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Date: Fri, 17 Apr 2020 22:28:55 +0200 From: Artur Rojek <contact@...ur-rojek.eu> To: Dmitry Torokhov <dmitry.torokhov@...il.com>, Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, Jonathan Cameron <jic23@...nel.org>, Paul Cercueil <paul@...pouillou.net> Cc: Heiko Stuebner <heiko@...ech.de>, linux-input@...r.kernel.org, devicetree@...r.kernel.org, linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, Artur Rojek <contact@...ur-rojek.eu> Subject: [RESEND PATCH v5 1/5] IIO: Ingenic JZ47xx: Add xlate cb to retrieve correct channel idx 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@...ur-rojek.eu> Tested-by: Paul Cercueil <paul@...pouillou.net> --- Changes: v2-v5: 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[] = { -- 2.26.1
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