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[46.138.83.36]) by smtp.gmail.com with ESMTPSA id a18sm664556ljd.4.2021.09.12.11.19.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Sep 2021 11:19:23 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Peter Chen , Greg Kroah-Hartman , Felipe Balbi , David Heidelberg Cc: devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v7 6/7] ARM: tegra: nexus7: Enable USB OTG mode Date: Sun, 12 Sep 2021 21:17:17 +0300 Message-Id: <20210912181718.1328-7-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210912181718.1328-1-digetx@gmail.com> References: <20210912181718.1328-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Nexus 7 has OTG-cable microUSB port, enable OTG mode. USB peripheral devices now can be connected to Nexus 7 using OTG adapter, switching USB port into host mode. Signed-off-by: Dmitry Osipenko --- .../tegra30-asus-nexus7-grouper-common.dtsi | 25 +++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi b/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi index 4f116c26f6ce..798ac22a50d2 100644 --- a/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi +++ b/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi @@ -941,9 +941,29 @@ power_supply: charger@6a { interrupts = ; summit,enable-charge-control = ; + summit,inok-polarity = ; summit,enable-usb-charging; monitored-battery = <&battery_cell>; + + usb_vbus: usb-vbus { + regulator-name = "usb_vbus"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-min-microamp = <750000>; + regulator-max-microamp = <750000>; + + /* + * SMB347 INOK input pin is connected to PMIC's + * ACOK output, which is fixed to ACTIVE_LOW as + * long as battery voltage is in a good range. + * + * Active INOK disables SMB347 output, so polarity + * needs to be toggled when we want to get the + * output. + */ + summit,needs-inok-toggle; + }; }; }; @@ -1017,12 +1037,13 @@ sdmmc4: mmc@78000600 { usb@7d000000 { compatible = "nvidia,tegra30-udc"; status = "okay"; - dr_mode = "peripheral"; + dr_mode = "otg"; + vbus-supply = <&usb_vbus>; }; usb-phy@7d000000 { status = "okay"; - dr_mode = "peripheral"; + dr_mode = "otg"; nvidia,hssync-start-delay = <0>; nvidia,xcvr-lsfslew = <2>; nvidia,xcvr-lsrslew = <2>;