[alsa-devel] [PATCH v2] ASoC: rt5645: Add codec driver
oder_chiou at realtek.com
Mon May 5 13:15:24 CEST 2014
> > + /* I2S2 function select */
> > + SOC_SINGLE("I2S2 Func Switch", RT5645_GPIO_CTRL1, RT5645_I2S2_SEL_SFT,
> > + 1, 1),
> What functions is this switching?
It is the pin share switch. The I2S data pins are the pin share to GPIO3/4/5/6.
If we want to use the GPIO3/4/5/6, we need to set it. We will modify it using the
platform data to set it.
> > + /* TDM */
> > + SOC_ENUM("TDM Adc Slot0 1 Data", rt5645_tdm_adc_slot0_1_enum),
> > + SOC_ENUM("TDM Adc Slot2 3 Data", rt5645_tdm_adc_slot2_3_enum),
> > + SOC_ENUM("TDM Adc Slot4 5 Data", rt5645_tdm_adc_slot4_5_enum),
> > + SOC_ENUM("TDM Adc Slot6 7 Data", rt5645_tdm_adc_slot6_7_enum),
> > + SOC_ENUM("TDM IF1 ADC DATA Sel", rt5645_tdm_adc_sel_enum),
> > + SOC_SINGLE("TDM IF1_DAC1_L Sel", RT5645_TDM_CTRL_3, 12, 7, 0),
> > + SOC_SINGLE("TDM IF1_DAC1_R Sel", RT5645_TDM_CTRL_3, 8, 7, 0),
> > + SOC_SINGLE("TDM IF1_DAC2_L Sel", RT5645_TDM_CTRL_3, 4, 7, 0),
> > + SOC_SINGLE("TDM IF1_DAC2_R Sel", RT5645_TDM_CTRL_3, 0, 7, 0),
> These look like they should be part of DAPM, they're about routing data as far as I
> can tell.
These are the data related controls with TDM function, not related the routing path.
For instance, it likes the L and R channel data swap, or copy function.
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