Hi, I have a platform with a DesignWare SSI and I'm trying to use the dw_spi block using a GPIO for the chip select to workaround the problem of CS changing and the device losing state (we have a SPI flash attached), and I've found that using interrupt driven transfers, reading the SPI flash results in very few interrupts from the controller and a sluggish system (and no data from the flash).
However, I've found that removing the conditional transfer mode setting (effectively reverting commit 052dc7c45 [spi/dw_spi: conditional transfer mode changes]) allows everything to work fine by keeping the transfer mode to transmit+receive. Does anyone have any ideas on the best way to fix this? That code must have been added for a reason so perhaps it's just a quirk on our platform, but I'd be keen to know in what ways it's been tested before - afaict, no other in-tree platforms are using dw_spi with their own cs_control so it's difficult to know if perhaps these are all doing polled mode transfers. Thanks, Jamie ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ spi-devel-general mailing list spi-devel-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/spi-devel-general
