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/light/ltr501.c | 47 ++++++++++++++++++++++-------------------------
1 files changed, 22 insertions(+), 25 deletions(-)
diff --git a/kernel/drivers/iio/light/ltr501.c b/kernel/drivers/iio/light/ltr501.c
index e9bc23d..379236a 100644
--- a/kernel/drivers/iio/light/ltr501.c
+++ b/kernel/drivers/iio/light/ltr501.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* ltr501.c - Support for Lite-On LTR501 ambient light and proximity sensor
*
* Copyright 2014 Peter Meerwald <pmeerw@pmeerw.net>
- *
- * This file is subject to the terms and conditions of version 2 of
- * the GNU General Public License. See the file COPYING in the main
- * directory of this archive for more details.
*
* 7-bit I2C slave address 0x23
*
@@ -107,12 +104,12 @@
int uscale;
};
-static struct ltr501_gain ltr501_als_gain_tbl[] = {
+static const struct ltr501_gain ltr501_als_gain_tbl[] = {
{1, 0},
{0, 5000},
};
-static struct ltr501_gain ltr559_als_gain_tbl[] = {
+static const struct ltr501_gain ltr559_als_gain_tbl[] = {
{1, 0},
{0, 500000},
{0, 250000},
@@ -123,14 +120,14 @@
{0, 10000},
};
-static struct ltr501_gain ltr501_ps_gain_tbl[] = {
+static const struct ltr501_gain ltr501_ps_gain_tbl[] = {
{1, 0},
{0, 250000},
{0, 125000},
{0, 62500},
};
-static struct ltr501_gain ltr559_ps_gain_tbl[] = {
+static const struct ltr501_gain ltr559_ps_gain_tbl[] = {
{0, 62500}, /* x16 gain */
{0, 31250}, /* x32 gain */
{0, 15625}, /* bits X1 are for x64 gain */
@@ -139,9 +136,9 @@
struct ltr501_chip_info {
u8 partid;
- struct ltr501_gain *als_gain;
+ const struct ltr501_gain *als_gain;
int als_gain_tbl_size;
- struct ltr501_gain *ps_gain;
+ const struct ltr501_gain *ps_gain;
int ps_gain_tbl_size;
u8 als_mode_active;
u8 als_gain_mask;
@@ -198,7 +195,7 @@
return -EINVAL;
}
-static int ltr501_als_read_samp_freq(struct ltr501_data *data,
+static int ltr501_als_read_samp_freq(const struct ltr501_data *data,
int *val, int *val2)
{
int ret, i;
@@ -216,7 +213,7 @@
return IIO_VAL_INT_PLUS_MICRO;
}
-static int ltr501_ps_read_samp_freq(struct ltr501_data *data,
+static int ltr501_ps_read_samp_freq(const struct ltr501_data *data,
int *val, int *val2)
{
int ret, i;
@@ -272,7 +269,7 @@
return ret;
}
-static int ltr501_als_read_samp_period(struct ltr501_data *data, int *val)
+static int ltr501_als_read_samp_period(const struct ltr501_data *data, int *val)
{
int ret, i;
@@ -288,7 +285,7 @@
return IIO_VAL_INT;
}
-static int ltr501_ps_read_samp_period(struct ltr501_data *data, int *val)
+static int ltr501_ps_read_samp_period(const struct ltr501_data *data, int *val)
{
int ret, i;
@@ -327,7 +324,7 @@
return lux / 1000;
}
-static int ltr501_drdy(struct ltr501_data *data, u8 drdy_mask)
+static int ltr501_drdy(const struct ltr501_data *data, u8 drdy_mask)
{
int tries = 100;
int ret, status;
@@ -379,7 +376,8 @@
}
/* read int time in micro seconds */
-static int ltr501_read_it_time(struct ltr501_data *data, int *val, int *val2)
+static int ltr501_read_it_time(const struct ltr501_data *data,
+ int *val, int *val2)
{
int ret, index;
@@ -397,7 +395,7 @@
return IIO_VAL_INT_PLUS_MICRO;
}
-static int ltr501_read_als(struct ltr501_data *data, __le16 buf[2])
+static int ltr501_read_als(const struct ltr501_data *data, __le16 buf[2])
{
int ret;
@@ -409,7 +407,7 @@
buf, 2 * sizeof(__le16));
}
-static int ltr501_read_ps(struct ltr501_data *data)
+static int ltr501_read_ps(const struct ltr501_data *data)
{
__le16 status;
int ret;
@@ -426,7 +424,7 @@
return le16_to_cpu(status);
}
-static int ltr501_read_intr_prst(struct ltr501_data *data,
+static int ltr501_read_intr_prst(const struct ltr501_data *data,
enum iio_chan_type type,
int *val2)
{
@@ -723,7 +721,7 @@
return -EINVAL;
}
-static int ltr501_get_gain_index(struct ltr501_gain *gain, int size,
+static int ltr501_get_gain_index(const struct ltr501_gain *gain, int size,
int val, int val2)
{
int i;
@@ -855,14 +853,14 @@
return ret;
}
-static int ltr501_read_thresh(struct iio_dev *indio_dev,
+static int ltr501_read_thresh(const struct iio_dev *indio_dev,
const struct iio_chan_spec *chan,
enum iio_event_type type,
enum iio_event_direction dir,
enum iio_event_info info,
int *val, int *val2)
{
- struct ltr501_data *data = iio_priv(indio_dev);
+ const struct ltr501_data *data = iio_priv(indio_dev);
int ret, thresh_data;
switch (chan->type) {
@@ -1273,7 +1271,7 @@
if (mask & LTR501_STATUS_ALS_RDY) {
ret = regmap_bulk_read(data->regmap, LTR501_ALS_DATA1,
- (u8 *)als_buf, sizeof(als_buf));
+ als_buf, sizeof(als_buf));
if (ret < 0)
goto done;
if (test_bit(0, indio_dev->active_scan_mask))
@@ -1372,7 +1370,7 @@
}
}
-static struct regmap_config ltr501_regmap_config = {
+static const struct regmap_config ltr501_regmap_config = {
.name = LTR501_REGMAP_NAME,
.reg_bits = 8,
.val_bits = 8,
@@ -1492,7 +1490,6 @@
if ((partid >> 4) != data->chip_info->partid)
return -ENODEV;
- indio_dev->dev.parent = &client->dev;
indio_dev->info = data->chip_info->info;
indio_dev->channels = data->chip_info->channels;
indio_dev->num_channels = data->chip_info->no_channels;
--
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