From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c | 157 +++++++++++++++++++++++++++++----------------------
1 files changed, 89 insertions(+), 68 deletions(-)
diff --git a/kernel/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c b/kernel/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
index e46eb4d..28cfae1 100644
--- a/kernel/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
+++ b/kernel/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
@@ -1,14 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2012 Invensense, Inc.
-*
-* This software is licensed under the terms of the GNU General Public
-* License version 2, as published by the Free Software Foundation, and
-* may be copied, distributed, and modified under those terms.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU General Public License for more details.
*/
#include <linux/acpi.h>
@@ -18,6 +10,7 @@
#include <linux/iio/iio.h>
#include <linux/module.h>
#include <linux/of_device.h>
+#include <linux/property.h>
#include "inv_mpu_iio.h"
static const struct regmap_config inv_mpu_regmap_config = {
@@ -27,53 +20,71 @@
static int inv_mpu6050_select_bypass(struct i2c_mux_core *muxc, u32 chan_id)
{
- struct iio_dev *indio_dev = i2c_mux_priv(muxc);
- struct inv_mpu6050_state *st = iio_priv(indio_dev);
- int ret;
-
- mutex_lock(&st->lock);
-
- ret = inv_mpu6050_set_power_itg(st, true);
- if (ret)
- goto error_unlock;
-
- ret = regmap_write(st->map, st->reg->int_pin_cfg,
- st->irq_mask | INV_MPU6050_BIT_BYPASS_EN);
-
-error_unlock:
- mutex_unlock(&st->lock);
-
- return ret;
-}
-
-static int inv_mpu6050_deselect_bypass(struct i2c_mux_core *muxc, u32 chan_id)
-{
- struct iio_dev *indio_dev = i2c_mux_priv(muxc);
- struct inv_mpu6050_state *st = iio_priv(indio_dev);
-
- mutex_lock(&st->lock);
-
- /* It doesn't really matter if any of the calls fail */
- regmap_write(st->map, st->reg->int_pin_cfg, st->irq_mask);
- inv_mpu6050_set_power_itg(st, false);
-
- mutex_unlock(&st->lock);
-
return 0;
}
-static const char *inv_mpu_match_acpi_device(struct device *dev,
- enum inv_devices *chip_id)
+static bool inv_mpu_i2c_aux_bus(struct device *dev)
{
- const struct acpi_device_id *id;
+ struct inv_mpu6050_state *st = iio_priv(dev_get_drvdata(dev));
- id = acpi_match_device(dev->driver->acpi_match_table, dev);
- if (!id)
- return NULL;
+ switch (st->chip_type) {
+ case INV_ICM20608:
+ case INV_ICM20609:
+ case INV_ICM20689:
+ case INV_ICM20602:
+ case INV_IAM20680:
+ /* no i2c auxiliary bus on the chip */
+ return false;
+ case INV_MPU9150:
+ case INV_MPU9250:
+ case INV_MPU9255:
+ if (st->magn_disabled)
+ return true;
+ else
+ return false;
+ default:
+ return true;
+ }
+}
- *chip_id = (int)id->driver_data;
+static int inv_mpu_i2c_aux_setup(struct iio_dev *indio_dev)
+{
+ struct inv_mpu6050_state *st = iio_priv(indio_dev);
+ struct device *dev = indio_dev->dev.parent;
+ struct device_node *mux_node;
+ int ret;
- return dev_name(dev);
+ /*
+ * MPU9xxx magnetometer support requires to disable i2c auxiliary bus.
+ * To ensure backward compatibility with existing setups, do not disable
+ * i2c auxiliary bus if it used.
+ * Check for i2c-gate node in devicetree and set magnetometer disabled.
+ * Only MPU6500 is supported by ACPI, no need to check.
