ARM: dts: imx6sll: Specify IMX6SLL_CLK_IPG as "ipg" clock to SDMA
authorAndrey Smirnov <andrew.smirnov@gmail.com>
Fri, 29 Mar 2019 06:49:20 +0000 (23:49 -0700)
committerShawn Guo <shawnguo@kernel.org>
Thu, 11 Apr 2019 02:27:25 +0000 (10:27 +0800)
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 IMX6SLL_CLK_SDMA result in driver incorrectly thinking that
ratio is 1:1 which results in broken SDMA funtionality. Fix the code
to specify IMX6SLL_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>
arch/arm/boot/dts/imx6sll.dtsi

index 62847c68330bb835c64f6769daba5668ca8cd71f..ed598d72038c9c8e70a90b607e90cfd3af21a556 100644 (file)
                                compatible = "fsl,imx6sll-sdma", "fsl,imx35-sdma";
                                reg = <0x020ec000 0x4000>;
                                interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
-                               clocks = <&clks IMX6SLL_CLK_SDMA>,
+                               clocks = <&clks IMX6SLL_CLK_IPG>,
                                         <&clks IMX6SLL_CLK_SDMA>;
                                clock-names = "ipg", "ahb";
                                #dma-cells = <3>;