spi: dw: Introduce enhanced single/dual/quad/octal spi

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If the spi transfer is using enhanced single/dual/quad/octal spi mode,
then we need to update the SPI_CTRLR0 register. The SPI_CTRLR0 register
will be updated in dw_spi_update_config() via the values in
dw_spi_enh_cfg.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@sifive.com>
Co-developed-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Link: https://patch.msgid.link/20260803124044.156998-7-changhuang.liang@starfivetech.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Sudip Mukherjee 2026-08-03 05:40:39 -07:00 • committed by Mark Brown

parent 8678095362

commit 4cd882e1da

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87

drivers/spi/spi-dw-core.c

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9

drivers/spi/spi-dw.h

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