spi: s3c64xx: Add spi port configuration for Tesla FSD SoC

Add compatible and port configuration for spi controller
for Tesla Full Self-Driving SoC.

Cc: linux-fsd@tesla.com
Signed-off-by: Aswani Reddy <aswani.reddy@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Andi Shyti <andi@etezian.org>
Link: https://lore.kernel.org/r/20220308121640.27344-2-alim.akhtar@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 386550f..423518b 100644 (file)
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1440,6 +1440,16 @@ static const struct s3c64xx_spi_port_config exynos5433_spi_port_config = {
        .quirks         = S3C64XX_SPI_QUIRK_CS_AUTO,
 };
 
+static struct s3c64xx_spi_port_config fsd_spi_port_config = {
+       .fifo_lvl_mask  = { 0x7f, 0x7f, 0x7f, 0x7f, 0x7f},
+       .rx_lvl_offset  = 15,
+       .tx_st_done     = 25,
+       .high_speed     = true,
+       .clk_from_cmu   = true,
+       .clk_ioclk      = false,
+       .quirks         = S3C64XX_SPI_QUIRK_CS_AUTO,
+};
+
 static const struct platform_device_id s3c64xx_spi_driver_ids[] = {
        {
                .name           = "s3c2443-spi",
@@ -1470,6 +1480,9 @@ static const struct of_device_id s3c64xx_spi_dt_match[] = {
        { .compatible = "samsung,exynos5433-spi",
                        .data = (void *)&exynos5433_spi_port_config,
        },
+       { .compatible = "tesla,fsd-spi",
+                       .data = (void *)&fsd_spi_port_config,
+       },
        { },
 };
 MODULE_DEVICE_TABLE(of, s3c64xx_spi_dt_match);