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spi: spi-ti-qspi: 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.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://patch.msgid.link/20241224-winbond-6-11-rc1-quad-support-v2-15-ad218dbc406f@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Miquel Raynal
2024-12-24 18:06:00 +01:00
committed by Mark Brown
parent 1a20634421
commit b2fac31929
1 changed files with 6 additions and 1 deletions
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7
drivers/spi/spi-ti-qspi.c
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@@ -623,7 +623,7 @@ static int ti_qspi_exec_mem_op(struct spi_mem *mem,
mutex_lock(&qspi->list_lock);
if (!qspi->mmap_enabled || qspi->current_cs != spi_get_chipselect(mem->spi, 0)) {
ti_qspi_setup_clk(qspi, mem->spi->max_speed_hz);
ti_qspi_setup_clk(qspi, op->max_freq);
ti_qspi_enable_memory_map(mem->spi);
}
ti_qspi_setup_mmap_read(mem->spi, op->cmd.opcode, op->data.buswidth,
@@ -658,6 +658,10 @@ static const struct spi_controller_mem_ops ti_qspi_mem_ops = {
.adjust_op_size = ti_qspi_adjust_op_size,
};
static const struct spi_controller_mem_caps ti_qspi_mem_caps = {
.per_op_freq = true,
};
static int ti_qspi_start_transfer_one(struct spi_controller *host,
struct spi_message *m)
{
@@ -777,6 +781,7 @@ static int ti_qspi_probe(struct platform_device *pdev)
host->bits_per_word_mask = SPI_BPW_MASK(32) | SPI_BPW_MASK(16) |
SPI_BPW_MASK(8);
host->mem_ops = &ti_qspi_mem_ops;
host->mem_caps = &ti_qspi_mem_caps;
if (!of_property_read_u32(np, "num-cs", &num_cs))
host->num_chipselect = num_cs;