill_cleanup(struct rfkill *rf)
+{
+ if (rf) {
+ rfkill_unregister(rf);
+ rfkill_destroy(rf);
+ }
+}
+
+static void oaktrail_rfkill_cleanup(void)
+{
+ __oaktrail_rfkill_cleanup(wifi_rfkill);
+ __oaktrail_rfkill_cleanup(bt_rfkill);
+ __oaktrail_rfkill_cleanup(gps_rfkill);
+ __oaktrail_rfkill_cleanup(wwan_rfkill);
+}
+
+static int oaktrail_rfkill_init(void)
+{
+ int ret;
+
+ wifi_rfkill = oaktrail_rfkill_new("oaktrail-wifi",
+ RFKILL_TYPE_WLAN,
+ OT_EC_WIFI_MASK);
+ if (IS_ERR(wifi_rfkill)) {
+ ret = PTR_ERR(wifi_rfkill);
+ wifi_rfkill = NULL;
+ goto cleanup;
+ }
+
+ bt_rfkill = oaktrail_rfkill_new("oaktrail-bluetooth",
+ RFKILL_TYPE_BLUETOOTH,
+ OT_EC_BT_MASK);
+ if (IS_ERR(bt_rfkill)) {
+ ret = PTR_ERR(bt_rfkill);
+ bt_rfkill = NULL;
+ goto cleanup;
+ }
+
+ gps_rfkill = oaktrail_rfkill_new("oaktrail-gps",
+ RFKILL_TYPE_GPS,
+ OT_EC_GPS_MASK);
+ if (IS_ERR(gps_rfkill)) {
+ ret = PTR_ERR(gps_rfkill);
+ gps_rfkill = NULL;
+ goto cleanup;
+ }
+
+ wwan_rfkill = oaktrail_rfkill_new("oaktrail-wwan",
+ RFKILL_TYPE_WWAN,
+ OT_EC_WWAN_MASK);
+ if (IS_ERR(wwan_rfkill)) {
+ ret = PTR_ERR(wwan_rfkill);
+ wwan_rfkill = NULL;
+ goto cleanup;
+ }
+
+ return 0;
+
+cleanup:
+ oaktrail_rfkill_cleanup();
+ return ret;
+}
+
+
+/* backlight */
+static int get_backlight_brightness(struct backlight_device *b)
+{
+ u8 value;
+ ec_read(OT_EC_BL_BRIGHTNESS_ADDRESS, &value);
+
+ return value;
+}
+
+static int set_backlight_brightness(struct backlight_device *b)
+{
+ u8 percent = (u8) b->props.brightness;
+ if (percent < 0 || percent > OT_EC_BL_BRIGHTNESS_MAX)
+ return -EINVAL;
+
+ ec_write(OT_EC_BL_BRIGHTNESS_ADDRESS, percent);
+ ec_write(OT_EC_BL_CONTROL_ADDRESS, OT_EC_BL_CONTROL_ON_DATA);
+
+ return 0;
+}
+
+static const struct backlight_ops oaktrail_bl_ops = {
+ .get_brightness = get_backlight_brightness,
+ .update_status = set_backlight_brightness,
+};
+
+static int oaktrail_backlight_init(void)
+{
+ struct backlight_device *bd;
+ struct backlight_properties props;
+
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.type = BACKLIGHT_PLATFORM;
+ props.max_brightness = OT_EC_BL_BRIGHTNESS_MAX;
+ bd = backlight_device_register(DRIVER_NAME,
+ &oaktrail_device->dev, NULL,
+ &oaktrail_bl_ops,
+ &props);
+
+ if (IS_ERR(bd)) {
+ oaktrail_bl_device = NULL;
+ pr_warn("Unable to register backlight device\n");
+ return PTR_ERR(bd);
+ }
+
+ oaktrail_bl_device = bd;
+
+ bd->props.brightness = get_backlight_brightness(bd);
+ bd->props.power = FB_BLANK_UNBLANK;
+ backlight_update_status(bd);
+
+ return 0;
+}
+
+static void oaktrail_backlight_exit(void)
+{
+ backlight_device_unregister(oaktrail_bl_device);
+}
+
+static int oaktrail_probe(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static int oaktrail_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static struct platform_driver oaktrail_driver = {
+ .driver = {
+ .name = DRIVER_NAME,
+ },
+ .probe = oaktrail_probe,
+ .remove = oaktrail_remove,
+};
+
+static int dmi_check_cb(const struct dmi_system_id *id)
+{
+ pr_info("Identified model '%s'\n", id->ident);
+ return 0;
+}
+
+static const struct dmi_system_id oaktrail_dmi_table[] __initconst = {
+ {
+ .ident = "OakTrail platform",
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "OakTrail platform"),
+ },
+ .callback = dmi_check_cb
