ASoC: rt5665: add clock sync control for master mode

We can sleect the i2s clock source for each i2s bus in master mode.
The choice is depended on the HW design and the use case.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c
index ef27561c49930f6a92f0d8dfa1df6910a2868dca..7e64b25f8585e75dae7a19671e0f2b24d2407b58 100644 (file)
--- a/sound/soc/codecs/rt5665.c
+++ b/sound/soc/codecs/rt5665.c
@@ -1381,6 +1381,16 @@ static void rt5665_jack_detect_handler(struct work_struct *work)
        mutex_unlock(&rt5665->calibrate_mutex);
 }
 
+static const char * const rt5665_clk_sync[] = {
+       "I2S1_1", "I2S1_2", "I2S2", "I2S3", "IF2 Slave", "IF3 Slave"
+};
+
+static const struct soc_enum rt5665_enum[] = {
+       SOC_ENUM_SINGLE(RT5665_I2S1_SDP, 11, 5, rt5665_clk_sync),
+       SOC_ENUM_SINGLE(RT5665_I2S2_SDP, 11, 5, rt5665_clk_sync),
+       SOC_ENUM_SINGLE(RT5665_I2S3_SDP, 11, 5, rt5665_clk_sync),
+};
+
 static const struct snd_kcontrol_new rt5665_snd_controls[] = {
        /* Headphone Output Volume */
        SOC_DOUBLE_R_EXT_TLV("Headphone Playback Volume", RT5665_HPL_GAIN,
@@ -1446,6 +1456,11 @@ static const struct snd_kcontrol_new rt5665_snd_controls[] = {
        SOC_DOUBLE_TLV("STO2 ADC Boost Gain Volume", RT5665_STO2_ADC_BOOST,
                RT5665_STO2_ADC_L_BST_SFT, RT5665_STO2_ADC_R_BST_SFT,
                3, 0, adc_bst_tlv),
+
+       /* I2S3 CLK Source */
+       SOC_ENUM("I2S1 Master Clk Sel", rt5665_enum[0]),
+       SOC_ENUM("I2S2 Master Clk Sel", rt5665_enum[1]),
+       SOC_ENUM("I2S3 Master Clk Sel", rt5665_enum[2]),
 };
 
 /**