WCD9335 supports two lines of irqs INTR1 and INTR2. Multiple interrupts are muxed via these lines. INTR1 consists of all possible interrupt sources like: Ear OCP, HPH OCP, MBHC, MAD, VBAT, and SVA. INTR2 is a subset of first interrupt sources like MAD, VBAT, and SVA
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Reviewed-by: Vinod Koul vkoul@kernel.org --- drivers/mfd/wcd9335-core.c | 78 +++++++++++++++++++++++++++++ include/linux/mfd/wcd9335/wcd9335.h | 33 ++++++++++++ 2 files changed, 111 insertions(+)
diff --git a/drivers/mfd/wcd9335-core.c b/drivers/mfd/wcd9335-core.c index dbfae50c28b2..e2fc438c1a34 100644 --- a/drivers/mfd/wcd9335-core.c +++ b/drivers/mfd/wcd9335-core.c @@ -3,6 +3,7 @@
#include <linux/clk.h> #include <linux/gpio.h> +#include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/mfd/core.h> #include <linux/mfd/wcd9335/registers.h> @@ -10,6 +11,7 @@ #include <linux/module.h> #include <linux/of_gpio.h> #include <linux/of.h> +#include <linux/of_irq.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> @@ -84,6 +86,52 @@ static struct regmap_config wcd9335_ifc_regmap_config = { .num_ranges = ARRAY_SIZE(wcd9335_ifc_ranges), };
+static const struct regmap_irq wcd9335_irqs[] = { + /* INTR_REG 0 */ + REGMAP_IRQ_REG(WCD9335_IRQ_SLIMBUS, 0, BIT(0)), + REGMAP_IRQ_REG(WCD9335_IRQ_FLL_LOCK_LOSS, 0, BIT(1)), + REGMAP_IRQ_REG(WCD9335_IRQ_HPH_PA_OCPL_FAULT, 0, BIT(2)), + REGMAP_IRQ_REG(WCD9335_IRQ_HPH_PA_OCPR_FAULT, 0, BIT(3)), + REGMAP_IRQ_REG(WCD9335_IRQ_EAR_PA_OCP_FAULT, 0, BIT(4)), + REGMAP_IRQ_REG(WCD9335_IRQ_HPH_PA_CNPL_COMPLETE, 0, BIT(5)), + REGMAP_IRQ_REG(WCD9335_IRQ_HPH_PA_CNPR_COMPLETE, 0, BIT(6)), + REGMAP_IRQ_REG(WCD9335_IRQ_EAR_PA_CNP_COMPLETE, 0, BIT(7)), + /* INTR_REG 1 */ + REGMAP_IRQ_REG(WCD9335_IRQ_MBHC_SW_DET, 1, BIT(0)), + REGMAP_IRQ_REG(WCD9335_IRQ_MBHC_ELECT_INS_REM_DET, 1, BIT(1)), + REGMAP_IRQ_REG(WCD9335_IRQ_MBHC_BUTTON_PRESS_DET, 1, BIT(2)), + REGMAP_IRQ_REG(WCD9335_IRQ_MBHC_BUTTON_RELEASE_DET, 1, BIT(3)), + REGMAP_IRQ_REG(WCD9335_IRQ_MBHC_ELECT_INS_REM_LEG_DET, 1, BIT(4)), + /* INTR_REG 2 */ + REGMAP_IRQ_REG(WCD9335_IRQ_LINE_PA1_CNP_COMPLETE, 2, BIT(0)), + REGMAP_IRQ_REG(WCD9335_IRQ_LINE_PA2_CNP_COMPLETE, 2, BIT(1)), + REGMAP_IRQ_REG(WCD9335_IRQ_LINE_PA3_CNP_COMPLETE, 2, BIT(2)), + REGMAP_IRQ_REG(WCD9335_IRQ_LINE_PA4_CNP_COMPLETE, 2, BIT(3)), + REGMAP_IRQ_REG(WCD9335_IRQ_SOUNDWIRE, 2, BIT(4)), + REGMAP_IRQ_REG(WCD9335_IRQ_VDD_DIG_RAMP_COMPLETE, 2, BIT(5)), + REGMAP_IRQ_REG(WCD9335_IRQ_RCO_ERROR, 2, BIT(6)), + REGMAP_IRQ_REG(WCD9335_IRQ_SVA_ERROR, 2, BIT(7)), + /* INTR_REG 3 */ + REGMAP_IRQ_REG(WCD9335_IRQ_MAD_AUDIO, 3, BIT(0)), + REGMAP_IRQ_REG(WCD9335_IRQ_MAD_BEACON, 3, BIT(1)), + REGMAP_IRQ_REG(WCD9335_IRQ_MAD_ULTRASOUND, 3, BIT(2)), + REGMAP_IRQ_REG(WCD9335_IRQ_VBAT_ATTACK, 3, BIT(3)), + REGMAP_IRQ_REG(WCD9335_IRQ_VBAT_RESTORE, 3, BIT(4)), + REGMAP_IRQ_REG(WCD9335_IRQ_SVA_OUTBOX1, 3, BIT(5)), + REGMAP_IRQ_REG(WCD9335_IRQ_SVA_OUTBOX2, 3, BIT(6)), +}; + +static const struct regmap_irq_chip wcd9335_regmap_irq1_chip = { + .name = "wcd9335_pin1_irq", + .status_base = WCD9335_INTR_PIN1_STATUS0, + .mask_base = WCD9335_INTR_PIN1_MASK0, + .ack_base = WCD9335_INTR_PIN1_CLEAR0, + .type_base = WCD9335_INTR_LEVEL0, + .num_regs = 4, + .irqs = wcd9335_irqs, + .num_irqs = ARRAY_SIZE(wcd9335_irqs), +}; + static int wcd9335_parse_dt(struct wcd9335 *wcd) { struct device *dev = wcd->dev; @@ -183,6 +231,32 @@ static int wcd9335_bring_up(struct wcd9335 *wcd) return 0; }
