Unverified Commit 6298b787 authored by Janusz Jankowski's avatar Janusz Jankowski Committed by Mark Brown
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ASoC: SOF: Intel: ssp: BCLK delay parameter 



Some codecs require BCLK to be on for some time, before sending
any data. SOF can enable BCLK and then wait for guaranteed time,
before starting DMA on SSP start.

Signed-off-by: default avatarJanusz Jankowski <janusz.jankowski@linux.intel.com>
Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190722141402.7194-22-pierre-louis.bossart@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent a3ebccb5

include/sound/sof/dai-intel.h

+3 −0
Original line number Diff line number Diff line
@@ -76,6 +76,9 @@ struct sof_ipc_dai_ssp_params { 
	uint16_t tdm_per_slot_padding_flag;

	uint32_t clks_control;

	uint32_t quirks;

	uint32_t bclk_delay;	/* guaranteed time (ms) for which BCLK

				 * will be driven, before sending data

				 */

} __packed;



/* HDA Configuration Request - SOF_IPC_DAI_HDA_CONFIG */

include/uapi/sound/sof/abi.h

+1 −1
Original line number Diff line number Diff line
@@ -26,7 +26,7 @@ 


/* SOF ABI version major, minor and patch numbers */

#define SOF_ABI_MAJOR 3

#define SOF_ABI_MINOR 8

#define SOF_ABI_MINOR 9

#define SOF_ABI_PATCH 0



/* SOF ABI version number. Format within 32bit word is MMmmmppp */

include/uapi/sound/sof/tokens.h

+1 −0
Original line number Diff line number Diff line
@@ -75,6 +75,7 @@ 
#define SOF_TKN_INTEL_SSP_FRAME_PULSE_WIDTH	503

#define SOF_TKN_INTEL_SSP_QUIRKS		504

#define SOF_TKN_INTEL_SSP_TDM_PADDING_PER_SLOT	505

#define SOF_TKN_INTEL_SSP_BCLK_DELAY		506



/* DMIC */

#define SOF_TKN_INTEL_DMIC_DRIVER_VERSION	600

sound/soc/sof/topology.c

+3 −0
Original line number Diff line number Diff line
@@ -748,6 +748,9 @@ static const struct sof_topology_token ssp_tokens[] = { 
		get_token_u16,

		offsetof(struct sof_ipc_dai_ssp_params,

			 tdm_per_slot_padding_flag), 0},

	{SOF_TKN_INTEL_SSP_BCLK_DELAY, SND_SOC_TPLG_TUPLE_TYPE_WORD,

		get_token_u32,

		offsetof(struct sof_ipc_dai_ssp_params, bclk_delay), 0},



};

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