On Tue, Feb 19, 2019 at 6:14 AM Rob Herring <robh@xxxxxxxxxx> wrote: > > On Mon, Feb 18, 2019 at 3:24 PM Vasily Khoruzhick <anarsoul@xxxxxxxxx> wrote: > > > > On Mon, Feb 18, 2019 at 1:10 PM Rob Herring <robh@xxxxxxxxxx> wrote: > > > > > > On Fri, Jan 18, 2019 at 09:02:27AM -0800, Vasily Khoruzhick wrote: > > > > Add binding document for bluetooth part of RTL8723BS/RTL8723CS > > > > > > > > Signed-off-by: Vasily Khoruzhick <anarsoul@xxxxxxxxx> > > > > --- > > > > .../bindings/net/rtl8723bs-bluetooth.txt | 35 +++++++++++++++++++ > > > > 1 file changed, 35 insertions(+) > > > > create mode 100644 Documentation/devicetree/bindings/net/rtl8723bs-bluetooth.txt > > > > > > > > diff --git a/Documentation/devicetree/bindings/net/rtl8723bs-bluetooth.txt b/Documentation/devicetree/bindings/net/rtl8723bs-bluetooth.txt > > > > new file mode 100644 > > > > index 000000000000..8357f242ae4c > > > > --- /dev/null > > > > +++ b/Documentation/devicetree/bindings/net/rtl8723bs-bluetooth.txt > > > > @@ -0,0 +1,35 @@ > > > > +RTL8723BS/RTL8723CS Bluetooth > > > > +--------------------- > > > > + > > > > +RTL8723CS/RTL8723CS is WiFi + BT chip. WiFi part is connected over SDIO, while > > > > +BT is connected over serial. It speaks H5 protocol with few extra commands > > > > +to upload firmware and change module speed. > > > > + > > > > +Required properties: > > > > + > > > > + - compatible: should be one of the following: > > > > + * "realtek,rtl8723bs-bt" > > > > + * "realtek,rtl8723cs-bt" > > > > +Optional properties: > > > > + > > > > + - device-wake-gpios: GPIO specifier, used to wakeup the BT module (active high) > > > > + - enable-gpios: GPIO specifier, used to enable the BT module (active high) > > > > + - host-wake-gpios: GPIO specifier, used to wakeup the host processor (active high) > > > > + - firmware-postfix: firmware postfix to be used for firmware config > > > > > > How is this used? > > > > rtl8723bs-bt needs 2 firmware binaries -- one is actual firmware, > > another is firmware config which is specific to the board. If > > firmware-postfix is specified, driver appends it to the name of config > > and requests board-specific config while loading firmware. I.e. if > > 'pine64' is specified as firmware-postfix driver will load > > rtl8723bs_config-pine64.bin. > > We already have 'firmware-name' defined and I'd prefer not to have > another way to do things. The difference is just you have to give the > full filename. OK > Also, on other chips with board specific config blobs, there's been > some discussion of converting those to DT properties. That depends on > you knowing what's in the blob and having a reasonable number of > parameter to make properties. We'd have to RE binary format of this config first. > Rob