+static int wcd9335_irq_init(struct wcd9335 *wcd) +{ + int ret; + + /* + * INTR1 consists of all possible interrupt sources Ear OCP, + * HPH OCP, MBHC, MAD, VBAT, and SVA + * INTR2 is a subset of first interrupt sources MAD, VBAT, and SVA + */ + wcd->intr1 = of_irq_get_byname(wcd->dev->of_node, "intr1"); + if (wcd->intr1 < 0) { + if (wcd->intr1 != -EPROBE_DEFER) + dev_err(wcd->dev, "Unable to configure IRQ\n"); + + return wcd->intr1; + } + + ret = devm_regmap_add_irq_chip(wcd->dev, wcd->regmap, wcd->intr1, + IRQF_TRIGGER_HIGH, 0, + &wcd9335_regmap_irq1_chip, &wcd->irq_data); + if (ret) + dev_err(wcd->dev, "Failed to register IRQ chip: %d\n", ret); + + return ret; +} + static int wcd9335_slim_probe(struct slim_device *slim) { struct device *dev = &slim->dev; @@ -264,6 +338,10 @@ static int wcd9335_slim_status(struct slim_device *sdev, return ret; }
+ ret = wcd9335_irq_init(wcd); + if (ret) + return ret; + ret = devm_mfd_add_devices(wcd->dev, 0, wcd9335_devices, ARRAY_SIZE(wcd9335_devices), NULL, 0, NULL); if (ret < 0) diff --git a/include/linux/mfd/wcd9335/wcd9335.h b/include/linux/mfd/wcd9335/wcd9335.h index b16d730aa1a4..82a18d08433f 100644 --- a/include/linux/mfd/wcd9335/wcd9335.h +++ b/include/linux/mfd/wcd9335/wcd9335.h @@ -9,6 +9,38 @@ #define WCD9335_VERSION_2_0 2 #define WCD9335_MAX_SUPPLY 5
+#define WCD9335_IRQ_SLIMBUS 0 +#define WCD9335_IRQ_FLL_LOCK_LOSS 1 +#define WCD9335_IRQ_HPH_PA_OCPL_FAULT 2 +#define WCD9335_IRQ_HPH_PA_OCPR_FAULT 3 +#define WCD9335_IRQ_EAR_PA_OCP_FAULT 4 +#define WCD9335_IRQ_HPH_PA_CNPL_COMPLETE 5 +#define WCD9335_IRQ_HPH_PA_CNPR_COMPLETE 6 +#define WCD9335_IRQ_EAR_PA_CNP_COMPLETE 7 +#define WCD9335_IRQ_MBHC_SW_DET 8 +#define WCD9335_IRQ_MBHC_ELECT_INS_REM_DET 9 +#define WCD9335_IRQ_MBHC_BUTTON_PRESS_DET 10 +#define WCD9335_IRQ_MBHC_BUTTON_RELEASE_DET 11 +#define WCD9335_IRQ_MBHC_ELECT_INS_REM_LEG_DET 12 +#define WCD9335_IRQ_RESERVED_0 13 +#define WCD9335_IRQ_RESERVED_1 14 +#define WCD9335_IRQ_RESERVED_2 15 +#define WCD9335_IRQ_LINE_PA1_CNP_COMPLETE 16 +#define WCD9335_IRQ_LINE_PA2_CNP_COMPLETE 17 +#define WCD9335_IRQ_LINE_PA3_CNP_COMPLETE 18 +#define WCD9335_IRQ_LINE_PA4_CNP_COMPLETE 19 +#define WCD9335_IRQ_SOUNDWIRE 20 +#define WCD9335_IRQ_VDD_DIG_RAMP_COMPLETE 21 +#define WCD9335_IRQ_RCO_ERROR 22 +#define WCD9335_IRQ_SVA_ERROR 23 +#define WCD9335_IRQ_MAD_AUDIO 24 +#define WCD9335_IRQ_MAD_BEACON 25 +#define WCD9335_IRQ_MAD_ULTRASOUND 26 +#define WCD9335_IRQ_VBAT_ATTACK 27 +#define WCD9335_IRQ_VBAT_RESTORE 28 +#define WCD9335_IRQ_SVA_OUTBOX1 29 +#define WCD9335_IRQ_SVA_OUTBOX2 30 + enum wcd_interface_type { WCD9335_INTERFACE_TYPE_SLIMBUS = 1, WCD9335_INTERFACE_TYPE_I2C, @@ -26,6 +58,7 @@ struct wcd9335 { struct slim_device *slim_ifc_dev; struct regmap *regmap; struct regmap *ifc_dev_regmap; + struct regmap_irq_chip_data *irq_data; struct regulator_bulk_data supplies[WCD9335_MAX_SUPPLY]; };