linux-kernel - [PATCH v3 3/6] iio: adc: ad4695: use IIO_DECLARE_DMA_BUFFER_WITH

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Message-Id: <20250425-iio-introduce-iio_declare_buffer_with_ts-v3-3-f12df1bff248@baylibre.com>
Date: Fri, 25 Apr 2025 16:08:45 -0500
From: David Lechner <dlechner@...libre.com>
To: Jonathan Cameron <jic23@...nel.org>, 
 David Lechner <dlechner@...libre.com>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Andy Shevchenko <andy@...nel.org>, Lars-Peter Clausen <lars@...afoo.de>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Eugen Hristev <eugen.hristev@...aro.org>, 
 Nicolas Ferre <nicolas.ferre@...rochip.com>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v3 3/6] iio: adc: ad4695: use
 IIO_DECLARE_DMA_BUFFER_WITH_TS

Use IIO_DECLARE_DMA_BUFFER_WITH_TS() to declare the buffer that gets
used with iio_push_to_buffers_with_ts(). This makes the code a bit
easier to read and understand.

Signed-off-by: David Lechner <dlechner@...libre.com>
---
 drivers/iio/adc/ad4695.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iio/adc/ad4695.c b/drivers/iio/adc/ad4695.c
index 0c633d43e480d5404074e9fa35f1d330b448f0a2..992abf6c63b51dee222caf624e172455fb9b9900 100644
--- a/drivers/iio/adc/ad4695.c
+++ b/drivers/iio/adc/ad4695.c
@@ -160,8 +160,7 @@ struct ad4695_state {
 	struct spi_transfer buf_read_xfer[AD4695_MAX_CHANNELS * 2 + 3];
 	struct spi_message buf_read_msg;
 	/* Raw conversion data received. */
-	u16 buf[ALIGN((AD4695_MAX_CHANNELS + 1) * sizeof(u16),
-		      sizeof(s64)) + sizeof(s64)] __aligned(IIO_DMA_MINALIGN);
+	IIO_DECLARE_DMA_BUFFER_WITH_TS(u16, buf, AD4695_MAX_CHANNELS + 1);
 	u16 raw_data;
 	/* Commands to send for single conversion. */
 	u16 cnv_cmd;

-- 
2.43.0