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>
Sun, 8 Jul 2018 13:32:21 +0000 (15:32 +0200)
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

index ae7b3f10789341597ec2723f3520dee39b63e272..5185300cc11f408a74654261746c34600954657e 100644 (file)
@@ -96,7 +96,7 @@
                                        clocks = <&clks IMX6Q_CLK_ECSPI5>,
                                                 <&clks IMX6Q_CLK_ECSPI5>;
                                        clock-names = "ipg", "per";
-                                       dmas = <&sdma 11 7 1>, <&sdma 12 7 2>;
+                                       dmas = <&sdma 11 8 1>, <&sdma 12 8 2>;
                                        dma-names = "rx", "tx";
                                        status = "disabled";
                                };