From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Jonathan Cameron <jic23@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
Nicolas Ferre <nicolas.ferre@microchip.com>,
Ludovic Desroches <ludovic.desroches@microchip.com>,
linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Subject: [PATCH v3 07/10] iio: adc: at91_adc: merge at91_adc_probe_dt back in at91_adc_probe
Date: Sat, 28 Nov 2020 23:28:15 +0100 [thread overview]
Message-ID: <20201128222818.1910764-8-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20201128222818.1910764-1-alexandre.belloni@bootlin.com>
at91_adc_probe_dt is now small enough to be merged back in at91_adc_probe.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Ludovic Desroches <ludovic.desroches@microchip.com>
---
drivers/iio/adc/at91_adc.c | 115 ++++++++++++++++---------------------
1 file changed, 48 insertions(+), 67 deletions(-)
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index d746a18143cd..70750abb5dea 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -831,69 +831,6 @@ static int at91_adc_probe_dt_ts(struct device_node *node,
}
}
-static int at91_adc_probe_dt(struct iio_dev *idev,
- struct platform_device *pdev)
-{
- struct at91_adc_state *st = iio_priv(idev);
- struct device_node *node = pdev->dev.of_node;
- int ret;
- u32 prop;
- char *s;
-
- st->caps = of_device_get_match_data(&pdev->dev);
-
- st->use_external = of_property_read_bool(node, "atmel,adc-use-external-triggers");
-
- if (of_property_read_u32(node, "atmel,adc-channels-used", &prop)) {
- dev_err(&idev->dev, "Missing adc-channels-used property in the DT.\n");
- ret = -EINVAL;
- goto error_ret;
- }
- st->channels_mask = prop;
-
- st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode");
-
- if (of_property_read_u32(node, "atmel,adc-startup-time", &prop)) {
- dev_err(&idev->dev, "Missing adc-startup-time property in the DT.\n");
- ret = -EINVAL;
- goto error_ret;
- }
- st->startup_time = prop;
-
- prop = 0;
- of_property_read_u32(node, "atmel,adc-sample-hold-time", &prop);
- st->sample_hold_time = prop;
-
- if (of_property_read_u32(node, "atmel,adc-vref", &prop)) {
- dev_err(&idev->dev, "Missing adc-vref property in the DT.\n");
- ret = -EINVAL;
- goto error_ret;
- }
- st->vref_mv = prop;
-
- st->res = st->caps->high_res_bits;
- if (st->caps->low_res_bits &&
- !of_property_read_string(node, "atmel,adc-use-res", (const char **)&s)
- && !strcmp(s, "lowres"))
- st->res = st->caps->low_res_bits;
-
- dev_info(&idev->dev, "Resolution used: %u bits\n", st->res);
-
- st->registers = &st->caps->registers;
- st->num_channels = st->caps->num_channels;
-
- /* Check if touchscreen is supported. */
- if (st->caps->has_ts)
- return at91_adc_probe_dt_ts(node, st, &idev->dev);
- else
- dev_info(&idev->dev, "not support touchscreen in the adc compatible string.\n");
-
- return 0;
-
-error_ret:
- return ret;
-}
-
static const struct iio_info at91_adc_info = {
.read_raw = &at91_adc_read_raw,
};
@@ -1059,10 +996,12 @@ static void at91_ts_unregister(struct at91_adc_state *st)
static int at91_adc_probe(struct platform_device *pdev)
{
unsigned int prsc, mstrclk, ticks, adc_clk, adc_clk_khz, shtim;
+ struct device_node *node = pdev->dev.of_node;
int ret;
struct iio_dev *idev;
