On 07/05/2017 07:24 PM, Peter Chen wrote:
On Wed, Jul 05, 2017 at 08:19:53PM +0300, Dmitry Osipenko wrote:
From: Thierry Reding <treding@xxxxxxxxxx>
Override the compatible string of the first USB controller to enable
device mode.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
arch/arm/boot/dts/tegra20-trimslice.dts | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts b/arch/arm/boot/dts/tegra20-trimslice.dts
index b902ab594afa..96b4f3f9827b 100644
--- a/arch/arm/boot/dts/tegra20-trimslice.dts
+++ b/arch/arm/boot/dts/tegra20-trimslice.dts
@@ -336,7 +336,9 @@
};
usb@c5000000 {
+ compatible = "nvidia,tegra20-udc";
status = "okay";
+ dr_mode = "otg";
If this board supports peripheral-only, you need to
set dr_mode as "peripheral".
I agree here. Even if the ports can theoretically do otg, and DT is
supposed to represent HW not SW, given we have no SW support for actual
OTG, it'd be best not to change the DT to OTG until it's actually useful
to do so. This comment applies to the patches I ack'd already too.
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