forked from Minki/linux
ASoC: cs35l35: Correct handling of PDN_DONE with external boost
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> Acked-by: Brian Austin <brian.austin@cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -96,6 +96,8 @@ struct cs35l35_platform_data {
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int adv_channel;
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/* Shared Boost for stereo */
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bool shared_bst;
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/* Specifies this amp is using an external boost supply */
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bool ext_bst;
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/* ClassH Algorithm */
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struct classh_cfg classh_algo;
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/* Monitor Config */
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@ -162,6 +162,27 @@ static bool cs35l35_precious_register(struct device *dev, unsigned int reg)
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}
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}
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static int cs35l35_wait_for_pdn(struct cs35l35_private *cs35l35)
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{
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int ret;
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if (cs35l35->pdata.ext_bst) {
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usleep_range(5000, 5500);
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return 0;
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}
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reinit_completion(&cs35l35->pdn_done);
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ret = wait_for_completion_timeout(&cs35l35->pdn_done,
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msecs_to_jiffies(100));
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if (ret == 0) {
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dev_err(cs35l35->dev, "PDN_DONE did not complete\n");
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return -ETIMEDOUT;
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}
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return 0;
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}
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static int cs35l35_sdin_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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@ -191,14 +212,7 @@ static int cs35l35_sdin_event(struct snd_soc_dapm_widget *w,
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regmap_update_bits(cs35l35->regmap, CS35L35_AMP_DIG_VOL_CTL,
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CS35L35_AMP_DIGSFT_MASK, 0);
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reinit_completion(&cs35l35->pdn_done);
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ret = wait_for_completion_timeout(&cs35l35->pdn_done,
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msecs_to_jiffies(100));
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if (ret == 0) {
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dev_err(codec->dev, "TIMEOUT PDN_DONE did not complete in 100ms\n");
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ret = -ETIMEDOUT;
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}
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ret = cs35l35_wait_for_pdn(cs35l35);
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regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1,
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CS35L35_MCLK_DIS_MASK,
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@ -1198,6 +1212,8 @@ static int cs35l35_handle_of_data(struct i2c_client *i2c_client,
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"cirrus,shared-boost");
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}
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pdata->ext_bst = of_property_read_bool(np, "cirrus,external-boost");
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pdata->gain_zc = of_property_read_bool(np, "cirrus,amp-gain-zc");
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classh = of_get_child_by_name(np, "cirrus,classh-internal-algo");
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