| From 0fdebe1a2f4d3a8fc03754022fabf8ba95e131a3 Mon Sep 17 00:00:00 2001 |
| From: Stefan Wahren <stefan.wahren@i2se.com> |
| Date: Tue, 14 Apr 2015 20:37:26 +0000 |
| Subject: ARM: dts: imx23-olinuxino: Fix dr_mode of usb0 |
| |
| From: Stefan Wahren <stefan.wahren@i2se.com> |
| |
| commit 0fdebe1a2f4d3a8fc03754022fabf8ba95e131a3 upstream. |
| |
| The dr_mode of usb0 on imx233-olinuxino is left to default "otg". |
| Since the green LED (GPIO2_1) on imx233-olinuxino is connected to the |
| same pin as USB_OTG_ID it's possible to disable USB host by LED toggling: |
| |
| echo 0 > /sys/class/leds/green/brightness |
| [ 1068.890000] ci_hdrc ci_hdrc.0: remove, state 1 |
| [ 1068.890000] usb usb1: USB disconnect, device number 1 |
| [ 1068.920000] usb 1-1: USB disconnect, device number 2 |
| [ 1068.920000] usb 1-1.1: USB disconnect, device number 3 |
| [ 1069.070000] usb 1-1.2: USB disconnect, device number 4 |
| [ 1069.450000] ci_hdrc ci_hdrc.0: USB bus 1 deregistered |
| [ 1074.460000] ci_hdrc ci_hdrc.0: timeout waiting for 00000800 in 11 |
| |
| This patch fixes the issue by setting dr_mode to "host" in the dts file. |
| |
| Reported-by: Harald Geyer <harald@ccbib.org> |
| Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> |
| Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com> |
| Reviewed-by: Marek Vasut <marex@denx.de> |
| Acked-by: Peter Chen <peter.chen@freescale.com> |
| Fixes: b49312948285 ("ARM: dts: imx23-olinuxino: Add USB host support") |
| Signed-off-by: Shawn Guo <shawn.guo@linaro.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| arch/arm/boot/dts/imx23-olinuxino.dts | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| --- a/arch/arm/boot/dts/imx23-olinuxino.dts |
| +++ b/arch/arm/boot/dts/imx23-olinuxino.dts |
| @@ -89,6 +89,7 @@ |
| |
| ahb@80080000 { |
| usb0: usb@80080000 { |
| + dr_mode = "host"; |
| vbus-supply = <®_usb0_vbus>; |
| status = "okay"; |
| }; |