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spi: nxp-fspi: Support per spi-mem operation frequency switches

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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.

Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://patch.msgid.link/20241224-winbond-6-11-rc1-quad-support-v2-12-ad218dbc406f@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Miquel Raynal 2024-12-24 18:05:57 +01:00 committed by Mark Brown
parent 67707cb094
commit 26851cf65f
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GPG Key ID: 24D68B725D5487D0
1 changed files with 9 additions and 3 deletions
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12
drivers/spi/spi-nxp-fspi.c
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@ -705,9 +705,10 @@ static void nxp_fspi_dll_calibration(struct nxp_fspi *f)
* Value for rest of the CS FLSHxxCR0 register would be zero. * Value for rest of the CS FLSHxxCR0 register would be zero.
* *
*/ */
static void nxp_fspi_select_mem(struct nxp_fspi *f, struct spi_device *spi) static void nxp_fspi_select_mem(struct nxp_fspi *f, struct spi_device *spi,
const struct spi_mem_op *op)
{ {
unsigned long rate = spi->max_speed_hz; unsigned long rate = op->max_freq;
int ret; int ret;
uint64_t size_kb; uint64_t size_kb;
@ -931,7 +932,7 @@ static int nxp_fspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
FSPI_STS0_ARB_IDLE, 1, POLL_TOUT, true); FSPI_STS0_ARB_IDLE, 1, POLL_TOUT, true);
WARN_ON(err); WARN_ON(err);
nxp_fspi_select_mem(f, mem->spi); nxp_fspi_select_mem(f, mem->spi, op);
nxp_fspi_prepare_lut(f, op); nxp_fspi_prepare_lut(f, op);
/* /*
@ -1149,6 +1150,10 @@ static const struct spi_controller_mem_ops nxp_fspi_mem_ops = {
.get_name = nxp_fspi_get_name, .get_name = nxp_fspi_get_name,
}; };
static const struct spi_controller_mem_caps nxp_fspi_mem_caps = {
.per_op_freq = true,
};
static int nxp_fspi_probe(struct platform_device *pdev) static int nxp_fspi_probe(struct platform_device *pdev)
{ {
struct spi_controller *ctlr; struct spi_controller *ctlr;
@ -1246,6 +1251,7 @@ static int nxp_fspi_probe(struct platform_device *pdev)
ctlr->bus_num = -1; ctlr->bus_num = -1;
ctlr->num_chipselect = NXP_FSPI_MAX_CHIPSELECT; ctlr->num_chipselect = NXP_FSPI_MAX_CHIPSELECT;
ctlr->mem_ops = &nxp_fspi_mem_ops; ctlr->mem_ops = &nxp_fspi_mem_ops;
ctlr->mem_caps = &nxp_fspi_mem_caps;
nxp_fspi_default_setup(f); nxp_fspi_default_setup(f);