From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: Mark Brown <broonie@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
jarkko.nikula@bitmer.com, tony@atomide.com
Cc: kernel@pyra-handheld.com, hns@goldelico.com,
alsa-devel@alsa-project.org, linux-omap@vger.kernel.org,
matt@ranostay.consulting
Subject: [PATCH 1/3] ASoC: omap-mcbsp: Fix latency value calculation for pm_qos
Date: Wed, 14 Nov 2018 13:06:21 +0200 [thread overview]
Message-ID: <20181114110623.30932-2-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <20181114110623.30932-1-peter.ujfalusi@ti.com>
The latency number is in usec for the pm_qos. Correct the calculation to
give us the time in usec
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
sound/soc/omap/omap-mcbsp.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index e0ef4774c710..a395598f1f20 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -999,9 +999,9 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
pkt_size = channels;
}
- latency = ((((buffer_size - pkt_size) / channels) * 1000)
- / (params->rate_num / params->rate_den));
-
+ latency = (buffer_size - pkt_size) / channels;
+ latency = latency * USEC_PER_SEC /
+ (params->rate_num / params->rate_den);
mcbsp->latency[substream->stream] = latency;
omap_mcbsp_set_threshold(substream, pkt_size);
--
Peter
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
next prev parent reply other threads:[~2018-11-14 11:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-14 11:06 [PATCH 0/3] ASoC: omap: Fix and add pm_qos configuration Peter Ujfalusi
2018-11-14 11:06 ` Peter Ujfalusi [this message]
2018-11-18 17:04 ` [PATCH 1/3] ASoC: omap-mcbsp: Fix latency value calculation for pm_qos Jarkko Nikula
2018-11-19 14:14 ` Peter Ujfalusi
2018-11-23 14:11 ` Applied "ASoC: omap-mcbsp: Fix latency value calculation for pm_qos" to the asoc tree Mark Brown
2018-11-14 11:06 ` [PATCH 2/3] ASoC: omap-mcpdm: Add pm_qos handling to avoid under/overruns with CPU_IDLE Peter Ujfalusi
2018-11-23 14:11 ` Applied "ASoC: omap-mcpdm: Add pm_qos handling to avoid under/overruns with CPU_IDLE" to the asoc tree Mark Brown
2018-11-14 11:06 ` [PATCH 3/3] ASoC: omap-dmic: Add pm_qos handling to avoid overruns with CPU_IDLE Peter Ujfalusi
2018-11-23 14:10 ` Applied "ASoC: omap-dmic: Add pm_qos handling to avoid overruns with CPU_IDLE" to the asoc tree Mark Brown
2018-11-14 12:45 ` [PATCH 0/3] ASoC: omap: Fix and add pm_qos configuration H. Nikolaus Schaller
2018-11-15 12:26 ` H. Nikolaus Schaller
2018-11-15 14:29 ` Peter Ujfalusi
2018-11-16 8:00 ` Peter Ujfalusi
2018-11-18 17:04 ` Jarkko Nikula
2018-11-19 14:17 ` Peter Ujfalusi
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