DWC3 device found on Exynos SoCs cannot work in OTG mode alone, because it lacks some OTG related control part. OTG mode operation is possible only with external hardware logic (usually GPIO-based) specific to the board. Right now, however, there is no driver for such logic and no bindings, so the OTG mode is disfunctional at all (this means that it doesn't work as a peripheral nor as a host). This patch sets the operation mode to peripheral to get DWC3_1 device at least somehow working. This can be later updated, when proper OTG driver and bindings get developed.
Signed-off-by: Marek Szyprowski <[email protected]> --- arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts | 2 +- arch/arm/boot/dts/exynos5422-odroidxu3.dts | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts b/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts index b1b3608..2ae1cf4 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts +++ b/arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts @@ -67,5 +67,5 @@ }; &usbdrd_dwc3_1 { - dr_mode = "otg"; + dr_mode = "peripheral"; }; diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts index 0c0bbdb..432406d 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts @@ -98,5 +98,5 @@ }; &usbdrd_dwc3_1 { - dr_mode = "otg"; + dr_mode = "peripheral"; }; -- 1.9.2 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
