[PATCH v2 1/9] ASoC: sun4i-i2s: Add compatibility with A64 codec I2S

Vasily Khoruzhick
2018-10-13T16:53:21Z

From: Marcus Cooper <codekipper@gmail.com>

The I2S block used for the audio codec in the A64 differs from other 3
I2S modules in A64 and isn't compatible with H3. But it is very similar
to what is found in A10(sun4i). However, its TX FIFO is
located at a different address.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
---
.../devicetree/bindings/sound/sun4i-i2s.txt | 2 ++
sound/soc/sunxi/sun4i-i2s.c | 21 +++++++++++++++++++
2 files changed, 23 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt
index b9d50d6cdef3..61e71c1729e0 100644
--- a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt
+++ b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt
@@ -10,6 +10,7 @@ Required properties:
- "allwinner,sun6i-a31-i2s"
- "allwinner,sun8i-a83t-i2s"
- "allwinner,sun8i-h3-i2s"
+ - "allwinner,sun50i-a64-codec-i2s"
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: should contain the I2S interrupt.
@@ -26,6 +27,7 @@ Required properties for the following compatibles:
- "allwinner,sun6i-a31-i2s"
- "allwinner,sun8i-a83t-i2s"
- "allwinner,sun8i-h3-i2s"
+ - "allwinner,sun50i-a64-codec-i2s"
- resets: phandle to the reset line for this codec

Example:
diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index ed30d30ac720..83374617962c 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -967,6 +967,23 @@ static const struct sun4i_i2s_quirks sun8i_h3_i2s_quirks = {
.field_rxchansel = REG_FIELD(SUN8I_I2S_RX_CHAN_SEL_REG, 0, 2),
};

+static const struct sun4i_i2s_quirks sun50i_a64_codec_i2s_quirks = {
+ .has_reset = true,
+ .reg_offset_txdata = SUN8I_I2S_FIFO_TX_REG,
+ .sun4i_i2s_regmap = &sun4i_i2s_regmap_config,
+ .has_slave_select_bit = true,
+ .field_clkdiv_mclk_en = REG_FIELD(SUN4I_I2S_CLK_DIV_REG, 7, 7),
+ .field_fmt_wss = REG_FIELD(SUN4I_I2S_FMT0_REG, 2, 3),
+ .field_fmt_sr = REG_FIELD(SUN4I_I2S_FMT0_REG, 4, 5),
+ .field_fmt_bclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 6, 6),
+ .field_fmt_lrclk = REG_FIELD(SUN4I_I2S_FMT0_REG, 7, 7),
+ .field_fmt_mode = REG_FIELD(SUN4I_I2S_FMT0_REG, 0, 1),
+ .field_txchanmap = REG_FIELD(SUN4I_I2S_TX_CHAN_MAP_REG, 0, 31),
+ .field_rxchanmap = REG_FIELD(SUN4I_I2S_RX_CHAN_MAP_REG, 0, 31),
+ .field_txchansel = REG_FIELD(SUN4I_I2S_TX_CHAN_SEL_REG, 0, 2),
+ .field_rxchansel = REG_FIELD(SUN4I_I2S_RX_CHAN_SEL_REG, 0, 2),
+};
+
static int sun4i_i2s_init_regmap_fields(struct device *dev,
struct sun4i_i2s *i2s)
{
@@ -1175,6 +1192,10 @@ static const struct of_device_id sun4i_i2s_match[] = {
.compatible = "allwinner,sun8i-h3-i2s",
.data = &sun8i_h3_i2s_quirks,
},
+ {
+ .compatible = "allwinner,sun50i-a64-codec-i2s",
+ .data = &sun50i_a64_codec_i2s_quirks,
+ },
{}
};
MODULE_DEVICE_TABLE(of, sun4i_i2s_match);
--
2.19.0