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ASoC: meson: axg-toddr: add g12a support 

Since the g12a SoC fifo can set the fifo initial start address, we must
make sure to actually reset the write pointer to this address when
starting a capture.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.2
Jerome Brunet 2019-04-04 13:17:30 +02:00 committed by Mark Brown
parent 7c02509a8a
commit a3c23a8ad4
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GPG Key ID: 24D68B725D5487D0
1 changed files with 53 additions and 0 deletions
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53
sound/soc/meson/axg-toddr.c
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@ -24,6 +24,7 @@
#define CTRL0_TODDR_MSB_POS(x) ((x) << 8)
#define CTRL0_TODDR_LSB_POS_MASK GENMASK(7, 3)
#define CTRL0_TODDR_LSB_POS(x) ((x) << 3)
#define CTRL1_TODDR_FORCE_FINISH BIT(25)
#define TODDR_MSB_POS 31
@ -33,6 +34,22 @@ static int axg_toddr_pcm_new(struct snd_soc_pcm_runtime *rtd,
return axg_fifo_pcm_new(rtd, SNDRV_PCM_STREAM_CAPTURE);
}
static int g12a_toddr_dai_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai);
/* Reset the write pointer to the FIFO_INIT_ADDR */
regmap_update_bits(fifo->map, FIFO_CTRL1,
CTRL1_TODDR_FORCE_FINISH, 0);
regmap_update_bits(fifo->map, FIFO_CTRL1,
CTRL1_TODDR_FORCE_FINISH, CTRL1_TODDR_FORCE_FINISH);
regmap_update_bits(fifo->map, FIFO_CTRL1,
CTRL1_TODDR_FORCE_FINISH, 0);
return 0;
}
static int axg_toddr_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@ -172,10 +189,46 @@ static const struct axg_fifo_match_data axg_toddr_match_data = {
.dai_drv = &axg_toddr_dai_drv
};
static const struct snd_soc_dai_ops g12a_toddr_ops = {
.prepare = g12a_toddr_dai_prepare,
.hw_params = axg_toddr_dai_hw_params,
.startup = axg_toddr_dai_startup,
.shutdown = axg_toddr_dai_shutdown,
};
static struct snd_soc_dai_driver g12a_toddr_dai_drv = {
.name = "TODDR",
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = AXG_FIFO_CH_MAX,
.rates = AXG_FIFO_RATES,
.formats = AXG_FIFO_FORMATS,
},
.ops = &g12a_toddr_ops,
.pcm_new = axg_toddr_pcm_new,
};
static const struct snd_soc_component_driver g12a_toddr_component_drv = {
.dapm_widgets = axg_toddr_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(axg_toddr_dapm_widgets),
.dapm_routes = axg_toddr_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(axg_toddr_dapm_routes),
.ops = &g12a_fifo_pcm_ops
};
static const struct axg_fifo_match_data g12a_toddr_match_data = {
.component_drv = &g12a_toddr_component_drv,
.dai_drv = &g12a_toddr_dai_drv
};
static const struct of_device_id axg_toddr_of_match[] = {
{
.compatible = "amlogic,axg-toddr",
.data = &axg_toddr_match_data,
}, {
.compatible = "amlogic,g12a-toddr",
.data = &g12a_toddr_match_data,
}, {}
};
MODULE_DEVICE_TABLE(of, axg_toddr_of_match);