Re: [PATCH] ARM: dts: nxp: imx6qdl: add dr_mode to usbotg

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On 12/13/24 16:17, Xu Yang wrote:
Hi,

On Thu, Dec 12, 2024 at 12:31:26PM +0800, Hui Wang wrote:
For the chipidea usb driver, if the dr_mode is not set, it will set
the device to otg mode by default, so here the dr_mode has not been
set for a long time. But some testcases need to parse the dr_mode from
DT and decide the follow-up test strategy, here set the dr_mode to otg
explicitly for QA's testcases.
The dr_mode is board specific property, so we normally don't put it in
dtsi file. Also, imx6qdl.dtsi is a common dtsi, therefore it's not a
correct place. I wonder you don't set dr_mode in other dts file which
include will imx6qdl.dtsi?

Yes, our QA reported this issue against the imx6q-sabresd board, I thought dr_mode could be overwritten if board dts set the dr_mode, so this change will not impact existing boards. But as you said "we normally don't put it in dtsi file", I will move it to imx6q-sabresd.dts.

Thanks,

Hui.

Thanks,
Xu Yang

Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
---
  arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi | 1 +
  1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi
index d2200c9db25a..285fb7314a88 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi
@@ -982,6 +982,7 @@ usbotg: usb@2184000 {
  				clocks = <&clks IMX6QDL_CLK_USBOH3>;
  				fsl,usbphy = <&usbphy1>;
  				fsl,usbmisc = <&usbmisc 0>;
+				dr_mode = "otg";
  				ahb-burst-config = <0x0>;
  				tx-burst-size-dword = <0x10>;
  				rx-burst-size-dword = <0x10>;
--
2.34.1





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