The patch
ASoC: sun4i-i2s: Pass the channels number as an argument
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 0083a507a78fdfa868acc0709408b59e72488a61 Mon Sep 17 00:00:00 2001
From: Maxime Ripard maxime.ripard@bootlin.com Date: Mon, 19 Aug 2019 21:25:25 +0200 Subject: [PATCH] ASoC: sun4i-i2s: Pass the channels number as an argument
The channels number have been hardcoded to 2 so far, while the controller supports more than that.
Remove the instance where it has been hardcoded to compute the BCLK divider, and pass it through as an argument to ease further support of more channels.
Signed-off-by: Maxime Ripard maxime.ripard@bootlin.com Link: https://lore.kernel.org/r/48887cf7abfaab6597db233b24d7a088a913e48a.156624245... Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/sunxi/sun4i-i2s.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c index 4c636f1cf7dc..6b172dfbc25d 100644 --- a/sound/soc/sunxi/sun4i-i2s.c +++ b/sound/soc/sunxi/sun4i-i2s.c @@ -238,10 +238,11 @@ static unsigned long sun8i_i2s_get_bclk_parent_rate(const struct sun4i_i2s *i2s) static int sun4i_i2s_get_bclk_div(struct sun4i_i2s *i2s, unsigned long parent_rate, unsigned int sampling_rate, + unsigned int channels, unsigned int word_size) { const struct sun4i_i2s_clk_div *dividers = i2s->variant->bclk_dividers; - int div = parent_rate / sampling_rate / word_size / 2; + int div = parent_rate / sampling_rate / word_size / channels; int i;
for (i = 0; i < i2s->variant->num_bclk_dividers; i++) { @@ -286,6 +287,7 @@ static bool sun4i_i2s_oversample_is_valid(unsigned int oversample)
static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai, unsigned int rate, + unsigned int channels, unsigned int word_size) { struct sun4i_i2s *i2s = snd_soc_dai_get_drvdata(dai); @@ -333,7 +335,7 @@ static int sun4i_i2s_set_clk_rate(struct snd_soc_dai *dai,
bclk_parent_rate = i2s->variant->get_bclk_parent_rate(i2s); bclk_div = sun4i_i2s_get_bclk_div(i2s, bclk_parent_rate, - rate, word_size); + rate, channels, word_size); if (bclk_div < 0) { dev_err(dai->dev, "Unsupported BCLK divider: %d\n", bclk_div); return -EINVAL; @@ -488,7 +490,7 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream, regmap_field_write(i2s->field_fmt_sr, sr);
return sun4i_i2s_set_clk_rate(dai, params_rate(params), - params_width(params)); + 2, params_width(params)); }
static int sun4i_i2s_set_soc_fmt(const struct sun4i_i2s *i2s,