This is a note to let you know that I've just added the patch titled
arm64: dts: imx8-ss-dma: fix pwm lpcg indices
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-imx8-ss-dma-fix-pwm-lpcg-indices.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9055d87bce7276234173fa90e9702af31b3f5353 Mon Sep 17 00:00:00 2001
From: Frank Li <Frank.Li@xxxxxxx>
Date: Mon, 1 Apr 2024 18:25:06 -0400
Subject: arm64: dts: imx8-ss-dma: fix pwm lpcg indices
From: Frank Li <Frank.Li@xxxxxxx>
commit 9055d87bce7276234173fa90e9702af31b3f5353 upstream.
adma_pwm_lpcg: clock-controller@5a590000 {
... col1 col2
clocks = <&clk IMX_SC_R_LCD_0_PWM_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.
adma_pwm: pwm@5a190000 {
...
clocks = <&adma_pwm_lpcg 1>, <&adma_pwm_lpcg 0>;
^^ ^^
Should be
clocks = <&adma_pwm_lpcg IMX_LPCG_CLK_4>,
<&adma_pwm_lpcg IMX_LPCG_CLK_0>;
};
Arg0 will be divided by 4 in lcpg driver, so pwm will get IMX_SC_PM_CLK_PER
by <&adma_pwm_lpcg 1>, <&adma_pwm_lpcg 0>. Although function can work, code
logic is wrong. Fix it by use correct indices.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: f1d6a6b991ef ("arm64: dts: imx8qxp: add adma_pwm in adma")
Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
@@ -144,8 +144,8 @@ dma_subsys: bus@5a000000 {
compatible = "fsl,imx8qxp-pwm", "fsl,imx27-pwm";
reg = <0x5a190000 0x1000>;
interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&adma_pwm_lpcg 1>,
- <&adma_pwm_lpcg 0>;
+ clocks = <&adma_pwm_lpcg IMX_LPCG_CLK_4>,
+ <&adma_pwm_lpcg IMX_LPCG_CLK_0>;
clock-names = "ipg", "per";
assigned-clocks = <&clk IMX_SC_R_LCD_0_PWM_0 IMX_SC_PM_CLK_PER>;
assigned-clock-rates = <24000000>;
Patches currently in stable-queue which might be from Frank.Li@xxxxxxx are
queue-6.8/arm64-dts-imx8-ss-dma-fix-can-lpcg-indices.patch
queue-6.8/arm64-dts-imx8-ss-dma-fix-pwm-lpcg-indices.patch
queue-6.8/arm64-dts-imx8-ss-lsio-fix-pwm-lpcg-indices.patch
queue-6.8/arm64-dts-imx8-ss-conn-fix-usdhc-wrong-lpcg-clock-or.patch
queue-6.8/arm64-dts-imx8-ss-dma-fix-adc-lpcg-indices.patch
queue-6.8/arm64-dts-imx8qm-ss-dma-fix-can-lpcg-indices.patch
queue-6.8/arm64-dts-imx8-ss-dma-fix-spi-lpcg-indices.patch
queue-6.8/arm64-dts-imx8-ss-conn-fix-usb-lpcg-indices.patch
