Merge branch 'ib-extcon-mfd-4.4' into extcon-next

drivers/extcon/extcon-arizona.c

@@ -43,11 +43,18 @@
 #define ARIZONA_MICD_CLAMP_MODE_JDL_GP5H 0x9
 #define ARIZONA_MICD_CLAMP_MODE_JDH_GP5H 0xb
 
+#define ARIZONA_TST_CAP_DEFAULT 0x3
+#define ARIZONA_TST_CAP_CLAMP   0x1
+
 #define ARIZONA_HPDET_MAX 10000
 
 #define HPDET_DEBOUNCE 500
 #define DEFAULT_MICD_TIMEOUT 2000
 
+#define QUICK_HEADPHONE_MAX_OHM 3
+#define MICROPHONE_MIN_OHM      1257
+#define MICROPHONE_MAX_OHM      30000
+
 #define MICD_DBTIME_TWO_READINGS 2
 #define MICD_DBTIME_FOUR_READINGS 4
 
@@ -117,12 +124,15 @@ static const struct arizona_micd_range micd_default_ranges[] = {
 	{ .max = 430, .key = BTN_5 },
 };
 
+/* The number of levels in arizona_micd_levels valid for button thresholds */
+#define ARIZONA_NUM_MICD_BUTTON_LEVELS 64
+
 static const int arizona_micd_levels[] = {
 	3, 6, 8, 11, 13, 16, 18, 21, 23, 26, 28, 31, 34, 36, 39, 41, 44, 46,
 	49, 52, 54, 57, 60, 62, 65, 67, 70, 73, 75, 78, 81, 83, 89, 94, 100,
 	105, 111, 116, 122, 127, 139, 150, 161, 173, 186, 196, 209, 220, 245,
 	270, 295, 321, 348, 375, 402, 430, 489, 550, 614, 681, 752, 903, 1071,
-	1257,
+	1257, 30000,
 };
 
 static const unsigned int arizona_cable[] = {
@@ -140,6 +150,7 @@ static void arizona_extcon_hp_clamp(struct arizona_extcon_info *info,
 {
 	struct arizona *arizona = info->arizona;
 	unsigned int mask = 0, val = 0;
+	unsigned int cap_sel = 0;
 	int ret;
 
 	switch (arizona->type) {
@@ -147,10 +158,21 @@ static void arizona_extcon_hp_clamp(struct arizona_extcon_info *info,
 	case WM8280:
 		mask = ARIZONA_HP1L_SHRTO | ARIZONA_HP1L_FLWR |
 		       ARIZONA_HP1L_SHRTI;
-		if (clamp)
+		if (clamp) {
 			val = ARIZONA_HP1L_SHRTO;
-		else
+			cap_sel = ARIZONA_TST_CAP_CLAMP;
+		} else {
 			val = ARIZONA_HP1L_FLWR | ARIZONA_HP1L_SHRTI;
+			cap_sel = ARIZONA_TST_CAP_DEFAULT;
+		}
+
+		ret = regmap_update_bits(arizona->regmap,
+					 ARIZONA_HP_TEST_CTRL_1,
+					 ARIZONA_HP1_TST_CAP_SEL_MASK,
+					 cap_sel);
+		if (ret != 0)
+			dev_warn(arizona->dev,
+				 "Failed to set TST_CAP_SEL: %d\n", ret);
 		break;
 	default:
 		mask = ARIZONA_RMV_SHRT_HP1L;
@@ -270,6 +292,7 @@ static void arizona_start_mic(struct arizona_extcon_info *info)
 	struct arizona *arizona = info->arizona;
 	bool change;
 	int ret;
+	unsigned int mode;
 
 	/* Microphone detection can't use idle mode */
 	pm_runtime_get(info->dev);
@@ -295,9 +318,14 @@ static void arizona_start_mic(struct arizona_extcon_info *info)
 		regmap_write(arizona->regmap, 0x80, 0x0);
 	}
 
+	if (info->detecting && arizona->pdata.micd_software_compare)
+		mode = ARIZONA_ACCDET_MODE_ADC;
+	else
+		mode = ARIZONA_ACCDET_MODE_MIC;
+
 	regmap_update_bits(arizona->regmap,
 			   ARIZONA_ACCESSORY_DETECT_MODE_1,
-			   ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
+			   ARIZONA_ACCDET_MODE_MASK, mode);
 
 	arizona_extcon_pulse_micbias(info);
 
