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| author |   Lukas Wunner <lukas@wunner.de> | 2016-01-14 22:05:03 +0100 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2016-02-21 09:16:00 +0100 |
| commit | c3a900581e1137bdc2efc25325d99fcc9bb9ab1e (patch) | |
| tree | 5bc4f7e96c95aa690e767410135851c764b61681 /sound/pci/hda/thinkpad_helper.c | |
| parent | ALSA: fireworks: serialize transactions to update connections at bus reset (diff) | |
| download | linux-dev-c3a900581e1137bdc2efc25325d99fcc9bb9ab1e.tar.xz linux-dev-c3a900581e1137bdc2efc25325d99fcc9bb9ab1e.zip | |
ALSA: hda - Use acpi_dev_present()
Use shiny new acpi_dev_present() and remove all the boilerplate
to search for a particular ACPI device. No functional change.
Cf. 2d12b6b381ba ("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>
Diffstat (limited to 'sound/pci/hda/thinkpad_helper.c')
| -rw-r--r-- | sound/pci/hda/thinkpad_helper.c | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c index 0a4ad5feb82e..59ab6cee1ad8 100644 --- a/sound/pci/hda/thinkpad_helper.c +++ b/sound/pci/hda/thinkpad_helper.c @@ -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) |