ASoC: SOF: Intel: Rename deprecated DMIC IPC struct field

This patch restores the field name to fifo_bits_b since the
legacy firmware compatibility code (for firmware ABI 3.0.0 or earlier)
sets it in sof_link_dmic_load() function in topology.c. Setting of
reserved_2 didn't look appropriate.

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-19-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 59fa73f..4dcea5a 100644 (file)
--- a/include/sound/sof/dai-intel.h
+++ b/include/sound/sof/dai-intel.h
@@ -173,7 +173,7 @@ struct sof_ipc_dai_dmic_params {
        uint32_t fifo_fs;       /**< FIFO sample rate in Hz (8000..96000) */
        uint32_t reserved_1;    /**< Reserved */
        uint16_t fifo_bits;     /**< FIFO word length (16 or 32) */
-       uint16_t reserved_2;    /**< Reserved */
+       uint16_t fifo_bits_b;   /**< Deprecated since firmware ABI 3.0.1 */
 
        uint16_t duty_min;      /**< Min. mic clock duty cycle in % (20..80) */
        uint16_t duty_max;      /**< Max. mic clock duty cycle in % (min..80) */

diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index 602406f..3670b42 100644 (file)
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -2957,10 +2957,12 @@ static int sof_link_dmic_load(struct snd_soc_component *scomp, int index,
                        config->dmic.pdm[j].skew);
        }
 
-       if (SOF_ABI_VER(v->major, v->minor, v->micro) < SOF_ABI_VER(3, 0, 1)) {
-               /* this takes care of backwards compatible handling of fifo_bits_b */
-               config->dmic.reserved_2 = config->dmic.fifo_bits;
-       }
+       /*
+        * this takes care of backwards compatible handling of fifo_bits_b.
+        * It is deprecated since firmware ABI version 3.0.1.
+        */
+       if (SOF_ABI_VER(v->major, v->minor, v->micro) < SOF_ABI_VER(3, 0, 1))
+               config->dmic.fifo_bits_b = config->dmic.fifo_bits;
 
        /* send message to DSP */
        ret = sof_ipc_tx_message(sdev->ipc, config->hdr.cmd, config, size,