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From:   Martin Kepplinger <martin.kepplinger@puri.sm>
To:     lorenzo.bianconi83@gmail.com, jic23@kernel.org, knaack.h@gmx.de,
        lars@metafoo.de, pmeerw@pmeerw.net
Cc:     linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, Lorenzo Bianconi <lorenzo@kernel.org>
Subject: [PATCH v3 1/5] iio: imu: st_lsm6dsx: move odr_table in st_lsm6dsx_sensor_settings
Date:   Thu, 25 Jul 2019 07:31:28 +0200
Message-Id: <20190725053132.9589-2-martin.kepplinger@puri.sm>
In-Reply-To: <20190725053132.9589-1-martin.kepplinger@puri.sm>
References: <20190725053132.9589-1-martin.kepplinger@puri.sm>
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Sender: linux-kernel-owner@vger.kernel.org
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From: Lorenzo Bianconi <lorenzo@kernel.org>

Move sensor odr table in st_lsm6dsx_sensor_settings in order to support
sensors with different odr maps. This is a preliminary patch to add
support for LSM9DS1 sensor to st_lsm6dsx driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h      |   2 +
 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 196 ++++++++++++++++---
 2 files changed, 166 insertions(+), 32 deletions(-)

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index af379a5429ed..3a89f3f6e2c7 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -200,6 +200,7 @@ struct st_lsm6dsx_ext_dev_settings {
  * @wai: Sensor WhoAmI default value.
  * @max_fifo_size: Sensor max fifo length in FIFO words.
  * @id: List of hw id/device name supported by the driver configuration.
+ * @odr_table: Hw sensors odr table (Hz + val).
  * @decimator: List of decimator register info (addr + mask).
  * @batch: List of FIFO batching register info (addr + mask).
  * @fifo_ops: Sensor hw FIFO parameters.
@@ -213,6 +214,7 @@ struct st_lsm6dsx_settings {
 		enum st_lsm6dsx_hw_id hw_id;
 		const char *name;
 	} id[ST_LSM6DSX_MAX_ID];
+	struct st_lsm6dsx_odr_table_entry odr_table[2];
 	struct st_lsm6dsx_reg decimator[ST_LSM6DSX_MAX_ID];
 	struct st_lsm6dsx_reg batch[ST_LSM6DSX_MAX_ID];
 	struct st_lsm6dsx_fifo_ops fifo_ops;
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index d8c4417cf4eb..b3c6c9792913 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -69,33 +69,6 @@
 #define ST_LSM6DSX_REG_GYRO_OUT_Y_L_ADDR	0x24
 #define ST_LSM6DSX_REG_GYRO_OUT_Z_L_ADDR	0x26
 
-static const struct st_lsm6dsx_odr_table_entry st_lsm6dsx_odr_table[] = {
-	[ST_LSM6DSX_ID_ACC] = {
-		.reg = {
-			.addr = 0x10,
-			.mask = GENMASK(7, 4),
-		},
-		.odr_avl[0] = {  13, 0x01 },
-		.odr_avl[1] = {  26, 0x02 },
-		.odr_avl[2] = {  52, 0x03 },
-		.odr_avl[3] = { 104, 0x04 },
-		.odr_avl[4] = { 208, 0x05 },
-		.odr_avl[5] = { 416, 0x06 },
-	},
-	[ST_LSM6DSX_ID_GYRO] = {
-		.reg = {
-			.addr = 0x11,
-			.mask = GENMASK(7, 4),
-		},
-		.odr_avl[0] = {  13, 0x01 },
-		.odr_avl[1] = {  26, 0x02 },
-		.odr_avl[2] = {  52, 0x03 },
-		.odr_avl[3] = { 104, 0x04 },
-		.odr_avl[4] = { 208, 0x05 },
-		.odr_avl[5] = { 416, 0x06 },
-	}
-};
-
 static const struct st_lsm6dsx_fs_table_entry st_lsm6dsx_fs_table[] = {
 	[ST_LSM6DSX_ID_ACC] = {
 		.reg = {
@@ -129,6 +102,32 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.name = ST_LSM6DS3_DEV_NAME,
 			},
 		},
+		.odr_table = {
+			[ST_LSM6DSX_ID_ACC] = {
+				.reg = {
+					.addr = 0x10,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+			[ST_LSM6DSX_ID_GYRO] = {
+				.reg = {
+					.addr = 0x11,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+		},
 		.decimator = {
 			[ST_LSM6DSX_ID_ACC] = {
 				.addr = 0x08,
@@ -179,6 +178,32 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.name = ST_LSM6DS3H_DEV_NAME,
 			},
 		},
+		.odr_table = {
+			[ST_LSM6DSX_ID_ACC] = {
+				.reg = {
+					.addr = 0x10,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+			[ST_LSM6DSX_ID_GYRO] = {
+				.reg = {
+					.addr = 0x11,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+		},
 		.decimator = {
 			[ST_LSM6DSX_ID_ACC] = {
 				.addr = 0x08,
@@ -238,6 +263,32 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.name = ST_LSM6DS3TRC_DEV_NAME,
 			},
 		},
+		.odr_table = {
+			[ST_LSM6DSX_ID_ACC] = {
+				.reg = {
+					.addr = 0x10,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+			[ST_LSM6DSX_ID_GYRO] = {
+				.reg = {
+					.addr = 0x11,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+		},
 		.decimator = {
 			[ST_LSM6DSX_ID_ACC] = {
 				.addr = 0x08,
@@ -291,6 +342,32 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.name = ST_LSM6DSOX_DEV_NAME,
 			},
 		},
+		.odr_table = {
+			[ST_LSM6DSX_ID_ACC] = {
+				.reg = {
+					.addr = 0x10,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+			[ST_LSM6DSX_ID_GYRO] = {
+				.reg = {
+					.addr = 0x11,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+		},
 		.batch = {
 			[ST_LSM6DSX_ID_ACC] = {
 				.addr = 0x09,
@@ -359,6 +436,32 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.name = ST_ASM330LHH_DEV_NAME,
 			},
 		},
+		.odr_table = {
+			[ST_LSM6DSX_ID_ACC] = {
+				.reg = {
+					.addr = 0x10,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+			[ST_LSM6DSX_ID_GYRO] = {
+				.reg = {
+					.addr = 0x11,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+		},
 		.batch = {
 			[ST_LSM6DSX_ID_ACC] = {
 				.addr = 0x09,
@@ -401,6 +504,32 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 				.name = ST_LSM6DSR_DEV_NAME,
 			},
 		},
+		.odr_table = {
+			[ST_LSM6DSX_ID_ACC] = {
+				.reg = {
+					.addr = 0x10,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+			[ST_LSM6DSX_ID_GYRO] = {
+				.reg = {
+					.addr = 0x11,
+					.mask = GENMASK(7, 4),
+				},
+				.odr_avl[0] = {  13, 0x01 },
+				.odr_avl[1] = {  26, 0x02 },
+				.odr_avl[2] = {  52, 0x03 },
+				.odr_avl[3] = { 104, 0x04 },
+				.odr_avl[4] = { 208, 0x05 },
+				.odr_avl[5] = { 416, 0x06 },
+			},
+		},
 		.batch = {
 			[ST_LSM6DSX_ID_ACC] = {
 				.addr = 0x09,
@@ -563,20 +692,22 @@ static int st_lsm6dsx_set_full_scale(struct st_lsm6dsx_sensor *sensor,
 
