[PATCH v3 3/3] sandbox: add i2c and spi libftdi1 bit-bang example

[Antony Pavlov]

On Thu, 25 Jan 2018 08:12:36 +0100
Sascha Hauer <s.hauer at pengutronix.de> wrote:

> On Mon, Jan 22, 2018 at 12:59:18PM +0300, Antony Pavlov wrote:
> > Make necessary changes in sandbox_defconfig:
> > enable gpio, spi, i2c and led stuff.
> > 
> > Usage:
> > 
> >   barebox$ make sandbox_defconfig
> >   barebox$ sed -i "s/# CONFIG_GPIO_LIBFTDI1.*$/CONFIG_GPIO_LIBFTDI1=y/" .config
> > 
> >   # edit arch/sandbox/dts/sandbox-libftdi-example.dtsi
> > 
> >   barebox$ echo '#include "sandbox-libftdi-example.dtsi"' >> arch/sandbox/dts/sandbox.dts
> >   barebox$ make
> >   barebox$ sudo ./barebox -d arch/sandbox/dts/sandbox.dtb
> > 
> > Signed-off-by: Antony Pavlov <antonynpavlov at gmail.com>
> > ---
> >  arch/sandbox/configs/sandbox_defconfig        | 21 ++++++-
> >  arch/sandbox/dts/sandbox-libftdi-example.dtsi | 80 +++++++++++++++++++++++++++
> >  2 files changed, 100 insertions(+), 1 deletion(-)
> > 
> > +++ b/arch/sandbox/dts/sandbox-libftdi-example.dtsi
> > @@ -0,0 +1,80 @@
> > +#include <dt-bindings/gpio/gpio.h>
> > +
> > +/ {
> > +	gpio0: gpio at 0 {
> > +		compatible = "barebox,libftdi1-gpio";
> > +		usb,id_vendor = <0x0403>;
> > +		usb,id_product = <0x6010>;
> > +
> > +		/*
> > +		 * The serial number can be used to select
> > +		 * a specific device in case more than
> > +		 * one is connected to the host.
> > +		 */
> > +		/* usb,i_serial_number = "20180120"; */
> > +
> > +		/* use ACBUS[7:0] */
> > +		gpio-controller;
> > +		#gpio-cells = <2>;
> > +
> > +		status = "okay";
> > +	};
> > +
> > +	spi0: spi0 {
> > +		compatible = "spi-gpio";
> > +		#address-cells = <1>;
> > +		#size-cells = <0>;
> > +
> > +		gpio-sck  = <&gpio0 0 GPIO_ACTIVE_HIGH>;
> > +		gpio-mosi = <&gpio0 1 GPIO_ACTIVE_HIGH>;
> > +		gpio-miso = <&gpio0 2 GPIO_ACTIVE_HIGH>;
> > +		cs-gpios  = <&gpio0 3 GPIO_ACTIVE_HIGH>;
> > +
> > +		num-chipselects = <1>;
> > +
> > +		status = "disabled";
> 
> Given that this is an example which is not used unless you include it
> manually I think you can remove the status properties.
> 
> Otherwise this series looks fine to me. I can remove the properties
> while applying if you like.

Without status properties this file will be more fail-safe.
Please remove the properties and apply the patches.

Please note that this patcheseries does not use parseopt_*() functions
so nobody uses the commit 'parseopt: introduce parseopt_u16() and parseopt_str()'.

-- 
Best regards,
  Antony Pavlov