diff options
| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2024-12-24 20:06:00 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-01-09 23:16:36 +0300 |
| commit | b2fac3192919dd07e7ce30558e34abd7e07dde77 (patch) | |
| tree | 9006263bc33a6aafa027b41bed4a88e5de6e53bc | |
| parent | 1a206344218cc15ad8f321e3abab3f3d36ab639f (diff) | |
| download | linux-b2fac3192919dd07e7ce30558e34abd7e07dde77.tar.xz | |
spi: spi-ti-qspi: Support per spi-mem operation frequency switches
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>
| -rw-r--r-- | drivers/spi/spi-ti-qspi.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c index 9122350402b5..49516fee74b0 100644 --- a/drivers/spi/spi-ti-qspi.c +++ b/drivers/spi/spi-ti-qspi.c @@ -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; |