[v3,2/3] spi: s3c64xx: Add spi port configuration for Tesla FSD SoC

Commit Message

Alim Akhtar Jan. 25, 2022, 3:16 a.m. UTC

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

Cc: [e-mail]
Signed-off-by: Aswani Reddy <[e-mail]>
Signed-off-by: Alim Akhtar <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Andi Shyti <[e-mail]>
---
 drivers/spi/spi-s3c64xx.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

Comments

Linus Walleij Jan. 28, 2022, 12:28 a.m. UTC | #1

On Tue, Jan 25, 2022 at 4:28 AM Alim Akhtar <[e-mail]> wrote:

> Add compatible and port configuration for spi controller
> for Tesla Full Self-Driving SoC.
>
> Cc: [e-mail]
> Signed-off-by: Aswani Reddy <[e-mail]>
> Signed-off-by: Alim Akhtar <[e-mail]>
> Reviewed-by: Krzysztof Kozlowski <[e-mail]>
> Reviewed-by: Andi Shyti <[e-mail]>

Reviewed-by: Linus Walleij <[e-mail]>

Now I however remember that there was some discussion around
the compatible naming. I do not especially care which naming we end
up with but just make sure the compatible naming is the same in
this compatible as in the rest of the platform.

Yours,
Linus Walleij

Patch

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 386550fca81c..423518bf0270 100644
--- 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);