Update Linux to v5.4.148

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.4.148.tar.gz

Change-Id: Ib3d26c5ba9b022e2e03533005c4fed4d7c30b61b
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/sound/soc/meson/axg-tdm-interface.c b/sound/soc/meson/axg-tdm-interface.c
index d51f334..f5a431b 100644
--- a/sound/soc/meson/axg-tdm-interface.c
+++ b/sound/soc/meson/axg-tdm-interface.c
@@ -119,16 +119,23 @@
 {
 	struct axg_tdm_iface *iface = snd_soc_dai_get_drvdata(dai);
 
-	/* These modes are not supported */
-	if (fmt & (SND_SOC_DAIFMT_CBS_CFM | SND_SOC_DAIFMT_CBM_CFS)) {
-		dev_err(dai->dev, "only CBS_CFS and CBM_CFM are supported\n");
-		return -EINVAL;
-	}
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBS_CFS:
+		if (!iface->mclk) {
+			dev_err(dai->dev, "cpu clock master: mclk missing\n");
+			return -ENODEV;
+		}
+		break;
 
-	/* If the TDM interface is the clock master, it requires mclk */
-	if (!iface->mclk && (fmt & SND_SOC_DAIFMT_CBS_CFS)) {
-		dev_err(dai->dev, "cpu clock master: mclk missing\n");
-		return -ENODEV;
+	case SND_SOC_DAIFMT_CBM_CFM:
+		break;
+
+	case SND_SOC_DAIFMT_CBS_CFM:
+	case SND_SOC_DAIFMT_CBM_CFS:
+		dev_err(dai->dev, "only CBS_CFS and CBM_CFM are supported\n");
+		/* Fall-through */
+	default:
+		return -EINVAL;
 	}
 
 	iface->fmt = fmt;
@@ -319,7 +326,8 @@
 	if (ret)
 		return ret;
 
-	if (iface->fmt & SND_SOC_DAIFMT_CBS_CFS) {
+	if ((iface->fmt & SND_SOC_DAIFMT_MASTER_MASK) ==
+	    SND_SOC_DAIFMT_CBS_CFS) {
 		ret = axg_tdm_iface_set_sclk(dai, params);
 		if (ret)
 			return ret;
@@ -459,8 +467,20 @@
 	return ret;
 }
 
+static const struct snd_soc_dapm_widget axg_tdm_iface_dapm_widgets[] = {
+	SND_SOC_DAPM_SIGGEN("Playback Signal"),
+};
+
+static const struct snd_soc_dapm_route axg_tdm_iface_dapm_routes[] = {
+	{ "Loopback", NULL, "Playback Signal" },
+};
+
 static const struct snd_soc_component_driver axg_tdm_iface_component_drv = {
-	.set_bias_level	= axg_tdm_iface_set_bias_level,
+	.dapm_widgets		= axg_tdm_iface_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(axg_tdm_iface_dapm_widgets),
+	.dapm_routes		= axg_tdm_iface_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(axg_tdm_iface_dapm_routes),
+	.set_bias_level		= axg_tdm_iface_set_bias_level,
 };
 
 static const struct of_device_id axg_tdm_iface_of_match[] = {