[PATCH 0/2] spi: atmel-quadspi: Fix and add full CS delay support

From: Alexander Dahl
Date: Wed Sep 18 2024 - 04:28:07 EST


Hello everyone,

when testing on a SAM9X60 based board with an FPGA implementing a custom
SPI-MEM protocol, we found the need to fully control the delay settings
the atmel/microchip QSPI controller offers.

Greets
Alex

(series based on v6.11, tested on top of v6.6.44)

Cc: linux-spi@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx

Alexander Dahl (2):
spi: atmel-quadspi: Avoid overwriting delay register settings
spi: atmel-quadspi: Add cs_hold and cs_inactive setting support

drivers/spi/atmel-quadspi.c | 50 +++++++++++++++++++++++++++++--------
1 file changed, 40 insertions(+), 10 deletions(-)


base-commit: 98f7e32f20d28ec452afb208f9cffc08448a2652
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2.39.5