ASoC: mt8365: Make non-exported functions static

The compilers warn if functions without a prototype are not static so add
appropriate static declarations.
Reported-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Nathan Chancellor <nathan@kernel.org> # build
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20240907-asoc-fix-mt8365-build-v1-4-7ad0bac20161@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/mediatek/mt8365/mt8365-afe-clk.c

@@ -295,7 +295,7 @@ int mt8365_afe_disable_afe_on(struct mtk_base_afe *afe)
 	return 0;
 }
 
-int mt8365_afe_hd_engen_enable(struct mtk_base_afe *afe, bool apll1)
+static int mt8365_afe_hd_engen_enable(struct mtk_base_afe *afe, bool apll1)
 {
 	if (apll1)
 		regmap_update_bits(afe->regmap, AFE_HD_ENGEN_ENABLE,
@@ -307,7 +307,7 @@ int mt8365_afe_hd_engen_enable(struct mtk_base_afe *afe, bool apll1)
 	return 0;
 }
 
-int mt8365_afe_hd_engen_disable(struct mtk_base_afe *afe, bool apll1)
+static int mt8365_afe_hd_engen_disable(struct mtk_base_afe *afe, bool apll1)
 {
 	if (apll1)
 		regmap_update_bits(afe->regmap, AFE_HD_ENGEN_ENABLE,

sound/soc/mediatek/mt8365/mt8365-afe-pcm.c

@@ -170,7 +170,7 @@ bool mt8365_afe_channel_supported(unsigned int channel, unsigned int id)
 	return false;
 }
 
-bool mt8365_afe_clk_group_44k(int sample_rate)
+static bool mt8365_afe_clk_group_44k(int sample_rate)
 {
 	if (sample_rate == 11025 ||
 	    sample_rate == 22050 ||
@@ -182,7 +182,7 @@ bool mt8365_afe_clk_group_44k(int sample_rate)
 		return false;
 }
 
-bool mt8365_afe_clk_group_48k(int sample_rate)
+static bool mt8365_afe_clk_group_48k(int sample_rate)
 {
 	return (!mt8365_afe_clk_group_44k(sample_rate));
 }
@@ -496,7 +496,7 @@ static int mt8365_afe_configure_cm(struct mtk_base_afe *afe,
 	return 0;
 }
 
-int mt8365_afe_fe_startup(struct snd_pcm_substream *substream,
+static int mt8365_afe_fe_startup(struct snd_pcm_substream *substream,
 				 struct snd_soc_dai *dai)
 {
 	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
@@ -714,7 +714,7 @@ static int mt8365_afe_fe_prepare(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-int mt8365_afe_fe_trigger(struct snd_pcm_substream *substream, int cmd,
+static int mt8365_afe_fe_trigger(struct snd_pcm_substream *substream, int cmd,
 				 struct snd_soc_dai *dai)
 {
 	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);