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ASoC: SOF: ipc3-topology: Make sure that only one cmd is sent in dai_config

Message ID 20230512110317.5180-1-peter.ujfalusi@linux.intel.com (mailing list archive)
State Accepted
Commit 4708449eafe60742334606168926985798c9c9b8
Headers show
Series ASoC: SOF: ipc3-topology: Make sure that only one cmd is sent in dai_config | expand

Commit Message

Peter Ujfalusi May 12, 2023, 11:03 a.m. UTC
The commands in sof_ipc_dai_config.flags are encoded as bits:
1 (bit0) - hw_params
2 (bit1) - hw_free
4 (bit2) - pause

These are commands, they cannot be combined as one would assume, for
example
3 (bit0 | bit1) is invalid.

This can happen right at the second start of a stream as at the end of the
first stream we set the hw_free command (bit1) and on the second start we
would OR on top of it the hw_params (bit0).

Fixes: b66bfc3a9810 ("ASoC: SOF: sof-audio: Fix broken early bclk feature for SSP")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/soc/sof/ipc3-topology.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

Comments

Mark Brown May 15, 2023, 11:09 a.m. UTC | #1
On Fri, 12 May 2023 14:03:17 +0300, Peter Ujfalusi wrote:
> The commands in sof_ipc_dai_config.flags are encoded as bits:
> 1 (bit0) - hw_params
> 2 (bit1) - hw_free
> 4 (bit2) - pause
> 
> These are commands, they cannot be combined as one would assume, for
> example
> 3 (bit0 | bit1) is invalid.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: SOF: ipc3-topology: Make sure that only one cmd is sent in dai_config
      commit: 4708449eafe60742334606168926985798c9c9b8

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
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Patch

diff --git a/sound/soc/sof/ipc3-topology.c b/sound/soc/sof/ipc3-topology.c
index fc1eb8e2de2c..ba4ef290b634 100644
--- a/sound/soc/sof/ipc3-topology.c
+++ b/sound/soc/sof/ipc3-topology.c
@@ -2103,10 +2103,13 @@  static int sof_ipc3_dai_config(struct snd_sof_dev *sdev, struct snd_sof_widget *
 	 * For the case of PAUSE/HW_FREE, since there are no quirks, flags can be used as is.
 	 */
 
-	if (flags & SOF_DAI_CONFIG_FLAGS_HW_PARAMS)
+	if (flags & SOF_DAI_CONFIG_FLAGS_HW_PARAMS) {
+		/* Clear stale command */
+		config->flags &= ~SOF_DAI_CONFIG_FLAGS_CMD_MASK;
 		config->flags |= flags;
-	else
+	} else {
 		config->flags = flags;
+	}
 
 	/* only send the IPC if the widget is set up in the DSP */
 	if (swidget->use_count > 0) {