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sony-laptop: add panel_id function

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Signed-off-by: Javier Achirica <jachirica@gmail.com>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
This commit is contained in:
Javier Achirica 2014-03-21 08:01:14 +09:00 committed by Matthew Garrett
parent 3531207605
commit 9e04c9080d
1 changed files with 59 additions and 0 deletions
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59
drivers/platform/x86/sony-laptop.c
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@ -164,6 +164,9 @@ static int __sony_nc_gfx_switch_status_get(void);
static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
static int sony_nc_panelid_setup(struct platform_device *pd);
static void sony_nc_panelid_cleanup(struct platform_device *pd);
static int sony_nc_touchpad_setup(struct platform_device *pd,
unsigned int handle);
static void sony_nc_touchpad_cleanup(struct platform_device *pd);
@ -1385,6 +1388,12 @@ static void sony_nc_function_setup(struct acpi_device *device,
pr_err("couldn't set up keyboard backlight function (%d)\n",
result);
break;
case 0x011D:
result = sony_nc_panelid_setup(pf_device);
if (result)
pr_err("couldn't set up panel ID function (%d)\n",
result);
break;
default:
continue;
}
@ -1449,6 +1458,9 @@ static void sony_nc_function_cleanup(struct platform_device *pd)
case 0x0163:
sony_nc_kbd_backlight_cleanup(pd, handle);
break;
case 0x011D:
sony_nc_panelid_cleanup(pd);
break;
default:
continue;
}
@ -2540,6 +2552,53 @@ static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
}
}
/* Panel ID function */
static struct device_attribute *panel_handle;
static ssize_t sony_nc_panelid_show(struct device *dev,
struct device_attribute *attr, char *buffer)
{
unsigned int result;
if (sony_call_snc_handle(0x011D, 0x0000, &result))
return -EIO;
return snprintf(buffer, PAGE_SIZE, "%d\n", result);
}
static int sony_nc_panelid_setup(struct platform_device *pd)
{
unsigned int result;
panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
if (!panel_handle)
return -ENOMEM;
sysfs_attr_init(&panel_handle->attr);
panel_handle->attr.name = "panel_id";
panel_handle->attr.mode = S_IRUGO;
panel_handle->show = sony_nc_panelid_show;
panel_handle->store = NULL;
result = device_create_file(&pd->dev, panel_handle);
if (result) {
kfree(panel_handle);
panel_handle = NULL;
return result;
}
return 0;
}
static void sony_nc_panelid_cleanup(struct platform_device *pd)
{
if (panel_handle) {
device_remove_file(&pd->dev, panel_handle);
kfree(panel_handle);
panel_handle = NULL;
}
}
/* Touchpad enable/disable */
struct touchpad_control {
struct device_attribute attr;