From: Frank Li <Frank.Li@nxp.com>
Date: Mon, 1 Apr 2024 22:25:05 +0000 (-0400)
Subject: arm64: dts: imx8-ss-dma: fix spi lpcg indices
X-Git-Tag: v6.6.28~24
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a156f37b8e3ca7afbccb3f1b6507e150a20ac892;p=thirdparty%2Fkernel%2Fstable.git

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

commit f72b544a514c07d34a0d9d5380f5905b3731e647 upstream.

spi0_lpcg: clock-controller@5a400000 {
	...                                                  Col0   Col1
	clocks = <&clk IMX_SC_R_SPI_0 IMX_SC_PM_CLK_PER>,//   0      1
		 <&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.

lpspi0: spi@5a000000 {
	...
	clocks = <&spi0_lpcg 0>, <&spi0_lpcg 1>;
			     ^		     ^
Should be:
	clocks = <&spi0_lpcg IMX_LPCG_CLK_0>, <&spi0_lpcg IMX_LPCG_CLK_4>;
};

Arg0 is divided by 4 in lpcg driver. <&spi0_lpcg 0> and <&spi0_lpcg 1> are
IMX_SC_PM_CLK_PER. Although code can work, code logic is wrong. It should
use IMX_LPCG_CLK_0 and IMX_LPCG_CLK_4 for lpcg arg0.

Cc: stable@vger.kernel.org
Fixes: c4098885e790 ("arm64: dts: imx8dxl: add lpspi 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 59694465675e5..89857e14c4614 100644
--- a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
@@ -27,8 +27,8 @@ dma_subsys: bus@5a000000 {
 		#size-cells = <0>;
 		interrupts = <GIC_SPI 336 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-parent = <&gic>;
-		clocks = <&spi0_lpcg 0>,
-			 <&spi0_lpcg 1>;
+		clocks = <&spi0_lpcg IMX_LPCG_CLK_0>,
+			 <&spi0_lpcg IMX_LPCG_CLK_4>;
 		clock-names = "per", "ipg";
 		assigned-clocks = <&clk IMX_SC_R_SPI_0 IMX_SC_PM_CLK_PER>;
 		assigned-clock-rates = <60000000>;
@@ -43,8 +43,8 @@ dma_subsys: bus@5a000000 {
 		#size-cells = <0>;
 		interrupts = <GIC_SPI 337 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-parent = <&gic>;
-		clocks = <&spi1_lpcg 0>,
-			 <&spi1_lpcg 1>;
+		clocks = <&spi1_lpcg IMX_LPCG_CLK_0>,
+			 <&spi1_lpcg IMX_LPCG_CLK_4>;
 		clock-names = "per", "ipg";
 		assigned-clocks = <&clk IMX_SC_R_SPI_1 IMX_SC_PM_CLK_PER>;
 		assigned-clock-rates = <60000000>;
@@ -59,8 +59,8 @@ dma_subsys: bus@5a000000 {
 		#size-cells = <0>;
 		interrupts = <GIC_SPI 338 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-parent = <&gic>;
-		clocks = <&spi2_lpcg 0>,
-			 <&spi2_lpcg 1>;
+		clocks = <&spi2_lpcg IMX_LPCG_CLK_0>,
+			 <&spi2_lpcg IMX_LPCG_CLK_4>;
 		clock-names = "per", "ipg";
 		assigned-clocks = <&clk IMX_SC_R_SPI_2 IMX_SC_PM_CLK_PER>;
 		assigned-clock-rates = <60000000>;
@@ -75,8 +75,8 @@ dma_subsys: bus@5a000000 {
 		#size-cells = <0>;
 		interrupts = <GIC_SPI 339 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-parent = <&gic>;
-		clocks = <&spi3_lpcg 0>,
-			 <&spi3_lpcg 1>;
+		clocks = <&spi3_lpcg IMX_LPCG_CLK_0>,
+			 <&spi3_lpcg IMX_LPCG_CLK_4>;
 		clock-names = "per", "ipg";
 		assigned-clocks = <&clk IMX_SC_R_SPI_3 IMX_SC_PM_CLK_PER>;
 		assigned-clock-rates = <60000000>;