[alsa-devel] [PATCH v3 03/13] mfd: wcd9335: add wcd irq support
Srinivas Kandagatla
srinivas.kandagatla at linaro.org
Tue Sep 4 12:24:50 CEST 2018
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 at linaro.org>
Reviewed-by: Vinod Koul <vkoul at 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];
};
--
2.18.0
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