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spi: spi-uclass: Read chipselect and restrict capabilities

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Read chipselect properties from DT which are populated using 'reg'
property and save it in plat->cs[] array for later use.

Also read multi chipselect capability which is used for
parallel-memories and return errors if they are passed on using DT but
driver is not capable of handling it.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
This commit is contained in:
Venkatesh Yadav Abbarapu
2024-09-26 10:25:05 +05:30
committed by Tom Rini
parent c480ec2c45
commit 34da258bb0
41 changed files with 177 additions and 151 deletions
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4
drivers/spi/stm32_spi.c
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@@ -434,7 +434,7 @@ static int stm32_spi_xfer(struct udevice *slave, unsigned int bitlen,
slave_plat = dev_get_parent_plat(slave);
if (flags & SPI_XFER_BEGIN)
stm32_spi_set_cs(bus, slave_plat->cs, false);
stm32_spi_set_cs(bus, slave_plat->cs[0], false);
/* Be sure to have data in fifo before starting data transfer */
if (priv->tx_buf)
@@ -485,7 +485,7 @@ static int stm32_spi_xfer(struct udevice *slave, unsigned int bitlen,
stm32_spi_stopxfer(bus);
if (flags & SPI_XFER_END)
stm32_spi_set_cs(bus, slave_plat->cs, true);
stm32_spi_set_cs(bus, slave_plat->cs[0], true);
return xfer_status;
}