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

Commit 3612525b authored by Sudheer Papothi's avatar Sudheer Papothi Committed by Gerrit - the friendly Code Review server
Browse files

ASoC: wcd9335: Configure DMIC clock rate for ECPP path 



DMIC clock on ECPP(Echo Cancellation Ping-Pong) hardware path
can run at lower clock rate to avoid power consumption. Select
ECPP dmic clock rate when decimator is connected only to ECPP
path.

CRs-fixed: 1022917
Change-Id: I968e1fe6b099ebf5334eadb209219181293b207f
Signed-off-by: default avatarSudheer Papothi <spapothi@codeaurora.org>
Signed-off-by: default avatarVidyakumar Athota <vathota@codeaurora.org>
parent 00e8fad3

sound/soc/codecs/wcd9335.c

+23 −0
Original line number Diff line number Diff line
@@ -5639,6 +5639,18 @@ static u32 tasha_get_dmic_sample_rate(struct snd_soc_codec *codec, 
		tx_stream_fs = snd_soc_read(codec, tx_fs_reg) & 0x0F;

		dmic_fs = tx_stream_fs <= 4 ? WCD9XXX_DMIC_SAMPLE_RATE_2P4MHZ :

					WCD9XXX_DMIC_SAMPLE_RATE_4P8MHZ;



		/*

		 * Check for ECPP path selection and DEC1 not connected to

		 * any other audio path to apply ECPP DMIC sample rate

		 */

		if ((adc_mux_index == 1) &&

		    ((snd_soc_read(codec, WCD9335_CPE_SS_US_EC_MUX_CFG)

				   & 0x0F) == 0x0A) &&

		    ((snd_soc_read(codec, WCD9335_CDC_IF_ROUTER_TX_MUX_CFG0)

				   & 0x0C) == 0x00)) {

			dmic_fs = pdata->ecpp_dmic_sample_rate;

		}

	} else {

		dmic_fs = pdata->dmic_sample_rate;

	}
@@ -12299,6 +12311,17 @@ static int tasha_handle_pdata(struct tasha_priv *tasha, 
		 */

		pdata->mad_dmic_sample_rate = pdata->dmic_sample_rate;

	}

	if (pdata->ecpp_dmic_sample_rate ==

	    WCD9XXX_DMIC_SAMPLE_RATE_UNDEFINED) {

		dev_info(codec->dev,

			 "%s: ecpp_dmic_rate invalid default = %d\n",

			 __func__, def_dmic_rate);

		/*

		 * use dmic_sample_rate as the default for ECPP DMIC

		 * if ecpp dmic sample rate is undefined

		 */

		pdata->ecpp_dmic_sample_rate = pdata->dmic_sample_rate;

	}



	if (pdata->dmic_clk_drv ==

	    WCD9XXX_DMIC_CLK_DRIVE_UNDEFINED) {