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Date: Thu, 9 Dec 2010 15:56:59 +0800
From: Ike Panhc <ike.pan@...onical.com>
To: linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
linux-acpi@...r.kernel.org
Cc: Matthew Garrett <mjg@...hat.com>,
David Woodhouse <dwmw2@...radead.org>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Dave Hansen <dave@...ux.vnet.ibm.com>
Subject: [PATCH 2/7] ideapad: let camera power control entry under platform driver
The entry was at /sys/devices/LNXSYSTM:00/../VPC2004:00/camera_power
move to /sys/devices/platform/Ideapad/camera_power
Signed-off-by: Ike Panhc <ike.pan@...onical.com>
---
drivers/platform/x86/ideapad-laptop.c | 55 +++++++++++++++------------------
1 files changed, 25 insertions(+), 30 deletions(-)
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 62901e9..a6d3e04 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -282,6 +282,15 @@ static void ideapad_unregister_rfkill(struct acpi_device *adevice, int dev)
/*
* Platform device
*/
+static struct attribute *ideapad_attributes[] = {
+ &dev_attr_camera_power.attr,
+ NULL
+};
+
+static struct attribute_group ideapad_attribute_group = {
+ .attrs = ideapad_attributes
+};
+
static int __devinit ideapad_platform_init(void)
{
int result;
@@ -295,8 +304,14 @@ static int __devinit ideapad_platform_init(void)
if (result)
goto fail_platform_device;
+ result = sysfs_create_group(&ideapad_priv->platform_device->dev.kobj,
+ &ideapad_attribute_group);
+ if (result)
+ goto fail_sysfs;
return 0;
+fail_sysfs:
+ platform_device_del(ideapad_priv->platform_device);
fail_platform_device:
platform_device_put(ideapad_priv->platform_device);
return result;
@@ -304,6 +319,8 @@ fail_platform_device:
static void ideapad_platform_exit(void)
{
+ sysfs_remove_group(&ideapad_priv->platform_device->dev.kobj,
+ &ideapad_attribute_group);
platform_device_unregister(ideapad_priv->platform_device);
}
/* the above is platform device */
@@ -317,50 +334,30 @@ MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
static int ideapad_acpi_add(struct acpi_device *adevice)
{
int ret, i, cfg;
- int devs_present[5];
struct ideapad_private *priv;
if (read_method_int(adevice->handle, "_CFG", &cfg))
return -ENODEV;
- for (i = IDEAPAD_DEV_CAMERA; i < IDEAPAD_DEV_KILLSW; i++) {
- if (test_bit(ideapad_rfk_data[i].cfgbit, (unsigned long *)&cfg))
- devs_present[i] = 1;
- else
- devs_present[i] = 0;
- }
-
- /* The hardware switch is always present */
- devs_present[IDEAPAD_DEV_KILLSW] = 1;
-
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
ideapad_priv = priv;
+ priv->handle = adevice->handle;
+ dev_set_drvdata(&adevice->dev, priv);
ret = ideapad_platform_init();
if (ret)
goto platform_failed;
- if (devs_present[IDEAPAD_DEV_CAMERA]) {
- ret = device_create_file(&adevice->dev, &dev_attr_camera_power);
- if (ret)
- goto camera_failed;
- }
-
- priv->handle = adevice->handle;
- dev_set_drvdata(&adevice->dev, priv);
- for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++) {
- if (!devs_present[i])
- continue;
-
- ideapad_register_rfkill(adevice, i);
+ for (i = IDEAPAD_DEV_WLAN; i < IDEAPAD_DEV_KILLSW; i++) {
+ if (test_bit(ideapad_rfk_data[i].cfgbit, (unsigned long *)&cfg))
+ ideapad_register_rfkill(adevice, i);
}
ideapad_sync_rfk_state(adevice);
+
return 0;
-camera_failed:
- ideapad_platform_exit();
platform_failed:
kfree(priv);
return ret;
@@ -371,14 +368,12 @@ static int ideapad_acpi_remove(struct acpi_device *adevice, int type)
struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
int i;
- device_remove_file(&adevice->dev, &dev_attr_camera_power);
-
- for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++)
+ for (i = IDEAPAD_DEV_WLAN; i < IDEAPAD_DEV_KILLSW; i++)
ideapad_unregister_rfkill(adevice, i);
-
ideapad_platform_exit();
dev_set_drvdata(&adevice->dev, NULL);
kfree(priv);
+
return 0;
}
--
1.7.1
--
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