Hi Pierre
On Sat, Dec 17, 2022 at 12:03 AM Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com wrote:
On 12/16/22 09:49, Ajye Huang wrote:
This patch adds the driver data for two nau8318 speaker amplifiers on SSP1 and nau8825 on SSP0 for ADL platform.
So here you are making reference to two amplifiers...
+static struct snd_soc_dai_link_component nau8318_components[] = {
{.name = "NVTN2012:00",.dai_name = "nau8315-hifi",}+};
but here there's only one? I was expecting something like what we've used for Maxim amplifiers with a codec configuration and dailink components that list the two amplifiers.
static struct snd_soc_codec_conf max_98373_codec_conf[] = { { .dlc = COMP_CODEC_CONF(MAX_98373_DEV0_NAME), .name_prefix = "Right", }, { .dlc = COMP_CODEC_CONF(MAX_98373_DEV1_NAME), .name_prefix = "Left", }, };
struct snd_soc_dai_link_component max_98373_components[] = { { /* For Right */ .name = MAX_98373_DEV0_NAME, .dai_name = MAX_98373_CODEC_DAI, }, { /* For Left */ .name = MAX_98373_DEV1_NAME, .dai_name = MAX_98373_CODEC_DAI, }, };
Or is this a commit message problem and there's really only one amplifier?
Really , it has two speakers. The nau8318 is an auto mode Amplifier chip, similar to the max98360a amp chip. EX: Sof_maxim_common.c (sound\soc\intel\boards): static struct snd_soc_dai_link_component max_98360a_components[] = { { .name = MAX_98360A_DEV0_NAME, .dai_name = MAX_98357A_CODEC_DAI, } }; It is not an i2c interface, from the nau8318 data sheet, there are five pins used mainly. one for enable, others for I2S. EN-- enable pin FSR-- Frame Sync, Right FSL-- Frame Sync, Left BCLK-- bit clock DACIN-- Input i2s data
The FSR and FSL pins are for Left and Right channels used. thanks