Hi Shenghao, On Sun, Mar 26, 2023 at 10:34:19PM +0800, Shenghao Ding wrote: > +config SND_SOC_TAS2781 > + tristate "Texas Instruments TAS2781 speaker amplifier" > + depends on I2C > + select REGMAP_I2C > + select CRC8 > + help > + Enable support for Texas Instruments TAS2781 Smart Amplifier > + Digital input mono Class-D and DSP-inside audio power amplifiers. > + Note the TAS2781 driver implements a flexible and configurable > + algo coff setting, for one, two, even multiple TAS2781 chips. You changed coff->coefficient below as suggested by Pierre-Louis Bossart but you forgot to change it here, and this will surely perplex people when configuring the kernel. > + > config SND_SOC_TAS5086 > tristate "Texas Instruments TAS5086 speaker amplifier" > depends on I2C > diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile > index f1ca18f7946c..5559b9e9cc17 100644 > --- a/sound/soc/codecs/Makefile > +++ b/sound/soc/codecs/Makefile > @@ -262,6 +262,7 @@ snd-soc-tas5805m-objs := tas5805m.o > snd-soc-tas6424-objs := tas6424.o > snd-soc-tda7419-objs := tda7419.o > snd-soc-tas2770-objs := tas2770.o > +snd-soc-tas2781-objs := tas2781-i2c.o tas2781-dsp.o > snd-soc-tfa9879-objs := tfa9879.o > snd-soc-tfa989x-objs := tfa989x.o > snd-soc-tlv320adc3xxx-objs := tlv320adc3xxx.o > @@ -619,6 +620,7 @@ obj-$(CONFIG_SND_SOC_TAS2552) += snd-soc-tas2552.o > obj-$(CONFIG_SND_SOC_TAS2562) += snd-soc-tas2562.o > obj-$(CONFIG_SND_SOC_TAS2764) += snd-soc-tas2764.o > obj-$(CONFIG_SND_SOC_TAS2780) += snd-soc-tas2780.o > +obj-$(CONFIG_SND_SOC_TAS2781) += snd-soc-tas2781.o > obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o > obj-$(CONFIG_SND_SOC_TAS571X) += snd-soc-tas571x.o > obj-$(CONFIG_SND_SOC_TAS5720) += snd-soc-tas5720.o > diff --git a/sound/soc/codecs/tas2781-dsp.c b/sound/soc/codecs/tas2781-dsp.c > new file mode 100644 > index 000000000000..6a0e9fb5e20f > --- /dev/null > +++ b/sound/soc/codecs/tas2781-dsp.c > @@ -0,0 +1,2232 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// > +// ALSA SoC Texas Instruments TAS2781 Audio Smart Amplifier > +// > +// Copyright (C) 2022 - 2023 Texas Instruments Incorporated > +// https://www.ti.com > +// > +// The TAS2781 driver implements a flexible and configurable > +// algo coefficient setting for one, two, or even multiple > +// TAS2781 chips. Here it is OK. Thanks, Geraldo Nascimento