@@ -804,6 +832,37 @@ static void arizona_micd_detect(struct work_struct *work)
 		return;
 	}
 
+	if (info->detecting && arizona->pdata.micd_software_compare) {
+		/* Must disable MICD before we read the ADCVAL */
+		regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
+				   ARIZONA_MICD_ENA, 0);
+		ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_4, &val);
+		if (ret != 0) {
+			dev_err(arizona->dev,
+				"Failed to read MICDET_ADCVAL: %d\n",
+				ret);
+			mutex_unlock(&info->lock);
+			return;
+		}
+
+		dev_dbg(arizona->dev, "MICDET_ADCVAL: %x\n", val);
+
+		val &= ARIZONA_MICDET_ADCVAL_MASK;
+		if (val < ARRAY_SIZE(arizona_micd_levels))
+			val = arizona_micd_levels[val];
+		else
+			val = INT_MAX;
+
+		if (val <= QUICK_HEADPHONE_MAX_OHM)
+			val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_0;
+		else if (val <= MICROPHONE_MIN_OHM)
+			val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_1;
+		else if (val <= MICROPHONE_MAX_OHM)
+			val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_8;
+		else
+			val = ARIZONA_MICD_LVL_8;
+	}
+
 	for (i = 0; i < 10 && !(val & MICD_LVL_0_TO_8); i++) {
 		ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val);
 		if (ret != 0) {
@@ -932,10 +991,17 @@ static void arizona_micd_detect(struct work_struct *work)
 	}
 
 handled:
-	if (info->detecting)
+	if (info->detecting) {
+		if (arizona->pdata.micd_software_compare)
+			regmap_update_bits(arizona->regmap,
+					   ARIZONA_MIC_DETECT_1,
+					   ARIZONA_MICD_ENA,
+					   ARIZONA_MICD_ENA);
+
 		queue_delayed_work(system_power_efficient_wq,
 				   &info->micd_timeout_work,
 				   msecs_to_jiffies(info->micd_timeout));
+	}
 
 	pm_runtime_mark_last_busy(info->dev);
 	mutex_unlock(&info->lock);
@@ -991,11 +1057,8 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 
 	mutex_lock(&info->lock);
 
-	if (arizona->pdata.jd_gpio5) {
+	if (info->micd_clamp) {
 		mask = ARIZONA_MICD_CLAMP_STS;
-		if (arizona->pdata.jd_invert)
-			present = ARIZONA_MICD_CLAMP_STS;
-		else
 		present = 0;
 	} else {
 		mask = ARIZONA_JD1_STS;
@@ -1055,9 +1118,11 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 					   msecs_to_jiffies(HPDET_DEBOUNCE));
 		}
 
+		if (info->micd_clamp || !arizona->pdata.jd_invert)
 			regmap_update_bits(arizona->regmap,
 					   ARIZONA_JACK_DETECT_DEBOUNCE,
-				   ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB, 0);
+					   ARIZONA_MICD_CLAMP_DB |
+					   ARIZONA_JD1_DB, 0);
 	} else {
 		dev_dbg(arizona->dev, "Detected jack removal\n");
 
@@ -1259,6 +1324,10 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 		info->micd_num_modes = ARRAY_SIZE(micd_default_modes);
 	}
 
+	if (arizona->pdata.gpsw > 0)
+		regmap_update_bits(arizona->regmap, ARIZONA_GP_SWITCH_1,
+				ARIZONA_SW1_MODE_MASK, arizona->pdata.gpsw);
+
 	if (arizona->pdata.micd_pol_gpio > 0) {
 		if (info->micd_modes[0].gpio)
 			mode = GPIOF_OUT_INIT_HIGH;
@@ -1335,7 +1404,8 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 		break;
 	}
 
-	BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) != 0x40);
+	BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) <
+		     ARIZONA_NUM_MICD_BUTTON_LEVELS);
 
 	if (arizona->pdata.num_micd_ranges) {
 		info->micd_ranges = pdata->micd_ranges;
@@ -1368,11 +1438,11 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 
 	/* Set up all the buttons the user specified */
 	for (i = 0; i < info->num_micd_ranges; i++) {
-		for (j = 0; j < ARRAY_SIZE(arizona_micd_levels); j++)
+		for (j = 0; j < ARIZONA_NUM_MICD_BUTTON_LEVELS; j++)
 			if (arizona_micd_levels[j] >= info->micd_ranges[i].max)
 				break;
 
