diff options
| author |   Miquel Raynal <miquel.raynal@bootlin.com> | 2024-12-24 18:05:55 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2025-01-09 20:16:31 +0000 |
| commit | 13fd04b53053bbfa741a0f2a781837ab80e485f6 (patch) | |
| tree | a17bf14a9832450dff01d74547cfdfb6bf88a11c | |
| parent | spi: microchip-core-qspi: Support per spi-mem operation frequency switches (diff) | |
| download | wireguard-linux-13fd04b53053bbfa741a0f2a781837ab80e485f6.tar.xz wireguard-linux-13fd04b53053bbfa741a0f2a781837ab80e485f6.zip | |
spi: mt65xx: 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.
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://patch.msgid.link/20241224-winbond-6-11-rc1-quad-support-v2-10-ad218dbc406f@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/spi/spi-mt65xx.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c index 85f3bafc975d..197bf2dbe5de 100644 --- a/drivers/spi/spi-mt65xx.c +++ b/drivers/spi/spi-mt65xx.c @@ -961,7 +961,7 @@ static int mtk_spi_mem_exec_op(struct spi_mem *mem, mtk_spi_reset(mdata); mtk_spi_hw_init(mem->spi->controller, mem->spi); - mtk_spi_prepare_transfer(mem->spi->controller, mem->spi->max_speed_hz); + mtk_spi_prepare_transfer(mem->spi->controller, op->max_freq); reg_val = readl(mdata->base + SPI_CFG3_IPM_REG); /* opcode byte len */ @@ -1122,6 +1122,10 @@ static const struct spi_controller_mem_ops mtk_spi_mem_ops = { .exec_op = mtk_spi_mem_exec_op, }; +static const struct spi_controller_mem_caps mtk_spi_mem_caps = { + .per_op_freq = true, +}; + static int mtk_spi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -1160,6 +1164,7 @@ static int mtk_spi_probe(struct platform_device *pdev) if (mdata->dev_comp->ipm_design) { mdata->dev = dev; host->mem_ops = &mtk_spi_mem_ops; + host->mem_caps = &mtk_spi_mem_caps; init_completion(&mdata->spimem_done); } |