brcm2708: rename target to bcm27xx

This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 301 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-4.19/950-0372-staging-bcm2835-audio-Clean-up-mutex-locks.patch b/target/linux/bcm27xx/patches-4.19/950-0372-staging-bcm2835-audio-Clean-up-mutex-locks.patch
new file mode 100644
index 0000000000..531fe9e818
--- /dev/null
+++ b/target/linux/bcm27xx/patches-4.19/950-0372-staging-bcm2835-audio-Clean-up-mutex-locks.patch
@@ -0,0 +1,301 @@
+From 96588b9ccaddd69a832a07e2e3f2f3299e6d6c3a Mon Sep 17 00:00:00 2001
+From: Takashi Iwai <tiwai@suse.de>
+Date: Tue, 4 Sep 2018 17:58:30 +0200
+Subject: [PATCH] staging: bcm2835-audio: Clean up mutex locks
+
+commit ce4bb1aa271a97047b80ac917a5d91b54925913b upstream.
+
+snd-bcm2835 driver takes the lock with mutex_lock_interruptible() in
+all places, which don't make sense.  Replace them with the simple
+mutex_lock().
+
+Also taking a mutex lock right after creating it for each PCM object
+is nonsense, too.  It cannot be racy at that point.  We can get rid of
+it.
+
+Last but not least, initializing chip->audio_mutex at each place is
+error-prone.  Initialize properly at creating the chip object in
+snd_bcm2835_create() instead.
+
+Signed-off-by: Takashi Iwai <tiwai@suse.de>
+Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ .../vc04_services/bcm2835-audio/bcm2835-ctl.c | 18 +++----
+ .../vc04_services/bcm2835-audio/bcm2835-pcm.c | 33 ++-----------
+ .../bcm2835-audio/bcm2835-vchiq.c             | 47 ++++---------------
+ .../vc04_services/bcm2835-audio/bcm2835.c     |  1 +
+ 4 files changed, 20 insertions(+), 79 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c
+@@ -77,8 +77,7 @@ static int snd_bcm2835_ctl_get(struct sn
+ {
+ 	struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol);
+ 
+-	if (mutex_lock_interruptible(&chip->audio_mutex))
+-		return -EINTR;
++	mutex_lock(&chip->audio_mutex);
+ 
+ 	BUG_ON(!chip && !(chip->avail_substreams & AVAIL_SUBSTREAMS_MASK));
+ 
+@@ -99,8 +98,7 @@ static int snd_bcm2835_ctl_put(struct sn
+ 	struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol);
+ 	int changed = 0;
+ 
+-	if (mutex_lock_interruptible(&chip->audio_mutex))
+-		return -EINTR;
++	mutex_lock(&chip->audio_mutex);
+ 
+ 	if (kcontrol->private_value == PCM_PLAYBACK_VOLUME) {
+ 		audio_info("Volume change attempted.. volume = %d new_volume = %d\n", chip->volume, (int)ucontrol->value.integer.value[0]);
+@@ -187,8 +185,7 @@ static int snd_bcm2835_spdif_default_get
+ 	struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol);
+ 	int i;
+ 
+-	if (mutex_lock_interruptible(&chip->audio_mutex))
+-		return -EINTR;
++	mutex_lock(&chip->audio_mutex);
+ 
+ 	for (i = 0; i < 4; i++)
+ 		ucontrol->value.iec958.status[i] =
+@@ -205,8 +202,7 @@ static int snd_bcm2835_spdif_default_put
+ 	unsigned int val = 0;
+ 	int i, change;
+ 
+-	if (mutex_lock_interruptible(&chip->audio_mutex))
+-		return -EINTR;
++	mutex_lock(&chip->audio_mutex);
+ 
+ 	for (i = 0; i < 4; i++)
+ 		val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8);
+@@ -251,8 +247,7 @@ static int snd_bcm2835_spdif_stream_get(
+ 	struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol);
+ 	int i;
+ 
+-	if (mutex_lock_interruptible(&chip->audio_mutex))
+-		return -EINTR;
++	mutex_lock(&chip->audio_mutex);
+ 
+ 	for (i = 0; i < 4; i++)
+ 		ucontrol->value.iec958.status[i] =
