From 269e31aecdd0b70f53a05def79480f15cbcc0fd6 Mon Sep 17 00:00:00 2001 From: Ralf Schlatterbeck Date: Fri, 2 Feb 2024 12:53:30 +0100 Subject: [PATCH] spi-mxs: Fix chipselect glitch There was a change in the mxs-dma engine that uses a new custom flag. The change was not applied to the mxs spi driver. This results in chipselect being deasserted too early. This fixes the chipselect problem by using the new flag in the mxs-spi driver. Fixes: ceeeb99cd821 ("dmaengine: mxs: rename custom flag") Signed-off-by: Ralf Schlatterbeck Link: https://msgid.link/r/20240202115330.wxkbfmvd76sy3a6a@runtux.com Signed-off-by: Mark Brown --- drivers/spi/spi-mxs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c index 1bf080339b5a..88cbe4f00cc3 100644 --- a/drivers/spi/spi-mxs.c +++ b/drivers/spi/spi-mxs.c @@ -39,6 +39,7 @@ #include #include #include +#include #define DRIVER_NAME "mxs-spi" @@ -252,7 +253,7 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi, desc = dmaengine_prep_slave_sg(ssp->dmach, &dma_xfer[sg_count].sg, 1, (flags & TXRX_WRITE) ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM, - DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + DMA_PREP_INTERRUPT | MXS_DMA_CTRL_WAIT4END); if (!desc) { dev_err(ssp->dev, -- 2.49.0