+ */
+ switch (st->chip_type) {
+ case INV_MPU9150:
+ case INV_MPU9250:
+ case INV_MPU9255:
+ mux_node = of_get_child_by_name(dev->of_node, "i2c-gate");
+ if (mux_node != NULL) {
+ st->magn_disabled = true;
+ dev_warn(dev, "disable internal use of magnetometer\n");
+ }
+ of_node_put(mux_node);
+ break;
+ default:
+ break;
+ }
+
+ /* enable i2c bypass when using i2c auxiliary bus */
+ if (inv_mpu_i2c_aux_bus(dev)) {
+ ret = regmap_write(st->map, st->reg->int_pin_cfg,
+ st->irq_mask | INV_MPU6050_BIT_BYPASS_EN);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
}
/**
@@ -86,6 +97,7 @@
static int inv_mpu_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ const void *match;
struct inv_mpu6050_state *st;
int result;
enum inv_devices chip_type;
@@ -96,46 +108,36 @@
I2C_FUNC_SMBUS_I2C_BLOCK))
return -EOPNOTSUPP;
- if (client->dev.of_node) {
- chip_type = (enum inv_devices)
- of_device_get_match_data(&client->dev);
+ match = device_get_match_data(&client->dev);
+ if (match) {
+ chip_type = (enum inv_devices)match;
name = client->name;
} else if (id) {
chip_type = (enum inv_devices)
id->driver_data;
name = id->name;
- } else if (ACPI_HANDLE(&client->dev)) {
- name = inv_mpu_match_acpi_device(&client->dev, &chip_type);
- if (!name)
- return -ENODEV;
} else {
return -ENOSYS;
}
regmap = devm_regmap_init_i2c(client, &inv_mpu_regmap_config);
if (IS_ERR(regmap)) {
- dev_err(&client->dev, "Failed to register i2c regmap %d\n",
- (int)PTR_ERR(regmap));
+ dev_err(&client->dev, "Failed to register i2c regmap: %pe\n",
+ regmap);
return PTR_ERR(regmap);
}
result = inv_mpu_core_probe(regmap, client->irq, name,
- NULL, chip_type);
+ inv_mpu_i2c_aux_setup, chip_type);
if (result < 0)
return result;
st = iio_priv(dev_get_drvdata(&client->dev));
- switch (st->chip_type) {
- case INV_ICM20608:
- case INV_ICM20602:
- /* no i2c auxiliary bus on the chip */
- break;
- default:
+ if (inv_mpu_i2c_aux_bus(&client->dev)) {
/* declare i2c auxiliary bus */
st->muxc = i2c_mux_alloc(client->adapter, &client->dev,
1, 0, I2C_MUX_LOCKED | I2C_MUX_GATE,
- inv_mpu6050_select_bypass,
- inv_mpu6050_deselect_bypass);
+ inv_mpu6050_select_bypass, NULL);
if (!st->muxc)
return -ENOMEM;
st->muxc->priv = dev_get_drvdata(&client->dev);
@@ -145,7 +147,6 @@
result = inv_mpu_acpi_create_mux_client(client);
if (result)
goto out_del_mux;
- break;
}
return 0;
@@ -180,7 +181,11 @@
{"mpu9250", INV_MPU9250},
{"mpu9255", INV_MPU9255},
{"icm20608", INV_ICM20608},
+ {"icm20609", INV_ICM20609},
+ {"icm20689", INV_ICM20689},
{"icm20602", INV_ICM20602},
+ {"icm20690", INV_ICM20690},
+ {"iam20680", INV_IAM20680},
{}
};
@@ -216,9 +221,25 @@
.data = (void *)INV_ICM20608
},
{
+ .compatible = "invensense,icm20609",
+ .data = (void *)INV_ICM20609
+ },
+ {
+ .compatible = "invensense,icm20689",
+ .data = (void *)INV_ICM20689
+ },
+ {
.compatible = "invensense,icm20602",
.data = (void *)INV_ICM20602
},
+ {
+ .compatible = "invensense,icm20690",
+ .data = (void *)INV_ICM20690
+ },
+ {
+ .compatible = "invensense,iam20680",
+ .data = (void *)INV_IAM20680
+ },
{ }
};
MODULE_DEVICE_TABLE(of, inv_of_match);
--
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