/* Helper functions for Thinkpad LED control; * to be included from codec driver */ #if IS_ENABLED(CONFIG_THINKPAD_ACPI) #include #include static int (*led_set_func)(int, bool); static void (*old_vmaster_hook)(void *, int); static bool is_thinkpad(struct hda_codec *codec) { return (codec->core.subsystem_id >> 16 == 0x17aa) && (acpi_dev_found("LEN0068") || acpi_dev_found("LEN0268") || acpi_dev_found("IBM0068")); } static void update_tpacpi_mute_led(void *private_data, int enabled) { if (old_vmaster_hook) old_vmaster_hook(private_data, enabled); if (led_set_func) led_set_func(TPACPI_LED_MUTE, !enabled); } static void update_tpacpi_micmute_led(struct hda_codec *codec, struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { if (!ucontrol || !led_set_func) return; if (strcmp("Capture Switch", ucontrol->id.name) == 0 && ucontrol->id.index == 0) { /* TODO: How do I verify if it's a mono or stereo here? */ bool val = ucontrol->value.integer.value[0] || ucontrol->value.integer.value[1]; led_set_func(TPACPI_LED_MICMUTE, !val); } } static void hda_fixup_thinkpad_acpi(struct hda_codec *codec, const struct hda_fixup *fix, int action) { struct hda_gen_spec *spec = codec->spec; bool removefunc = false; if (action == HDA_FIXUP_ACT_PROBE) { if (!is_thinkpad(codec)) return; if (!led_set_func) led_set_func = symbol_request(tpacpi_led_set); if (!led_set_func) { codec_warn(codec, "Failed to find thinkpad-acpi symbol tpacpi_led_set\n"); return; } removefunc = true; if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { old_vmaster_hook = spec->vmaster_mute.hook; spec->vmaster_mute.hook = update_tpacpi_mute_led; removefunc = false; } if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { if (spec->num_adc_nids > 1 && !spec->dyn_adc_switch) codec_dbg(codec, "Skipping micmute LED control due to several ADCs"); else { spec->cap_sync_hook = update_tpacpi_micmute_led; removefunc = false; } } } if (led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) { symbol_put(tpacpi_led_set); led_set_func = NULL; old_vmaster_hook = NULL; } } #else /* CONFIG_THINKPAD_ACPI */ static void hda_fixup_thinkpad_acpi(struct hda_codec *codec, const struct hda_fixup *fix, int action) { } #endif /* CONFIG_THINKPAD_ACPI */ g msg
path: root/tools/perf/pmu-events/README
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authorLuuk Paulussen <luuk.paulussen@alliedtelesis.co.nz>2016-12-08 11:43:34 +1300
committerRalf Baechle <ralf@linux-mips.org>2016-12-11 11:19:04 +0100
commitedb6fa1a6452edf736c04d02e3f6de59043df69e (patch)
treef854dd896b1e5033a26f305ec9a50a87b1b13939 /tools/perf/pmu-events/README
parent3e5de27e940d00d8d504dfb96625fb654f641509 (diff)
MIPS: Return -ENODEV from weak implementation of rtc_mips_set_time
The sync_cmos_clock function in kernel/time/ntp.c first tries to update the internal clock of the cpu by calling the "update_persistent_clock64" architecture specific function. If this returns -ENODEV, it then tries to update an external RTC using "rtc_set_ntp_time". On the mips architecture, the weak implementation of the underlying function would return 0 if it wasn't overridden. This meant that the sync_cmos_clock function would never try to update an external RTC (if both CONFIG_GENERIC_CMOS_UPDATE and CONFIG_RTC_SYSTOHC are configured) Returning -ENODEV instead, means that an external RTC will be tried. Signed-off-by: Luuk Paulussen <luuk.paulussen@alliedtelesis.co.nz> Reviewed-by: Richard Laing <richard.laing@alliedtelesis.co.nz> Reviewed-by: Scott Parlane <scott.parlane@alliedtelesis.co.nz> Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14649/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'tools/perf/pmu-events/README')