On Tue, Aug 30, 2016 at 1:44 PM, Danny Milosavljevic
<dannym@xxxxxxxxxxxxxxx> wrote:
> This distinguishes sun4i from sun7i. It is necessary because they use
> different registers for the audio mixer.
> ---
> sound/soc/sunxi/sun4i-codec.c | 44 +++++++++++++++++++++++++++++++++----------
> 1 file changed, 34 insertions(+), 10 deletions(-)
>
> diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
> index 0e19c50..30f4ea2 100644
> --- a/sound/soc/sunxi/sun4i-codec.c
> +++ b/sound/soc/sunxi/sun4i-codec.c
> @@ -96,8 +96,9 @@
> /* Other various ADC registers */
> #define SUN4I_CODEC_DAC_TXCNT (0x30)
> #define SUN4I_CODEC_ADC_RXCNT (0x34)
> -#define SUN4I_CODEC_AC_SYS_VERI (0x38)
> -#define SUN4I_CODEC_AC_MIC_PHONE_CAL (0x3c)
> +
> +#define SUN7I_CODEC_AC_DAC_CAL (0x38)
> +#define SUN7I_CODEC_AC_MIC_PHONE_CAL (0x3c)
>
> struct sun4i_codec {
> struct device *dev;
> @@ -509,10 +510,17 @@ static const struct snd_kcontrol_new sun4i_codec_pa_mute =
>
> static DECLARE_TLV_DB_SCALE(sun4i_codec_pa_volume_scale, -6300, 100, 1);
>
> -static const struct snd_kcontrol_new sun4i_codec_widgets[] = {
> - SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,
> - SUN4I_CODEC_DAC_ACTL_PA_VOL, 0x3F, 0,
> - sun4i_codec_pa_volume_scale),
> +#define SUN4I_COMMON_CODEC_CONTROLS \
> + SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,\
> + SUN4I_CODEC_DAC_ACTL_PA_VOL, 0x3F, 0,\
> + sun4i_codec_pa_volume_scale)
This is slightly worrying. It will get messy as you add more widgets.
> +
> +static const struct snd_kcontrol_new sun4i_codec_controls[] = {
> + SUN4I_COMMON_CODEC_CONTROLS,
> +};
> +
> +static const struct snd_kcontrol_new sun7i_codec_controls[] = {
> + SUN4I_COMMON_CODEC_CONTROLS,
> };
>
> static const struct snd_kcontrol_new sun4i_codec_left_mixer_controls[] = {
> @@ -629,8 +637,18 @@ static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
>
> static struct snd_soc_codec_driver sun4i_codec_codec = {
> .component_driver = {
> - .controls = sun4i_codec_widgets,
> - .num_controls = ARRAY_SIZE(sun4i_codec_widgets),
> + .controls = sun4i_codec_controls,
> + .num_controls = ARRAY_SIZE(sun4i_codec_controls),
> + .dapm_widgets = sun4i_codec_codec_dapm_widgets,
> + .num_dapm_widgets = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets),
> + .dapm_routes = sun4i_codec_codec_dapm_routes,
> + .num_dapm_routes = ARRAY_SIZE(sun4i_codec_codec_dapm_routes),
> + },
> +};
> +static struct snd_soc_codec_driver sun7i_codec_codec = {
> + .component_driver = {
> + .controls = sun7i_codec_controls,
> + .num_controls = ARRAY_SIZE(sun7i_codec_controls),
> .dapm_widgets = sun4i_codec_codec_dapm_widgets,
> .num_dapm_widgets = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets),
> .dapm_routes = sun4i_codec_codec_dapm_routes,
> @@ -682,7 +700,7 @@ static const struct regmap_config sun4i_codec_regmap_config = {
> .reg_bits = 32,
> .reg_stride = 4,
> .val_bits = 32,
> - .max_register = SUN4I_CODEC_AC_MIC_PHONE_CAL,
> + .max_register = SUN7I_CODEC_AC_MIC_PHONE_CAL,
> };
On sun4i the registers only go as far as SUN4I_CODEC_ADC_RXCNT.
Could you add a separate regmap_config as well?
>
> static const struct of_device_id sun4i_codec_of_match[] = {
> @@ -760,6 +778,7 @@ static int sun4i_codec_probe(struct platform_device *pdev)
> {
> struct snd_soc_card *card;
> struct sun4i_codec *scodec;
> + struct snd_soc_codec_driver *codec;
> struct resource *res;
> void __iomem *base;
> int ret;
> @@ -822,7 +841,12 @@ static int sun4i_codec_probe(struct platform_device *pdev)
> scodec->capture_dma_data.maxburst = 4;
> scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
>
> - ret = snd_soc_register_codec(&pdev->dev, &sun4i_codec_codec,
> + if (of_device_is_compatible(pdev->dev.of_node,
> + "allwinner,sun7i-a20-codec"))
> + codec = &sun7i_codec_codec;
> + else
> + codec = &sun4i_codec_codec;
> + ret = snd_soc_register_codec(&pdev->dev, codec,
This will get reworked into something like in
https://github.com/wens/linux/commit/54a58e3087fb67572ca416256bc000e08b163480
I haven't gotten around to posting this series yet though.
ChenYu
> &sun4i_codec_dai, 1);
> if (ret) {
> dev_err(&pdev->dev, "Failed to register our codec\n");
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