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Message-Id: <20160908195759.18485-1-dannym@scratchpost.org>
Date: Thu, 8 Sep 2016 21:57:59 +0200
From: Danny Milosavljevic <dannym@...atchpost.org>
To: Maxime Ripard <maxime.ripard@...e-electrons.com>,
Mark Brown <broonie@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
alsa-devel@...a-project.org, Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>,
Liam Girdwood <lgirdwood@...il.com>,
linux-sunxi@...glegroups.com
Cc: Danny Milosavljevic <dannym@...atchpost.org>
Subject: [PATCH v2] ASoC: sun4i-codec: Distinguish sun4i from sun7i
Introduce mechanism to detect sun7i and provide a different regmap
and different controls for it - different compared to sun4i Allwinner A10.
The controls will be extended in a forthcoming patch - it is necessary to
distinguish between sun4i and sun7i controls because the mic gains are in
different registers.
Renamed SUN4I_CODEC_AC_SYS_VERI to SUN7I_CODEC_AC_DAC_CAL and renamed
SUN4I_CODEC_AC_MIC_PHONE_CAL to SUN7I_CODEC_AC_MIC_PHONE_CAL because these
are actually not present on Allwinner A10.
Handle quirks by regmap config and codec and select the correct quirks
automatically.
Signed-off-by: Danny Milosavljevic <dannym@...atchpost.org>
---
sound/soc/sunxi/sun4i-codec.c | 78 ++++++++++++++++++++++++++++++++-----------
1 file changed, 58 insertions(+), 20 deletions(-)
diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 0e19c50..239e330 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -96,8 +96,8 @@
/* 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;
@@ -509,7 +509,7 @@ 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[] = {
+static const struct snd_kcontrol_new sun4i_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),
@@ -627,10 +627,60 @@ static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
{ "Mic1", NULL, "VMIC" },
};
+static const struct regmap_config sun4i_codec_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = SUN4I_CODEC_ADC_RXCNT,
+};
+
+static const struct regmap_config sun7i_codec_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = SUN7I_CODEC_AC_MIC_PHONE_CAL,
+};
+
+struct sun4i_quirks {
+ const struct snd_kcontrol_new *controls;
+ unsigned int num_controls;
+ const struct regmap_config *regmap_config;
+};
+
+static const struct sun4i_quirks sun4i_quirks = {
+ .controls = NULL,
+ .num_controls = 0U,
+ .regmap_config = &sun4i_codec_regmap_config,
+};
+
+static const struct sun4i_quirks sun7i_quirks = {
+ .controls = NULL,
+ .num_controls = 0U,
+ .regmap_config = &sun7i_codec_regmap_config,
+};
+
+static const struct of_device_id sun4i_codec_of_match[] = {
+ { .compatible = "allwinner,sun4i-a10-codec", .data = &sun4i_quirks },
+ { .compatible = "allwinner,sun7i-a20-codec", .data = &sun7i_quirks },
+ {}
+};
+MODULE_DEVICE_TABLE(of, sun4i_codec_of_match);
+
+static int sun4i_codec_codec_probe(struct snd_soc_codec *scodec)
+{
+ const struct sun4i_quirks *quirks;
+
+ quirks = of_device_get_match_data(scodec->dev);
+ return snd_soc_add_codec_controls(scodec,
+ quirks->controls,
+ quirks->num_controls);
+}
+
static struct snd_soc_codec_driver sun4i_codec_codec = {
+ .probe = sun4i_codec_codec_probe,
.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,
@@ -678,20 +728,6 @@ static struct snd_soc_dai_driver dummy_cpu_dai = {
},
};
-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,
-};
-
-static const struct of_device_id sun4i_codec_of_match[] = {
- { .compatible = "allwinner,sun4i-a10-codec" },
- { .compatible = "allwinner,sun7i-a20-codec" },
- {}
-};
-MODULE_DEVICE_TABLE(of, sun4i_codec_of_match);
-
static struct snd_soc_dai_link *sun4i_codec_create_link(struct device *dev,
int *num_links)
{
@@ -760,6 +796,7 @@ static int sun4i_codec_probe(struct platform_device *pdev)
{
struct snd_soc_card *card;
struct sun4i_codec *scodec;
+ const struct sun4i_quirks *quirks;
struct resource *res;
void __iomem *base;
int ret;
@@ -777,8 +814,9 @@ static int sun4i_codec_probe(struct platform_device *pdev)
return PTR_ERR(base);
}
+ quirks = of_device_get_match_data(&pdev->dev);
scodec->regmap = devm_regmap_init_mmio(&pdev->dev, base,
- &sun4i_codec_regmap_config);
+ quirks->regmap_config);
if (IS_ERR(scodec->regmap)) {
dev_err(&pdev->dev, "Failed to create our regmap\n");
return PTR_ERR(scodec->regmap);
--
2.1.4
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