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(dmi, oaktrail_dmi_table);
+
+static int __init oaktrail_init(void)
+{
+ int ret;
+
+ if (acpi_disabled) {
+ pr_err("ACPI needs to be enabled for this driver to work!\n");
+ return -ENODEV;
+ }
+
+ if (!force && !dmi_check_system(oaktrail_dmi_table)) {
+ pr_err("Platform not recognized (You could try the module's force-parameter)");
+ return -ENODEV;
+ }
+
+ ret = platform_driver_register(&oaktrail_driver);
+ if (ret) {
+ pr_warn("Unable to register platform driver\n");
+ goto err_driver_reg;
+ }
+
+ oaktrail_device = platform_device_alloc(DRIVER_NAME, -1);
+ if (!oaktrail_device) {
+ pr_warn("Unable to allocate platform device\n");
+ ret = -ENOMEM;
+ goto err_device_alloc;
+ }
+
+ ret = platform_device_add(oaktrail_device);
+ if (ret) {
+ pr_warn("Unable to add platform device\n");
+ goto err_device_add;
+ }
+
+ if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
+ ret = oaktrail_backlight_init();
+ if (ret)
+ goto err_backlight;
+ }
+
+ ret = oaktrail_rfkill_init();
+ if (ret) {
+ pr_warn("Setup rfkill failed\n");
+ goto err_rfkill;
+ }
+
+ pr_info("Driver "DRIVER_VERSION" successfully loaded\n");
+ return 0;
+
+err_rfkill:
+ oaktrail_backlight_exit();
+err_backlight:
+ platform_device_del(oaktrail_device);
+err_device_add:
+ platform_device_put(oaktrail_device);
+err_device_alloc:
+ platform_driver_unregister(&oaktrail_driver);
+err_driver_reg:
+
+ return ret;
+}
+
+static void __exit oaktrail_cleanup(void)
+{
+ oaktrail_backlight_exit();
+ oaktrail_rfkill_cleanup();
+ platform_device_unregister(oaktrail_device);
+ platform_driver_unregister(&oaktrail_driver);
+
+ pr_info("Driver unloaded\n");
+}
+
+module_init(oaktrail_init);
+module_exit(oaktrail_cleanup);
+
+MODULE_AUTHOR("Yin Kangkai (kangkai.yin@intel.com)");
+MODULE_DESCRIPTION("Intel Oaktrail Platform ACPI Extras");
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL");
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Intel OakTrail Platform support
- *
- * Copyright (C) 2010-2011 Intel Corporation
- * Author: Yin Kangkai (kangkai.yin@intel.com)
- *
- * based on Compal driver, Copyright (C) 2008 Cezary Jackiewicz
- * <cezary.jackiewicz (at) gmail.com>, based on MSI driver
- * Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de>
- *
- * This driver does below things:
- * 1. registers itself in the Linux backlight control in
- * /sys/class/backlight/intel_oaktrail/
- *
- * 2. registers in the rfkill subsystem here: /sys/class/rfkill/rfkillX/
- * for these components: wifi, bluetooth, wwan (3g), gps
- *
- * This driver might work on other products based on Oaktrail. If you
- * want to try it you can pass force=1 as argument to the module which
- * will force it to load even when the DMI data doesn't identify the
- * product as compatible.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/acpi.h>
-#include <linux/backlight.h>
-#include <linux/dmi.h>
-#include <linux/err.h>
-#include <linux/fb.h>
-#include <linux/i2c.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/platform_device.h>
-#include <linux/rfkill.h>
-
-#include <acpi/video.h>
-
-#define DRIVER_NAME "intel_oaktrail"
-#define DRIVER_VERSION "0.4ac1"
-
-/*
- * This is the devices status address in EC space, and the control bits
- * definition:
- *
- * (1 << 0): Camera enable/disable, RW.
