From: Artur Rojek <contact@artur-rojek.eu>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Paul Cercueil <paul@crapouillou.net>
Cc: linux-input@vger.kernel.org, devicetree@vger.kernel.org,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
Artur Rojek <contact@artur-rojek.eu>
Subject: [PATCH v2 1/5] IIO: Ingenic JZ47xx: Add xlate cb to retrieve correct channel idx
Date: Sun, 26 Jan 2020 17:12:32 +0100 [thread overview]
Message-ID: <20200126161236.63631-1-contact@artur-rojek.eu> (raw)
Provide an of_xlate callback in order to retrieve the correct channel
specifier index from the IIO channels array.
Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Tested-by: Paul Cercueil <paul@crapouillou.net>
---
Changes:
v2: no change
drivers/iio/adc/ingenic-adc.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/iio/adc/ingenic-adc.c b/drivers/iio/adc/ingenic-adc.c
index 39c0a609fc94..7a24bc1dabe1 100644
--- a/drivers/iio/adc/ingenic-adc.c
+++ b/drivers/iio/adc/ingenic-adc.c
@@ -383,6 +383,21 @@ static int ingenic_adc_read_raw(struct iio_dev *iio_dev,
}
}
+static int ingenic_adc_of_xlate(struct iio_dev *iio_dev,
+ const struct of_phandle_args *iiospec)
+{
+ int i;
+
+ if (!iiospec->args_count)
+ return -EINVAL;
+
+ for (i = 0; i < iio_dev->num_channels; ++i)
+ if (iio_dev->channels[i].channel == iiospec->args[0])
+ return i;
+
+ return -EINVAL;
+}
+
static void ingenic_adc_clk_cleanup(void *data)
{
clk_unprepare(data);
@@ -392,6 +407,7 @@ static const struct iio_info ingenic_adc_info = {
.write_raw = ingenic_adc_write_raw,
.read_raw = ingenic_adc_read_raw,
.read_avail = ingenic_adc_read_avail,
+ .of_xlate = ingenic_adc_of_xlate,
};
static const struct iio_chan_spec ingenic_channels[] = {
--
2.25.0
next reply other threads:[~2020-01-26 16:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-26 16:12 Artur Rojek [this message]
2020-01-26 16:12 ` [PATCH v2 2/5] dt-bindings: iio/adc: Add touchscreen idx for JZ47xx SoC ADC Artur Rojek
2020-01-26 16:12 ` [PATCH v2 3/5] IIO: Ingenic JZ47xx: Add touchscreen mode Artur Rojek
2020-02-02 14:53 ` Jonathan Cameron
2020-01-26 16:12 ` [PATCH v2 4/5] dt-bindings: input: Add docs for ADC driven joystick Artur Rojek
2020-01-27 14:26 ` Rob Herring
2020-03-01 12:07 ` Heiko Stuebner
2020-01-26 16:12 ` [PATCH v2 5/5] input: joystick: Add ADC attached joystick driver Artur Rojek
2020-02-02 14:58 ` Jonathan Cameron
2020-02-10 22:45 ` Paul Cercueil
2020-02-29 21:18 ` Heiko Stuebner
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