@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/platform_data/x86/soc.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>
@@ -37,6 +38,21 @@ struct byt_wm5102_private {
struct gpio_desc *spkvdd_en_gpio;
};
+/* Bits 0-15 are reserved for things like an input-map */
+#define BYT_WM5102_SSP2 BIT(16)
+
+static unsigned long quirk;
+
+static int quirk_override = -1;
+module_param_named(quirk, quirk_override, int, 0444);
+MODULE_PARM_DESC(quirk, "Board-specific quirk override");
+
+static void log_quirks(struct device *dev)
+{
+ if (quirk & BYT_WM5102_SSP2)
+ dev_info_once(dev, "quirk SSP2 enabled");
+}
+
static int byt_wm5102_spkvdd_power_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
@@ -166,14 +182,24 @@ static const struct snd_soc_dapm_route byt_wm5102_audio_map[] = {
{"Headset Mic", NULL, "MICBIAS1"},
{"Headset Mic", NULL, "MICBIAS2"},
{"IN1L", NULL, "Headset Mic"},
+};
+static const struct snd_soc_dapm_route bytcr_wm5102_ssp0_map[] = {
{"AIF1 Playback", NULL, "ssp0 Tx"},
{"ssp0 Tx", NULL, "modem_out"},
-
{"modem_in", NULL, "ssp0 Rx"},
{"ssp0 Rx", NULL, "AIF1 Capture"},
};
+static const struct snd_soc_dapm_route bytcr_wm5102_ssp2_map[] = {
+ {"AIF1 Playback", NULL, "ssp2 Tx"},
+ {"ssp2 Tx", NULL, "codec_out0"},
+ {"ssp2 Tx", NULL, "codec_out1"},
+ {"codec_in0", NULL, "ssp2 Rx"},
+ {"codec_in1", NULL, "ssp2 Rx"},
+ {"ssp2 Rx", NULL, "AIF1 Capture"},
+};
+
static const struct snd_kcontrol_new byt_wm5102_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
@@ -202,7 +228,8 @@ static int byt_wm5102_init(struct snd_soc_pcm_runtime *runtime)
struct snd_soc_card *card = runtime->card;
struct byt_wm5102_private *priv = snd_soc_card_get_drvdata(card);
struct snd_soc_component *component = snd_soc_rtd_to_codec(runtime, 0)->component;
- int ret, jack_type;
+ const struct snd_soc_dapm_route *custom_map = NULL;
+ int ret, jack_type, num_routes = 0;
card->dapm.idle_bias_off = true;
@@ -213,6 +240,17 @@ static int byt_wm5102_init(struct snd_soc_pcm_runtime *runtime)
return ret;
}
+ if (quirk & BYT_WM5102_SSP2) {
+ custom_map = bytcr_wm5102_ssp2_map;
+ num_routes = ARRAY_SIZE(bytcr_wm5102_ssp2_map);
+ } else {
+ custom_map = bytcr_wm5102_ssp0_map;
+ num_routes = ARRAY_SIZE(bytcr_wm5102_ssp0_map);
+ }
+ ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
+ if (ret)
+ return ret;
+
/*
* The firmware might enable the clock at boot (this information
* may or may not be reflected in the enable clock register).
@@ -253,7 +291,7 @@ static int byt_wm5102_codec_fixup(struct snd_soc_pcm_runtime *rtd,
SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
- int ret;
+ int ret, bits;
/* The DSP will convert the FE rate to 48k, stereo */
rate->min = 48000;
@@ -261,8 +299,15 @@ static int byt_wm5102_codec_fixup(struct snd_soc_pcm_runtime *rtd,
channels->min = 2;
channels->max = 2;
- /* set SSP0 to 16-bit */
- params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
+ if (quirk & BYT_WM5102_SSP2) {
+ /* set SSP2 to 24-bit */
+ params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
+ bits = 24;
+ } else {
+ /* set SSP0 to 16-bit */
+ params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
+ bits = 16;
+ }
/*
* Default mode for SSP configuration is TDM 4 slot, override config
@@ -278,7 +323,7 @@ static int byt_wm5102_codec_fixup(struct snd_soc_pcm_runtime *rtd,
return ret;
}
- ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 16);
+ ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, bits);
if (ret) {
dev_err(rtd->dev, "Error setting I2S config: %d\n", ret);
return ret;
@@ -345,12 +390,9 @@ static struct snd_soc_dai_link byt_wm5102_dais[] = {
/* back ends */
{
/*
- * This must be named SSP2-Codec even though this machine driver
- * always uses SSP0. Most machine drivers support both and dynamically
- * update the dailink to point to SSP0 or SSP2, while keeping the name
- * as "SSP2-Codec". The SOF tplg files hardcode the "SSP2-Codec" even
- * in the byt-foo-ssp0.tplg versions because the other machine-drivers
- * use "SSP2-Codec" even when SSP0 is used.
+ * This dailink is updated dynamically to point to SSP0 or SSP2.
+ * Yet its name is always kept as "SSP2-Codec" because the SOF
+ * tplg files hardcode "SSP2-Codec" even in byt-foo-ssp0.tplg.
*/
.name = "SSP2-Codec",
.id = 0,
@@ -393,8 +435,9 @@ static int snd_byt_wm5102_mc_probe(struct platform_device *pdev)
const char *platform_name;
struct acpi_device *adev;
struct device *codec_dev;
+ int dai_index = 0;
bool sof_parent;
- int ret;
+ int i, ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -441,6 +484,26 @@ static int snd_byt_wm5102_mc_probe(struct platform_device *pdev)
return dev_err_probe(dev, ret, "getting spkvdd-GPIO\n");
}
+ if (soc_intel_is_cht()) {
+ /* On CHT default to SSP2 */
+ quirk = BYT_WM5102_SSP2;
+ }
+ if (quirk_override != -1) {
+ dev_info_once(dev, "Overriding quirk 0x%lx => 0x%x\n",
+ quirk, quirk_override);
+ quirk = quirk_override;
+ }
+ log_quirks(dev);
+
+ /* find index of codec dai */
+ for (i = 0; i < ARRAY_SIZE(byt_wm5102_dais); i++) {
+ if (!strcmp(byt_wm5102_dais[i].codecs->name,
+ "wm5102-codec")) {
+ dai_index = i;
+ break;
+ }
+ }
+
/* override platform name, if required */
byt_wm5102_card.dev = dev;
platform_name = mach->mach_params.platform;
@@ -448,6 +511,10 @@ static int snd_byt_wm5102_mc_probe(struct platform_device *pdev)
if (ret)
goto out_put_gpio;
+ /* override SSP port, if required */
+ if (quirk & BYT_WM5102_SSP2)
+ byt_wm5102_dais[dai_index].cpus->dai_name = "ssp2-port";
+
/* set card and driver name and pm-ops */
sof_parent = snd_soc_acpi_sof_parent(dev);
if (sof_parent) {