[PATCH v9 07/14] ASoC: sun4i-i2s: Fix setting of FIFO modes
From: Clément Péron <hidden>
Date: 2020-10-27 18:32:54
Also in:
alsa-devel, linux-devicetree, lkml
Subsystem:
sound, sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers:
Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Linus Torvalds
From: Samuel Holland <samuel@sholland.org> Because SUN4I_I2S_FIFO_CTRL_REG is volatile, writes done while the regmap is cache-only are ignored. To work around this, move the configuration to a callback that runs while the ASoC core has a runtime PM reference to the device. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Chen-Yu Tsai <redacted> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Clément Péron <redacted> --- sound/soc/sunxi/sun4i-i2s.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 83537538f8ee..6a3207245ae2 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c@@ -596,6 +596,13 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream, return ret; } + /* Set significant bits in our FIFOs */ + regmap_update_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG, + SUN4I_I2S_FIFO_CTRL_TX_MODE_MASK | + SUN4I_I2S_FIFO_CTRL_RX_MODE_MASK, + SUN4I_I2S_FIFO_CTRL_TX_MODE(1) | + SUN4I_I2S_FIFO_CTRL_RX_MODE(1)); + switch (params_physical_width(params)) { case 16: width = DMA_SLAVE_BUSWIDTH_2_BYTES;
@@ -924,13 +931,6 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) return ret; } - /* Set significant bits in our FIFOs */ - regmap_update_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG, - SUN4I_I2S_FIFO_CTRL_TX_MODE_MASK | - SUN4I_I2S_FIFO_CTRL_RX_MODE_MASK, - SUN4I_I2S_FIFO_CTRL_TX_MODE(1) | - SUN4I_I2S_FIFO_CTRL_RX_MODE(1)); - i2s->format = fmt; return 0;
--
2.25.1
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