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Introduce a new property vbus-supply to represent the regulator powering the VBUS when acting as an A-Device. This supply will be enabled and disabled as necessary. Note that this is different from vbus-regulator, which represented the available current available to draw from VBUS in B-Device mode. Because no one was using vbus-regulator, remove it. Signed-off-by: Sean Anderson --- Changes in v2: - Fix dt_binding_check errors Documentation/devicetree/bindings/usb/usb-nop-xceiv.yaml | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/usb/usb-nop-xceiv.yaml b/Documentation/devicetree/bindings/usb/usb-nop-xceiv.yaml index 2824c17285ee..b4517b01616f 100644 --- a/Documentation/devicetree/bindings/usb/usb-nop-xceiv.yaml +++ b/Documentation/devicetree/bindings/usb/usb-nop-xceiv.yaml @@ -34,10 +34,9 @@ properties: description: Should specify the GPIO detecting a VBus insertion maxItems: 1 - vbus-regulator: - description: Should specifiy the regulator supplying current drawn from - the VBus line. - $ref: /schemas/types.yaml#/definitions/phandle + vbus-supply: + description: regulator supplying VBUS. It will be enabled and disabled + dynamically in OTG mode. required: - compatible @@ -57,7 +56,7 @@ examples: vcc-supply = <&hsusb1_vcc_regulator>; reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>; vbus-detect-gpio = <&gpio2 13 GPIO_ACTIVE_HIGH>; - vbus-regulator = <&vbus_regulator>; + vbus-supply = <&vbus_regulator>; #phy-cells = <0>; }; From patchwork Mon Apr 25 17:14:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Anderson X-Patchwork-Id: 565995 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55E00C433F5 for ; Mon, 25 Apr 2022 17:14:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243803AbiDYRRs (ORCPT ); Mon, 25 Apr 2022 13:17:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60350 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243929AbiDYRRo (ORCPT ); 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Fix this by actually getting the supply from the device tree. Fixes: 7acc9973e3c4 ("usb: phy: generic: add vbus support") Signed-off-by: Sean Anderson --- (no changes since v1) drivers/usb/phy/phy-generic.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c index 661a229c105d..34b9f8140187 100644 --- a/drivers/usb/phy/phy-generic.c +++ b/drivers/usb/phy/phy-generic.c @@ -268,6 +268,13 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop) return -EPROBE_DEFER; } + nop->vbus_draw = devm_regulator_get_exclusive(dev, "vbus"); + if (PTR_ERR(nop->vbus_draw) == -ENODEV) + nop->vbus_draw = NULL; + if (IS_ERR(nop->vbus_draw)) + return dev_err_probe(dev, PTR_ERR(nop->vbus_draw), + "could not get vbus regulator\n"); + nop->dev = dev; nop->phy.dev = nop->dev; nop->phy.label = "nop-xceiv"; From patchwork Mon Apr 25 17:14:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Anderson X-Patchwork-Id: 565994 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41B56C433EF for ; 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Signed-off-by: Sean Anderson --- (no changes since v1) drivers/usb/phy/phy-generic.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c index 2c2553bc9b54..9fc3312d614a 100644 --- a/drivers/usb/phy/phy-generic.c +++ b/drivers/usb/phy/phy-generic.c @@ -328,6 +328,9 @@ static int usb_phy_generic_remove(struct platform_device *pdev) usb_remove_phy(&nop->phy); + if (nop->vbus_draw && nop->vbus_draw_enabled) + regulator_disable(nop->vbus_draw); + return 0; }