we are using stm32mp157f-ev1 and we build the weston image for this board.
We want to enable the SPI-1 on this board
we had applied the following patch to enable the SPI-1
+&spi1 {
+ status = "okay";
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&spi1_pins_a>;
+ pinctrl-1 = <&spi1_sleep_pins_a>;
+ cs-gpios = <&gpioz 3 O>;
+ timeouts = <3>;
+
+ spidev@0 {
+ status = "okay";
+ compatible = "linux,spidev";
+ spi-max-frequency = <25000000>;
+ reg = <0>;
+ };
+};
After applying this patch file we get the following information about the SPI in boot logs.
root@stm32mp15-eval:~# dmesg | grep spi
[ 2.296064] spi-nor spi0.0: mx66l51235f (65536 Kbytes)
[ 2.302910] spi-nor spi0.1: mx66l51235f (65536 Kbytes)
[ 24.360006] spi_master spi1: /soc/spi@44004000/spidev@0 has no valid 'reg' property (-22)
[ 24.366865] spi_master spi1: Failed to create SPI device for /soc/spi@44004000/spidev@0
[ 24.427547] spi_stm32 44004000.spi: driver initialized
and in devices we can also see the SPI1
./devices:
total 0
lrwxrwxrwx 1 root root 0 Jan 1 2000 spi0.0 -> ../../../devices/platform/soc/58003000.spi/spi_master/spi0/spi0.0
lrwxrwxrwx 1 root root 0 Jan 1 2000 spi0.1 -> ../../../devices/platform/soc/58003000.spi/spi_master/spi0/spi0.1
lrwxrwxrwx 1 root root 0 Sep 21 12:11 spi1.0 -> ../../../devices/platform/soc/44004000.spi/spi_master/spi1/spi1.0
But we are not able to see any information in /dev.
What i am assuming that in /dev, there should be spidevx.y so that it can be used by user application.
Please suggest what we are missing
