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ARM: dts: imx50: Specify IMX5_CLK_IPG as "ahb" clock to SDMA

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[ Upstream commit b7b4fda2636296471e29b78c2aa9535d7bedb7a0 ]

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@gmail.com>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Andrey Smirnov 2019-03-28 23:49:24 -07:00 committed by Greg Kroah-Hartman
parent b92277214b
commit 067b9f3076
1 changed files with 1 additions and 1 deletions
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2
arch/arm/boot/dts/imx50.dtsi
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@ -441,7 +441,7 @@
reg = <0x63fb0000 0x4000>;
interrupts = <6>;
clocks = <&clks IMX5_CLK_SDMA_GATE>,
<&clks IMX5_CLK_SDMA_GATE>;
<&clks IMX5_CLK_AHB>;
clock-names = "ipg", "ahb";
fsl,sdma-ram-script-name = "imx/sdma/sdma-imx50.bin";
};