+@@ -269,8 +264,7 @@ static int snd_bcm2835_spdif_stream_put(
+ 	unsigned int val = 0;
+ 	int i, change;
+ 
+-	if (mutex_lock_interruptible(&chip->audio_mutex))
+-		return -EINTR;
++	mutex_lock(&chip->audio_mutex);
+ 
+ 	for (i = 0; i < 4; i++)
+ 		val |= (unsigned int)ucontrol->value.iec958.status[i] << (i * 8);
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+@@ -99,10 +99,7 @@ static int snd_bcm2835_playback_open_gen
+ 	int idx;
+ 	int err;
+ 
+-	if (mutex_lock_interruptible(&chip->audio_mutex)) {
+-		audio_error("Interrupted whilst waiting for lock\n");
+-		return -EINTR;
+-	}
++	mutex_lock(&chip->audio_mutex);
+ 	audio_info("Alsa open (%d)\n", substream->number);
+ 	idx = substream->number;
+ 
+@@ -194,10 +191,7 @@ static int snd_bcm2835_playback_close(st
+ 	struct bcm2835_alsa_stream *alsa_stream;
+ 
+ 	chip = snd_pcm_substream_chip(substream);
+-	if (mutex_lock_interruptible(&chip->audio_mutex)) {
+-		audio_error("Interrupted whilst waiting for lock\n");
+-		return -EINTR;
+-	}
++	mutex_lock(&chip->audio_mutex);
+ 	runtime = substream->runtime;
+ 	alsa_stream = runtime->private_data;
+ 
+@@ -274,8 +268,7 @@ static int snd_bcm2835_pcm_prepare(struc
+ 	int channels;
+ 	int err;
+ 
+-	if (mutex_lock_interruptible(&chip->audio_mutex))
+-		return -EINTR;
++	mutex_lock(&chip->audio_mutex);
+ 
+ 	/* notify the vchiq that it should enter spdif passthrough mode by
+ 	 * setting channels=0 (see
+@@ -449,14 +442,9 @@ int snd_bcm2835_new_pcm(struct bcm2835_c
+ 	struct snd_pcm *pcm;
+ 	int err;
+ 
+-	mutex_init(&chip->audio_mutex);
+-	if (mutex_lock_interruptible(&chip->audio_mutex)) {
+-		audio_error("Interrupted whilst waiting for lock\n");
+-		return -EINTR;
+-	}
+ 	err = snd_pcm_new(chip->card, "bcm2835 ALSA", 0, numchannels, 0, &pcm);
+ 	if (err < 0)
+-		goto out;
++		return err;
+ 	pcm->private_data = chip;
+ 	strcpy(pcm->name, "bcm2835 ALSA");
+ 	chip->pcm = pcm;
+@@ -474,9 +462,6 @@ int snd_bcm2835_new_pcm(struct bcm2835_c
+ 					      snd_bcm2835_playback_hw.buffer_bytes_max,
+ 					      snd_bcm2835_playback_hw.buffer_bytes_max);
+ 
+-out:
+-	mutex_unlock(&chip->audio_mutex);
+-
+ 	return 0;
+ }
+ 
+@@ -485,13 +470,9 @@ int snd_bcm2835_new_spdif_pcm(struct bcm
+ 	struct snd_pcm *pcm;
+ 	int err;
+ 
+-	if (mutex_lock_interruptible(&chip->audio_mutex)) {
+-		audio_error("Interrupted whilst waiting for lock\n");
+-		return -EINTR;
+-	}
+ 	err = snd_pcm_new(chip->card, "bcm2835 ALSA", 1, 1, 0, &pcm);
+ 	if (err < 0)
+-		goto out;
++		return err;
+ 
+ 	pcm->private_data = chip;
+ 	strcpy(pcm->name, "bcm2835 IEC958/HDMI");
+@@ -504,8 +485,6 @@ int snd_bcm2835_new_spdif_pcm(struct bcm
+ 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
+ 		snd_dma_continuous_data(GFP_KERNEL),
+ 		snd_bcm2835_playback_spdif_hw.buffer_bytes_max, snd_bcm2835_playback_spdif_hw.buffer_bytes_max);
+-out:
+-	mutex_unlock(&chip->audio_mutex);
+ 
+ 	return 0;
+ }
+@@ -518,8 +497,6 @@ int snd_bcm2835_new_simple_pcm(struct bc
+ 	struct snd_pcm *pcm;
+ 	int err;
+ 
+-	mutex_init(&chip->audio_mutex);
+-
+ 	err = snd_pcm_new(chip->card, name, 0, numchannels,
+ 			  0, &pcm);
+ 	if (err)
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
+@@ -319,11 +319,7 @@ static int vc_vchi_audio_deinit(struct b
+ 	}
+ 
+ 	LOG_DBG(" .. about to lock (%d)\n", instance->num_connections);
+-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
