ALSA: hda - Yet another fix for D3 stop-clock refcounting

[firefly-linux-kernel-4.4.55.git] / sound / pci / hda / hda_codec.h

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 7fbc1bcaf1a9593b6e0ec71b8b5ac2bb5262e336..8fd9f636cfe1b4767cd97fc1fd3778e12bb17ce0 100644 (file)
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -386,6 +386,10 @@ enum {
 /* DIGITAL2 bits */
 #define AC_DIG2_CC                     (0x7f<<0)
 
+/* DIGITAL3 bits */
+#define AC_DIG3_ICT                    (0xf<<0)
+#define AC_DIG3_KAE                    (1<<7)
+
 /* Pin widget control - 8bit */
 #define AC_PINCTL_EPT                  (0x3<<0)
 #define AC_PINCTL_EPT_NATIVE           0
@@ -610,9 +614,9 @@ struct hda_bus_ops {
                          struct hda_pcm *pcm);
        /* reset bus for retry verb */
        void (*bus_reset)(struct hda_bus *bus);
-#ifdef CONFIG_SND_HDA_POWER_SAVE
+#ifdef CONFIG_PM
        /* notify power-up/down from codec to controller */
-       void (*pm_notify)(struct hda_bus *bus);
+       void (*pm_notify)(struct hda_bus *bus, bool power_up);
 #endif
 };
 
@@ -708,8 +712,6 @@ struct hda_codec_ops {
 #ifdef CONFIG_PM
        int (*suspend)(struct hda_codec *codec);
        int (*resume)(struct hda_codec *codec);
-#endif
-#ifdef CONFIG_SND_HDA_POWER_SAVE
        int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
 #endif
        void (*reboot_notify)(struct hda_codec *codec);
@@ -862,8 +864,11 @@ struct hda_codec {
        unsigned int ignore_misc_bit:1; /* ignore MISC_NO_PRESENCE bit */
        unsigned int no_jack_detect:1;  /* Machine has no jack-detection */
        unsigned int pcm_format_first:1; /* PCM format must be set first */
-#ifdef CONFIG_SND_HDA_POWER_SAVE
+       unsigned int epss:1;            /* supporting EPSS? */
+#ifdef CONFIG_PM
        unsigned int power_on :1;       /* current (global) power-state */
+       unsigned int d3_stop_clk:1;     /* support D3 operation without BCLK */
+       unsigned int pm_down_notified:1; /* PM notified to controller */
        int power_transition;   /* power-state in transition */
        int power_count;        /* current (global) power refcount */
        struct delayed_work power_work; /* delayed task for powerdown */
@@ -1041,7 +1046,7 @@ int snd_hda_resume(struct hda_bus *bus);
 static inline
 int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
 {
-#ifdef CONFIG_SND_HDA_POWER_SAVE
+#ifdef CONFIG_PM
        if (codec->patch_ops.check_power_status)
                return codec->patch_ops.check_power_status(codec, nid);
 #endif
@@ -1058,22 +1063,70 @@ const char *snd_hda_get_jack_location(u32 cfg);
 /*
  * power saving
  */
-#ifdef CONFIG_SND_HDA_POWER_SAVE
-void snd_hda_power_up(struct hda_codec *codec);
-void snd_hda_power_up_d3wait(struct hda_codec *codec);
-void snd_hda_power_down(struct hda_codec *codec);
+#ifdef CONFIG_PM
+void snd_hda_power_save(struct hda_codec *codec, int delta, bool d3wait);
 void snd_hda_update_power_acct(struct hda_codec *codec);
 #else
-static inline void snd_hda_power_up(struct hda_codec *codec) {}
-static inline void snd_hda_power_up_d3wait(struct hda_codec *codec) {}
-static inline void snd_hda_power_down(struct hda_codec *codec) {}
+static inline void snd_hda_power_save(struct hda_codec *codec, int delta,
+                                     bool d3wait) {}
 #endif
 
+/**
+ * snd_hda_power_up - Power-up the codec
+ * @codec: HD-audio codec
+ *
+ * Increment the power-up counter and power up the hardware really when
+ * not turned on yet.
+ */
+static inline void snd_hda_power_up(struct hda_codec *codec)
+{
+       snd_hda_power_save(codec, 1, false);
+}
+
+/**
+ * snd_hda_power_up_d3wait - Power-up the codec after waiting for any pending
+ *   D3 transition to complete.  This differs from snd_hda_power_up() when
+ *   power_transition == -1.  snd_hda_power_up sees this case as a nop,
+ *   snd_hda_power_up_d3wait waits for the D3 transition to complete then powers
+ *   back up.
+ * @codec: HD-audio codec
+ *
+ * Cancel any power down operation hapenning on the work queue, then power up.
+ */
+static inline void snd_hda_power_up_d3wait(struct hda_codec *codec)
+{
+       snd_hda_power_save(codec, 1, true);
+}
+
+/**
+ * snd_hda_power_down - Power-down the codec
+ * @codec: HD-audio codec
+ *
+ * Decrement the power-up counter and schedules the power-off work if
+ * the counter rearches to zero.
+ */
+static inline void snd_hda_power_down(struct hda_codec *codec)
+{
+       snd_hda_power_save(codec, -1, false);
+}
+
+/**
+ * snd_hda_power_sync - Synchronize the power-save status
+ * @codec: HD-audio codec
+ *
+ * Synchronize the actual power state with the power account;
+ * called when power_save parameter is changed
+ */
+static inline void snd_hda_power_sync(struct hda_codec *codec)
+{
+       snd_hda_power_save(codec, 0, false);
+}
+
 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 /*
  * patch firmware
  */
-int snd_hda_load_patch(struct hda_bus *bus, const char *patch);
+int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
 #endif
 
 /*