From a6c41ccfea62b87b5801d7f559138dbe7c9906e6 Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Sat, 15 Jun 2019 21:35:04 +0800 Subject: [PATCH] ARM: dts: imx6sll: Specify IMX6SLL_CLK_IPG as "ipg" clock to SDMA [ Upstream commit c5ed5daa65d5f665e666b76c3dbfa503066defde ] 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 IMX6SLL_CLK_SDMA result in driver incorrectly thinking that ratio is 1:1 which results in broken SDMA funtionality. Fix the code to specify IMX6SLL_CLK_IPG as "ipg" clock for SDMA, to avoid detecting incorrect clock ratio. Signed-off-by: Andrey Smirnov Cc: Angus Ainslie (Purism) Cc: Chris Healy Cc: Lucas Stach Cc: Fabio Estevam Cc: Shawn Guo Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin Signed-off-by: Yang Yingliang --- arch/arm/boot/dts/imx6sll.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6sll.dtsi b/arch/arm/boot/dts/imx6sll.dtsi index 3e6ffaf5f104..7c7d5c47578e 100644 --- a/arch/arm/boot/dts/imx6sll.dtsi +++ b/arch/arm/boot/dts/imx6sll.dtsi @@ -591,7 +591,7 @@ compatible = "fsl,imx6sll-sdma", "fsl,imx35-sdma"; reg = <0x020ec000 0x4000>; interrupts = ; - clocks = <&clks IMX6SLL_CLK_SDMA>, + clocks = <&clks IMX6SLL_CLK_IPG>, <&clks IMX6SLL_CLK_SDMA>; clock-names = "ipg", "ahb"; #dma-cells = <3>; -- GitLab