On 2019-09-18 10:02, Jon Hunter wrote:
On 18/09/2019 09:54, Jon Hunter wrote:
On 17/09/2019 19:12, Ben Dooks wrote:
In TDM, use the negative edge to drive data and the positive edge to
sample
data.
Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
---
sound/soc/tegra/tegra30_i2s.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sound/soc/tegra/tegra30_i2s.c
b/sound/soc/tegra/tegra30_i2s.c
index 4222839b63bd..d75ce12fe177 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -117,6 +117,8 @@ static int tegra30_i2s_set_fmt(struct snd_soc_dai
*dai,
}
pm_runtime_get_sync(dai->dev);
+ regmap_update_bits(i2s->regmap, TEGRA30_I2S_CH_CTRL_EGDE_CTRL_MASK,
+ i2s->is_tdm ? TEGRA30_I2S_CH_CTRL_EGDE_CTRL_NEG_EDGE : 0);
regmap_update_bits(i2s->regmap, TEGRA30_I2S_CTRL, mask, val);
pm_runtime_put(dai->dev);
I would rather set this in the case statement above where the format
is
parsed and again drop this 'is_tdm' variable.
Actually, this should be implemented as shown in the following ...
https://nv-tegra.nvidia.com/gitweb/?p=linux-nvidia.git;a=blob;f=sound/soc/tegra-alt/tegra210_i2s_alt.c;h=ee482f27ed2e4710e5e7446918887f8f8ef31285;hb=a960d522a5486aee27605f890034869c4f49d94a#l362
Jon
Ok, will look at that.
Note, nv-tegra.nvidia.com seems to have a security problem .
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