Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0c3aebb8 authored by Bhalchandra Gajare's avatar Bhalchandra Gajare
Browse files

ASoC: apq8084: Create sysfs property to enable CPE 



Do not enable CPE for wcd9330 codec unless specifically requested to
enable CPE through sysfs.

Change-Id: Ib017217c3acbfcda8fb0d3ffc19d414c368e39c1
Signed-off-by: default avatarBhalchandra Gajare <gajare@codeaurora.org>
parent 172bca28

sound/soc/msm/apq8084.c

+76 −6
Original line number Diff line number Diff line
@@ -87,6 +87,33 @@ static void *adsp_state_notifier; 


#define ADSP_STATE_READY_TIMEOUT_MS 3000



struct cpe_load_priv {

	void *cdc_handle;

	struct kobject *cpe_load_kobj;

	struct attribute_group *attr_group;

};



static int cpe_load;



static ssize_t cpe_load_store(struct kobject *kobj,

	struct kobj_attribute *attr,

	const char *buf,

	size_t count);



static struct kobj_attribute cpe_load_attr =

	__ATTR(cpe_load, 0600, NULL, cpe_load_store);



static struct attribute *attrs[] = {

	&cpe_load_attr.attr,

	NULL,

};



static struct attribute_group attr_grp = {

	.attrs = attrs,

};



static struct cpe_load_priv cpe_priv;



static inline int param_is_mask(int p)

{

	return ((p >= SNDRV_PCM_HW_PARAM_FIRST_MASK) &&
@@ -2026,6 +2053,44 @@ static int msm_snd_get_ext_clk_cnt(void) 
	return clk_users;

}



static int apq8084_tomtom_cpe_enable(struct snd_soc_codec *codec)

{

	int ret = 0;



	ret = tomtom_enable_cpe(codec);

	if (IS_ERR_VALUE(ret))

		pr_err("%s: CPE enable failed, err (0x%x)\n",

			__func__, ret);

	return ret;

}



static ssize_t cpe_load_store(struct kobject *kobj,

	struct kobj_attribute *attr,

	const char *buf,

	size_t count)

{

	int ret = 0;



	if (cpe_load) {

		pr_err("%s: CPE already loaded\n",

			__func__);

		return count;

	}



	sscanf(buf, "%du", &cpe_load);



	if (cpe_load) {

		ret = apq8084_tomtom_cpe_enable(cpe_priv.cdc_handle);

		if (IS_ERR_VALUE(ret))

			cpe_load = 0;

		else

			pr_info("%s: CPE enabled for tomtom_codec\n",

				__func__);

	}



	return count;

}



static int msm_audrx_init(struct snd_soc_pcm_runtime *rtd)

{

	int err;
@@ -2203,12 +2268,17 @@ static int msm_audrx_init(struct snd_soc_pcm_runtime *rtd) 
		tomtom_register_ext_clk_cb(msm_snd_enable_codec_ext_clk,

					   msm_snd_get_ext_clk_cnt,

					   rtd->codec);

		err = tomtom_enable_cpe(rtd->codec);

		if (IS_ERR_VALUE(err)) {

			pr_err("%s: Failed to enable cpe, err = 0x%x\n",

				__func__, err);

			/* Don't fail card registraion if CPE failed */

			err = 0;

		cpe_priv.cdc_handle = codec;

		cpe_priv.attr_group = &attr_grp;

		cpe_priv.cpe_load_kobj = kobject_create_and_add("snd_apq8084",

						       kernel_kobj);

		if (!cpe_priv.cpe_load_kobj) {

			pr_err("%s: cpe_load: sysfs create_add failed\n",

				__func__);

		} else if (sysfs_create_group(cpe_priv.cpe_load_kobj,

					      cpe_priv.attr_group)) {

			pr_err("%s: sysfs_create_group failed\n", __func__);

			kobject_del(cpe_priv.cpe_load_kobj);

		}

	} else

		taiko_event_register(apq8084_codec_event_cb, rtd->codec);