Dear: @tenk.wang, @jasonl
I want to make SPI(or SPICC) to be enabled on S905D3 with android 9.0, but it doesn’t work. Would you tell me how to do it?
I have tried below:
Set “spicc0” and “spicc1” in file “kvim3l.dts”, like below:
&spicc0{
status = "okay";
};
&spicc1{
status = "okay";
};
Set the environment variable “spi_state” to “1”, in bootloader
Even so the function “meson_spicc_probe” of “spi_meson-spicc.c” doesn’t be called.
In addition, I had asked Frank , and received response. It ask me to follow the How To Use Device Tree Overlay, and enable SPI with overlays. But there is not /boot in file system of Andorid 9.0.
Dear @jasonl
Thanks for your answer.
I have tried, but it doesn’t work. Is there any other reason can make the SPI disable?
By the way, may I ask you, what is the effect of “spi_state” the environment variable of bootloader.