Since 25aaa75df1e6 SDMA driver uses clock rates of "ipg" and "ahb" clock to determine if it needs to configure the IP block as operating at 1:1 or 1:2 clock ratio (ACR bit in SDMAARM_CONFIG). Specifying both clocks as IMX5_CLK_SDMA results in driver incorrectly thinking that ratio is 1:1 which results in broken SDMA funtionality. Fix the code to specify IMX5_CLK_AHB as "ahb" clock for SDMA, to avoid detecting incorrect clock ratio.
Fixes: 25aaa75df1e6 ("dmaengine: imx-sdma: add clock ratio 1:1 check") Signed-off-by: Andrey Smirnov <andrew.smir...@gmail.com> Cc: Angus Ainslie (Purism) <an...@akkea.ca> Cc: Chris Healy <cphe...@gmail.com> Cc: Lucas Stach <l.st...@pengutronix.de> Cc: Fabio Estevam <fabio.este...@nxp.com> Cc: Shawn Guo <shawn...@kernel.org> Cc: linux-arm-ker...@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- arch/arm/boot/dts/imx50.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx50.dtsi b/arch/arm/boot/dts/imx50.dtsi index 5dd61bff3b76..0bfe7c91d0eb 100644 --- a/arch/arm/boot/dts/imx50.dtsi +++ b/arch/arm/boot/dts/imx50.dtsi @@ -430,7 +430,7 @@ reg = <0x63fb0000 0x4000>; interrupts = <6>; clocks = <&clks IMX5_CLK_SDMA_GATE>, - <&clks IMX5_CLK_SDMA_GATE>; + <&clks IMX5_CLK_AHB>; clock-names = "ipg", "ahb"; #dma-cells = <3>; fsl,sdma-ram-script-name = "imx/sdma/sdma-imx50.bin"; -- 2.20.1