[pull] master from torvalds:master

MAINTAINERS

@@ -9629,7 +9629,7 @@ F:	include/uapi/linux/isst_if.h
 F:	tools/power/x86/intel-speed-select/
 
 INTEL STRATIX10 FIRMWARE DRIVERS
-M:	Richard Gong <richard.gong@linux.intel.com>
+M:	Dinh Nguyen <dinguyen@kernel.org>
 L:	linux-kernel@vger.kernel.org
 S:	Maintained
 F:	Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu

include/sound/hda_codec.h

@@ -224,6 +224,7 @@ struct hda_codec {
 #endif
 
 	/* misc flags */
+	unsigned int configured:1; /* codec was configured */
 	unsigned int in_freeing:1; /* being released */
 	unsigned int registered:1; /* codec was registered */
 	unsigned int display_power_control:1; /* needs display power */

sound/core/pcm_compat.c

@@ -468,6 +468,76 @@ static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream,
 }
 #endif /* CONFIG_X86_X32 */
 
+#ifdef __BIG_ENDIAN
+typedef char __pad_before_u32[4];
+typedef char __pad_after_u32[0];
+#else
+typedef char __pad_before_u32[0];
+typedef char __pad_after_u32[4];
+#endif
+
+/* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min
+ * at the wrong offset due to a typo in padding type.
+ * The bug hits only 32bit.
+ * A workaround for incorrect read/write is needed only in 32bit compat mode.
+ */
+struct __snd_pcm_mmap_control64_buggy {
+	__pad_before_u32 __pad1;
+	__u32 appl_ptr;
+	__pad_before_u32 __pad2;	/* SiC! here is the bug */
+	__pad_before_u32 __pad3;
+	__u32 avail_min;
+	__pad_after_uframe __pad4;
+};
+
+static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream,
+					struct snd_pcm_sync_ptr __user *_sync_ptr)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_pcm_sync_ptr sync_ptr;
+	struct __snd_pcm_mmap_control64_buggy *sync_cp;
+	volatile struct snd_pcm_mmap_status *status;
+	volatile struct snd_pcm_mmap_control *control;
+	int err;
+
+	memset(&sync_ptr, 0, sizeof(sync_ptr));
+	sync_cp = (struct __snd_pcm_mmap_control64_buggy *)&sync_ptr.c.control;
+	if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags)))
+		return -EFAULT;
+	if (copy_from_user(sync_cp, &(_sync_ptr->c.control), sizeof(*sync_cp)))
+		return -EFAULT;
+	status = runtime->status;
+	control = runtime->control;
+	if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
+		err = snd_pcm_hwsync(substream);
+		if (err < 0)
+			return err;
+	}
+	snd_pcm_stream_lock_irq(substream);
+	if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) {
+		err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr);
+		if (err < 0) {
+			snd_pcm_stream_unlock_irq(substream);
+			return err;
+		}
+	} else {
+		sync_cp->appl_ptr = control->appl_ptr;
+	}
+	if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
+		control->avail_min = sync_cp->avail_min;
+	else
+		sync_cp->avail_min = control->avail_min;
+	sync_ptr.s.status.state = status->state;
+	sync_ptr.s.status.hw_ptr = status->hw_ptr;
+	sync_ptr.s.status.tstamp = status->tstamp;
+	sync_ptr.s.status.suspended_state = status->suspended_state;
+	sync_ptr.s.status.audio_tstamp = status->audio_tstamp;
+	snd_pcm_stream_unlock_irq(substream);
+	if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr)))
+		return -EFAULT;
+	return 0;
+}
+
 /*
  */
 enum {
@@ -537,7 +607,7 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l
 		if (in_x32_syscall())
 			return snd_pcm_ioctl_sync_ptr_x32(substream, argp);
 #endif /* CONFIG_X86_X32 */
-		return snd_pcm_common_ioctl(file, substream, cmd, argp);
+		return snd_pcm_ioctl_sync_ptr_buggy(substream, argp);
 	case SNDRV_PCM_IOCTL_HW_REFINE32:
 		return snd_pcm_ioctl_hw_params_compat(substream, 1, argp);
 	case SNDRV_PCM_IOCTL_HW_PARAMS32:

