]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
ARM: dts: imx6q: Use correct SDMA script for SPI5 core
authorSean Nyekjaer <sean.nyekjaer@prevas.dk>
Tue, 22 May 2018 17:45:09 +0000 (19:45 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 11 Jul 2018 14:03:47 +0000 (16:03 +0200)
commit45f47e3a14933afa5261110dbeb580fbf6f6df1d
treec10a1de66f837c5ed0cb8ab0e0eba7b7a76f87e1
parent753465123663c7c96b515befe4a199a2104582d3
ARM: dts: imx6q: Use correct SDMA script for SPI5 core

commit df07101e1c4a29e820df02f9989a066988b160e6 upstream.

According to the reference manual the shp_2_mcu / mcu_2_shp
scripts must be used for devices connected through the SPBA.

This fixes an issue we saw with DMA transfers.
Sometimes the SPI controller RX FIFO was not empty after a DMA
transfer and the driver got stuck in the next PIO transfer when
it read one word more than expected.

commit dd4b487b32a35 ("ARM: dts: imx6: Use correct SDMA script
for SPI cores") is fixing the same issue but only for SPI1 - 4.

Fixes: 677940258dd8e ("ARM: dts: imx6q: enable dma for ecspi5")
Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm/boot/dts/imx6q.dtsi