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Message-Id: <20200418224435.23672-7-peron.clem@gmail.com>
Date: Sun, 19 Apr 2020 00:44:34 +0200
From: Clément Péron <peron.clem@...il.com>
To: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Maxime Ripard <mripard@...nel.org>,
Chen-Yu Tsai <wens@...e.org>, Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>
Cc: alsa-devel@...a-project.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Marcus Cooper <codekipper@...il.com>,
Clément Péron <peron.clem@...il.com>
Subject: [PATCH v2 6/7] ASoC: sun4i-i2s: Adjust regmap settings
From: Marcus Cooper <codekipper@...il.com>
Bypass the regmap cache when flushing the i2s FIFOs and modify the tables
to reflect this.
Signed-off-by: Marcus Cooper <codekipper@...il.com>
Signed-off-by: Clément Péron <peron.clem@...il.com>
---
sound/soc/sunxi/sun4i-i2s.c | 31 ++++++++-----------------------
1 file changed, 8 insertions(+), 23 deletions(-)
diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 9778af37fbca..9053d290dd87 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -921,7 +921,7 @@ static int sun4i_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
static void sun4i_i2s_start_capture(struct sun4i_i2s *i2s)
{
/* Flush RX FIFO */
- regmap_update_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG,
+ regmap_write_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG,
SUN4I_I2S_FIFO_CTRL_FLUSH_RX,
SUN4I_I2S_FIFO_CTRL_FLUSH_RX);
@@ -942,7 +942,7 @@ static void sun4i_i2s_start_capture(struct sun4i_i2s *i2s)
static void sun4i_i2s_start_playback(struct sun4i_i2s *i2s)
{
/* Flush TX FIFO */
- regmap_update_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG,
+ regmap_write_bits(i2s->regmap, SUN4I_I2S_FIFO_CTRL_REG,
SUN4I_I2S_FIFO_CTRL_FLUSH_TX,
SUN4I_I2S_FIFO_CTRL_FLUSH_TX);
@@ -1096,13 +1096,7 @@ static const struct snd_soc_component_driver sun4i_i2s_component = {
static bool sun4i_i2s_rd_reg(struct device *dev, unsigned int reg)
{
- switch (reg) {
- case SUN4I_I2S_FIFO_TX_REG:
- return false;
-
- default:
- return true;
- }
+ return true;
}
static bool sun4i_i2s_wr_reg(struct device *dev, unsigned int reg)
@@ -1121,6 +1115,8 @@ static bool sun4i_i2s_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case SUN4I_I2S_FIFO_RX_REG:
+ case SUN4I_I2S_FIFO_TX_REG:
+ case SUN4I_I2S_FIFO_STA_REG:
case SUN4I_I2S_INT_STA_REG:
case SUN4I_I2S_RX_CNT_REG:
case SUN4I_I2S_TX_CNT_REG:
@@ -1131,23 +1127,12 @@ static bool sun4i_i2s_volatile_reg(struct device *dev, unsigned int reg)
}
}
-static bool sun8i_i2s_rd_reg(struct device *dev, unsigned int reg)
-{
- switch (reg) {
- case SUN8I_I2S_FIFO_TX_REG:
- return false;
-
- default:
- return true;
- }
-}
-
static bool sun8i_i2s_volatile_reg(struct device *dev, unsigned int reg)
{
if (reg == SUN8I_I2S_INT_STA_REG)
return true;
if (reg == SUN8I_I2S_FIFO_TX_REG)
- return false;
+ return true;
return sun4i_i2s_volatile_reg(dev, reg);
}
@@ -1218,7 +1203,7 @@ static const struct regmap_config sun8i_i2s_regmap_config = {
.reg_defaults = sun8i_i2s_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(sun8i_i2s_reg_defaults),
.writeable_reg = sun4i_i2s_wr_reg,
- .readable_reg = sun8i_i2s_rd_reg,
+ .readable_reg = sun4i_i2s_rd_reg,
.volatile_reg = sun8i_i2s_volatile_reg,
};
@@ -1231,7 +1216,7 @@ static const struct regmap_config sun50i_i2s_regmap_config = {
.reg_defaults = sun50i_i2s_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(sun50i_i2s_reg_defaults),
.writeable_reg = sun4i_i2s_wr_reg,
- .readable_reg = sun8i_i2s_rd_reg,
+ .readable_reg = sun4i_i2s_rd_reg,
.volatile_reg = sun8i_i2s_volatile_reg,
};
--
2.20.1
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