sound/core/seq_device.c

@@ -156,6 +156,8 @@ static int snd_seq_device_dev_free(struct snd_device *device)
 	struct snd_seq_device *dev = device->device_data;
 
 	cancel_autoload_drivers();
+	if (dev->private_free)
+		dev->private_free(dev);
 	put_device(&dev->dev);
 	return 0;
 }
@@ -183,11 +185,7 @@ static int snd_seq_device_dev_disconnect(struct snd_device *device)
 
 static void snd_seq_dev_release(struct device *dev)
 {
-	struct snd_seq_device *sdev = to_seq_dev(dev);
-
-	if (sdev->private_free)
-		sdev->private_free(sdev);
-	kfree(sdev);
+	kfree(to_seq_dev(dev));
 }
 
 /*

sound/hda/hdac_controller.c

@@ -421,8 +421,9 @@ int snd_hdac_bus_reset_link(struct hdac_bus *bus, bool full_reset)
 	if (!full_reset)
 		goto skip_reset;
 
-	/* clear STATESTS */
-	snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK);
+	/* clear STATESTS if not in reset */
+	if (snd_hdac_chip_readb(bus, GCTL) & AZX_GCTL_RESET)
+		snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK);
 
 	/* reset controller */
 	snd_hdac_bus_enter_link_reset(bus);

sound/pci/hda/hda_bind.c

@@ -298,29 +298,31 @@ int snd_hda_codec_configure(struct hda_codec *codec)
 {
 	int err;
 
+	if (codec->configured)
+		return 0;
+
 	if (is_generic_config(codec))
 		codec->probe_id = HDA_CODEC_ID_GENERIC;
 	else
 		codec->probe_id = 0;
 
-	err = snd_hdac_device_register(&codec->core);
-	if (err < 0)
-		return err;
+	if (!device_is_registered(&codec->core.dev)) {
+		err = snd_hdac_device_register(&codec->core);
+		if (err < 0)
+			return err;
+	}
 
 	if (!codec->preset)
 		codec_bind_module(codec);
 	if (!codec->preset) {
 		err = codec_bind_generic(codec);
 		if (err < 0) {
-			codec_err(codec, "Unable to bind the codec\n");
-			goto error;
+			codec_dbg(codec, "Unable to bind the codec\n");
+			return err;
 		}
 	}
 
+	codec->configured = 1;
 	return 0;
-
- error:
-	snd_hdac_device_unregister(&codec->core);
-	return err;
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_configure);

sound/pci/hda/hda_codec.c

@@ -791,6 +791,7 @@ void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
 	snd_array_free(&codec->nids);
 	remove_conn_list(codec);
 	snd_hdac_regmap_exit(&codec->core);
+	codec->configured = 0;
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup_for_unbind);
 

sound/pci/hda/hda_controller.c

@@ -25,6 +25,7 @@
 #include <sound/core.h>
 #include <sound/initval.h>
 #include "hda_controller.h"
+#include "hda_local.h"
 
 #define CREATE_TRACE_POINTS
 #include "hda_controller_trace.h"
@@ -1248,17 +1249,24 @@ EXPORT_SYMBOL_GPL(azx_probe_codecs);
 int azx_codec_configure(struct azx *chip)
 {
 	struct hda_codec *codec, *next;
+	int success = 0;
 
-	/* use _safe version here since snd_hda_codec_configure() deregisters
-	 * the device upon error and deletes itself from the bus list.
-	 */
-	list_for_each_codec_safe(codec, next, &chip->bus) {
-		snd_hda_codec_configure(codec);
+	list_for_each_codec(codec, &chip->bus) {
+		if (!snd_hda_codec_configure(codec))
+			success++;
 	}
 
