mfd: arizona: Add support for WM8998 and WM1814

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/Kconfig

@@ -1379,6 +1379,12 @@ config MFD_WM8997
 	help
 	  Support for Wolfson Microelectronics WM8997 low power audio SoC
 
+config MFD_WM8998
+	bool "Wolfson Microelectronics WM8998"
+	depends on MFD_ARIZONA
+	help
+	  Support for Wolfson Microelectronics WM8998 low power audio SoC
+
 config MFD_WM8400
 	bool "Wolfson Microelectronics WM8400"
 	select MFD_CORE

drivers/mfd/Makefile

@@ -48,6 +48,9 @@ endif
 ifeq ($(CONFIG_MFD_WM8997),y)
 obj-$(CONFIG_MFD_ARIZONA)	+= wm8997-tables.o
 endif
+ifeq ($(CONFIG_MFD_WM8998),y)
+obj-$(CONFIG_MFD_ARIZONA)	+= wm8998-tables.o
+endif
 obj-$(CONFIG_MFD_WM8400)	+= wm8400-core.o
 wm831x-objs			:= wm831x-core.o wm831x-irq.o wm831x-otp.o
 wm831x-objs			+= wm831x-auxadc.o

drivers/mfd/arizona-core.c

@@ -146,17 +146,31 @@ static irqreturn_t arizona_underclocked(int irq, void *data)
 static irqreturn_t arizona_overclocked(int irq, void *data)
 {
 	struct arizona *arizona = data;
-	unsigned int val[2];
+	unsigned int val[3];
 	int ret;
 	
 	ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
-			       &val[0], 2);
+			       &val[0], 3);
 	if (ret != 0) {
 		dev_err(arizona->dev, "Failed to read overclock status: %d\n",
 			ret);
 		return IRQ_NONE;
 	}
 
+	switch (arizona->type) {
+	case WM8998:
+	case WM1814:
+		/* Some bits are shifted on WM8998,
+		 * rearrange to match the standard bit layout
+		 */
+		val[0] = ((val[0] & 0x60e0) >> 1) |
+			 ((val[0] & 0x1e00) >> 2) |
+			 (val[0] & 0x000f);
+		break;
+	default:
+		break;
+	}
+
 	if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
 		dev_err(arizona->dev, "PWM overclocked\n");
 	if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
@@ -201,6 +215,9 @@ static irqreturn_t arizona_overclocked(int irq, void *data)
 	if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
 		dev_err(arizona->dev, "ISRC1 overclocked\n");
 
+	if (val[2] & ARIZONA_SPDIF_OVERCLOCKED_STS)
+		dev_err(arizona->dev, "SPDIF overclocked\n");
+
 	return IRQ_HANDLED;
 }
 
@@ -806,6 +823,8 @@ const struct of_device_id arizona_of_match[] = {
 	{ .compatible = "wlf,wm5110", .data = (void *)WM5110 },
 	{ .compatible = "wlf,wm8280", .data = (void *)WM8280 },
 	{ .compatible = "wlf,wm8997", .data = (void *)WM8997 },
+	{ .compatible = "wlf,wm8998", .data = (void *)WM8998 },
+	{ .compatible = "wlf,wm1814", .data = (void *)WM1814 },
 	{},
 };
 EXPORT_SYMBOL_GPL(arizona_of_match);
@@ -887,11 +906,28 @@ static const struct mfd_cell wm8997_devs[] = {
 	},
 };
 
+static const struct mfd_cell wm8998_devs[] = {
+	{
+		.name = "arizona-extcon",
+		.parent_supplies = wm5102_supplies,
+		.num_parent_supplies = 1, /* We only need MICVDD */
+	},
+	{ .name = "arizona-gpio" },
+	{ .name = "arizona-haptics" },
+	{ .name = "arizona-pwm" },
+	{
+		.name = "wm8998-codec",
+		.parent_supplies = wm5102_supplies,
+		.num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
+	},
+	{ .name = "arizona-micsupp" },
+};
+
 int arizona_dev_init(struct arizona *arizona)
 {
 	struct device *dev = arizona->dev;
 	const char *type_name;
-	unsigned int reg, val;
+	unsigned int reg, val, mask;
 	int (*apply_patch)(struct arizona *) = NULL;
 	int ret, i;
 
