From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from muru.com ([72.249.23.125]:58932 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726315AbfH1PRK (ORCPT ); Wed, 28 Aug 2019 11:17:10 -0400 From: Tony Lindgren Subject: [PATCH] ARM: dts: omap4-droid4: Allow 350mA current for USB peripherals Date: Wed, 28 Aug 2019 08:17:06 -0700 Message-Id: <20190828151706.32643-1-tony@atomide.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: devicetree-owner@vger.kernel.org To: linux-omap@vger.kernel.org Cc: =?UTF-8?q?Beno=C3=AEt=20Cousson?= , devicetree@vger.kernel.org, Jacopo Mondi , Marcel Partap , Merlijn Wajer , Michael Scott , NeKit , Pavel Machek , Sebastian Reichel List-ID: Looks like we can use some USB Ethernet dongles for example if we increase the allowed power limit. A similar PMIC MC13783 documents maximum current limit as 350 mA in in "Table 10-3. VUSB Regulator Main Characteristics". Since we have no other documentation, let's use that value as the limit. Cc: Jacopo Mondi Cc: Marcel Partap Cc: Merlijn Wajer Cc: Michael Scott Cc: NeKit Cc: Pavel Machek Cc: Sebastian Reichel Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/omap4-droid4-xt894.dts | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts --- a/arch/arm/boot/dts/omap4-droid4-xt894.dts +++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts @@ -781,7 +781,12 @@ &usb_otg_hs { interface-type = <1>; mode = <3>; - power = <50>; + + /* + * Max 350 mA steps based on similar PMIC MC13783UG.pdf "Table 10-3. + * VUSB Regulator Main Characteristics". Binding uses 2 mA units. + */ + power = <175>; }; &i2c4 { -- 2.23.0