spi: cadence-quadspi: Disable the DAC for Intel LGM SoC

Browse source

On Intel Lightning Mountain(LGM) SoCs QSPI controller do not use
Direct Access Controller(DAC).

This patch adds a quirk to disable the Direct Access Controller
for data transfer instead it uses indirect data transfe

DAC bit resets to 1 so there is no need to explicitly set it.

Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
Link: https://lore.kernel.org/r/20201124041840.31066-3-vadivel.muruganx.ramuthevar@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Ramuthevar Vadivel Murugan 2020-11-24 12:18:37 +08:00 • committed by Mark Brown

parent ab2d28750a

commit ad2775dc3f

No known key found for this signature in database

GPG key ID: 24D68B725D5487D0

1 changed files with 11 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

15

drivers/spi/spi-cadence-quadspi.c

View file