4.14-stable review patch. If anyone has any objections, please let me know.
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From: Sean Wang sean.wang@mediatek.com
commit 0629a01920c0f8a3f825361b24863d760610884a upstream.
Fix that USB initialization fails as below runtime log is present during booting on bananapi-r2 board by adding missing regulators the USB device requires. Current regulators USB device uses are being updated with the correct ones to reflect real configurations which are all from fixed regulators rather than MT6323 one's output.
xhci-mtk 1a1c0000.usb: 1a1c0000.usb supply vbus not found, using dummy regulator xhci-mtk 1a240000.usb: 1a240000.usb supply vbus not found, using dummy regulator
Cc: stable@vger.kernel.org Fixes: f4ff257cd160 ("arm: dts: mt7623: add support for Bananapi R2 (BPI-R2) board") Signed-off-by: Sean Wang sean.wang@mediatek.com [mb: update kernel log in commit message] Signed-off-by: Matthias Brugger matthias.bgg@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-)
--- a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts +++ b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts @@ -39,6 +39,24 @@ }; };
+ reg_3p3v: regulator-3p3v { + compatible = "regulator-fixed"; + regulator-name = "fixed-3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-always-on; + }; + + reg_5v: regulator-5v { + compatible = "regulator-fixed"; + regulator-name = "fixed-5V"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-boot-on; + regulator-always-on; + }; + gpio_keys { compatible = "gpio-keys"; pinctrl-names = "default"; @@ -468,12 +486,14 @@ };
&usb1 { - vusb33-supply = <&mt6323_vusb_reg>; + vusb33-supply = <®_3p3v>; + vbus-supply = <®_5v>; status = "okay"; };
&usb2 { - vusb33-supply = <&mt6323_vusb_reg>; + vusb33-supply = <®_3p3v>; + vbus-supply = <®_5v>; status = "okay"; };