[ 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.smir...@gmail.com>
Cc: Angus Ainslie (Purism) <an...@akkea.ca>
Cc: Chris Healy <cphe...@gmail.com>
Cc: Lucas Stach <l.st...@pengutronix.de>
Cc: Fabio Estevam <fabio.este...@nxp.com>
Cc: Shawn Guo <shawn...@kernel.org>
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Shawn Guo <shawn...@kernel.org>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
arch/arm/boot/dts/imx50.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx50.dtsi b/arch/arm/boot/dts/imx50.dtsi
index 3747d80104f4..63e1d2fe2e19 100644
--- a/arch/arm/boot/dts/imx50.dtsi
+++ b/arch/arm/boot/dts/imx50.dtsi
@@ -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";
};
--
2.20.1