+-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
+-			instance->num_connections);
+-		return -EINTR;
+-	}
++	mutex_lock(&instance->vchi_mutex);
+ 
+ 	/* Close all VCHI service connections */
+ 	for (i = 0; i < instance->num_connections; i++) {
+@@ -434,11 +430,7 @@ int bcm2835_audio_open(struct bcm2835_al
+ 	instance = alsa_stream->instance;
+ 	LOG_DBG(" instance (%p)\n", instance);
+ 
+-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
+-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", instance->num_connections);
+-		ret = -EINTR;
+-		goto free_wq;
+-	}
++	mutex_lock(&instance->vchi_mutex);
+ 	vchi_service_use(instance->vchi_handle[0]);
+ 
+ 	m.type = VC_AUDIO_MSG_TYPE_OPEN;
+@@ -479,11 +471,7 @@ static int bcm2835_audio_set_ctls_chan(s
+ 	LOG_INFO(" Setting ALSA dest(%d), volume(%d)\n",
+ 		 chip->dest, chip->volume);
+ 
+-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
+-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
+-			instance->num_connections);
+-		return -EINTR;
+-	}
++	mutex_lock(&instance->vchi_mutex);
+ 	vchi_service_use(instance->vchi_handle[0]);
+ 
+ 	instance->result = -1;
+@@ -569,10 +557,7 @@ int bcm2835_audio_set_params(struct bcm2
+ 		return -EINVAL;
+ 	}
+ 
+-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
+-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n", instance->num_connections);
+-		return -EINTR;
+-	}
++	mutex_lock(&instance->vchi_mutex);
+ 	vchi_service_use(instance->vchi_handle[0]);
+ 
+ 	instance->result = -1;
+@@ -629,11 +614,7 @@ static int bcm2835_audio_start_worker(st
+ 	int status;
+ 	int ret;
+ 
+-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
+-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
+-			instance->num_connections);
+-		return -EINTR;
+-	}
++	mutex_lock(&instance->vchi_mutex);
+ 	vchi_service_use(instance->vchi_handle[0]);
+ 
+ 	m.type = VC_AUDIO_MSG_TYPE_START;
+@@ -665,11 +646,7 @@ static int bcm2835_audio_stop_worker(str
+ 	int status;
+ 	int ret;
+ 
+-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
+-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
+-			instance->num_connections);
+-		return -EINTR;
+-	}
++	mutex_lock(&instance->vchi_mutex);
+ 	vchi_service_use(instance->vchi_handle[0]);
+ 
+ 	m.type = VC_AUDIO_MSG_TYPE_STOP;
+@@ -704,11 +681,7 @@ int bcm2835_audio_close(struct bcm2835_a
+ 
+ 	my_workqueue_quit(alsa_stream);
+ 
+-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
+-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
+-			instance->num_connections);
+-		return -EINTR;
+-	}
++	mutex_lock(&instance->vchi_mutex);
+ 	vchi_service_use(instance->vchi_handle[0]);
+ 
+ 	m.type = VC_AUDIO_MSG_TYPE_CLOSE;
+@@ -761,11 +734,7 @@ static int bcm2835_audio_write_worker(st
+ 
+ 	LOG_INFO(" Writing %d bytes from %p\n", count, src);
+ 
+-	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
+-		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
+-			instance->num_connections);
+-		return -EINTR;
+-	}
++	mutex_lock(&instance->vchi_mutex);
+ 	vchi_service_use(instance->vchi_handle[0]);
+ 
+ 	if (instance->peer_version == 0 &&
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+@@ -149,6 +149,7 @@ static int snd_bcm2835_create(struct snd
+ 		return -ENOMEM;
+ 
+ 	chip->card = card;
++	mutex_init(&chip->audio_mutex);
+ 
+ 	chip->vchi_ctx = devres_find(card->dev->parent,
+ 				     bcm2835_devm_free_vchi_ctx, NULL, NULL);