Commit 77b329d1 authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
Browse files

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: default avatarCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: default avatarBrian Austin <brian.austin@cirrus.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 2c84afb5

include/sound/cs35l35.h

+2 −0
Original line number Diff line number Diff line
@@ -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 */

sound/soc/codecs/cs35l35.c

+24 −8
Original line number Diff line number Diff line
@@ -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");

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