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platform/x86: fujitsu-laptop: remove pf_device field from struct fujitsu_bl 

Both struct fujitsu_bl and struct fujitsu_laptop have a pf_device field.
Up until now the latter has been redundant, which is logically incorrect
because the primary function of the platform device created by
fujitsu-laptop is to provide laptop-related (not brightness-related)
attributes to userspace.

Remove the pf_device field from struct fujitsu_bl and make all module
code use the pf_device field of struct fujitsu_laptop instead.

Suggested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Tested-by: Jonathan Woithe <jwoithe@just42.net>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
This commit is contained in:
Michał Kępień 2017-03-14 11:26:31 +01:00 committed by Darren Hart (VMware)
parent c33f4c044d
commit 979800e73d
1 changed files with 12 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/platform/x86/fujitsu-laptop.c
View File

@ -138,7 +138,6 @@ struct fujitsu_bl {
struct input_dev *input;
char phys[32];
struct backlight_device *bl_device;
struct platform_device *pf_device;
int keycode1, keycode2, keycode3, keycode4, keycode5;
unsigned int max_brightness;
@ -769,15 +768,15 @@ static int fujitsu_laptop_platform_add(void)
{
int ret;
fujitsu_bl->pf_device = platform_device_alloc("fujitsu-laptop", -1);
if (!fujitsu_bl->pf_device)
fujitsu_laptop->pf_device = platform_device_alloc("fujitsu-laptop", -1);
if (!fujitsu_laptop->pf_device)
return -ENOMEM;
ret = platform_device_add(fujitsu_bl->pf_device);
ret = platform_device_add(fujitsu_laptop->pf_device);
if (ret)
goto err_put_platform_device;
ret = sysfs_create_group(&fujitsu_bl->pf_device->dev.kobj,
ret = sysfs_create_group(&fujitsu_laptop->pf_device->dev.kobj,
&fujitsu_pf_attribute_group);
if (ret)
goto err_del_platform_device;
@ -785,18 +784,18 @@ static int fujitsu_laptop_platform_add(void)
return 0;
err_del_platform_device:
platform_device_del(fujitsu_bl->pf_device);
platform_device_del(fujitsu_laptop->pf_device);
err_put_platform_device:
platform_device_put(fujitsu_bl->pf_device);
platform_device_put(fujitsu_laptop->pf_device);
return ret;
}
static void fujitsu_laptop_platform_remove(void)
{
sysfs_remove_group(&fujitsu_bl->pf_device->dev.kobj,
sysfs_remove_group(&fujitsu_laptop->pf_device->dev.kobj,
&fujitsu_pf_attribute_group);
platform_device_unregister(fujitsu_bl->pf_device);
platform_device_unregister(fujitsu_laptop->pf_device);
}
static int acpi_fujitsu_laptop_add(struct acpi_device *device)
@ -909,7 +908,7 @@ static int acpi_fujitsu_laptop_add(struct acpi_device *device)
#if IS_ENABLED(CONFIG_LEDS_CLASS)
if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
result = led_classdev_register(&fujitsu_bl->pf_device->dev,
result = led_classdev_register(&fujitsu_laptop->pf_device->dev,
&logolamp_led);
if (result == 0) {
fujitsu_laptop->logolamp_registered = 1;
@ -921,7 +920,7 @@ static int acpi_fujitsu_laptop_add(struct acpi_device *device)
if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
(call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
result = led_classdev_register(&fujitsu_bl->pf_device->dev,
result = led_classdev_register(&fujitsu_laptop->pf_device->dev,
&kblamps_led);
if (result == 0) {
fujitsu_laptop->kblamps_registered = 1;
@ -938,7 +937,7 @@ static int acpi_fujitsu_laptop_add(struct acpi_device *device)
* that an RF LED is present.
*/
if (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) & BIT(24)) {
result = led_classdev_register(&fujitsu_bl->pf_device->dev,
result = led_classdev_register(&fujitsu_laptop->pf_device->dev,
&radio_led);
if (result == 0) {
fujitsu_laptop->radio_led_registered = 1;
@ -955,7 +954,7 @@ static int acpi_fujitsu_laptop_add(struct acpi_device *device)
*/
if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & BIT(14)) &&
(call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0) != UNSUPPORTED_CMD)) {
result = led_classdev_register(&fujitsu_bl->pf_device->dev,
result = led_classdev_register(&fujitsu_laptop->pf_device->dev,
&eco_led);
if (result == 0) {
fujitsu_laptop->eco_led_registered = 1;