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Commit 446929c0 authored by Yeleswarapu Nagaradhesh's avatar Yeleswarapu Nagaradhesh Committed by Gerrit - the friendly Code Review server
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ASoC: wcd: add support for wcd9326 codec 



Use efuse register values, to differentiate between
wcd9326 and wcd9335 codecs.

Change-Id: I68e7ae5eb1717dccd0af975670ac3644304996b9
Signed-off-by: default avatarYeleswarapu Nagaradhesh <nagaradh@codeaurora.org>
Signed-off-by: default avatarSimmi Pateriya <simmip@codeaurora.org>
parent 49c2753f

include/linux/mfd/wcd9xxx/core.h

+1 −0
Original line number Diff line number Diff line
@@ -67,6 +67,7 @@ enum codec_variant { 
	WCD9XXX,

	WCD9330,

	WCD9335,

	WCD9326,

};



enum {

sound/soc/codecs/wcd9335.c

+64 −0
Original line number Diff line number Diff line
@@ -152,6 +152,8 @@ enum tasha_sido_voltage { 
	SIDO_VOLTAGE_NOMINAL_MV = 1100,

};



static enum codec_variant codec_ver;



static int dig_core_collapse_enable = 1;

module_param(dig_core_collapse_enable, int,

		S_IRUGO | S_IWUSR | S_IWGRP);
@@ -12302,6 +12304,65 @@ err: 
	return;

}



/*

 * tasha_codec_ver: to get tasha codec version

 * @codec: handle to snd_soc_codec *

 * return enum codec_variant - version

 */

enum codec_variant tasha_codec_ver(void)

{

	return codec_ver;

}

EXPORT_SYMBOL(tasha_codec_ver);



static int __tasha_enable_efuse_sensing(struct tasha_priv *tasha)

{

	__tasha_cdc_mclk_enable(tasha, true);



	wcd9xxx_reg_update_bits(&tasha->wcd9xxx->core_res,

			WCD9335_CHIP_TIER_CTRL_EFUSE_CTL, 0x1E, 0x20);

	wcd9xxx_reg_update_bits(&tasha->wcd9xxx->core_res,

			WCD9335_CHIP_TIER_CTRL_EFUSE_CTL, 0x01, 0x01);



	/*

	 * 5ms sleep required after enabling efuse control

	 * before checking the status.

	 */

	usleep_range(5000, 5500);

	if (!(wcd9xxx_reg_read(&tasha->wcd9xxx->core_res,

				WCD9335_CHIP_TIER_CTRL_EFUSE_STATUS) & 0x01))

		WARN(1, "%s: Efuse sense is not complete\n", __func__);



	__tasha_cdc_mclk_enable(tasha, false);



	return 0;

}



void tasha_get_codec_ver(struct tasha_priv *tasha)

{

	int i;

	u8 val;

	struct tasha_reg_mask_val codec_reg[] = {

		{WCD9335_CHIP_TIER_CTRL_EFUSE_VAL_OUT10, 0xFF, 0xFF},

		{WCD9335_CHIP_TIER_CTRL_EFUSE_VAL_OUT11, 0xFF, 0x83},

		{WCD9335_CHIP_TIER_CTRL_EFUSE_VAL_OUT12, 0xFF, 0x0A},

	};



	__tasha_enable_efuse_sensing(tasha);

	for (i = 0; i < ARRAY_SIZE(codec_reg); i++) {

		val = wcd9xxx_reg_read(&tasha->wcd9xxx->core_res,

				codec_reg[i].reg);

		if (!(val && codec_reg[i].val)) {

			codec_ver = WCD9335;

			goto ret;

		}

	}

	codec_ver = WCD9326;

ret:

	pr_debug("%s: codec is %d\n", __func__, codec_ver);

}

EXPORT_SYMBOL(tasha_get_codec_ver);



static int tasha_probe(struct platform_device *pdev)

{

	int ret = 0;
@@ -12394,6 +12455,9 @@ static int tasha_probe(struct platform_device *pdev) 
	/* Update codec register default values */

	tasha_update_reg_defaults(tasha);

	schedule_work(&tasha->swr_add_devices_work);



	tasha_get_codec_ver(tasha);



	return ret;



resmgr_remove:

sound/soc/codecs/wcd9335.h

+1 −0
Original line number Diff line number Diff line
@@ -144,4 +144,5 @@ extern int tasha_codec_enable_standalone_micbias(struct snd_soc_codec *codec, 
						 bool enable);

extern int tasha_set_spkr_mode(struct snd_soc_codec *codec, int mode);

extern int tasha_set_spkr_gain_offset(struct snd_soc_codec *codec, int offset);

extern enum codec_variant tasha_codec_ver(void);

#endif