Hi,
I'm using a RK3288 rockchip board whit kernel rockchip-linux release-4.4.
It has two USB host and one of them has a DW controller. If I connect a
UVC camera on it, I get into an incomplete MJPG frame error when enable
stream with a image format greater or equal than 1920x1080. There isn't
any related error on dmseg log, even if I enable CONFIG_USB_DWC2_DEBUG.
So I can check that issue only processing MJPG data or showing that frame.
I'm certain it isn't a camera problem cause if I connect it to the other
ECHI controller USB port it work properly. I thought it was an bandwidth
issue cause if I reduce image format the problem disappear. Could it be
so? If not, what could it be the problem?
This is rk3288.dtsi usb hosts config
usb_host0_ehci: usb@ff500000 {
compatible = "generic-ehci";
reg = <0xff500000 0x100>;
interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_USBHOST0>;
clock-names = "usbhost";
phys = <&usbphy1>;
phy-names = "usb";
status = "disabled";
};
usb_host1: usb@ff540000 {
compatible = "rockchip,rk3288-usb", "rockchip,rk3066-usb",
"snps,dwc2";
reg = <0xff540000 0x40000>;
interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru HCLK_USBHOST1>;
clock-names = "otg";
dr_mode = "host";
phys = <&usbphy2>;
phy-names = "usb2-phy";
status = "disabled";
};
thank you for the attention,
best regards
Andrea
Software Department
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