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Commit 45ba82d8 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Tune the accessory detection rates for WM8996 



Use longer intervals when the microphone is not inserted to increase
robustness against leisurely insertion.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent a3462490

sound/soc/codecs/wm8996.c

+12 −6
Original line number Diff line number Diff line
@@ -2572,8 +2572,10 @@ static void wm8996_micd(struct snd_soc_codec *codec) 
				    SND_JACK_BTN_0);



		snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,

				    WM8996_MICD_RATE_MASK,

				    WM8996_MICD_RATE_MASK);

				    WM8996_MICD_RATE_MASK |

				    WM8996_MICD_BIAS_STARTTIME_MASK,

				    WM8996_MICD_RATE_MASK |

				    9 << WM8996_MICD_BIAS_STARTTIME_SHIFT);

		return;

	}
@@ -2590,8 +2592,10 @@ static void wm8996_micd(struct snd_soc_codec *codec) 
			/* Increase poll rate to give better responsiveness

			 * for buttons */

			snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,

					    WM8996_MICD_RATE_MASK,

					    5 << WM8996_MICD_RATE_SHIFT);

					    WM8996_MICD_RATE_MASK |

					    WM8996_MICD_BIAS_STARTTIME_MASK,

					    5 << WM8996_MICD_RATE_SHIFT |

					    7 << WM8996_MICD_BIAS_STARTTIME_SHIFT);

		} else {

			dev_dbg(codec->dev, "Mic button up\n");

			snd_soc_jack_report(wm8996->jack, 0, SND_JACK_BTN_0);
@@ -2639,8 +2643,10 @@ static void wm8996_micd(struct snd_soc_codec *codec) 
			 * responsiveness.

			 */

			snd_soc_update_bits(codec, WM8996_MIC_DETECT_1,

					    WM8996_MICD_RATE_MASK,

					    7 << WM8996_MICD_RATE_SHIFT);

					    WM8996_MICD_RATE_MASK |

					    WM8996_MICD_BIAS_STARTTIME_MASK,

					    7 << WM8996_MICD_RATE_SHIFT |

					    7 << WM8996_MICD_BIAS_STARTTIME_SHIFT);

		}

	}

}