-		if (j == ARRAY_SIZE(arizona_micd_levels)) {
+		if (j == ARIZONA_NUM_MICD_BUTTON_LEVELS) {
 			dev_err(arizona->dev, "Unsupported MICD level %d\n",
 				info->micd_ranges[i].max);
 			ret = -EINVAL;
@@ -1436,7 +1506,7 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 	pm_runtime_idle(&pdev->dev);
 	pm_runtime_get_sync(&pdev->dev);
 
-	if (arizona->pdata.jd_gpio5) {
+	if (info->micd_clamp) {
 		jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE;
 		jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL;
 	} else {
@@ -1541,7 +1611,7 @@ static int arizona_extcon_remove(struct platform_device *pdev)
 			   ARIZONA_MICD_CLAMP_CONTROL,
 			   ARIZONA_MICD_CLAMP_MODE_MASK, 0);
 
-	if (arizona->pdata.jd_gpio5) {
+	if (info->micd_clamp) {
 		jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE;
 		jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL;
 	} else {

drivers/mfd/wm5110-tables.c

@@ -1481,6 +1481,7 @@ static const struct reg_default wm5110_reg_default[] = {
 	{ 0x00000C04, 0xA101 },    /* R3076  - GPIO5 CTRL */
 	{ 0x00000C0F, 0x0400 },    /* R3087  - IRQ CTRL 1 */
 	{ 0x00000C10, 0x1000 },    /* R3088  - GPIO Debounce Config */
+	{ 0x00000C18, 0x0000 },    /* R3096  - GP Switch 1 */
 	{ 0x00000C20, 0x8002 },    /* R3104  - Misc Pad Ctrl 1 */
 	{ 0x00000C21, 0x8001 },    /* R3105  - Misc Pad Ctrl 2 */
 	{ 0x00000C22, 0x0000 },    /* R3106  - Misc Pad Ctrl 3 */
@@ -1811,6 +1812,7 @@ static bool wm5110_readable_register(struct device *dev, unsigned int reg)
 	case ARIZONA_MIC_DETECT_1:
 	case ARIZONA_MIC_DETECT_2:
 	case ARIZONA_MIC_DETECT_3:
+	case ARIZONA_MIC_DETECT_4:
 	case ARIZONA_MIC_DETECT_LEVEL_1:
 	case ARIZONA_MIC_DETECT_LEVEL_2:
 	case ARIZONA_MIC_DETECT_LEVEL_3:
@@ -1910,6 +1912,7 @@ static bool wm5110_readable_register(struct device *dev, unsigned int reg)
 	case ARIZONA_HP1_SHORT_CIRCUIT_CTRL:
 	case ARIZONA_HP2_SHORT_CIRCUIT_CTRL:
 	case ARIZONA_HP3_SHORT_CIRCUIT_CTRL:
+	case ARIZONA_HP_TEST_CTRL_1:
 	case ARIZONA_AIF1_BCLK_CTRL:
 	case ARIZONA_AIF1_TX_PIN_CTRL:
 	case ARIZONA_AIF1_RX_PIN_CTRL:
@@ -2527,6 +2530,7 @@ static bool wm5110_readable_register(struct device *dev, unsigned int reg)
 	case ARIZONA_GPIO5_CTRL:
 	case ARIZONA_IRQ_CTRL_1:
 	case ARIZONA_GPIO_DEBOUNCE_CONFIG:
+	case ARIZONA_GP_SWITCH_1:
 	case ARIZONA_MISC_PAD_CTRL_1:
 	case ARIZONA_MISC_PAD_CTRL_2:
 	case ARIZONA_MISC_PAD_CTRL_3:
@@ -2847,12 +2851,14 @@ static bool wm5110_volatile_register(struct device *dev, unsigned int reg)
 	case ARIZONA_ASYNC_SAMPLE_RATE_1_STATUS:
 	case ARIZONA_ASYNC_SAMPLE_RATE_2_STATUS:
 	case ARIZONA_MIC_DETECT_3:
+	case ARIZONA_MIC_DETECT_4:
 	case ARIZONA_HP_CTRL_1L:
 	case ARIZONA_HP_CTRL_1R:
 	case ARIZONA_HEADPHONE_DETECT_2:
 	case ARIZONA_INPUT_ENABLES_STATUS:
 	case ARIZONA_OUTPUT_STATUS_1:
 	case ARIZONA_RAW_OUTPUT_STATUS_1:
+	case ARIZONA_HP_TEST_CTRL_1:
 	case ARIZONA_SLIMBUS_RX_PORT_STATUS:
 	case ARIZONA_SLIMBUS_TX_PORT_STATUS:
 	case ARIZONA_INTERRUPT_STATUS_1:

