From: Jyri Sarha <jsarha@ti.com>
To: dri-devel@lists.freedesktop.org, airlied@linux.ie,
linux-omap@vger.kernel.org, devicetree@vger.kernel.org,
bcousson@baylibre.com, alsa-devel@alsa-project.org
Cc: peter.ujfalusi@ti.com, tony@atomide.com, broonie@kernel.org,
arnaud.pouliquen@st.com, Jyri Sarha <jsarha@ti.com>,
liam.r.girdwood@linux.intel.com, tomi.valkeinen@ti.com,
rmk+kernel@arm.linux.org.uk
Subject: [PATCH v9 2/7] ALSA: pcm: Allow 32 bit sample format in IEC958 channel status helper
Date: Thu, 31 Mar 2016 16:35:59 +0300 [thread overview]
Message-ID: <44ee7ac5c0ddb4d25ac1bd4f189d328f8205e4a0.1459431292.git.jsarha@ti.com> (raw)
In-Reply-To: <cover.1459431292.git.jsarha@ti.com>
Treat 32 bit sample width as if it was 24 bits when generating IEC958
channel status bits. On some platforms 24 sample width is problematic
and to get full 24 bit precision a 32 bit format, using only the 24
most significant bits, may have to be used.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
---
sound/core/pcm_iec958.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/core/pcm_iec958.c b/sound/core/pcm_iec958.c
index e016871..5e6aed6 100644
--- a/sound/core/pcm_iec958.c
+++ b/sound/core/pcm_iec958.c
@@ -59,6 +59,7 @@ static int create_iec958_consumer(uint rate, uint sample_width,
IEC958_AES4_CON_MAX_WORDLEN_24;
break;
case 24:
+ case 32: /* Assume 24-bit width for 32-bit samples. */
ws = IEC958_AES4_CON_WORDLEN_24_20 |
IEC958_AES4_CON_MAX_WORDLEN_24;
break;
--
1.9.1
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next prev parent reply other threads:[~2016-03-31 13:35 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-31 13:35 [PATCH v9 0/7] Implement generic ASoC HDMI codec and use it in tda998x Jyri Sarha
2016-03-31 13:35 ` [PATCH v9 1/7] ALSA: pcm: add IEC958 channel status helper for hw_params Jyri Sarha
2016-03-31 13:42 ` Takashi Iwai
2016-04-06 21:42 ` Applied "ALSA: pcm: add IEC958 channel status helper for hw_params" to the asoc tree Mark Brown
2016-03-31 13:35 ` Jyri Sarha [this message]
[not found] ` <44ee7ac5c0ddb4d25ac1bd4f189d328f8205e4a0.1459431292.git.jsarha-l0cyMroinI0@public.gmane.org>
2016-03-31 13:43 ` [PATCH v9 2/7] ALSA: pcm: Allow 32 bit sample format in IEC958 channel status helper Takashi Iwai
2016-04-06 21:42 ` Applied "ALSA: pcm: Allow 32 bit sample format in IEC958 channel status helper" to the asoc tree Mark Brown
2016-03-31 13:36 ` [PATCH v9 3/7] ASoC: hdmi-codec: Add hdmi-codec for external HDMI-encoders Jyri Sarha
2016-04-13 8:06 ` Arnaud Pouliquen
[not found] ` <636486b25db48fa13ae640516cdebe7bcfea0d23.1459431292.git.jsarha-l0cyMroinI0@public.gmane.org>
2016-04-14 5:31 ` [alsa-devel] " PC Liao
2016-04-19 10:42 ` Jyri Sarha
[not found] ` <57160B9F.9090907-l0cyMroinI0@public.gmane.org>
2016-04-19 10:54 ` Mark Brown
2016-03-31 13:36 ` [PATCH v9 4/7] ASoC: hdmi-codec: Add audio abort() callback for video side to use Jyri Sarha
2016-04-13 8:31 ` Arnaud Pouliquen
2016-04-14 6:21 ` Jyri Sarha
2016-03-31 13:36 ` [PATCH v9 5/7] drm/i2c: tda998x: Improve tda998x_configure_audio() audio related pdata Jyri Sarha
2016-03-31 13:36 ` [PATCH v9 6/7] drm/i2c: tda998x: Register ASoC hdmi-codec and add audio DT binding Jyri Sarha
2016-04-01 18:37 ` Rob Herring
2016-03-31 13:36 ` [PATCH v9 7/7] ARM: dts: am335x-boneblack: Add HDMI audio support Jyri Sarha
2016-04-13 7:02 ` [PATCH v9 0/7] Implement generic ASoC HDMI codec and use it in tda998x Mark Brown
2016-04-13 7:53 ` Jyri Sarha
2016-04-13 17:26 ` Mark Brown
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