This functionality is not used by the IIO subsystem. Due
to removal of legacy API it can also be removed.
Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
---
drivers/iio/adc/twl4030-madc.c | 70 ----------------------------------------
include/linux/i2c/twl4030-madc.h | 1 -
2 files changed, 71 deletions(-)
diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index be60f76d1a50..21df5b932bd1 100644
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -86,7 +86,6 @@ static int twl4030_madc_read(struct iio_dev *iio_dev,
req.channels = BIT(chan->channel);
req.active = false;
- req.func_cb = NULL;
req.type = TWL4030_MADC_WAIT;
req.raw = !(mask == IIO_CHAN_INFO_PROCESSED);
req.do_avg = (mask == IIO_CHAN_INFO_AVERAGE_RAW);
@@ -343,37 +342,6 @@ static int twl4030_madc_read_channels(struct twl4030_madc_data *madc,
}
/*
- * Enables irq.
- * @madc - pointer to twl4030_madc_data struct
- * @id - irq number to be enabled
- * can take one of TWL4030_MADC_RT, TWL4030_MADC_SW1, TWL4030_MADC_SW2
- * corresponding to RT, SW1, SW2 conversion requests.
- * If the i2c read fails it returns an error else returns 0.
- */
-static int twl4030_madc_enable_irq(struct twl4030_madc_data *madc, u8 id)
-{
- u8 val;
- int ret;
-
- ret = twl_i2c_read_u8(TWL4030_MODULE_MADC, &val, madc->imr);
- if (ret) {
- dev_err(madc->dev, "unable to read imr register 0x%X\n",
- madc->imr);
- return ret;
- }
-
- val &= ~(1 << id);
- ret = twl_i2c_write_u8(TWL4030_MODULE_MADC, val, madc->imr);
- if (ret) {
- dev_err(madc->dev,
- "unable to write imr register 0x%X\n", madc->imr);
- return ret;
- }
-
- return 0;
-}
-
-/*
* Disables irq.
* @madc - pointer to twl4030_madc_data struct
* @id - irq number to be disabled
@@ -442,11 +410,6 @@ static irqreturn_t twl4030_madc_threaded_irq_handler(int irq, void *_madc)
/* Read results */
len = twl4030_madc_read_channels(madc, method->rbase,
r->channels, r->rbuf, r->raw);
- /* Return results to caller */
- if (r->func_cb != NULL) {
- r->func_cb(len, r->channels, r->rbuf);
- r->func_cb = NULL;
- }
/* Free request */
r->result_pending = 0;
r->active = 0;
@@ -468,11 +431,6 @@ static irqreturn_t twl4030_madc_threaded_irq_handler(int irq, void *_madc)
/* Read results */
len = twl4030_madc_read_channels(madc, method->rbase,
r->channels, r->rbuf, r->raw);
- /* Return results to caller */
- if (r->func_cb != NULL) {
- r->func_cb(len, r->channels, r->rbuf);
- r->func_cb = NULL;
- }
/* Free request */
r->result_pending = 0;
r->active = 0;
@@ -482,23 +440,6 @@ static irqreturn_t twl4030_madc_threaded_irq_handler(int irq, void *_madc)
return IRQ_HANDLED;
}
-static int twl4030_madc_set_irq(struct twl4030_madc_data *madc,
- struct twl4030_madc_request *req)
-{
- struct twl4030_madc_request *p;
- int ret;
-
- p = &madc->requests[req->method];
- memcpy(p, req, sizeof(*req));
- ret = twl4030_madc_enable_irq(madc, req->method);
- if (ret < 0) {
- dev_err(madc->dev, "enable irq failed!!\n");
- return ret;
- }
-
- return 0;
-}
-
/*
* Function which enables the madc conversion
* by writing to the control register.
@@ -607,17 +548,6 @@ static int twl4030_madc_conversion(struct twl4030_madc_request *req)
goto out;
}
}
- if (req->type == TWL4030_MADC_IRQ_ONESHOT && req->func_cb != NULL) {
- ret = twl4030_madc_set_irq(twl4030_madc, req);
- if (ret < 0)
- goto out;
- ret = twl4030_madc_start_conversion(twl4030_madc, req->method);
- if (ret < 0)
- goto out;
- twl4030_madc->requests[req->method].active = 1;
- ret = 0;
- goto out;
- }
/* With RT method we should not be here anymore */
if (req->method == TWL4030_MADC_RT) {
ret = -EINVAL;
diff --git a/include/linux/i2c/twl4030-madc.h b/include/linux/i2c/twl4030-madc.h
index f395700fb933..34e94747b61e 100644
--- a/include/linux/i2c/twl4030-madc.h
+++ b/include/linux/i2c/twl4030-madc.h
@@ -51,7 +51,6 @@ struct twl4030_madc_request {
bool result_pending;
bool raw;
int rbuf[TWL4030_MADC_MAX_CHANNELS];
- void (*func_cb)(int len, int channels, int *buf);
};
enum conversion_methods {
--
2.11.0
--
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