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iio: temperature: ltc2983: make bulk write buffer DMA-safe
[ Upstream commit 5e01762 ] regmap_bulk_write() does not guarantee implicit DMA-safety, even though the current implementation duplicates the given buffer. Do not rely on it. Fixes: f110f31 ("iio: temperature: Add support for LTC2983") Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> Link: https://lore.kernel.org/r/20221103130041.2153295-2-demonsingur@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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