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Date: Sun, 5 Jul 2026 00:48:32 +0100
From: Jonathan Cameron <jic23@kernel.org>
To: Marcelo Schmitt <marcelo.schmitt@analog.com>
Cc: <linux-iio@vger.kernel.org>, <devicetree@vger.kernel.org>,
 <linux-kernel@vger.kernel.org>, <nuno.sa@analog.com>,
 <Michael.Hennerich@analog.com>, <dlechner@baylibre.com>, <andy@kernel.org>,
 <robh@kernel.org>, <krzk+dt@kernel.org>, <conor+dt@kernel.org>,
 <julianbraha@gmail.com>, <marcelo.schmitt1@gmail.com>
Subject: Re: [PATCH v5 3/4] iio: adc: ltc2378: Enable high-speed data
 capture
Message-ID: <20260705004832.60661c48@jic23-huawei>
In-Reply-To: <e285c16edf2e5483effad96a852a2ae110a27899.1783028033.git.marcelo.schmitt@analog.com>
References: <cover.1783028033.git.marcelo.schmitt@analog.com>
	<e285c16edf2e5483effad96a852a2ae110a27899.1783028033.git.marcelo.schmitt@analog.com>
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On Thu, 2 Jul 2026 18:45:49 -0300
Marcelo Schmitt <marcelo.schmitt@analog.com> wrote:

> Make use of SPI transfer offloading to speed up data capture, enabling data
> acquisition at faster sample rates (up to 2 MSPS).
> 
> Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>

> diff --git a/drivers/iio/adc/ltc2378.c b/drivers/iio/adc/ltc2378.c
> index b5cf2e974dac..b25602d91bbe 100644
> --- a/drivers/iio/adc/ltc2378.c
> +++ b/drivers/iio/adc/ltc2378.c
> @@ -12,16 +12,28 @@
>  #include <linux/delay.h>
>  #include <linux/err.h>
>  #include <linux/gpio/consumer.h>
> +#include <linux/math64.h>
>  #include <linux/mod_devicetable.h>
>  #include <linux/module.h>
>  #include <linux/regulator/consumer.h>
> +#include <linux/pwm.h>
>  #include <linux/spi/spi.h>
> +#include <linux/spi/offload/consumer.h>
> +#include <linux/spi/offload/types.h>
> +#include <linux/time64.h>
>  #include <linux/types.h>
>  #include <linux/units.h>
>  
> +#include <linux/iio/buffer.h>
> +#include <linux/iio/buffer-dmaengine.h>
>  #include <linux/iio/iio.h>
> +#include <linux/iio/sysfs.h>
I'm probably missing something. Why this include?

Jonathan