 int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u16 odr, u8 *val)
 {
+	const struct st_lsm6dsx_odr_table_entry *odr_table;
 	int i;
 
+	odr_table = &sensor->hw->settings->odr_table[sensor->id];
 	for (i = 0; i < ST_LSM6DSX_ODR_LIST_SIZE; i++)
 		/*
 		 * ext devices can run at different odr respect to
 		 * accel sensor
 		 */
-		if (st_lsm6dsx_odr_table[sensor->id].odr_avl[i].hz >= odr)
+		if (odr_table->odr_avl[i].hz >= odr)
 			break;
 
 	if (i == ST_LSM6DSX_ODR_LIST_SIZE)
 		return -EINVAL;
 
-	*val = st_lsm6dsx_odr_table[sensor->id].odr_avl[i].val;
+	*val = odr_table->odr_avl[i].val;
 
 	return 0;
 }
@@ -641,7 +772,7 @@ static int st_lsm6dsx_set_odr(struct st_lsm6dsx_sensor *sensor, u16 req_odr)
 			return err;
 	}
 
-	reg = &st_lsm6dsx_odr_table[ref_sensor->id].reg;
+	reg = &hw->settings->odr_table[ref_sensor->id].reg;
 	data = ST_LSM6DSX_SHIFT_VAL(val, reg->mask);
 	return st_lsm6dsx_update_bits_locked(hw, reg->addr, reg->mask, data);
 }
@@ -786,11 +917,12 @@ st_lsm6dsx_sysfs_sampling_frequency_avail(struct device *dev,
 {
 	struct st_lsm6dsx_sensor *sensor = iio_priv(dev_get_drvdata(dev));
 	enum st_lsm6dsx_sensor_id id = sensor->id;
+	struct st_lsm6dsx_hw *hw = sensor->hw;
 	int i, len = 0;
 
 	for (i = 0; i < ST_LSM6DSX_ODR_LIST_SIZE; i++)
 		len += scnprintf(buf + len, PAGE_SIZE - len, "%d ",
-				 st_lsm6dsx_odr_table[id].odr_avl[i].hz);
+				 hw->settings->odr_table[id].odr_avl[i].hz);
 	buf[len - 1] = '\n';
 
 	return len;
@@ -1040,7 +1172,7 @@ static struct iio_dev *st_lsm6dsx_alloc_iiodev(struct st_lsm6dsx_hw *hw,
 	sensor = iio_priv(iio_dev);
 	sensor->id = id;
 	sensor->hw = hw;
-	sensor->odr = st_lsm6dsx_odr_table[id].odr_avl[0].hz;
+	sensor->odr = hw->settings->odr_table[id].odr_avl[0].hz;
 	sensor->gain = st_lsm6dsx_fs_table[id].fs_avl[0].gain;
 	sensor->watermark = 1;
 
-- 
2.20.1