@@ -96,6 +96,8 @@ struct cs35l35_platform_data {
int adv_channel;
/* Shared Boost for stereo */
bool shared_bst;
+ /* Specifies this amp is using an external boost supply */
+ bool ext_bst;
/* ClassH Algorithm */
struct classh_cfg classh_algo;
/* Monitor Config */
@@ -162,6 +162,27 @@ static bool cs35l35_precious_register(struct device *dev, unsigned int reg)
}
}
+static int cs35l35_wait_for_pdn(struct cs35l35_private *cs35l35)
+{
+ int ret;
+
+ if (cs35l35->pdata.ext_bst) {
+ usleep_range(5000, 5500);
+ return 0;
+ }
+
+ reinit_completion(&cs35l35->pdn_done);
+
+ ret = wait_for_completion_timeout(&cs35l35->pdn_done,
+ msecs_to_jiffies(100));
+ if (ret == 0) {
+ dev_err(cs35l35->dev, "PDN_DONE did not complete\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
static int cs35l35_sdin_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
@@ -191,14 +212,7 @@ static int cs35l35_sdin_event(struct snd_soc_dapm_widget *w,
regmap_update_bits(cs35l35->regmap, CS35L35_AMP_DIG_VOL_CTL,
CS35L35_AMP_DIGSFT_MASK, 0);
- reinit_completion(&cs35l35->pdn_done);
-
- ret = wait_for_completion_timeout(&cs35l35->pdn_done,
- msecs_to_jiffies(100));
- if (ret == 0) {
- dev_err(codec->dev, "TIMEOUT PDN_DONE did not complete in 100ms\n");
- ret = -ETIMEDOUT;
- }
+ ret = cs35l35_wait_for_pdn(cs35l35);
regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
CS35L35_MCLK_DIS_MASK,
@@ -1198,6 +1212,8 @@ static int cs35l35_handle_of_data(struct i2c_client *i2c_client,
"cirrus,shared-boost");
}
+ pdata->ext_bst = of_property_read_bool(np, "cirrus,external-boost");
+
pdata->gain_zc = of_property_read_bool(np, "cirrus,amp-gain-zc");
classh = of_get_child_by_name(np, "cirrus,classh-internal-algo");
When using an external boost supply the PDN_DONE bit is not set, update the handling in this case to use to use an appropriate fixed delay. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> --- include/sound/cs35l35.h | 2 ++ sound/soc/codecs/cs35l35.c | 32 ++++++++++++++++++++++++-------- 2 files changed, 26 insertions(+), 8 deletions(-)