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From: Francesco Lavra <flavra@baylibre.com>
To: "Lorenzo Bianconi" <lorenzo@kernel.org>,
	"Jonathan Cameron" <jic23@kernel.org>,
	"David Lechner" <dlechner@baylibre.com>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Andy Shevchenko" <andy@kernel.org>,
	linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 3/9] iio: imu: st_lsm6dsx: move wakeup event enable mask to event_src
Date: Thu, 20 Nov 2025 09:26:09 +0100	[thread overview]
Message-ID: <20251120082615.3263892-4-flavra@baylibre.com> (raw)
In-Reply-To: <20251120082615.3263892-1-flavra@baylibre.com>

The mask value being assigned to the irq1_func and irq2_func fields of the
irq_config struct is specific to a single event source (i.e. the wakeup
event), and as such it should be separate from the definition of the
interrupt function registers, which cover multiple event sources.
In preparation for adding support for more event types, change the
irq1_func and irq2_func type from an {address, mask} pair to an address,
and move the mask value to a new field of struct st_lsm6dsx_event_src. No
functional changes.

Signed-off-by: Francesco Lavra <flavra@baylibre.com>
---
 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h      |  7 +-
 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 81 +++++++-------------
 2 files changed, 31 insertions(+), 57 deletions(-)

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index 4c3ff1cc0097..bbb967b2754b 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -249,6 +249,7 @@ enum st_lsm6dsx_event_id {
 
 struct st_lsm6dsx_event_src {
 	struct st_lsm6dsx_reg value;
+	u8 enable_mask;
 	u8 status_reg;
 	u8 status_mask;
 	u8 status_x_mask;
@@ -344,8 +345,8 @@ struct st_lsm6dsx_settings {
 	struct {
 		struct st_lsm6dsx_reg irq1;
 		struct st_lsm6dsx_reg irq2;
-		struct st_lsm6dsx_reg irq1_func;
-		struct st_lsm6dsx_reg irq2_func;
+		u8 irq1_func;
+		u8 irq2_func;
 		struct st_lsm6dsx_reg lir;
 		struct st_lsm6dsx_reg clear_on_read;
 		struct st_lsm6dsx_reg hla;
@@ -444,7 +445,7 @@ struct st_lsm6dsx_hw {
 	u8 ts_sip;
 	u8 sip;
 
-	const struct st_lsm6dsx_reg *irq_routing;
+	u8 irq_routing;
 	u8 event_threshold;
 	u8 enable_event;
 
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index a71174e75f44..ce5f9213d476 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -328,14 +328,8 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.addr = 0x58,
 				.mask = BIT(0),
 			},
-			.irq1_func = {
-				.addr = 0x5e,
-				.mask = BIT(5),
-			},
-			.irq2_func = {
-				.addr = 0x5f,
-				.mask = BIT(5),
-			},
+			.irq1_func = 0x5e,
+			.irq2_func = 0x5f,
 			.hla = {
 				.addr = 0x12,
 				.mask = BIT(5),
@@ -394,6 +388,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 						.addr = 0x5b,
 						.mask = GENMASK(5, 0),
 					},
+					.enable_mask = BIT(5),
 					.status_reg = 0x1b,
 					.status_mask = BIT(3),
 					.status_z_mask = BIT(0),
@@ -498,14 +493,8 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.addr = 0x58,
 				.mask = BIT(0),
 			},
-			.irq1_func = {
-				.addr = 0x5e,
-				.mask = BIT(5),
-			},
-			.irq2_func = {
-				.addr = 0x5f,
-				.mask = BIT(5),
-			},
+			.irq1_func = 0x5e,
+			.irq2_func = 0x5f,
 			.hla = {
 				.addr = 0x12,
 				.mask = BIT(5),
@@ -564,6 +553,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 						.addr = 0x5b,
 						.mask = GENMASK(5, 0),
 					},
+					.enable_mask = BIT(5),
 					.status_reg = 0x1b,
 					.status_mask = BIT(3),
 					.status_z_mask = BIT(0),
@@ -698,14 +688,8 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.addr = 0x58,
 				.mask = BIT(0),
 			},
-			.irq1_func = {
-				.addr = 0x5e,
-				.mask = BIT(5),
-			},
-			.irq2_func = {
-				.addr = 0x5f,
-				.mask = BIT(5),
-			},
+			.irq1_func = 0x5e,
+			.irq2_func = 0x5f,
 			.hla = {
 				.addr = 0x12,
 				.mask = BIT(5),
@@ -805,6 +789,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 						.addr = 0x5b,
 						.mask = GENMASK(5, 0),
 					},
+					.enable_mask = BIT(5),
 					.status_reg = 0x1b,
 					.status_mask = BIT(3),
 					.status_z_mask = BIT(0),
@@ -951,14 +936,8 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.addr = 0x56,
 				.mask = BIT(6),
 			},
-			.irq1_func = {
-				.addr = 0x5e,
-				.mask = BIT(5),
-			},
-			.irq2_func = {
-				.addr = 0x5f,
-				.mask = BIT(5),
-			},
+			.irq1_func = 0x5e,
+			.irq2_func = 0x5f,
 			.hla = {
 				.addr = 0x12,
 				.mask = BIT(5),
@@ -1046,6 +1025,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 						.addr = 0x5b,
 						.mask = GENMASK(5, 0),
 					},
+					.enable_mask = BIT(5),
 					.status_reg = 0x1b,
 					.status_mask = BIT(3),
 					.status_z_mask = BIT(0),
@@ -1168,14 +1148,8 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.addr = 0x56,
 				.mask = BIT(6),
 			},
-			.irq1_func = {
-				.addr = 0x5e,
-				.mask = BIT(5),
-			},
-			.irq2_func = {
-				.addr = 0x5f,
-				.mask = BIT(5),
-			},
+			.irq1_func = 0x5e,
+			.irq2_func = 0x5f,
 			.hla = {
 				.addr = 0x12,
 				.mask = BIT(5),
@@ -1231,6 +1205,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 						.addr = 0x5b,
 						.mask = GENMASK(5, 0),
 					},
+					.enable_mask = BIT(5),
 					.status_reg = 0x1b,
 					.status_mask = BIT(3),
 					.status_z_mask = BIT(0),
@@ -1347,14 +1322,8 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.addr = 0x56,
 				.mask = BIT(0),
 			},
-			.irq1_func = {
-				.addr = 0x5e,
-				.mask = BIT(5),
-			},
-			.irq2_func = {
-				.addr = 0x5f,
-				.mask = BIT(5),
-			},
+			.irq1_func = 0x5e,
+			.irq2_func = 0x5f,
 			.hla = {
 				.addr = 0x03,
 				.mask = BIT(4),
@@ -1441,6 +1410,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 						.addr = 0x5b,
 						.mask = GENMASK(5, 0),
 					},
+					.enable_mask = BIT(5),
 					.status_reg = 0x45,
 					.status_mask = BIT(3),
 					.status_z_mask = BIT(0),
@@ -1899,10 +1869,12 @@ static int st_lsm6dsx_write_raw(struct iio_dev *iio_dev,
 static int st_lsm6dsx_event_setup(struct st_lsm6dsx_hw *hw, bool state)
 {
 	const struct st_lsm6dsx_reg *reg;
+	const struct st_lsm6dsx_event_src *src;
+	u8 enable_mask;
 	unsigned int data;
 	int err;
 
