Subject: [PATCH 4.19 085/118] ARM: dts: imx7d: Specify IMX7D_CLK_IPG as "ipg" clock to SDMA

From: Greg Kroah-Hartman <[email-masked]>
Date: Thu, 13 Jun 2019 10:33:43 +0200

[ 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 <[email-masked]>
Cc: Angus Ainslie (Purism) <[email-masked]>
Cc: Chris Healy <[email-masked]>
Cc: Lucas Stach <[email-masked]>
Cc: Fabio Estevam <[email-masked]>
Cc: Shawn Guo <[email-masked]>
Cc: [email-masked]
Cc: [email-masked]
Signed-off-by: Shawn Guo <[email-masked]>
Signed-off-by: Sasha Levin <[email-masked]>
---
 arch/arm/boot/dts/imx7s.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index a052198f6e96..a7f697b0290f 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -1050,8 +1050,8 @@
 				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";
-- 
2.20.1

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