Merge tag 'asoc-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v6.15

This is a very big release due to a combination of some big new work,
mainly new drivers and generic SoundWire support, and some wide ranging
cleanup work that made small changes to a lot of drivers.

 - Morimoto-san has completed the conversion to use modern terminology
   for the clocking configuration, and several other cleanups with
   narrower impact.
 - All the power management operation configuration was updated to use
   current idioms by Takashi Iwai.
 - Clarification of the control operations from Charles Keepax.
 - Prepartory work for more generic SoundWire SCDA controls from Charles
   Keepax.
 - Support for AMD ACP 7.x, AWINC WM88166, Everest ES8388, Intel AVS
   PEAKVOL and GAIN DSP modules Mediatek MT8188 DMIC, NXP i.MX95, nVidia
   Tegra interconnects, Rockchip RK3588 S/PDIF, Texas Instruments
   SN012776 and TAS5770L, and Wolfson WM8904 DMICs,

Some changes from the tip tree adding APIs needed by the AMD code are
included, these were unfortunately rebased in the tip tree after being
pulled in.  There's also some regmap changes supporting the SCDA work
and some devres refactoring that was pulled in to support other changes.

1 files changed, 14 insertions, 18 deletions

diff --git a/fs/pipe.c b/fs/pipe.c
index ce1af7592780..4d0799e4e719 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -210,11 +210,10 @@ static const struct pipe_buf_operations anon_pipe_buf_ops = {
 /* Done while waiting without holding the pipe lock - thus the READ_ONCE() */
 static inline bool pipe_readable(const struct pipe_inode_info *pipe)
 {
-	unsigned int head = READ_ONCE(pipe->head);
-	unsigned int tail = READ_ONCE(pipe->tail);
+	union pipe_index idx = { .head_tail = READ_ONCE(pipe->head_tail) };
 	unsigned int writers = READ_ONCE(pipe->writers);
 
-	return !pipe_empty(head, tail) || !writers;
+	return !pipe_empty(idx.head, idx.tail) || !writers;
 }
 
 static inline unsigned int pipe_update_tail(struct pipe_inode_info *pipe,
@@ -395,7 +394,7 @@ pipe_read(struct kiocb *iocb, struct iov_iter *to)
 		wake_next_reader = true;
 		mutex_lock(&pipe->mutex);
 	}
-	if (pipe_empty(pipe->head, pipe->tail))
+	if (pipe_is_empty(pipe))
 		wake_next_reader = false;
 	mutex_unlock(&pipe->mutex);
 
@@ -417,11 +416,10 @@ static inline int is_packetized(struct file *file)
 /* Done while waiting without holding the pipe lock - thus the READ_ONCE() */
 static inline bool pipe_writable(const struct pipe_inode_info *pipe)
 {
-	unsigned int head = READ_ONCE(pipe->head);
-	unsigned int tail = READ_ONCE(pipe->tail);
+	union pipe_index idx = { .head_tail = READ_ONCE(pipe->head_tail) };
 	unsigned int max_usage = READ_ONCE(pipe->max_usage);
 
-	return !pipe_full(head, tail, max_usage) ||
+	return !pipe_full(idx.head, idx.tail, max_usage) ||
 		!READ_ONCE(pipe->readers);
 }
 
@@ -579,11 +577,11 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from)
 		kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
 		wait_event_interruptible_exclusive(pipe->wr_wait, pipe_writable(pipe));
 		mutex_lock(&pipe->mutex);
-		was_empty = pipe_empty(pipe->head, pipe->tail);
+		was_empty = pipe_is_empty(pipe);
 		wake_next_writer = true;
 	}
 out:
-	if (pipe_full(pipe->head, pipe->tail, pipe->max_usage))
+	if (pipe_is_full(pipe))
 		wake_next_writer = false;
 	mutex_unlock(&pipe->mutex);
 
@@ -616,7 +614,7 @@ out:
 static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	struct pipe_inode_info *pipe = filp->private_data;
-	unsigned int count, head, tail, mask;
+	unsigned int count, head, tail;
 
 	switch (cmd) {
 	case FIONREAD:
@@ -624,10 +622,9 @@ static long pipe_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		count = 0;
 		head = pipe->head;
 		tail = pipe->tail;
-		mask = pipe->ring_size - 1;
 
-		while (tail != head) {
-			count += pipe->bufs[tail & mask].len;
+		while (!pipe_empty(head, tail)) {
+			count += pipe_buf(pipe, tail)->len;
 			tail++;
 		}
 		mutex_unlock(&pipe->mutex);
@@ -659,7 +656,7 @@ pipe_poll(struct file *filp, poll_table *wait)
 {
 	__poll_t mask;
 	struct pipe_inode_info *pipe = filp->private_data;
-	unsigned int head, tail;
+	union pipe_index idx;
 
 	/* Epoll has some historical nasty semantics, this enables them */
 	WRITE_ONCE(pipe->poll_usage, true);
@@ -680,19 +677,18 @@ pipe_poll(struct file *filp, poll_table *wait)
 	 * if something changes and you got it wrong, the poll
 	 * table entry will wake you up and fix it.
 	 */
-	head = READ_ONCE(pipe->head);
-	tail = READ_ONCE(pipe->tail);
+	idx.head_tail = READ_ONCE(pipe->head_tail);
 
 	mask = 0;
 	if (filp->f_mode & FMODE_READ) {
-		if (!pipe_empty(head, tail))
+		if (!pipe_empty(idx.head, idx.tail))
 			mask |= EPOLLIN | EPOLLRDNORM;
 		if (!pipe->writers && filp->f_pipe != pipe->w_counter)
 			mask |= EPOLLHUP;
 	}
 
 	if (filp->f_mode & FMODE_WRITE) {
-		if (!pipe_full(head, tail, pipe->max_usage))
+		if (!pipe_full(idx.head, idx.tail, pipe->max_usage))
 			mask |= EPOLLOUT | EPOLLWRNORM;
 		/*
 		 * Most Unices do not set EPOLLERR for FIFOs but on Linux they