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ALSA: hda - Use acpi_dev_present()

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Use shiny new acpi_dev_present() and remove all the boilerplate
to search for a particular ACPI device. No functional change.
Cf. 2d12b6b381 ("ACPI / utils: Add acpi_dev_present()").

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Lukas Wunner 2016-01-14 22:05:03 +01:00 committed by Takashi Iwai
parent 99d7355914
commit c3a900581e
1 changed files with 2 additions and 15 deletions
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17
sound/pci/hda/thinkpad_helper.c
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@ -10,23 +10,10 @@
static int (*led_set_func)(int, bool);
static void (*old_vmaster_hook)(void *, int);
static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context,
void **rv)
{
bool *found = context;
*found = true;
return AE_OK;
}
static bool is_thinkpad(struct hda_codec *codec)
{
bool found = false;
if (codec->core.subsystem_id >> 16 != 0x17aa)
return false;
if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
return true;
found = false;
return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, &found, NULL)) && found;
return (codec->core.subsystem_id >> 16 == 0x17aa) &&
(acpi_dev_present("LEN0068") || acpi_dev_present("IBM0068"));
}
static void update_tpacpi_mute_led(void *private_data, int enabled)