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From: Russell King <rmk+kernel@arm.linux.org.uk>
To: Mark Brown <broonie@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>,
	alsa-devel@alsa-project.org, Liam Girdwood <lgirdwood@gmail.com>,
	linux-arm-kernel@lists.infradead.org,
	Jaroslav Kysela <perex@perex.cz>
Subject: [PATCH 6/7] ASoC: kirkwood: allow smaller audio periods and smaller number of periods
Date: Thu, 26 Jun 2014 15:23:15 +0100	[thread overview]
Message-ID: <E1X0Aa3-0003iU-Hc@rmk-PC.arm.linux.org.uk> (raw)
In-Reply-To: <20140626142231.GR32514@n2100.arm.linux.org.uk>

There is no hardware restriction requiring a minimum of 8 periods, or
a minimum of 2048 bytes in a period.  Let's drop these values so that
userspace has more flexibility in choosing these parameters.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 sound/soc/kirkwood/kirkwood.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/kirkwood/kirkwood.h b/sound/soc/kirkwood/kirkwood.h
index ab21de090938..90e32a781424 100644
--- a/sound/soc/kirkwood/kirkwood.h
+++ b/sound/soc/kirkwood/kirkwood.h
@@ -124,9 +124,9 @@
 
 /* Theses values come from the marvell alsa driver */
 /* need to find where they come from               */
-#define KIRKWOOD_SND_MIN_PERIODS		8
+#define KIRKWOOD_SND_MIN_PERIODS		2
 #define KIRKWOOD_SND_MAX_PERIODS		16
-#define KIRKWOOD_SND_MIN_PERIOD_BYTES		0x800
+#define KIRKWOOD_SND_MIN_PERIOD_BYTES		256
 #define KIRKWOOD_SND_MAX_PERIOD_BYTES		0x8000
 #define KIRKWOOD_SND_MAX_BUFFER_BYTES		(KIRKWOOD_SND_MAX_PERIOD_BYTES \
 						 * KIRKWOOD_SND_MAX_PERIODS)
-- 
1.8.3.1

WARNING: multiple messages have this Message-ID (diff)
From: rmk+kernel@arm.linux.org.uk (Russell King)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/7] ASoC: kirkwood: allow smaller audio periods and smaller number of periods
Date: Thu, 26 Jun 2014 15:23:15 +0100	[thread overview]
Message-ID: <E1X0Aa3-0003iU-Hc@rmk-PC.arm.linux.org.uk> (raw)
In-Reply-To: <20140626142231.GR32514@n2100.arm.linux.org.uk>

There is no hardware restriction requiring a minimum of 8 periods, or
a minimum of 2048 bytes in a period.  Let's drop these values so that
userspace has more flexibility in choosing these parameters.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 sound/soc/kirkwood/kirkwood.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/kirkwood/kirkwood.h b/sound/soc/kirkwood/kirkwood.h
index ab21de090938..90e32a781424 100644
--- a/sound/soc/kirkwood/kirkwood.h
+++ b/sound/soc/kirkwood/kirkwood.h
@@ -124,9 +124,9 @@
 
 /* Theses values come from the marvell alsa driver */
 /* need to find where they come from               */
-#define KIRKWOOD_SND_MIN_PERIODS		8
+#define KIRKWOOD_SND_MIN_PERIODS		2
 #define KIRKWOOD_SND_MAX_PERIODS		16
-#define KIRKWOOD_SND_MIN_PERIOD_BYTES		0x800
+#define KIRKWOOD_SND_MIN_PERIOD_BYTES		256
 #define KIRKWOOD_SND_MAX_PERIOD_BYTES		0x8000
 #define KIRKWOOD_SND_MAX_BUFFER_BYTES		(KIRKWOOD_SND_MAX_PERIOD_BYTES \
 						 * KIRKWOOD_SND_MAX_PERIODS)
-- 
1.8.3.1

  parent reply	other threads:[~2014-06-26 14:23 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-26 14:22 [PATCH 0/7] Kirkwood ASoC updates Russell King - ARM Linux
2014-06-26 14:22 ` Russell King - ARM Linux
2014-06-26 14:22 ` [PATCH 1/7] ASoC: fix debugfs directory creation bug Russell King
2014-06-26 14:22   ` Russell King
2014-06-27  2:45   ` Lars-Peter Clausen
2014-06-27  2:45     ` [alsa-devel] " Lars-Peter Clausen
2014-06-28 12:46     ` Mark Brown
2014-06-28 12:46       ` [alsa-devel] " Mark Brown
2014-06-26 14:22 ` [PATCH 2/7] ASoC: kirkwood-i2s: provide helper KIRKWOOD_RECCTL_ENABLE_MASK definition Russell King
2014-06-26 14:22   ` Russell King
2014-06-26 14:23 ` [PATCH 3/7] ASoC: kirkwood-i2s: fix RECCTL masking Russell King
2014-06-26 14:23   ` Russell King
2014-06-26 14:23 ` [PATCH 4/7] ASoC: kirkwood-i2s: fix mute handling Russell King
2014-06-26 14:23   ` Russell King
2014-06-26 14:23 ` [PATCH 5/7] ASoC: kirkwood-i2s: fix pause handling some more Russell King
2014-06-26 14:23   ` Russell King
2014-06-26 14:23 ` Russell King [this message]
2014-06-26 14:23   ` [PATCH 6/7] ASoC: kirkwood: allow smaller audio periods and smaller number of periods Russell King
2014-06-26 14:23 ` [PATCH 7/7] ASoC: kirkwood: implement NO_PERIOD_WAKEUP support Russell King
2014-06-26 14:23   ` Russell King
2014-06-26 18:10 ` [PATCH 0/7] Kirkwood ASoC updates Andrew Lunn
2014-06-26 18:10   ` Andrew Lunn
2014-06-26 18:22   ` Russell King - ARM Linux
2014-06-26 18:22     ` Russell King - ARM Linux
2014-06-28 12:47 ` Mark Brown
2014-06-28 12:47   ` Mark Brown

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