ASoC: cros_ec_codec: Add endianness flag in i2s_rx_component_driver

The endianness flag is used on the CODEC side to specify an
ambivalence to endian, typically because it is lost over the hardware
link. The i2s_rx component receives audio over an I2S DAI and as such
should have endianness applied.

A fixup is also required to use the width directly rather than relying
on the format in hw_params, now both little and big endian would be
supported.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220504170905.332415-27-ckeepax@opensource.cirrus.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cros_ec_codec.c

@@ -232,11 +232,11 @@ static int i2s_rx_hw_params(struct snd_pcm_substream *substream,
 	if (params_rate(params) != 48000)
 		return -EINVAL;
 
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		depth = EC_CODEC_I2S_RX_SAMPLE_DEPTH_16;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		depth = EC_CODEC_I2S_RX_SAMPLE_DEPTH_24;
 		break;
 	default:
@@ -387,6 +387,7 @@ static const struct snd_soc_component_driver i2s_rx_component_driver = {
 	.num_dapm_widgets	= ARRAY_SIZE(i2s_rx_dapm_widgets),
 	.dapm_routes		= i2s_rx_dapm_routes,
 	.num_dapm_routes	= ARRAY_SIZE(i2s_rx_dapm_routes),
+	.endianness		= 1,
 };
 
 static void *wov_map_shm(struct cros_ec_codec_priv *priv,