From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Ujfalusi Subject: [PATCH 1/3] ASoC: omap-mcbsp: Fix latency value calculation for pm_qos Date: Wed, 14 Nov 2018 13:06:21 +0200 Message-ID: <20181114110623.30932-2-peter.ujfalusi@ti.com> References: <20181114110623.30932-1-peter.ujfalusi@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20181114110623.30932-1-peter.ujfalusi@ti.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Mark Brown , Liam Girdwood , 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 List-Id: linux-omap@vger.kernel.org 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 --- 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