-	if (!azx_bus(chip)->num_codecs)
-		return -ENODEV;
-	return 0;
+	if (success) {
+		/* unregister failed codecs if any codec has been probed */
+		list_for_each_codec_safe(codec, next, &chip->bus) {
+			if (!codec->configured) {
+				codec_err(codec, "Unable to configure, disabling\n");
+				snd_hdac_device_unregister(&codec->core);
+			}
+		}
+	}
+
+	return success ? 0 : -ENODEV;
 }
 EXPORT_SYMBOL_GPL(azx_codec_configure);
 

sound/pci/hda/hda_controller.h

@@ -41,7 +41,7 @@
 /* 24 unused */
 #define AZX_DCAPS_COUNT_LPIB_DELAY  (1 << 25)	/* Take LPIB as delay */
 #define AZX_DCAPS_PM_RUNTIME	(1 << 26)	/* runtime PM support */
-/* 27 unused */
+#define AZX_DCAPS_RETRY_PROBE	(1 << 27)	/* retry probe if no codec is configured */
 #define AZX_DCAPS_CORBRP_SELF_CLEAR (1 << 28)	/* CORBRP clears itself after reset */
 #define AZX_DCAPS_NO_MSI64      (1 << 29)	/* Stick to 32-bit MSIs */
 #define AZX_DCAPS_SEPARATE_STREAM_TAG	(1 << 30) /* capture and playback use separate stream tag */

sound/pci/hda/hda_intel.c

@@ -307,7 +307,8 @@ enum {
 /* quirks for AMD SB */
 #define AZX_DCAPS_PRESET_AMD_SB \
 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
-	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME)
+	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
+	 AZX_DCAPS_RETRY_PROBE)
 
 /* quirks for Nvidia */
 #define AZX_DCAPS_PRESET_NVIDIA \
@@ -1723,7 +1724,7 @@ static void azx_check_snoop_available(struct azx *chip)
 
 static void azx_probe_work(struct work_struct *work)
 {
-	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
+	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
 	azx_probe_continue(&hda->chip);
 }
 
@@ -1828,7 +1829,7 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci,
 	}
 
 	/* continue probing in work context as may trigger request module */
-	INIT_WORK(&hda->probe_work, azx_probe_work);
+	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
 
 	*rchip = chip;
 
@@ -2142,7 +2143,7 @@ static int azx_probe(struct pci_dev *pci,
 #endif
 
 	if (schedule_probe)
-		schedule_work(&hda->probe_work);
+		schedule_delayed_work(&hda->probe_work, 0);
 
 	dev++;
 	if (chip->disabled)
@@ -2228,6 +2229,11 @@ static int azx_probe_continue(struct azx *chip)
 	int dev = chip->dev_index;
 	int err;
 
+	if (chip->disabled || hda->init_failed)
+		return -EIO;
+	if (hda->probe_retry)
+		goto probe_retry;
+
 	to_hda_bus(bus)->bus_probing = 1;
 	hda->probe_continued = 1;
 
@@ -2289,10 +2295,20 @@ static int azx_probe_continue(struct azx *chip)
 #endif
 	}
 #endif
+
+ probe_retry:
 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
 		err = azx_codec_configure(chip);
-		if (err < 0)
+		if (err) {
+			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
+			    ++hda->probe_retry < 60) {
+				schedule_delayed_work(&hda->probe_work,
+						      msecs_to_jiffies(1000));
+				return 0; /* keep things up */
+			}
+			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
 			goto out_free;
+		}
 	}
 
 	err = snd_card_register(chip->card);
@@ -2322,6 +2338,7 @@ static int azx_probe_continue(struct azx *chip)
 		display_power(chip, false);
 	complete_all(&hda->probe_wait);
 	to_hda_bus(bus)->bus_probing = 0;
+	hda->probe_retry = 0;
 	return 0;
 }
 
@@ -2347,7 +2364,7 @@ static void azx_remove(struct pci_dev *pci)
 		 * device during cancel_work_sync() call.
 		 */
 		device_unlock(&pci->dev);
-		cancel_work_sync(&hda->probe_work);
+		cancel_delayed_work_sync(&hda->probe_work);
 		device_lock(&pci->dev);
 
 		snd_card_free(card);

sound/pci/hda/hda_intel.h

@@ -14,7 +14,7 @@ struct hda_intel {
 
 	/* sync probing */
 	struct completion probe_wait;
-	struct work_struct probe_work;
+	struct delayed_work probe_work;
 
 	/* card list (for power_save trigger) */
 	struct list_head list;
@@ -30,6 +30,8 @@ struct hda_intel {
 	unsigned int freed:1; /* resources already released */
 
 	bool need_i915_power:1; /* the hda controller needs i915 power */
+
+	int probe_retry;	/* being probe-retry */
 };
 
 #endif