@@ -911,6 +947,8 @@ int arizona_dev_init(struct arizona *arizona)
 	case WM5110:
 	case WM8280:
 	case WM8997:
+	case WM8998:
+	case WM1814:
 		for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
 			arizona->core_supplies[i].supply
 				= wm5102_core_supplies[i];
@@ -992,6 +1030,7 @@ int arizona_dev_init(struct arizona *arizona)
 	switch (reg) {
 	case 0x5102:
 	case 0x5110:
+	case 0x6349:
 	case 0x8997:
 		break;
 	default:
@@ -1092,6 +1131,27 @@ int arizona_dev_init(struct arizona *arizona)
 		}
 		apply_patch = wm8997_patch;
 		break;
+#endif
+#ifdef CONFIG_MFD_WM8998
+	case 0x6349:
+		switch (arizona->type) {
+		case WM8998:
+			type_name = "WM8998";
+			break;
+
+		case WM1814:
+			type_name = "WM1814";
+			break;
+
+		default:
+			type_name = "WM8998";
+			dev_err(arizona->dev, "WM8998 registered as %d\n",
+				arizona->type);
+			arizona->type = WM8998;
+		}
+
+		apply_patch = wm8998_patch;
+		break;
 #endif
 	default:
 		dev_err(arizona->dev, "Unknown device ID %x\n", reg);
@@ -1208,14 +1268,38 @@ int arizona_dev_init(struct arizona *arizona)
 			<< ARIZONA_IN1_DMIC_SUP_SHIFT;
 		if (arizona->pdata.inmode[i] & ARIZONA_INMODE_DMIC)
 			val |= 1 << ARIZONA_IN1_MODE_SHIFT;
+
+		switch (arizona->type) {
+		case WM8998:
+		case WM1814:
+			regmap_update_bits(arizona->regmap,
+				ARIZONA_ADC_DIGITAL_VOLUME_1L + (i * 8),
+				ARIZONA_IN1L_SRC_SE_MASK,
+				(arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
+					<< ARIZONA_IN1L_SRC_SE_SHIFT);
+
+			regmap_update_bits(arizona->regmap,
+				ARIZONA_ADC_DIGITAL_VOLUME_1R + (i * 8),
+				ARIZONA_IN1R_SRC_SE_MASK,
+				(arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
+					<< ARIZONA_IN1R_SRC_SE_SHIFT);
+
+			mask = ARIZONA_IN1_DMIC_SUP_MASK |
+				ARIZONA_IN1_MODE_MASK;
+			break;
+		default:
 			if (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
 				val |= 1 << ARIZONA_IN1_SINGLE_ENDED_SHIFT;
 
+			mask = ARIZONA_IN1_DMIC_SUP_MASK |
+				ARIZONA_IN1_MODE_MASK |
+				ARIZONA_IN1_SINGLE_ENDED_MASK;
+			break;
+		}
+
 		regmap_update_bits(arizona->regmap,
 				   ARIZONA_IN1L_CONTROL + (i * 8),
-				   ARIZONA_IN1_DMIC_SUP_MASK |
-				   ARIZONA_IN1_MODE_MASK |
-				   ARIZONA_IN1_SINGLE_ENDED_MASK, val);
+				   mask, val);
 	}
 
