arm64: dts: imx8-ss-dma: fix adc lpcg indices

commit 81975080f14167610976e968e8016e92d836266f upstream.

adc0_lpcg: clock-controller@5ac80000 {
	...						    Col1   Col2
	clocks = <&clk IMX_SC_R_ADC_0 IMX_SC_PM_CLK_PER>, // 0      0
		 <&dma_ipg_clk>;			  // 1      4
	clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_4>;
};

Col1: index, which existing dts try to get.
Col2: actual index in lpcg driver.

adc0: adc@5a880000 {
	clocks = <&adc0_lpcg 0>, <&adc0_lpcg 1>;
			     ^^              ^^
	clocks = <&adc0_lpcg IMX_LPCG_CLK_0>, <&adc0_lpcg IMX_LPCG_CLK_4>;

Arg0 is divided by 4 in lpcg driver. So adc get IMX_SC_PM_CLK_PER by
<&adc0_lpcg 0>, <&adc0_lpcg 1>. Although function can work, code logic is
wrong. Fix it by using correct indices.

Cc: stable@vger.kernel.org
Fixes: 1db044b25d2e ("arm64: dts: imx8dxl: add adc0 support")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
index 0db7d3404364986b04bad159fd92ac04384c8114..67970e2cd87d1e3c4d2d028e7b26c19b8b2a3abd 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
@@ -377,8 +377,8 @@ adc0: adc@5a880000 {
                reg = <0x5a880000 0x10000>;
                interrupts = <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>;
                interrupt-parent = <&gic>;
-               clocks = <&adc0_lpcg 0>,
-                        <&adc0_lpcg 1>;
+               clocks = <&adc0_lpcg IMX_LPCG_CLK_0>,
+                        <&adc0_lpcg IMX_LPCG_CLK_4>;
                clock-names = "per", "ipg";
                assigned-clocks = <&clk IMX_SC_R_ADC_0 IMX_SC_PM_CLK_PER>;
                assigned-clock-rates = <24000000>;
@@ -392,8 +392,8 @@ adc1: adc@5a890000 {
                reg = <0x5a890000 0x10000>;
                interrupts = <GIC_SPI 241 IRQ_TYPE_LEVEL_HIGH>;
                interrupt-parent = <&gic>;
-               clocks = <&adc1_lpcg 0>,
-                        <&adc1_lpcg 1>;
+               clocks = <&adc1_lpcg IMX_LPCG_CLK_0>,
+                        <&adc1_lpcg IMX_LPCG_CLK_4>;
                clock-names = "per", "ipg";
                assigned-clocks = <&clk IMX_SC_R_ADC_1 IMX_SC_PM_CLK_PER>;
                assigned-clock-rates = <24000000>;