From: Mark Brown Date: Wed, 29 Jun 2022 14:43:11 +0000 (+0100) Subject: spi support for Exynos Auto v9 SoC X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0dbc49476ac7226130c79119f3f0d88e964880c0;p=linux.git spi support for Exynos Auto v9 SoC Merge series from Chanho Park : Add to support Exynos Auto v9 SoC's spi. By supporting USI(Universal Serial Interface) mode, the SoC can support up to 12 spi ports. Thus, we need to increase MAX_SPI_PORTS from 6 to 12. The spi of the SoC can support loopback mode unlike previous exynos SoCs. To separate the feature, we need to add .has_loopback to the s3c64xx_spi_port_config. Furthermore, it uses 4 as the default internal clock divider. We also need to clk_div field of the structure and assign "2" as the default value to the existing SoC's port config. Device tree definitions of exynosautov9-spi will be added in separated patchset to include usi(i2c/uart/spi) nodes all together. --- 0dbc49476ac7226130c79119f3f0d88e964880c0