struct at91_adc_state *st;
- u32 reg;
+ u32 reg, prop;
+ char *s;
idev = devm_iio_device_alloc(&pdev->dev, sizeof(struct at91_adc_state));
if (!idev)
@@ -1070,9 +1009,51 @@ static int at91_adc_probe(struct platform_device *pdev)
st = iio_priv(idev);
- ret = at91_adc_probe_dt(idev, pdev);
- if (ret)
- return ret;
+ st->caps = of_device_get_match_data(&pdev->dev);
+
+ st->use_external = of_property_read_bool(node, "atmel,adc-use-external-triggers");
+
+ if (of_property_read_u32(node, "atmel,adc-channels-used", &prop)) {
+ dev_err(&idev->dev, "Missing adc-channels-used property in the DT.\n");
+ return -EINVAL;
+ }
+ st->channels_mask = prop;
+
+ st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode");
+
+ if (of_property_read_u32(node, "atmel,adc-startup-time", &prop)) {
+ dev_err(&idev->dev, "Missing adc-startup-time property in the DT.\n");
+ return -EINVAL;
+ }
+ st->startup_time = prop;
+
+ prop = 0;
+ of_property_read_u32(node, "atmel,adc-sample-hold-time", &prop);
+ st->sample_hold_time = prop;
+
+ if (of_property_read_u32(node, "atmel,adc-vref", &prop)) {
+ dev_err(&idev->dev, "Missing adc-vref property in the DT.\n");
+ return -EINVAL;
+ }
+ st->vref_mv = prop;
+
+ st->res = st->caps->high_res_bits;
+ if (st->caps->low_res_bits &&
+ !of_property_read_string(node, "atmel,adc-use-res", (const char **)&s)
+ && !strcmp(s, "lowres"))
+ st->res = st->caps->low_res_bits;
+
+ dev_info(&idev->dev, "Resolution used: %u bits\n", st->res);
+
+ st->registers = &st->caps->registers;
+ st->num_channels = st->caps->num_channels;
+
+ /* Check if touchscreen is supported. */
+ if (st->caps->has_ts) {
+ ret = at91_adc_probe_dt_ts(node, st, &idev->dev);
+ if (ret)
+ return ret;
+ }
platform_set_drvdata(pdev, idev);
--
2.28.0
next prev parent reply other threads:[~2020-11-28 22:29 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-28 22:28 [PATCH v3 00/10] iio: adc: at91_adc: cleanup DT bindings Alexandre Belloni
2020-11-28 22:28 ` [PATCH v3 01/10] iio: adc: at91_adc: remove at91_adc_ids Alexandre Belloni
2020-11-28 22:28 ` [PATCH v3 02/10] iio: adc: at91_adc: rework resolution selection Alexandre Belloni
2020-11-28 22:28 ` [PATCH v3 03/10] dt-bindings:iio:adc:remove atmel,adc-res and atmel,adc-res-names Alexandre Belloni
2020-12-08 21:35 ` [PATCH v3 03/10] dt-bindings:iio:adc:remove atmel, adc-res and atmel, adc-res-names Rob Herring
2020-11-28 22:28 ` [PATCH v3 04/10] dt-bindings:iio:adc:atmel,sama9260-adc: conversion to yaml from at91_adc.txt Alexandre Belloni
2020-11-29 12:01 ` Jonathan Cameron
2020-11-28 22:28 ` [PATCH v3 05/10] iio: adc: at91_adc: rework trigger definition Alexandre Belloni
2020-11-28 22:28 ` [PATCH v3 06/10] dt-bindings:iio:adc:remove triggers Alexandre Belloni
2020-11-28 22:28 ` Alexandre Belloni [this message]
2020-11-28 22:28 ` [PATCH v3 08/10] ARM: dts: at91: sama5d3: use proper ADC compatible Alexandre Belloni
2020-11-28 22:28 ` [PATCH v3 09/10] ARM: dts: at91: at91sam9rl: fix ADC triggers Alexandre Belloni
2020-11-28 22:28 ` [PATCH v3 10/10] ARM: dts: at91: remove deprecated ADC properties Alexandre Belloni
2020-11-29 13:01 ` [PATCH v3 00/10] iio: adc: at91_adc: cleanup DT bindings Jonathan Cameron
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