 	for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
@@ -1271,6 +1355,11 @@ int arizona_dev_init(struct arizona *arizona)
 		ret = mfd_add_devices(arizona->dev, -1, wm8997_devs,
 				      ARRAY_SIZE(wm8997_devs), NULL, 0, NULL);
 		break;
+	case WM8998:
+	case WM1814:
+		ret = mfd_add_devices(arizona->dev, -1, wm8998_devs,
+				      ARRAY_SIZE(wm8998_devs), NULL, 0, NULL);
+		break;
 	}
 
 	if (ret != 0) {

drivers/mfd/arizona-i2c.c

@@ -52,6 +52,12 @@ static int arizona_i2c_probe(struct i2c_client *i2c,
 	case WM8997:
 		regmap_config = &wm8997_i2c_regmap;
 		break;
+#endif
+#ifdef CONFIG_MFD_WM8998
+	case WM8998:
+	case WM1814:
+		regmap_config = &wm8998_i2c_regmap;
+		break;
 #endif
 	default:
 		dev_err(&i2c->dev, "Unknown device type %ld\n",
@@ -90,6 +96,8 @@ static const struct i2c_device_id arizona_i2c_id[] = {
 	{ "wm5110", WM5110 },
 	{ "wm8280", WM8280 },
 	{ "wm8997", WM8997 },
+	{ "wm8998", WM8998 },
+	{ "wm1814", WM1814 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, arizona_i2c_id);

drivers/mfd/arizona-irq.c

@@ -234,6 +234,15 @@ int arizona_irq_init(struct arizona *arizona)
 		arizona->ctrlif_error = false;
 		break;
 #endif
+#ifdef CONFIG_MFD_WM8998
+	case WM8998:
+	case WM1814:
+		aod = &wm8998_aod;
+		irq = &wm8998_irq;
+
+		arizona->ctrlif_error = false;
+		break;
+#endif
 	default:
 		BUG_ON("Unknown Arizona class device" == NULL);
 		return -EINVAL;

drivers/mfd/arizona.h

@@ -27,6 +27,8 @@ extern const struct regmap_config wm5110_spi_regmap;
 
 extern const struct regmap_config wm8997_i2c_regmap;
 
+extern const struct regmap_config wm8998_i2c_regmap;
+
 extern const struct dev_pm_ops arizona_pm_ops;
 
 extern const struct of_device_id arizona_of_match[];
@@ -41,6 +43,9 @@ extern const struct regmap_irq_chip wm5110_revd_irq;
 extern const struct regmap_irq_chip wm8997_aod;
 extern const struct regmap_irq_chip wm8997_irq;
 
+extern struct regmap_irq_chip wm8998_aod;
+extern struct regmap_irq_chip wm8998_irq;
+
 int arizona_dev_init(struct arizona *arizona);
 int arizona_dev_exit(struct arizona *arizona);
 int arizona_irq_init(struct arizona *arizona);

include/linux/mfd/arizona/core.h

@@ -25,6 +25,8 @@ enum arizona_type {
 	WM5110 = 2,
 	WM8997 = 3,
 	WM8280 = 4,
+	WM8998 = 5,
+	WM1814 = 6,
 };
 
 #define ARIZONA_IRQ_GP1                    0
@@ -165,6 +167,7 @@ static inline int wm5102_patch(struct arizona *arizona)
 
 int wm5110_patch(struct arizona *arizona);
 int wm8997_patch(struct arizona *arizona);
+int wm8998_patch(struct arizona *arizona);
 
 extern int arizona_of_get_named_gpio(struct arizona *arizona, const char *prop,
 				     bool mandatory);

include/linux/mfd/arizona/pdata.h

@@ -162,6 +162,8 @@ struct arizona_pdata {
 	/**
 	 * Mode of input structures
 	 * One of the ARIZONA_INMODE_xxx values
+	 * wm5102/wm5110/wm8280/wm8997: [0]=IN1 [1]=IN2 [2]=IN3 [3]=IN4
+	 * wm8998: [0]=IN1A [1]=IN2A [2]=IN1B [3]=IN2B
 	 */
 	int inmode[ARIZONA_MAX_INPUT];