From b1d3a806630dbbf3b4d75a2e850adccf4f4439e7 Mon Sep 17 00:00:00 2001
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Date: Sun, 8 May 2022 18:55:48 +0100
Subject: [PATCH] iio: accel: sca3300: Fix alignment for DMA safety
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Git-commit: b1d3a806630dbbf3b4d75a2e850adccf4f4439e7
Patch-mainline: v6.0-rc1
References: git-fixes
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.
Fixes: 9cc9806e22178 ("iio: accel: Add driver for Murata SCA3300 accelerometer")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Tomas Melin <tomas.melin@vaisala.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-9-jic23@kernel.org
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/iio/accel/sca3300.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/accel/sca3300.c b/drivers/iio/accel/sca3300.c
index 861f6906beee..3c4827bfef53 100644
--- a/drivers/iio/accel/sca3300.c
+++ b/drivers/iio/accel/sca3300.c
@@ -196,7 +196,7 @@ struct sca3300_data {
s16 channels[4];
s64 ts __aligned(sizeof(s64));
} scan;
- u8 txbuf[4] ____cacheline_aligned;
+ u8 txbuf[4] __aligned(IIO_DMA_MINALIGN);
u8 rxbuf[4];
};
--
2.35.3