linux-kernel - [PATCH v2 7/8] iio: adc: ad7124: add disable

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Message-ID: <20220318162722.51215-8-alexandru.tachici@analog.com>
Date:   Fri, 18 Mar 2022 18:27:21 +0200
From:   <alexandru.tachici@...log.com>
To:     <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <jic23@...nel.org>,
        Alexandru Tachici <alexandru.tachici@...log.com>
Subject: [PATCH v2 7/8] iio: adc: ad7124: add disable_all() callback

From: Alexandru Tachici <alexandru.tachici@...log.com>

Add the disable all callback to the ad_sigma_delta_info struct.

Signed-off-by: Alexandru Tachici <alexandru.tachici@...log.com>
---
 drivers/iio/adc/ad7124.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c
index 782b7cdd8ebe..3214079ff05f 100644
--- a/drivers/iio/adc/ad7124.c
+++ b/drivers/iio/adc/ad7124.c
@@ -524,9 +524,25 @@ static int ad7124_append_status(struct ad_sigma_delta *sd, bool append)
 	return ad_sd_write_reg(&st->sd, AD7124_ADC_CONTROL, 2, st->adc_control);
 }
 
+static int ad7124_disable_all(struct ad_sigma_delta *sd)
+{
+	struct ad7124_state *st = container_of(sd, struct ad7124_state, sd);
+	int ret;
+	int i;
+
+	for (i = 0; i < st->num_channels; i++) {
+		ret = ad7124_spi_write_mask(st, AD7124_CHANNEL(i), AD7124_CHANNEL_EN_MSK, 0, 2);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
 static const struct ad_sigma_delta_info ad7124_sigma_delta_info = {
 	.set_channel = ad7124_set_channel,
 	.append_status = ad7124_append_status,
+	.disable_all = ad7124_disable_all,
 	.set_mode = ad7124_set_mode,
 	.has_registers = true,
 	.addr_shift = 0,
-- 
2.25.1