diff options
Diffstat (limited to 'sound/soc/meson/axg-frddr.c')
| -rw-r--r-- | sound/soc/meson/axg-frddr.c | 43 |
1 files changed, 33 insertions, 10 deletions
diff --git a/sound/soc/meson/axg-frddr.c b/sound/soc/meson/axg-frddr.c index c3ae8ac30745..e70c8c34c7db 100644 --- a/sound/soc/meson/axg-frddr.c +++ b/sound/soc/meson/axg-frddr.c @@ -7,10 +7,12 @@ * This driver implements the frontend playback DAI of AXG and G12A based SoCs */ +#include <linux/bitfield.h> #include <linux/clk.h> #include <linux/regmap.h> #include <linux/module.h> #include <linux/of_platform.h> +#include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dai.h> @@ -46,11 +48,28 @@ static int g12a_frddr_dai_prepare(struct snd_pcm_substream *substream, return 0; } +static int axg_frddr_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai); + unsigned int period, depth, val; + + period = params_period_bytes(params); + + /* Trim the FIFO depth if the period is small to improve latency */ + depth = min(period, fifo->depth); + val = (depth / AXG_FIFO_BURST) - 1; + regmap_update_bits(fifo->map, FIFO_CTRL1, CTRL1_FRDDR_DEPTH, + FIELD_PREP(CTRL1_FRDDR_DEPTH, val)); + + return 0; +} + static int axg_frddr_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai); - unsigned int val; int ret; /* Enable pclk to access registers and clock the fifo ip */ @@ -61,11 +80,6 @@ static int axg_frddr_dai_startup(struct snd_pcm_substream *substream, /* Apply single buffer mode to the interface */ regmap_update_bits(fifo->map, FIFO_CTRL0, CTRL0_FRDDR_PP_MODE, 0); - /* Use all fifo depth */ - val = (fifo->depth / AXG_FIFO_BURST) - 1; - regmap_update_bits(fifo->map, FIFO_CTRL1, CTRL1_FRDDR_DEPTH_MASK, - CTRL1_FRDDR_DEPTH(val)); - return 0; } @@ -84,8 +98,10 @@ static int axg_frddr_pcm_new(struct snd_soc_pcm_runtime *rtd, } static const struct snd_soc_dai_ops axg_frddr_ops = { + .hw_params = axg_frddr_dai_hw_params, .startup = axg_frddr_dai_startup, .shutdown = axg_frddr_dai_shutdown, + .pcm_new = axg_frddr_pcm_new, }; static struct snd_soc_dai_driver axg_frddr_dai_drv = { @@ -94,11 +110,12 @@ static struct snd_soc_dai_driver axg_frddr_dai_drv = { .stream_name = "Playback", .channels_min = 1, .channels_max = AXG_FIFO_CH_MAX, - .rates = AXG_FIFO_RATES, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 5515, + .rate_max = 768000, .formats = AXG_FIFO_FORMATS, }, .ops = &axg_frddr_ops, - .pcm_new = axg_frddr_pcm_new, }; static const char * const axg_frddr_sel_texts[] = { @@ -147,6 +164,7 @@ static const struct snd_soc_component_driver axg_frddr_component_drv = { .hw_free = axg_fifo_pcm_hw_free, .pointer = axg_fifo_pcm_pointer, .trigger = axg_fifo_pcm_trigger, + .legacy_dai_naming = 1, }; static const struct axg_fifo_match_data axg_frddr_match_data = { @@ -157,8 +175,10 @@ static const struct axg_fifo_match_data axg_frddr_match_data = { static const struct snd_soc_dai_ops g12a_frddr_ops = { .prepare = g12a_frddr_dai_prepare, + .hw_params = axg_frddr_dai_hw_params, .startup = axg_frddr_dai_startup, .shutdown = axg_frddr_dai_shutdown, + .pcm_new = axg_frddr_pcm_new, }; static struct snd_soc_dai_driver g12a_frddr_dai_drv = { @@ -167,11 +187,12 @@ static struct snd_soc_dai_driver g12a_frddr_dai_drv = { .stream_name = "Playback", .channels_min = 1, .channels_max = AXG_FIFO_CH_MAX, - .rates = AXG_FIFO_RATES, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 5515, + .rate_max = 768000, .formats = AXG_FIFO_FORMATS, }, .ops = &g12a_frddr_ops, - .pcm_new = axg_frddr_pcm_new, }; static SOC_ENUM_SINGLE_DECL(g12a_frddr_sel1_enum, FIFO_CTRL0, CTRL0_SEL_SHIFT, @@ -271,6 +292,7 @@ static const struct snd_soc_component_driver g12a_frddr_component_drv = { .hw_free = axg_fifo_pcm_hw_free, .pointer = axg_fifo_pcm_pointer, .trigger = axg_fifo_pcm_trigger, + .legacy_dai_naming = 1, }; static const struct axg_fifo_match_data g12a_frddr_match_data = { @@ -341,6 +363,7 @@ static const struct snd_soc_component_driver sm1_frddr_component_drv = { .hw_free = axg_fifo_pcm_hw_free, .pointer = axg_fifo_pcm_pointer, .trigger = axg_fifo_pcm_trigger, + .legacy_dai_naming = 1, }; static const struct axg_fifo_match_data sm1_frddr_match_data = { |