- * (1 << 1): Bluetooth enable/disable, RW.
- * (1 << 2): GPS enable/disable, RW.
- * (1 << 3): WiFi enable/disable, RW.
- * (1 << 4): WWAN (3G) enable/disable, RW.
- * (1 << 5): Touchscreen enable/disable, Read Only.
- */
-#define OT_EC_DEVICE_STATE_ADDRESS 0xD6
-
-#define OT_EC_CAMERA_MASK (1 << 0)
-#define OT_EC_BT_MASK (1 << 1)
-#define OT_EC_GPS_MASK (1 << 2)
-#define OT_EC_WIFI_MASK (1 << 3)
-#define OT_EC_WWAN_MASK (1 << 4)
-#define OT_EC_TS_MASK (1 << 5)
-
-/*
- * This is the address in EC space and commands used to control LCD backlight:
- *
- * Two steps needed to change the LCD backlight:
- * 1. write the backlight percentage into OT_EC_BL_BRIGHTNESS_ADDRESS;
- * 2. write OT_EC_BL_CONTROL_ON_DATA into OT_EC_BL_CONTROL_ADDRESS.
- *
- * To read the LCD back light, just read out the value from
- * OT_EC_BL_BRIGHTNESS_ADDRESS.
- *
- * LCD backlight brightness range: 0 - 100 (OT_EC_BL_BRIGHTNESS_MAX)
- */
-#define OT_EC_BL_BRIGHTNESS_ADDRESS 0x44
-#define OT_EC_BL_BRIGHTNESS_MAX 100
-#define OT_EC_BL_CONTROL_ADDRESS 0x3A
-#define OT_EC_BL_CONTROL_ON_DATA 0x1A
-
-
-static bool force;
-module_param(force, bool, 0);
-MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
-
-static struct platform_device *oaktrail_device;
-static struct backlight_device *oaktrail_bl_device;
-static struct rfkill *bt_rfkill;
-static struct rfkill *gps_rfkill;
-static struct rfkill *wifi_rfkill;
-static struct rfkill *wwan_rfkill;
-
-
-/* rfkill */
-static int oaktrail_rfkill_set(void *data, bool blocked)
-{
- u8 value;
- u8 result;
- unsigned long radio = (unsigned long) data;
-
- ec_read(OT_EC_DEVICE_STATE_ADDRESS, &result);
-
- if (!blocked)
- value = (u8) (result | radio);
- else
- value = (u8) (result & ~radio);
-
- ec_write(OT_EC_DEVICE_STATE_ADDRESS, value);
-
- return 0;
-}
-
-static const struct rfkill_ops oaktrail_rfkill_ops = {
- .set_block = oaktrail_rfkill_set,
-};
-
-static struct rfkill *oaktrail_rfkill_new(char *name, enum rfkill_type type,
- unsigned long mask)
-{
- struct rfkill *rfkill_dev;
- u8 value;
- int err;
-
- rfkill_dev = rfkill_alloc(name, &oaktrail_device->dev, type,
- &oaktrail_rfkill_ops, (void *)mask);
- if (!rfkill_dev)
- return ERR_PTR(-ENOMEM);
-
- ec_read(OT_EC_DEVICE_STATE_ADDRESS, &value);
- rfkill_init_sw_state(rfkill_dev, (value & mask) != 1);
-
- err = rfkill_register(rfkill_dev);
- if (err) {
- rfkill_destroy(rfkill_dev);
- return ERR_PTR(err);
- }
-
- return rfkill_dev;
-}
-
-static inline void __oaktrail_rfkill_cleanup(struct rfkill *rf)
-{
- if (rf) {
- rfkill_unregister(rf);
