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Date: Thu, 13 Jun 2019 10:33:37 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Andrey Smirnov <andrew.smirnov@...il.com>, "Angus Ainslie (Purism)" <angus@...ea.ca>, Chris Healy <cphealy@...il.com>, Lucas Stach <l.stach@...gutronix.de>, Fabio Estevam <fabio.estevam@....com>, Shawn Guo <shawnguo@...nel.org>, linux-arm-kernel@...ts.infradead.org, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.1 105/155] ARM: dts: imx51: Specify IMX5_CLK_IPG as "ahb" clock to SDMA [ Upstream commit 918bbde8085ae147a43dcb491953e0dd8f3e9d6a ] 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. Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com> Cc: Angus Ainslie (Purism) <angus@...ea.ca> Cc: Chris Healy <cphealy@...il.com> Cc: Lucas Stach <l.stach@...gutronix.de> Cc: Fabio Estevam <fabio.estevam@....com> Cc: Shawn Guo <shawnguo@...nel.org> Cc: linux-arm-kernel@...ts.infradead.org Cc: linux-kernel@...r.kernel.org Signed-off-by: Shawn Guo <shawnguo@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- arch/arm/boot/dts/imx51.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi index a5ee25cedc10..0a4b9a5d9a9c 100644 --- a/arch/arm/boot/dts/imx51.dtsi +++ b/arch/arm/boot/dts/imx51.dtsi @@ -489,7 +489,7 @@ reg = <0x83fb0000 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-imx51.bin"; -- 2.20.1
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