xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ASoC: arizona: Implement stability check for LHPF coefficients

Browse Source 
Specifying unstable coefficients for the low/high pass filters can have
a severe impact on the audio. This patchs adds a stability check on the
coefficients written to the low/high pass filter block to prevent this.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax
2015-06-25 09:35:12 +01:00
committed by Mark Brown
parent c05d9a8c7f
commit 5f8e671a49
5 changed files with 38 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
sound/soc/codecs/wm5110.c
View File

@@ -310,10 +310,10 @@ ARIZONA_MIXER_CONTROLS("LHPF2", ARIZONA_HPLP2MIX_INPUT_1_SOURCE),
ARIZONA_MIXER_CONTROLS("LHPF3", ARIZONA_HPLP3MIX_INPUT_1_SOURCE),
ARIZONA_MIXER_CONTROLS("LHPF4", ARIZONA_HPLP4MIX_INPUT_1_SOURCE),
SND_SOC_BYTES("LHPF1 Coefficients", ARIZONA_HPLPF1_2, 1),
SND_SOC_BYTES("LHPF2 Coefficients", ARIZONA_HPLPF2_2, 1),
SND_SOC_BYTES("LHPF3 Coefficients", ARIZONA_HPLPF3_2, 1),
SND_SOC_BYTES("LHPF4 Coefficients", ARIZONA_HPLPF4_2, 1),
ARIZONA_LHPF_CONTROL("LHPF1 Coefficients", ARIZONA_HPLPF1_2),
ARIZONA_LHPF_CONTROL("LHPF2 Coefficients", ARIZONA_HPLPF2_2),
ARIZONA_LHPF_CONTROL("LHPF3 Coefficients", ARIZONA_HPLPF3_2),
ARIZONA_LHPF_CONTROL("LHPF4 Coefficients", ARIZONA_HPLPF4_2),
SOC_ENUM("LHPF1 Mode", arizona_lhpf1_mode),
SOC_ENUM("LHPF2 Mode", arizona_lhpf2_mode),