- rfkill_destroy(rf);
- }
-}
-
-static void oaktrail_rfkill_cleanup(void)
-{
- __oaktrail_rfkill_cleanup(wifi_rfkill);
- __oaktrail_rfkill_cleanup(bt_rfkill);
- __oaktrail_rfkill_cleanup(gps_rfkill);
- __oaktrail_rfkill_cleanup(wwan_rfkill);
-}
-
-static int oaktrail_rfkill_init(void)
-{
- int ret;
-
- wifi_rfkill = oaktrail_rfkill_new("oaktrail-wifi",
- RFKILL_TYPE_WLAN,
- OT_EC_WIFI_MASK);
- if (IS_ERR(wifi_rfkill)) {
- ret = PTR_ERR(wifi_rfkill);
- wifi_rfkill = NULL;
- goto cleanup;
- }
-
- bt_rfkill = oaktrail_rfkill_new("oaktrail-bluetooth",
- RFKILL_TYPE_BLUETOOTH,
- OT_EC_BT_MASK);
- if (IS_ERR(bt_rfkill)) {
- ret = PTR_ERR(bt_rfkill);
- bt_rfkill = NULL;
- goto cleanup;
- }
-
- gps_rfkill = oaktrail_rfkill_new("oaktrail-gps",
- RFKILL_TYPE_GPS,
- OT_EC_GPS_MASK);
- if (IS_ERR(gps_rfkill)) {
- ret = PTR_ERR(gps_rfkill);
- gps_rfkill = NULL;
- goto cleanup;
- }
-
- wwan_rfkill = oaktrail_rfkill_new("oaktrail-wwan",
- RFKILL_TYPE_WWAN,
- OT_EC_WWAN_MASK);
- if (IS_ERR(wwan_rfkill)) {
- ret = PTR_ERR(wwan_rfkill);
- wwan_rfkill = NULL;
- goto cleanup;
- }
-
- return 0;
-
-cleanup:
- oaktrail_rfkill_cleanup();
- return ret;
-}
-
-
-/* backlight */
-static int get_backlight_brightness(struct backlight_device *b)
-{
- u8 value;
- ec_read(OT_EC_BL_BRIGHTNESS_ADDRESS, &value);
-
- return value;
-}
-
-static int set_backlight_brightness(struct backlight_device *b)
-{
- u8 percent = (u8) b->props.brightness;
- if (percent < 0 || percent > OT_EC_BL_BRIGHTNESS_MAX)
- return -EINVAL;
-
- ec_write(OT_EC_BL_BRIGHTNESS_ADDRESS, percent);
- ec_write(OT_EC_BL_CONTROL_ADDRESS, OT_EC_BL_CONTROL_ON_DATA);
-
- return 0;
-}
-
-static const struct backlight_ops oaktrail_bl_ops = {
- .get_brightness = get_backlight_brightness,
- .update_status = set_backlight_brightness,
-};
-
-static int oaktrail_backlight_init(void)
-{
- struct backlight_device *bd;
- struct backlight_properties props;
-
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_PLATFORM;
- props.max_brightness = OT_EC_BL_BRIGHTNESS_MAX;
- bd = backlight_device_register(DRIVER_NAME,
- &oaktrail_device->dev, NULL,
- &oaktrail_bl_ops,
- &props);
-
- if (IS_ERR(bd)) {
- oaktrail_bl_device = NULL;
- pr_warn("Unable to register backlight device\n");
- return PTR_ERR(bd);
- }
-
- oaktrail_bl_device = bd;
-
- bd->props.brightness = get_backlight_brightness(bd);
- bd->props.power = FB_BLANK_UNBLANK;
- backlight_update_status(bd);
-
- return 0;
-}
-
-static void oaktrail_backlight_exit(void)
-{
- backlight_device_unregister(oaktrail_bl_device);
-}
-
