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Date: Thu, 13 Jun 2019 10:33:44 +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 5.1 112/155] ARM: dts: imx6sx: Specify IMX6SX_CLK_IPG as "ipg" clock to SDMA [ Upstream commit 8979117765c19edc3b01cc0ef853537bf93eea4b ] 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 IMX6SX_CLK_SDMA results in driver incorrectly thinking that ratio is 1:1 which results in broken SDMA funtionality. Fix the code to specify IMX6SX_CLK_IPG as "ipg" 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/imx6sx.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi index 5b16e65f7696..fc5a8fc74091 100644 --- a/arch/arm/boot/dts/imx6sx.dtsi +++ b/arch/arm/boot/dts/imx6sx.dtsi @@ -820,7 +820,7 @@ compatible = "fsl,imx6sx-sdma", "fsl,imx6q-sdma"; reg = <0x020ec000 0x4000>; interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&clks IMX6SX_CLK_SDMA>, + clocks = <&clks IMX6SX_CLK_IPG>, <&clks IMX6SX_CLK_SDMA>; clock-names = "ipg", "ahb"; #dma-cells = <3>; -- 2.20.1
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