github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 01:53:29 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

spi: cadence-qspi: Support per spi-mem operation frequency switches

Browse Source 
Every ->exec_op() call correctly configures the spi bus speed to the
maximum allowed frequency for the memory using the constant spi default
parameter. Since we can now have per-operation constraints, let's use
the value that comes from the spi-mem operation structure instead. In
case there is no specific limitation for this operation, the default spi
device value will be given anyway.

The per-operation frequency capability is thus advertised to the spi-mem
core.

Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://patch.msgid.link/20241224-winbond-6-11-rc1-quad-support-v2-6-ad218dbc406f@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Miquel Raynal 2024-12-24 18:05:51 +01:00 committed by Mark Brown
parent 5baa189789
commit 06e9f5a1f6
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/spi/spi-cadence-quadspi.c
View File

@ -1409,7 +1409,7 @@ static int cqspi_mem_process(struct spi_mem *mem, const struct spi_mem_op *op)
struct cqspi_flash_pdata *f_pdata;
f_pdata = &cqspi->f_pdata[spi_get_chipselect(mem->spi, 0)];
cqspi_configure(f_pdata, mem->spi->max_speed_hz);
cqspi_configure(f_pdata, op->max_freq);
if (op->data.dir == SPI_MEM_DATA_IN && op->data.buf.in) {
/*
@ -1658,6 +1658,7 @@ static const struct spi_controller_mem_ops cqspi_mem_ops = {
static const struct spi_controller_mem_caps cqspi_mem_caps = {
.dtr = true,
.per_op_freq = true,
};
static int cqspi_setup_flash(struct cqspi_st *cqspi)