From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Jones Subject: Re: [PATCH v5 4/5] mfd/regulator: dt-bindings: max77686: Document gpio properties Date: Tue, 20 Jan 2015 13:41:11 +0000 Message-ID: <20150120134111.GI13701@x1> References: <1420458525-22576-1-git-send-email-k.kozlowski@samsung.com> <1420458525-22576-5-git-send-email-k.kozlowski@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <1420458525-22576-5-git-send-email-k.kozlowski@samsung.com> Sender: linux-kernel-owner@vger.kernel.org To: Krzysztof Kozlowski Cc: Liam Girdwood , Mark Brown , linux-kernel@vger.kernel.org, Kukjin Kim , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Kyungmin Park , Bartlomiej Zolnierkiewicz List-Id: devicetree@vger.kernel.org On Mon, 05 Jan 2015, Krzysztof Kozlowski wrote: > Document usage of maxim,ena-gpios properties which turn on external/G= PIO > control over regulator. >=20 > Signed-off-by: Krzysztof Kozlowski > --- > Documentation/devicetree/bindings/mfd/max77686.txt | 14 ++++++++++++= ++ > 1 file changed, 14 insertions(+) >=20 > diff --git a/Documentation/devicetree/bindings/mfd/max77686.txt b/Doc= umentation/devicetree/bindings/mfd/max77686.txt > index 75fdfaf41831..e39f0bc1f55e 100644 > --- a/Documentation/devicetree/bindings/mfd/max77686.txt > +++ b/Documentation/devicetree/bindings/mfd/max77686.txt > @@ -39,6 +39,12 @@ to get matched with their hardware counterparts as= follow: > -BUCKn : 1-4. > Use standard regulator bindings for it ('regulator-off-in-suspend'= ). > =20 > + LDO20, LDO21, LDO22, BUCK8 and BUCK9 can be configured to GPIO ena= ble > + control. To turn this feature on this property must be added to th= e regulator > + sub-node: > + - maxim,ena-gpios : one GPIO specifier enable control (the gpio > + flags are actually ignored and always > + ACTIVE_HIGH is used) How does this differ to the 'enable-gpio' property which has already been defined? > Example: > =20 > @@ -65,4 +71,12 @@ Example: > regulator-always-on; > regulator-boot-on; > }; > + > + buck9_reg { > + regulator-compatible =3D "BUCK9"; > + regulator-name =3D "CAM_ISP_CORE_1.2V"; > + regulator-min-microvolt =3D <1000000>; > + regulator-max-microvolt =3D <1200000>; > + maxim,ena-gpios =3D <&gpm0 3 GPIO_ACTIVE_HIGH>; > + }; > } --=20 Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org =E2=94=82 Open source software for ARM SoCs =46ollow Linaro: Facebook | Twitter | Blog