Unverified Commit a4f8e70d authored by Tianyu Xu's avatar Tianyu Xu Committed by Mark Brown
Browse files

spi: spi-mem: add spi_mem_adjust_op_freq() in spi_mem_supports_op() 



The function spi_mem_adjust_op_freq() within spi_mem_exec_op() adjusts
the op->max_freq, which will informs the SPI controller of the maximum
frequency for each operation. This adjustment is based on combined
information from the SPI device and the board's wiring conditions.
Similarly, spi_mem_supports_op() will check the capabilities of the SPI
controller. It also requires the combined information before it can
accurately determine whether the SPI controller supports a given operation.

Signed-off-by: default avatarTianyu Xu <tianyxu@cisco.com>
Reviewed-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://patch.msgid.link/20250805015403.43928-1-tianyxu@cisco.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 72332439

drivers/spi/spi-mem.c

+3 −0
Original line number Diff line number Diff line
@@ -265,6 +265,9 @@ static bool spi_mem_internal_supports_op(struct spi_mem *mem, 
 */

bool spi_mem_supports_op(struct spi_mem *mem, const struct spi_mem_op *op)

{

	/* Make sure the operation frequency is correct before going futher */

	spi_mem_adjust_op_freq(mem, (struct spi_mem_op *)op);



	if (spi_mem_check_op(op))

		return false;