[PATCH v2 27/28] drm/i2c: tda998x: adjust the audio clock divider for S/PDIF
From: Jean-Francois Moine <hidden>
Date: 2014-01-09 11:13:38
Also in:
dri-devel, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
The S/PDIF input asks for a greater audio clock divider. Signed-off-by: Jean-Francois Moine <redacted> --- drivers/gpu/drm/i2c/tda998x_drv.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index d3b3f3a..67d7450 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c@@ -757,6 +757,10 @@ tda998x_configure_audio(struct tda998x_priv *priv, AIP_CNTRL_0_ACR_MAN); reg_write(priv, REG_CTS_N, cts_n); + /* S/PDIF asks for a large divider */ + if (priv->audio_type == (AFMT_SPDIF | AUDIO_ACTIVE)) + adiv = AUDIO_DIV_SERCLK_32; + /* * Audio input somehow depends on HDMI line rate which is * related to pixclk. Testing showed that modes with pixclk
@@ -764,7 +768,7 @@ tda998x_configure_audio(struct tda998x_priv *priv, * There is no detailed info in the datasheet, so we just * assume 100MHz requires larger divider. */ - if (mode->clock > 100000) + else if (mode->clock > 100000) adiv = AUDIO_DIV_SERCLK_16; else adiv = AUDIO_DIV_SERCLK_8;
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