Unverified Commit 11ae2e63 authored by Serge Semin's avatar Serge Semin Committed by Mark Brown
Browse files

spi: dw: Convert to using BITS_TO_BYTES() macro 



Since commit dd3e7cba ("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: default avatarSerge Semin <fancer.lancer@gmail.com>
Reviewed-by: default avatarAndy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20240424150657.9678-2-fancer.lancer@gmail.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 6be871d5

drivers/spi/spi-dw-core.c

+2 −4
Original line number Diff line number Diff line
@@ -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;