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: Janusz Jankowski <janusz.jankowski@linux.intel.com>
Signed-off-by: Pierre-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: Mark Brown <broonie@kernel.org>

diff --git a/include/sound/sof/dai-intel.h b/include/sound/sof/dai-intel.h
index 4bb8ee1..a81afd3 100644 (file)
--- a/include/sound/sof/dai-intel.h
+++ b/include/sound/sof/dai-intel.h
@@ -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 */

diff --git a/include/uapi/sound/sof/abi.h b/include/uapi/sound/sof/abi.h
index 4a9c244..dff70a4 100644 (file)
--- a/include/uapi/sound/sof/abi.h
+++ b/include/uapi/sound/sof/abi.h
@@ -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 */

diff --git a/include/uapi/sound/sof/tokens.h b/include/uapi/sound/sof/tokens.h
index dc1b27d..6435240 100644 (file)
--- a/include/uapi/sound/sof/tokens.h
+++ b/include/uapi/sound/sof/tokens.h
@@ -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

diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index 432ae34..12b7d90 100644 (file)
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -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},
 
 };