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Commit 1dbd54de authored by Laxminath Kasam's avatar Laxminath Kasam Committed by Gerrit - the friendly Code Review server
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ASoC: wsa881x-analog: ocp register update during playback 



During playback, read wsa881x temperature and update
ocp register based on certain temperature conditions
to avoid speaker damage.

Change-Id: Ibe41e9872ae54c931674af9a34a2ac7da1b36282
Signed-off-by: default avatarLaxminath Kasam <lkasam@codeaurora.org>
parent 54b61b56

sound/soc/codecs/wsa881x-analog.c

+9 −1
Original line number Diff line number Diff line
@@ -75,6 +75,12 @@ enum { 


#define WSA881X_OCP_CTL_TIMER_SEC 2

#define WSA881X_OCP_CTL_TEMP_CELSIUS 25

#define WSA881X_OCP_CTL_POLL_TIMER_SEC 60



static int wsa881x_ocp_poll_timer_sec = WSA881X_OCP_CTL_POLL_TIMER_SEC;

module_param(wsa881x_ocp_poll_timer_sec, int,

		S_IRUGO | S_IWUSR | S_IWGRP);

MODULE_PARM_DESC(wsa881x_ocp_poll_timer_sec, "timer for ocp ctl polling");



static int32_t wsa881x_resource_acquire(struct snd_soc_codec *codec,

						bool enable);
@@ -807,6 +813,9 @@ static void wsa881x_ocp_ctl_work(struct work_struct *work) 
		snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, 0xC0, 0x00);

	else

		snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL, 0xC0, 0xC0);



		schedule_delayed_work(&wsa881x->ocp_ctl_work,

			msecs_to_jiffies(wsa881x_ocp_poll_timer_sec * 1000));

}



static int wsa881x_spkr_pa_event(struct snd_soc_dapm_widget *w,
@@ -987,7 +996,6 @@ static int32_t wsa881x_temp_reg_read(struct snd_soc_codec *codec, 
	wsa_temp_reg->d2_msb = snd_soc_read(codec, WSA881X_OTP_REG_3);

	wsa_temp_reg->d2_lsb = snd_soc_read(codec, WSA881X_OTP_REG_4);



	snd_soc_update_bits(codec, WSA881X_TEMP_OP, 0x04, 0x00);

	wsa881x_resource_acquire(codec, false);



	return 0;