include/dt-bindings/mfd/arizona.h

@@ -107,5 +107,7 @@
 #define ARIZONA_ACCDET_MODE_MIC 0
 #define ARIZONA_ACCDET_MODE_HPL 1
 #define ARIZONA_ACCDET_MODE_HPR 2
+#define ARIZONA_ACCDET_MODE_HPM 4
+#define ARIZONA_ACCDET_MODE_ADC 7
 
 #endif

include/linux/mfd/arizona/pdata.h

@@ -124,6 +124,9 @@ struct arizona_pdata {
 	/** Channel to use for headphone detection */
 	unsigned int hpdet_channel;
 
+	/** Use software comparison to determine mic presence */
+	bool micd_software_compare;
+
 	/** Extra debounce timeout used during initial mic detection (ms) */
 	unsigned int micd_detect_debounce;
 
@@ -181,6 +184,9 @@ struct arizona_pdata {
 
 	/** GPIO for primary IRQ (used for edge triggered emulation) */
 	int irq_gpio;
+
+	/** General purpose switch control */
+	unsigned int gpsw;
 };
 
 #endif

include/linux/mfd/arizona/registers.h

@@ -242,6 +242,7 @@
 #define ARIZONA_HP1_SHORT_CIRCUIT_CTRL           0x4A0
 #define ARIZONA_HP2_SHORT_CIRCUIT_CTRL           0x4A1
 #define ARIZONA_HP3_SHORT_CIRCUIT_CTRL           0x4A2
+#define ARIZONA_HP_TEST_CTRL_1                   0x4A4
 #define ARIZONA_SPK_CTRL_2                       0x4B5
 #define ARIZONA_SPK_CTRL_3                       0x4B6
 #define ARIZONA_DAC_COMP_1                       0x4DC
@@ -2359,9 +2360,9 @@
 #define ARIZONA_ACCDET_SRC_MASK                  0x2000  /* ACCDET_SRC */
 #define ARIZONA_ACCDET_SRC_SHIFT                     13  /* ACCDET_SRC */
 #define ARIZONA_ACCDET_SRC_WIDTH                      1  /* ACCDET_SRC */
-#define ARIZONA_ACCDET_MODE_MASK                 0x0003  /* ACCDET_MODE - [1:0] */
-#define ARIZONA_ACCDET_MODE_SHIFT                     0  /* ACCDET_MODE - [1:0] */
-#define ARIZONA_ACCDET_MODE_WIDTH                     2  /* ACCDET_MODE - [1:0] */
+#define ARIZONA_ACCDET_MODE_MASK                 0x0007  /* ACCDET_MODE - [2:0] */
+#define ARIZONA_ACCDET_MODE_SHIFT                     0  /* ACCDET_MODE - [2:0] */
+#define ARIZONA_ACCDET_MODE_WIDTH                     3  /* ACCDET_MODE - [2:0] */
 
 /*
  * R667 (0x29B) - Headphone Detect 1
@@ -3701,6 +3702,13 @@
 #define ARIZONA_HP3_SC_ENA_SHIFT                     12  /* HP3_SC_ENA */
 #define ARIZONA_HP3_SC_ENA_WIDTH                      1  /* HP3_SC_ENA */
 
+/*
+ * R1188 (0x4A4) HP Test Ctrl 1
+ */
+#define ARIZONA_HP1_TST_CAP_SEL_MASK             0x0003  /* HP1_TST_CAP_SEL - [1:0] */
+#define ARIZONA_HP1_TST_CAP_SEL_SHIFT                 0  /* HP1_TST_CAP_SEL - [1:0] */
+#define ARIZONA_HP1_TST_CAP_SEL_WIDTH                 2  /* HP1_TST_CAP_SEL - [1:0] */
+
 /*
  * R1244 (0x4DC) - DAC comp 1
  */