mfd: madera: Add Madera core support for CS47L92

This patch adds all the core support and defines for the Cirrus
Logic CS42L92, CS47L92 and CS47L93 smart audio CODECs.

Registers or fields are named MADERA_* if it is part of the
common hardware platform and does not conflict with any other
Madera codecs. It is named CS47L15_* if it is unique to CS47L15
and conflicts with definitions on other codecs.

Signed-off-by: Stuart Henderson <stuarth@opensource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/drivers/mfd/madera-core.c b/drivers/mfd/madera-core.c
index a354567ebc86..b9e9c169c6cc 100644
--- a/drivers/mfd/madera-core.c
+++ b/drivers/mfd/madera-core.c
@@ -35,6 +35,7 @@
 #define CS47L35_SILICON_ID	0x6360
 #define CS47L85_SILICON_ID	0x6338
 #define CS47L90_SILICON_ID	0x6364
+#define CS47L92_SILICON_ID	0x6371
 
 #define MADERA_32KZ_MCLK2	1
 
@@ -148,6 +149,29 @@ static const struct mfd_cell cs47l90_devs[] = {
 	},
 };
 
+static const char * const cs47l92_supplies[] = {
+	"MICVDD",
+	"CPVDD1",
+	"CPVDD2",
+};
+
+static const struct mfd_cell cs47l92_devs[] = {
+	{ .name = "madera-pinctrl" },
+	{ .name = "madera-irq", },
+	{ .name = "madera-micsupp", },
+	{ .name = "madera-gpio" },
+	{
+		.name = "madera-extcon",
+		.parent_supplies = cs47l92_supplies,
+		.num_parent_supplies = 1, /* We only need MICVDD */
+	},
+	{
+		.name = "cs47l92-codec",
+		.parent_supplies = cs47l92_supplies,
+		.num_parent_supplies = ARRAY_SIZE(cs47l92_supplies),
+	},
+};
+
 /* Used by madera-i2c and madera-spi drivers */
 const char *madera_name_from_type(enum madera_type type)
 {
@@ -162,6 +186,12 @@ const char *madera_name_from_type(enum madera_type type)
 		return "CS47L90";
 	case CS47L91:
 		return "CS47L91";
+	case CS42L92:
+		return "CS42L92";
+	case CS47L92:
+		return "CS47L92";
+	case CS47L93:
+		return "CS47L93";
 	case WM1840:
 		return "WM1840";
 	default:
@@ -321,6 +351,9 @@ const struct of_device_id madera_of_match[] = {
 	{ .compatible = "cirrus,cs47l85", .data = (void *)CS47L85 },
 	{ .compatible = "cirrus,cs47l90", .data = (void *)CS47L90 },
 	{ .compatible = "cirrus,cs47l91", .data = (void *)CS47L91 },
+	{ .compatible = "cirrus,cs42l92", .data = (void *)CS42L92 },
+	{ .compatible = "cirrus,cs47l92", .data = (void *)CS47L92 },
+	{ .compatible = "cirrus,cs47l93", .data = (void *)CS47L93 },
 	{ .compatible = "cirrus,wm1840", .data = (void *)WM1840 },
 	{}
 };
@@ -385,6 +418,13 @@ static void madera_set_micbias_info(struct madera *madera)
 		madera->num_childbias[0] = 4;
 		madera->num_childbias[1] = 4;
 		return;
+	case CS42L92:
+	case CS47L92:
+	case CS47L93:
+		madera->num_micbias = 2;
+		madera->num_childbias[0] = 4;
+		madera->num_childbias[1] = 2;
+		return;
 	default:
 		return;
 	}
@@ -436,6 +476,9 @@ int madera_dev_init(struct madera *madera)
 	case CS47L35:
 	case CS47L90:
 	case CS47L91:
+	case CS42L92:
+	case CS47L92:
+	case CS47L93:
 		break;
 	case CS47L85:
 	case WM1840:
@@ -556,6 +599,21 @@ int madera_dev_init(struct madera *madera)
 			}
 		}
 		break;
+	case CS47L92_SILICON_ID:
+		if (IS_ENABLED(CONFIG_MFD_CS47L92)) {
+			switch (madera->type) {
+			case CS42L92:
+			case CS47L92:
+			case CS47L93:
+				patch_fn = cs47l92_patch;
+				mfd_devs = cs47l92_devs;
+				n_devs = ARRAY_SIZE(cs47l92_devs);
+				break;
+			default:
+				break;
+			}
+		}
+		break;
 	default:
 		dev_err(madera->dev, "Unknown device ID: %x\n", hwid);
 		ret = -EINVAL;