-	if (!hw->settings->irq_config.irq1_func.addr)
+	if (!hw->irq_routing)
 		return -ENOTSUPP;
 
 	reg = &hw->settings->event_settings.enable_reg;
@@ -1915,9 +1887,10 @@ static int st_lsm6dsx_event_setup(struct st_lsm6dsx_hw *hw, bool state)
 	}
 
 	/* Enable wakeup interrupt */
-	data = ST_LSM6DSX_SHIFT_VAL(state, hw->irq_routing->mask);
-	return st_lsm6dsx_update_bits_locked(hw, hw->irq_routing->addr,
-					     hw->irq_routing->mask, data);
+	src = &hw->settings->event_settings.sources[ST_LSM6DSX_EVENT_WAKEUP];
+	enable_mask = src->enable_mask;
+	data = ST_LSM6DSX_SHIFT_VAL(state, enable_mask);
+	return st_lsm6dsx_update_bits_locked(hw, hw->irq_routing, enable_mask, data);
 }
 
 static int st_lsm6dsx_read_event(struct iio_dev *iio_dev,
@@ -2171,11 +2144,11 @@ st_lsm6dsx_get_drdy_reg(struct st_lsm6dsx_hw *hw,
 
 	switch (drdy_pin) {
 	case 1:
-		hw->irq_routing = &hw->settings->irq_config.irq1_func;
+		hw->irq_routing = hw->settings->irq_config.irq1_func;
 		*drdy_reg = &hw->settings->irq_config.irq1;
 		break;
 	case 2:
-		hw->irq_routing = &hw->settings->irq_config.irq2_func;
+		hw->irq_routing = hw->settings->irq_config.irq2_func;
 		*drdy_reg = &hw->settings->irq_config.irq2;
 		break;
 	default:
-- 
2.39.5


  parent reply	other threads:[~2025-11-20  8:26 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-20  8:26 [PATCH v2 0/9] st_lsm6dsx: add tap event detection Francesco Lavra
2025-11-20  8:26 ` [PATCH v2 1/9] iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without " Francesco Lavra
2025-11-21  7:50   ` Lorenzo Bianconi
2025-11-20  8:26 ` [PATCH v2 2/9] iio: imu: st_lsm6dsx: make event_settings more generic Francesco Lavra
2025-11-21  7:54   ` Lorenzo Bianconi
2025-11-20  8:26 ` Francesco Lavra [this message]
2025-11-21  8:01   ` [PATCH v2 3/9] iio: imu: st_lsm6dsx: move wakeup event enable mask to event_src Lorenzo Bianconi
2025-11-20  8:26 ` [PATCH v2 4/9] iio: imu: st_lsm6dsx: rework code to check for enabled events Francesco Lavra
2025-11-20  8:26 ` [PATCH v2 5/9] iio: imu: st_lsm6dsx: remove event_threshold field from hw struct Francesco Lavra
2025-11-21  8:14   ` Lorenzo Bianconi
2025-11-21  8:43     ` Francesco Lavra
2025-11-21  9:34       ` Andy Shevchenko
2025-11-20  8:26 ` [PATCH v2 6/9] iio: imu: st_lsm6dsx: make event management functions generic Francesco Lavra
2025-11-21  8:53   ` Lorenzo Bianconi
2025-11-20  8:26 ` [PATCH v2 7/9] iio: imu: st_lsm6dsx: add event configurability on a per axis basis Francesco Lavra
2025-11-20  9:06   ` Andy Shevchenko
2025-11-20  8:26 ` [PATCH v2 8/9] iio: imu: st_lsm6dsx: add event spec parameter to iio_chan_spec initializer Francesco Lavra
2025-11-20  8:26 ` [PATCH v2 9/9] iio: imu: st_lsm6dsx: add tap event detection Francesco Lavra
2025-11-21  8:19   ` Lorenzo Bianconi
2025-11-20  9:09 ` [PATCH v2 0/9] " Andy Shevchenko

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