Hi Mark, > The goal is just to connect a GPIO (and GPIO controlled by any GPIO > controller) to the chip select of the device and make sure that the chip select output of the controller isn't routed anywhere where it'll do any harm. If you have an existing board where spi-dw native chip-select has been used instead of other independent gpios, than you can't use "gpio-cs" to re-own & control those chip-select, and has a potential tx-transaction-split problem that must be solved via the attached software patch. IMPORTANT - This email and any attachments is intended for the above named addressee(s), and may contain information which is confidential or privileged. If you are not the intended recipient, please inform the sender immediately and delete this email: you should not copy or use this e-mail for any purpose nor disclose its contents to any person.
Attachment:
0001-PATCH-Prevent-spi-dw-write-transaction-split.patch
Description: 0001-PATCH-Prevent-spi-dw-write-transaction-split.patch