The patch ASoC: meson: axg-toddr: add support for spdifin backend
has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 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 984463a94d5cb23120bfe7d689077b940c25128b Mon Sep 17 00:00:00 2001 From: Jerome Brunet <jbru...@baylibre.com> Date: Tue, 11 Dec 2018 14:47:10 +0100 Subject: [PATCH] ASoC: meson: axg-toddr: add support for spdifin backend add IEC958_SUBFRAME_LE to the list of format accepted by the fifo frontend. As opposed to what was initially noted in the toddr dai driver, the spdifin does not place the msb at bit 28, it just output a whole spdif subframe. Placing the msb at bit 28 in the toddr driver just filters out the parity, user, channel status and validity bits. It is better to just provide the whole spdif subframe to the userspace and let the iec958 plugin deal with it. Signed-off-by: Jerome Brunet <jbru...@baylibre.com> Signed-off-by: Mark Brown <broo...@kernel.org> --- sound/soc/meson/axg-fifo.h | 3 ++- sound/soc/meson/axg-toddr.c | 15 +++++---------- 2 files changed, 7 insertions(+), 11 deletions(-) diff --git a/sound/soc/meson/axg-fifo.h b/sound/soc/meson/axg-fifo.h index cb6c4013ca33..d9f516cfbeda 100644 --- a/sound/soc/meson/axg-fifo.h +++ b/sound/soc/meson/axg-fifo.h @@ -25,7 +25,8 @@ struct snd_soc_pcm_runtime; SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S20_LE | \ SNDRV_PCM_FMTBIT_S24_LE | \ - SNDRV_PCM_FMTBIT_S32_LE) + SNDRV_PCM_FMTBIT_S32_LE | \ + SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) #define AXG_FIFO_BURST 8 #define AXG_FIFO_MIN_CNT 64 diff --git a/sound/soc/meson/axg-toddr.c b/sound/soc/meson/axg-toddr.c index c2c9bb312586..0e9ca3882ae5 100644 --- a/sound/soc/meson/axg-toddr.c +++ b/sound/soc/meson/axg-toddr.c @@ -25,6 +25,8 @@ #define CTRL0_TODDR_LSB_POS_MASK GENMASK(7, 3) #define CTRL0_TODDR_LSB_POS(x) ((x) << 3) +#define TODDR_MSB_POS 31 + static int axg_toddr_pcm_new(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai) { @@ -36,14 +38,7 @@ static int axg_toddr_dai_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai); - unsigned int type, width, msb = 31; - - /* - * NOTE: - * Almost all backend will place the MSB at bit 31, except SPDIF Input - * which will put it at index 28. When adding support for the SPDIF - * Input, we'll need to find which type of backend we are connected to. - */ + unsigned int type, width; switch (params_physical_width(params)) { case 8: @@ -66,8 +61,8 @@ static int axg_toddr_dai_hw_params(struct snd_pcm_substream *substream, CTRL0_TODDR_MSB_POS_MASK | CTRL0_TODDR_LSB_POS_MASK, CTRL0_TODDR_TYPE(type) | - CTRL0_TODDR_MSB_POS(msb) | - CTRL0_TODDR_LSB_POS(msb - (width - 1))); + CTRL0_TODDR_MSB_POS(TODDR_MSB_POS) | + CTRL0_TODDR_LSB_POS(TODDR_MSB_POS - (width - 1))); return 0; } -- 2.19.0.rc2
