linux-kernel - [PATCH 0/2] spi: cadence-quadspi: Fix random issues with Xilinx Versal DMA read

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Date:   Mon, 20 Mar 2023 15:29:29 +0530
From:   Sai Krishna Potthuri <sai.krishna.potthuri@....com>
To:     Mark Brown <broonie@...nel.org>
CC:     <linux-spi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <git@....com>, <saikrishna12468@...il.com>,
        Sai Krishna Potthuri <sai.krishna.potthuri@....com>
Subject: [PATCH 0/2] spi: cadence-quadspi: Fix random issues with Xilinx Versal DMA read

Update Xilinx Versal external DMA read logic to fix random issues
- Instead of having the fixed timeout, update the read timeout based on
the length of the transfer to avoid timeout for larger data size.
- While switching between external DMA read and indirect read, disable the
SPI before configuration and enable it after configuration as recommended
by Octal-SPI Flash Controller specification.

Sai Krishna Potthuri (2):
  spi: cadence-quadspi: Update the read timeout based on the length
  spi: cadence-quadspi: Disable the SPI before reconfiguring

 drivers/spi/spi-cadence-quadspi.c | 40 ++++++++++++++++++-------------
 1 file changed, 24 insertions(+), 16 deletions(-)

-- 
2.25.1