According to some tests on the Cubox (Marvell Armada 510 + TDA19988), the S/PDIF input asks for a greater audio clock divider.
Signed-off-by: Jean-Francois Moine moinejf@free.fr --- drivers/gpu/drm/i2c/tda998x_drv.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index b4827c0..e4dfcb4 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -679,10 +679,14 @@ tda998x_configure_audio(struct tda998x_priv *priv, * There is no detailed info in the datasheet, so we just * assume 100MHz requires larger divider. */ + adiv = AUDIO_DIV_SERCLK_8; if (mode->clock > 100000) - adiv = AUDIO_DIV_SERCLK_16; - else - adiv = AUDIO_DIV_SERCLK_8; + adiv++; /* AUDIO_DIV_SERCLK_8 */ + + /* S/PDIF asks for a larger divider */ + if (p->audio_format == AFMT_SPDIF) + adiv++; /* AUDIO_DIV_SERCLK_16 or _32 */ + reg_write(priv, REG_AUDIO_DIV, adiv);
/*