From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthias Kaehlcke Subject: Re: [PATCH v12 1/7] dt-bindings: net: bluetooth: Add device tree bindings for QTI chip wcn3990 Date: Thu, 2 Aug 2018 10:20:43 -0700 Message-ID: <20180802172043.GN68975@google.com> References: <20180802132518.8680-1-bgodavar@codeaurora.org> <20180802132518.8680-2-bgodavar@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Content-Disposition: inline In-Reply-To: <20180802132518.8680-2-bgodavar@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org To: Balakrishna Godavarthi Cc: marcel@holtmann.org, johan.hedberg@gmail.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-bluetooth@vger.kernel.org, thierry.escande@linaro.org, rtatiya@codeaurora.org, hemantg@codeaurora.org, linux-arm-msm@vger.kernel.org List-Id: devicetree@vger.kernel.org On Thu, Aug 02, 2018 at 06:55:12PM +0530, Balakrishna Godavarthi wrote: > This patch enables regulators for the Qualcomm Bluetooth wcn3990 > controller. > > Signed-off-by: Balakrishna Godavarthi > Reviewed-by: Rob Herring > --- > .../bindings/net/qualcomm-bluetooth.txt | 26 +++++++++++++++++-- > 1 file changed, 24 insertions(+), 2 deletions(-) > > diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt > index 0ea18a53cc29..2175174415ee 100644 > --- a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt > +++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt > @@ -10,12 +10,22 @@ device the slave device is attached to. > Required properties: > - compatible: should contain one of the following: > * "qcom,qca6174-bt" > + * "qcom,wcn3990-bt" > + > +Optional properties for compatible string qcom,qca6174-bt: > > -Optional properties: > - enable-gpios: gpio specifier used to enable chip > - clocks: clock provided to the controller (SUSCLK_32KHZ) > > -Example: > +Optional properties for compatible string qcom,wcn3990-bt: > + > + - vddio-supply: Bluetooth wcn3990 VDD_IO supply regulator handle. > + - vddxo-supply: Bluetooth wcn3990 VDD_XO supply regulator handle. > + - vddrf-supply: Bluetooth wcn3990 VDD_RF supply regulator handle. > + - vddch0-supply: Bluetooth wcn3990 VDD_CH0 supply regulator handle. Are these really optional? If I understand correctly the driver expects the regulators to be there. Even if it could do with only some regulators specified the devm_regulator_bulk_get() call would fail if not all requested regulators are available.