This commit introduces the possibility to have multiple
device nodes attached to the same I2S controller. For this
purpose a new i2s-device.yaml description has been introduced
with the a 'reg' property to define the logic number of the
device. For example, if two microphones are attached to the
same I2S port (say 1) to achieve stereo audio, the two microphones
might be described in dts as:
&i2s1 {
status = "ok";
mic@0 {
compatible = "...";
reg = <0>;
label = "...";
};
mic@1 {
compatible = "...";
reg = <1>;
label = "...";
};
};
Signed-off-by: Armando Visconti <armando.visconti@st.com>
Add I2S bus initial support to stm32f4 SOC family.
On stm32f4 the I2S shares same controller as SPI, so
the declarations have been adapted from SPI ones.
Signed-off-by: Armando Visconti <armando.visconti@st.com>
To move forward and remove use of Kconfig in dts files lets just create
SoC specific dtsi files that the boards can include. We also seperate
out the F4 dtsi files into their own dir.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Armando Visconti