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authorMark Gross <mgross@linux.intel.com>2010-05-06 01:59:26 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2010-05-10 23:08:19 +0200
commited77134bfccf5e75b6cbadab268e559dbe6a4ebb (patch)
treedae087a617ab3d9af8673d1905dbca3bcd57e89e /include/sound
parent0fef8b1e83c4ab08cf1304dbebcfd749caf4f187 (diff)
downloadlinux-ed77134bfccf5e75b6cbadab268e559dbe6a4ebb.tar.gz
PM QOS update
This patch changes the string based list management to a handle base
implementation to help with the hot path use of pm-qos, it also renames
much of the API to use "request" as opposed to "requirement" that was
used in the initial implementation.  I did this because request more
accurately represents what it actually does.

Also, I added a string based ABI for users wanting to use a string
interface.  So if the user writes 0xDDDDDDDD formatted hex it will be
accepted by the interface.  (someone asked me for it and I don't think
it hurts anything.)

This patch updates some documentation input I got from Randy.

Signed-off-by: markgross <mgross@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/pcm.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 8b611a561985..dd76cdede64d 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -29,6 +29,7 @@
 #include <linux/poll.h>
 #include <linux/mm.h>
 #include <linux/bitops.h>
+#include <linux/pm_qos_params.h>
 
 #define snd_pcm_substream_chip(substream) ((substream)->private_data)
 #define snd_pcm_chip(pcm) ((pcm)->private_data)
@@ -365,7 +366,7 @@ struct snd_pcm_substream {
 	int number;
 	char name[32];			/* substream name */
 	int stream;			/* stream (direction) */
-	char latency_id[20];		/* latency identifier */
+	struct pm_qos_request_list *latency_pm_qos_req; /* pm_qos request */
 	size_t buffer_bytes_max;	/* limit ring buffer size */
 	struct snd_dma_buffer dma_buffer;
 	unsigned int dma_buf_id;