-static int oaktrail_probe(struct platform_device *pdev)
-{
- return 0;
-}
-
-static int oaktrail_remove(struct platform_device *pdev)
-{
- return 0;
-}
-
-static struct platform_driver oaktrail_driver = {
- .driver = {
- .name = DRIVER_NAME,
- },
- .probe = oaktrail_probe,
- .remove = oaktrail_remove,
-};
-
-static int dmi_check_cb(const struct dmi_system_id *id)
-{
- pr_info("Identified model '%s'\n", id->ident);
- return 0;
-}
-
-static const struct dmi_system_id oaktrail_dmi_table[] __initconst = {
- {
- .ident = "OakTrail platform",
- .matches = {
- DMI_MATCH(DMI_PRODUCT_NAME, "OakTrail platform"),
- },
- .callback = dmi_check_cb
- },
- { }
-};
-MODULE_DEVICE_TABLE(dmi, oaktrail_dmi_table);
-
-static int __init oaktrail_init(void)
-{
- int ret;
-
- if (acpi_disabled) {
- pr_err("ACPI needs to be enabled for this driver to work!\n");
- return -ENODEV;
- }
-
- if (!force && !dmi_check_system(oaktrail_dmi_table)) {
- pr_err("Platform not recognized (You could try the module's force-parameter)");
- return -ENODEV;
- }
-
- ret = platform_driver_register(&oaktrail_driver);
- if (ret) {
- pr_warn("Unable to register platform driver\n");
- goto err_driver_reg;
- }
-
- oaktrail_device = platform_device_alloc(DRIVER_NAME, -1);
- if (!oaktrail_device) {
- pr_warn("Unable to allocate platform device\n");
- ret = -ENOMEM;
- goto err_device_alloc;
- }
-
- ret = platform_device_add(oaktrail_device);
- if (ret) {
- pr_warn("Unable to add platform device\n");
- goto err_device_add;
- }
-
- if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
- ret = oaktrail_backlight_init();
- if (ret)
- goto err_backlight;
- }
-
- ret = oaktrail_rfkill_init();
- if (ret) {
- pr_warn("Setup rfkill failed\n");
- goto err_rfkill;
- }
-
- pr_info("Driver "DRIVER_VERSION" successfully loaded\n");
- return 0;
-
-err_rfkill:
- oaktrail_backlight_exit();
-err_backlight:
- platform_device_del(oaktrail_device);
-err_device_add:
- platform_device_put(oaktrail_device);
-err_device_alloc:
- platform_driver_unregister(&oaktrail_driver);
-err_driver_reg:
-
- return ret;
-}
-
-static void __exit oaktrail_cleanup(void)
-{
- oaktrail_backlight_exit();
- oaktrail_rfkill_cleanup();
- platform_device_unregister(oaktrail_device);
- platform_driver_unregister(&oaktrail_driver);
-
- pr_info("Driver unloaded\n");
-}
-
-module_init(oaktrail_init);
-module_exit(oaktrail_cleanup);
-
-MODULE_AUTHOR("Yin Kangkai (kangkai.yin@intel.com)");
-MODULE_DESCRIPTION("Intel Oaktrail Platform ACPI Extras");
-MODULE_VERSION(DRIVER_VERSION);
-MODULE_LICENSE("GPL");
projects / linux.git / commitdiff