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Mon, 28 Apr 2025 13:24:16 -0700 (PDT) From: David Lechner Date: Mon, 28 Apr 2025 15:23:09 -0500 Subject: [PATCH v4 7/7] iio: adc: at91-sama5d2: use IIO_DECLARE_BUFFER_WITH_TS Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250428-iio-introduce-iio_declare_buffer_with_ts-v4-7-6f7f6126f1cb@baylibre.com> References: <20250428-iio-introduce-iio_declare_buffer_with_ts-v4-0-6f7f6126f1cb@baylibre.com> In-Reply-To: <20250428-iio-introduce-iio_declare_buffer_with_ts-v4-0-6f7f6126f1cb@baylibre.com> To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Lars-Peter Clausen , Michael Hennerich , Eugen Hristev , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1676; i=dlechner@baylibre.com; h=from:subject:message-id; bh=0ZROZIYuD1zVkkOa3PNcABnV8cSDGoSdT6l8Emh427M=; b=owGbwMvMwMV46IwC43/G/gOMp9WSGDL4H9/qOSxxJUC0We2S07QzezJ67119YrJbTCBQWHfa3 IfLlnds6GQ0ZmFg5GKQFVNkeSNxc14SX/O1OTcyZsAMYmUCmcLAxSkAE1nZx8HQaj/NyyrO4M9V 286Ze+pFsrgZNzAE7LTuNWJ6If864qfJ1GWuMZfv5etfnO7+LHa/YPf0mp/1bKnWYSnie63ab2r 0xBkZWXdo5t3IqhA+uzThdzbzpxQPznV3+wJ+zHQRzp/qVf/qXOefRbnLtKzCTvyYlT6bx2G7ld vixFSLiz2dpro75BMesvzWquvbJ1nxeXli0kTNt+EMgTveSUnPkQoO0MiV5JI5m6e/4+OMlsDLp qa22oVqvRl8a0TrTJeJpfy1TZMOWlcpZnsot7lnhYS6QL5s0I2d3+Tca8qEZevC1nO4/D21WHVC aR2bhhHvi88S21yanvrbZayUYHweXnBlWt+GFWqm56QB X-Developer-Key: i=dlechner@baylibre.com; a=openpgp; fpr=8A73D82A6A1F509907F373881F8AF88C82F77C03 Use IIO_DECLARE_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 --- This is an alternative to [1]. [1]: https://lore.kernel.org/linux-iio/20250418-iio-prefer-aligned_s64-time= stamp-v1-2-4c6080710516@baylibre.com/ --- drivers/iio/adc/at91-sama5d2_adc.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama= 5d2_adc.c index 414610afcb2c4128a63cf76767803c32cb01ac5e..4ebaeb41aa4568e2461506471af= 0540af9d1a041 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -586,15 +586,6 @@ struct at91_adc_temp { u16 saved_oversampling; }; =20 -/* - * Buffer size requirements: - * No channels * bytes_per_channel(2) + timestamp bytes (8) - * Divided by 2 because we need half words. - * We assume 32 channels for now, has to be increased if needed. - * Nobody minds a buffer being too big. - */ -#define AT91_BUFFER_MAX_HWORDS ((32 * 2 + 8) / 2) - struct at91_adc_state { void __iomem *base; int irq; @@ -616,8 +607,8 @@ struct at91_adc_state { struct at91_adc_temp temp_st; struct iio_dev *indio_dev; struct device *dev; - /* Ensure naturally aligned timestamp */ - u16 buffer[AT91_BUFFER_MAX_HWORDS] __aligned(8); + /* We assume 32 channels for now, has to be increased if needed.*/ + IIO_DECLARE_BUFFER_WITH_TS(u16, buffer, 32); /* * lock to prevent concurrent 'single conversion' requests through * sysfs. --=20 2.43.0