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

Commit 11cef5f0 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Use DC servo startup mode when not doing DCS correction 



Devices which do not have a DCS correction applied can use the explicit
DC servo startup mode for optimal startup performance. This most
immediately affects the WM8958.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent 4b666729

sound/soc/codecs/wm_hubs.c

+14 −6
Original line number Diff line number Diff line
@@ -105,12 +105,20 @@ static void calibrate_dc_servo(struct snd_soc_codec *codec) 
		return;

	}



	/* Devices not using a DCS code correction have startup mode */

	if (hubs->dcs_codes) {

		/* Set for 32 series updates */

		snd_soc_update_bits(codec, WM8993_DC_SERVO_1,

				    WM8993_DCS_SERIES_NO_01_MASK,

				    32 << WM8993_DCS_SERIES_NO_01_SHIFT);

		wait_for_dc_servo(codec,

			  WM8993_DCS_TRIG_SERIES_0 | WM8993_DCS_TRIG_SERIES_1);

				  WM8993_DCS_TRIG_SERIES_0 |

				  WM8993_DCS_TRIG_SERIES_1);

	} else {

		wait_for_dc_servo(codec,

				  WM8993_DCS_TRIG_STARTUP_0 |

				  WM8993_DCS_TRIG_STARTUP_1);

	}



	/* Different chips in the family support different readback

	 * methods.