asoc: codecs: bolero: toggle zero gate for first hpf update

Instead of disabling hpf zero gate in hpf callback,
disable it while setting the inital cut off frequency
itself to not have any glitches.

Change-Id: I932aa0b2d68c2e8afd5cddd3d5fe17cbc98a5afb
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>

asoc/codecs/bolero/tx-macro.c

@@ -450,10 +450,10 @@ tx_hpf_set:
 	snd_soc_component_update_bits(component,
 			dec_cfg_reg, TX_HPF_CUT_OFF_FREQ_MASK,
 			hpf_cut_off_freq << 5);
-	snd_soc_component_update_bits(component, hpf_gate_reg, 0x03, 0x02);
+	snd_soc_component_update_bits(component, hpf_gate_reg, 0x02, 0x02);
 	/* Minimum 1 clk cycle delay is required as per HW spec */
 	usleep_range(1000, 1010);
-	snd_soc_component_update_bits(component, hpf_gate_reg, 0x03, 0x01);
+	snd_soc_component_update_bits(component, hpf_gate_reg, 0x02, 0x00);
 }
 
 static void tx_macro_mute_update_callback(struct work_struct *work)
@@ -865,6 +865,10 @@ static int tx_macro_enable_dec(struct snd_soc_dapm_widget *w,
 			tx_vol_ctl_reg, 0x20, 0x20);
 		snd_soc_component_update_bits(component,
 			hpf_gate_reg, 0x01, 0x00);
+		/*
+		 * Minimum 1 clk cycle delay is required as per HW spec
+		 */
+		usleep_range(1000, 1010);
 
 		hpf_cut_off_freq = (
 			snd_soc_component_read32(component, dec_cfg_reg) &
@@ -887,7 +891,7 @@ static int tx_macro_enable_dec(struct snd_soc_dapm_widget *w,
 					&tx_priv->tx_hpf_work[decimator].dwork,
 					msecs_to_jiffies(300));
 			snd_soc_component_update_bits(component,
-					hpf_gate_reg, 0x02, 0x02);
+					hpf_gate_reg, 0x03, 0x03);
 			/*
 			 * Minimum 1 clk cycle delay is required as per HW spec
 			 */