davidlt/kernel-ark
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

dt-bindings: usb: mtu3: remove support VBUS detection of extcon

Browse Source 
Due to no platforms use a multi-funtion pin to detect VBUS
status until now when support dual role mode, prefer not to
support it anymore;
Another reason is that the controller doesn't support idle status,
the dual role port works as device or as host, using an IDDIG pin
is good enough, this will help to save another multi-function pin;
And fix a typo of 'neede';
Last modify example using VBUS to turn on/off device, for device
only mode, the driver doesn't get extcon.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1626340078-29111-2-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun 2021-07-15 17:07:46 +08:00 committed by Greg Kroah-Hartman
parent d842bc6c05
commit a71786d7f5
1 changed files with 18 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml
View File

@ -106,7 +106,7 @@ properties:
extcon:
deprecated: true
description: |
Phandle to the extcon device detecting the IDDIG/VBUS state, neede
Phandle to the extcon device detecting the IDDIG state, needed
when supports dual-role mode.
It's considered valid for compatibility reasons, not allowed for
new bindings, and use "usb-role-switch" property instead.
@ -230,7 +230,7 @@ examples:
};
};
# Enable/disable device by an input gpio for VBUS pin
# Dual role switch by gpio-usb-b-connector
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/power/mt2712-power.h>
@ -244,13 +244,27 @@ examples:
power-domains = <&scpsys MT2712_POWER_DOMAIN_USB2>;
clocks = <&topckgen CLK_TOP_USB30_SEL>;
clock-names = "sys_ck";
dr_mode = "peripheral";
dr_mode = "otg";
usb-role-switch;
#address-cells = <1>;
#size-cells = <1>;
ranges;
host0: usb@11270000 {
compatible = "mediatek,mt2712-xhci", "mediatek,mtk-xhci";
reg = <0x11270000 0x1000>;
reg-names = "mac";
interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_LOW>;
power-domains = <&scpsys MT2712_POWER_DOMAIN_USB>;
clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>;
clock-names = "sys_ck", "ref_ck";
};
connector {
compatible = "gpio-usb-b-connector", "usb-b-connector";
type = "micro";
vbus-gpios = <&pio 13 GPIO_ACTIVE_HIGH>;
id-gpios = <&pio 12 GPIO_ACTIVE_HIGH>;
vbus-supply = <&usb_p0_vbus>;
};
};