From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/drivers/iio/gyro/adis16080.c | 12 +++++++-----
1 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/kernel/drivers/iio/gyro/adis16080.c b/kernel/drivers/iio/gyro/adis16080.c
index a551ebd..e2f4d94 100644
--- a/kernel/drivers/iio/gyro/adis16080.c
+++ b/kernel/drivers/iio/gyro/adis16080.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ADIS16080/100 Yaw Rate Gyroscope with SPI driver
*
* Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
*/
#include <linux/delay.h>
#include <linux/mutex.h>
@@ -39,10 +38,12 @@
* @us: actual spi_device to write data
* @info: chip specific parameters
* @buf: transmit or receive buffer
+ * @lock: lock to protect buffer during reads
**/
struct adis16080_state {
struct spi_device *us;
const struct adis16080_chip_info *info;
+ struct mutex lock;
__be16 buf ____cacheline_aligned;
};
@@ -83,9 +84,9 @@
switch (mask) {
case IIO_CHAN_INFO_RAW:
- mutex_lock(&indio_dev->mlock);
+ mutex_lock(&st->lock);
ret = adis16080_read_sample(indio_dev, chan->address, val);
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&st->lock);
return ret ? ret : IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
@@ -197,6 +198,8 @@
/* this is only used for removal purposes */
spi_set_drvdata(spi, indio_dev);
+ mutex_init(&st->lock);
+
/* Allocate the comms buffers */
st->us = spi;
st->info = &adis16080_chip_info[id->driver_data];
@@ -204,7 +207,6 @@
indio_dev->name = spi->dev.driver->name;
indio_dev->channels = adis16080_channels;
indio_dev->num_channels = ARRAY_SIZE(adis16080_channels);
- indio_dev->dev.parent = &spi->dev;
indio_dev->info = &adis16080_info;
indio_dev->modes = INDIO_DIRECT_MODE;
--
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