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spi: dw: Convert to using BITS_TO_BYTES() macro

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Since commit dd3e7cba16 ("ocfs2/dlm: move BITS_TO_BYTES() to bitops.h
for wider use") there is a generic helper available to calculate a number
of bytes needed to accommodate the specified number of bits. Let's use it
instead of the hard-coded DIV_ROUND_UP() macro function.

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20240424150657.9678-2-fancer.lancer@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Serge Semin 2024-04-24 18:06:42 +03:00 committed by Mark Brown
parent 6be871d5fd
commit 11ae2e63b2
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1 changed files with 2 additions and 4 deletions
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6
drivers/spi/spi-dw-core.c
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@ -6,6 +6,7 @@
*/
#include <linux/bitfield.h>
#include <linux/bitops.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/module.h>
@ -421,10 +422,7 @@ static int dw_spi_transfer_one(struct spi_controller *host,
int ret;
dws->dma_mapped = 0;
dws->n_bytes =
roundup_pow_of_two(DIV_ROUND_UP(transfer->bits_per_word,
BITS_PER_BYTE));
dws->n_bytes = roundup_pow_of_two(BITS_TO_BYTES(transfer->bits_per_word));
dws->tx = (void *)transfer->tx_buf;
dws->tx_len = transfer->len / dws->n_bytes;
dws->rx = transfer->rx_buf;