ASoC: rt5670: Keep sysclk on if JD func is used

System clock is necessary for rt5670 JD function. We assume system
clock source will be set in machine driver. So there are two things
left we should do in codec driver.
1. Set sysclk to codec internal clock in probe since machine driver
   may not do that before JD function is registered.
2. Power up PLL once sysclk source is switched to PLL.

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

diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c
index 78d85de8af6fc0dd20fb18cedeaaa6e787f89098..0a027bc943991c4d30db3f575c7893dec2c3df39 100644 (file)
--- a/sound/soc/codecs/rt5670.c
+++ b/sound/soc/codecs/rt5670.c
@@ -2190,6 +2190,13 @@ static int rt5670_set_dai_sysclk(struct snd_soc_dai *dai,
        if (freq == rt5670->sysclk && clk_id == rt5670->sysclk_src)
                return 0;
 
+       if (rt5670->pdata.jd_mode) {
+               if (clk_id == RT5670_SCLK_S_PLL1)
+                       snd_soc_dapm_force_enable_pin(&codec->dapm, "PLL1");
+               else
+                       snd_soc_dapm_disable_pin(&codec->dapm, "PLL1");
+               snd_soc_dapm_sync(&codec->dapm);
+       }
        switch (clk_id) {
        case RT5670_SCLK_S_MCLK:
                reg_val |= RT5670_SCLK_SRC_MCLK;
@@ -2628,6 +2635,10 @@ static int rt5670_i2c_probe(struct i2c_client *i2c,
        }
 
        if (rt5670->pdata.jd_mode) {
+               regmap_update_bits(rt5670->regmap, RT5670_GLB_CLK,
+                                  RT5670_SCLK_SRC_MASK, RT5670_SCLK_SRC_RCCLK);
+               rt5670->sysclk = 0;
+               rt5670->sysclk_src = RT5670_SCLK_S_RCCLK;
                regmap_update_bits(rt5670->regmap, RT5670_PWR_ANLG1,
                                   RT5670_PWR_MB, RT5670_PWR_MB);
                regmap_update_bits(rt5670->regmap, RT5670_PWR_ANLG2,