From 08f87f769b595151be1afeff53e144f543faa614 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 06 Dec 2023 09:51:13 +0000
Subject: [PATCH] add dts config
---
kernel/drivers/iio/potentiometer/tpl0102.c | 43 +++++++++++++++++++++++++++++++------------
1 files changed, 31 insertions(+), 12 deletions(-)
diff --git a/kernel/drivers/iio/potentiometer/tpl0102.c b/kernel/drivers/iio/potentiometer/tpl0102.c
index ca1cce5..d996dc3 100644
--- a/kernel/drivers/iio/potentiometer/tpl0102.c
+++ b/kernel/drivers/iio/potentiometer/tpl0102.c
@@ -15,7 +15,7 @@
struct tpl0102_cfg {
int wipers;
- int max_pos;
+ int avail[3];
int kohms;
};
@@ -28,16 +28,16 @@
static const struct tpl0102_cfg tpl0102_cfg[] = {
/* on-semiconductor parts */
- [CAT5140_503] = { .wipers = 1, .max_pos = 256, .kohms = 50, },
- [CAT5140_104] = { .wipers = 1, .max_pos = 256, .kohms = 100, },
+ [CAT5140_503] = { .wipers = 1, .avail = { 0, 1, 255 }, .kohms = 50, },
+ [CAT5140_104] = { .wipers = 1, .avail = { 0, 1, 255 }, .kohms = 100, },
/* ti parts */
- [TPL0102_104] = { .wipers = 2, .max_pos = 256, .kohms = 100 },
- [TPL0401_103] = { .wipers = 1, .max_pos = 128, .kohms = 10, },
+ [TPL0102_104] = { .wipers = 2, .avail = { 0, 1, 255 }, .kohms = 100 },
+ [TPL0401_103] = { .wipers = 1, .avail = { 0, 1, 127 }, .kohms = 10, },
};
struct tpl0102_data {
struct regmap *regmap;
- unsigned long devid;
+ const struct tpl0102_cfg *cfg;
};
static const struct regmap_config tpl0102_regmap_config = {
@@ -52,6 +52,7 @@
.channel = (ch), \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
+ .info_mask_separate_available = BIT(IIO_CHAN_INFO_RAW), \
}
static const struct iio_chan_spec tpl0102_channels[] = {
@@ -72,9 +73,27 @@
return ret ? ret : IIO_VAL_INT;
}
case IIO_CHAN_INFO_SCALE:
- *val = 1000 * tpl0102_cfg[data->devid].kohms;
- *val2 = tpl0102_cfg[data->devid].max_pos;
+ *val = 1000 * data->cfg->kohms;
+ *val2 = data->cfg->avail[2] + 1;
return IIO_VAL_FRACTIONAL;
+ }
+
+ return -EINVAL;
+}
+
+static int tpl0102_read_avail(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ const int **vals, int *type, int *length,
+ long mask)
+{
+ struct tpl0102_data *data = iio_priv(indio_dev);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ *length = ARRAY_SIZE(data->cfg->avail);
+ *vals = data->cfg->avail;
+ *type = IIO_VAL_INT;
+ return IIO_AVAIL_RANGE;
}
return -EINVAL;
@@ -89,7 +108,7 @@
if (mask != IIO_CHAN_INFO_RAW)
return -EINVAL;
- if (val >= tpl0102_cfg[data->devid].max_pos || val < 0)
+ if (val > data->cfg->avail[2] || val < 0)
return -EINVAL;
return regmap_write(data->regmap, chan->channel, val);
@@ -97,6 +116,7 @@
static const struct iio_info tpl0102_info = {
.read_raw = tpl0102_read_raw,
+ .read_avail = tpl0102_read_avail,
.write_raw = tpl0102_write_raw,
};
@@ -113,17 +133,16 @@
data = iio_priv(indio_dev);
i2c_set_clientdata(client, indio_dev);
- data->devid = id->driver_data;
+ data->cfg = &tpl0102_cfg[id->driver_data];
data->regmap = devm_regmap_init_i2c(client, &tpl0102_regmap_config);
if (IS_ERR(data->regmap)) {
dev_err(dev, "regmap initialization failed\n");
return PTR_ERR(data->regmap);
}
- indio_dev->dev.parent = dev;
indio_dev->info = &tpl0102_info;
indio_dev->channels = tpl0102_channels;
- indio_dev->num_channels = tpl0102_cfg[data->devid].wipers;
+ indio_dev->num_channels = data->cfg->wipers;
indio_dev->name = client->name;
return devm_iio_device_register(dev, indio_dev);
--
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