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authorMisael Lopez Cruz <misael.lopez@ti.com>2015-04-22 16:23:00 +0300
committerTomi Valkeinen <tomi.valkeinen@ti.com>2015-06-03 14:34:02 +0300
commit88359b99d0841d0def5dffff911875dfc78a94fa (patch)
tree6c84a0be0af905407cf23f65185f47a9c176aaea /drivers/video/fbdev
parent65c8b46400752d54291e976d60ab13bfe5bb06b8 (diff)
downloadop-kernel-dev-88359b99d0841d0def5dffff911875dfc78a94fa.zip
op-kernel-dev-88359b99d0841d0def5dffff911875dfc78a94fa.tar.gz
ASoC: omap-hdmi-audio: Force channel allocation only for OMAP4
There is a constraint in the OMAP4 HDMI IP that requires to use the 8-channel code when transmitting more than two channels. The constraint doesn't apply for OMAP5 so don't force the channel allocation in the sound driver as it can be done specifically for OMAP4 later in the hdmi4 core. Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com> Signed-off-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/video/fbdev')
-rw-r--r--drivers/video/fbdev/omap2/dss/hdmi4_core.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/video/fbdev/omap2/dss/hdmi4_core.c b/drivers/video/fbdev/omap2/dss/hdmi4_core.c
index 2b8bd22..fa72e73 100644
--- a/drivers/video/fbdev/omap2/dss/hdmi4_core.c
+++ b/drivers/video/fbdev/omap2/dss/hdmi4_core.c
@@ -654,6 +654,13 @@ static void hdmi_core_audio_infoframe_cfg(struct hdmi_core_data *core,
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(2), info_aud->db3);
sum += info_aud->db3;
+ /*
+ * The OMAP HDMI IP requires to use the 8-channel channel code when
+ * transmitting more than two channels.
+ */
+ if (info_aud->db4_ca != 0x00)
+ info_aud->db4_ca = 0x13;
+
hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(3), info_aud->db4_ca);
sum += info_aud->db4_ca;
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