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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/pcm.h
parent0fef8b1e83c4ab08cf1304dbebcfd749caf4f187 (diff)
downloadlinux-ed77134bfccf5e75b6cbadab268e559dbe6a4ebb.tar.bz2
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/pcm.h')
-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;