diff options
| author | Stefan Eichenberger <stefan.eichenberger@toradex.com> | 2023-05-24 18:12:28 +0200 |
|---|---|---|
| committer | Stefan Eichenberger <eichest@gmail.com> | 2023-05-24 18:25:17 +0200 |
| commit | 3592e06b1bda505d04689493e092726550fed3b4 (patch) | |
| tree | 1a8efe4b4f27bfb7bb9c118e6afb4de42cf00028 | |
| parent | 4d948676c55ff543adcbd1b46714c9eae03a9052 (diff) | |
arm64: dts: imx8mp: add bus_early clock to imx8mp-dwc3
Add a bus_early clock property to the imx8mp-dwc3 driver so that we can
access register 0x382f0000 and 0x381f0000 after a suspend/resume
cycle. Without this change suspend/resume will hang on resume.
Upstream-Status: Inappropriate [other]
This fix is only needed for the downstream kernel. In the upstream
kernel they added a power-domain for all hsio devices (usb, pcie, etc.)
and enable the clock there. However, backporting this solution would
probably cause more issues for now.
Fixes: cbd09f688623 ("usb: dwc3: imx8mp: Add support for setting SOC specific flags")
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp.dtsi | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index eaf06ad7ea1c..e2e34ee90173 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -2149,9 +2149,10 @@ compatible = "fsl,imx8mp-dwc3"; reg = <0x32f10100 0x8>, <0x381f0000 0x20>; - clocks = <&clk IMX8MP_CLK_HSIO_ROOT>, + clocks = <&clk IMX8MP_CLK_HSIO_AXI>, + <&clk IMX8MP_CLK_HSIO_ROOT>, <&clk IMX8MP_CLK_USB_ROOT>; - clock-names = "hsio", "suspend"; + clock-names = "bus_early", "hsio", "suspend"; interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>; power-domains = <&hsiomix_pd>; #address-cells = <1>; @@ -2192,9 +2193,10 @@ compatible = "fsl,imx8mp-dwc3"; reg = <0x32f10108 0x8>, <0x382f0000 0x20>; - clocks = <&clk IMX8MP_CLK_HSIO_ROOT>, + clocks = <&clk IMX8MP_CLK_HSIO_AXI>, + <&clk IMX8MP_CLK_HSIO_ROOT>, <&clk IMX8MP_CLK_USB_ROOT>; - clock-names = "hsio", "suspend"; + clock-names = "bus_early", "hsio", "suspend"; interrupts = <GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>; power-domains = <&hsiomix_pd>; #address-cells = <1>; |