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ARM: dts: imx7d: Specify IMX7D_CLK_IPG as "ipg" clock to SDMA

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[ Upstream commit 412b032a1dc72fc9d1c258800355efa6671b6315 ]

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 IMX7D_CLK_SDMA results in driver incorrectly thinking that
ratio is 1:1 which results in broken SDMA funtionality. Fix the code
to specify IMX7D_CLK_IPG as "ipg" 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 23:49:18 -07:00 committed by Greg Kroah-Hartman
parent 8c95d041ba
commit 3139a47b07
1 changed files with 2 additions and 2 deletions
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4
arch/arm/boot/dts/imx7s.dtsi
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@ -997,8 +997,8 @@
compatible = "fsl,imx7d-sdma", "fsl,imx35-sdma";
reg = <0x30bd0000 0x10000>;
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX7D_SDMA_CORE_CLK>,
<&clks IMX7D_AHB_CHANNEL_ROOT_CLK>;
clocks = <&clks IMX7D_IPG_ROOT_CLK>,
<&clks IMX7D_SDMA_CORE_CLK>;
clock-names = "ipg", "ahb";
#dma-cells = <3>;
fsl,sdma-ram-script-name = "imx/sdma/sdma-imx7d.bin";