linux-kernel - [PATCH 2/2] ASoC: dwc: Enable 24 bit sample size in PIO mode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <4208c77798e92cfeb7305add296b6eb414c96f27.1482846853.git.joabreu@synopsys.com>
Date:   Tue, 27 Dec 2016 14:00:54 +0000
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     alsa-devel@...a-project.org
Cc:     Jose Abreu <Jose.Abreu@...opsys.com>,
        Carlos Palminha <CARLOS.PALMINHA@...opsys.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] ASoC: dwc: Enable 24 bit sample size in PIO mode

Sample size of 24 bits use in reality 32 bits for storage. We
can safelly enable this sample size and treat the data as
32 bits.

Tested in a x86_64 platform and in ARC AXS101 SDP platform.

Signed-off-by: Jose Abreu <joabreu@...opsys.com>
Cc: Carlos Palminha <palminha@...opsys.com>
Cc: Liam Girdwood <lgirdwood@...il.com>
Cc: Mark Brown <broonie@...nel.org>
Cc: Jaroslav Kysela <perex@...ex.cz>
Cc: Takashi Iwai <tiwai@...e.com>
Cc: alsa-devel@...a-project.org
Cc: linux-kernel@...r.kernel.org
---
 sound/soc/dwc/designware_pcm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/dwc/designware_pcm.c b/sound/soc/dwc/designware_pcm.c
index b063c86..459ec86 100644
--- a/sound/soc/dwc/designware_pcm.c
+++ b/sound/soc/dwc/designware_pcm.c
@@ -80,6 +80,7 @@
 	.rate_min = 32000,
 	.rate_max = 48000,
 	.formats = SNDRV_PCM_FMTBIT_S16_LE |
+		SNDRV_PCM_FMTBIT_S24_LE |
 		SNDRV_PCM_FMTBIT_S32_LE,
 	.channels_min = 2,
 	.channels_max = 2,
@@ -175,6 +176,7 @@ static int dw_pcm_hw_params(struct snd_pcm_substream *substream,
 		dev->tx_fn = dw_pcm_tx_16;
 		dev->rx_fn = dw_pcm_rx_16;
 		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
 	case SNDRV_PCM_FORMAT_S32_LE:
 		dev->tx_fn = dw_pcm_tx_32;
 		dev->rx_fn = dw_pcm_rx_32;
-- 
1.9.1