Similarly to the previous patch for the HDA controller make sure here that codecs also drop the display power reference during shutdown and reboot. This fixes a power ref leaked WARN in i915 during shutdown if the HDA driver is built with CONFIG_PM=n. Suggested-by: Takashi Iwai <tiwai@xxxxxxx> References: https://gitlab.freedesktop.org/drm/intel/-/issues/3618 References: https://lore.kernel.org/intel-gfx/s5hzgvhngw6.wl-tiwai@xxxxxxx Cc: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx> --- sound/pci/hda/hda_bind.c | 7 +++++-- sound/pci/hda/hda_codec.c | 10 +++++----- sound/pci/hda/hda_local.h | 2 ++ 3 files changed, 12 insertions(+), 7 deletions(-) diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c index 17a25e453f60c..e8dee24c309da 100644 --- a/sound/pci/hda/hda_bind.c +++ b/sound/pci/hda/hda_bind.c @@ -167,8 +167,11 @@ static void hda_codec_driver_shutdown(struct device *dev) { struct hda_codec *codec = dev_to_hda_codec(dev); - if (!pm_runtime_suspended(dev) && codec->patch_ops.reboot_notify) - codec->patch_ops.reboot_notify(codec); + if (!pm_runtime_suspended(dev)) { + if (codec->patch_ops.reboot_notify) + codec->patch_ops.reboot_notify(codec); + snd_hda_codec_display_power(codec, false); + } } int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name, diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 5462f771c2f90..7a717e1511569 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -798,7 +798,7 @@ static unsigned int hda_set_power_state(struct hda_codec *codec, unsigned int power_state); /* enable/disable display power per codec */ -static void codec_display_power(struct hda_codec *codec, bool enable) +void snd_hda_codec_display_power(struct hda_codec *codec, bool enable) { if (codec->display_power_control) snd_hdac_display_power(&codec->bus->core, codec->addr, enable); @@ -810,7 +810,7 @@ void snd_hda_codec_register(struct hda_codec *codec) if (codec->registered) return; if (device_is_registered(hda_codec_dev(codec))) { - codec_display_power(codec, true); + snd_hda_codec_display_power(codec, true); pm_runtime_enable(hda_codec_dev(codec)); /* it was powered up in snd_hda_codec_new(), now all done */ snd_hda_power_down(codec); @@ -836,7 +836,7 @@ static int snd_hda_codec_dev_free(struct snd_device *device) */ if (codec->core.type == HDA_DEV_LEGACY) snd_hdac_device_unregister(&codec->core); - codec_display_power(codec, false); + snd_hda_codec_display_power(codec, false); /* * In the case of ASoC HD-audio bus, the device refcount is released in @@ -2893,7 +2893,7 @@ static int hda_codec_runtime_suspend(struct device *dev) (codec_has_clkstop(codec) && codec_has_epss(codec) && (state & AC_PWRST_CLK_STOP_OK))) snd_hdac_codec_link_down(&codec->core); - codec_display_power(codec, false); + snd_hda_codec_display_power(codec, false); return 0; } @@ -2905,7 +2905,7 @@ static int hda_codec_runtime_resume(struct device *dev) if (!codec->card) return 0; - codec_display_power(codec, true); + snd_hda_codec_display_power(codec, true); snd_hdac_codec_link_up(&codec->core); hda_call_codec_resume(codec); pm_runtime_mark_last_busy(dev); diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index 4c5589c10f1d6..8d2503e8dad86 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -709,6 +709,8 @@ void snd_hdmi_write_eld_info(struct hdmi_eld *eld, #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80 void snd_print_channel_allocation(int spk_alloc, char *buf, int buflen); +void snd_hda_codec_display_power(struct hda_codec *codec, bool enable); + /* */ #define codec_err(codec, fmt, args...) \ -- 2.27.0
