On Thu, Feb 13, 2025 at 07:05:22AM +0000, Tudor Ambarus wrote: > gs101 mandates 32-bit accesses too. Also in exynos990 [0] > > the SPI node where it will have to be specified in DT (Device Tree). > > gs101 has some USI nodes that can work only in uart mode and indeed the > fifosize there is 256. Does downstream define SPI nodes with 256 bytes > FIFOs? Can you please point me the the downstream code? > Yes, Exynos990 has SPI nodes with 256-byte FIFOs, and you can see this in the downstream kernel. Here are some relevant references: - SPI8: [1] - SPI9: [2] - SPI10: [3] Best regards, Denzeel [0] https://github.com/pascua28/android_kernel_samsung_s20fe/blob/3be539e9cd22b89ba3cc8282945a0c46ff27341d/drivers/spi/spi-s3c64xx.c#L767 [1] https://github.com/pascua28/android_kernel_samsung_s20fe/blob/3be539e9cd22b89ba3cc8282945a0c46ff27341d/arch/arm64/boot/dts/exynos/exynos9830-usi.dtsi#L1641 [2] https://github.com/pascua28/android_kernel_samsung_s20fe/blob/3be539e9cd22b89ba3cc8282945a0c46ff27341d/arch/arm64/boot/dts/exynos/exynos9830-usi.dtsi#L1662 [3] https://github.com/pascua28/android_kernel_samsung_s20fe/blob/3be539e9cd22b89ba3cc8282945a0c46ff27341d/arch/arm64/boot/dts/exynos/exynos9830-usi.dtsi#L1683
