Unverified Commit 11d50d85 authored by Chanho Park's avatar Chanho Park Committed by Mark Brown
Browse files

spi: s3c64xx: add spi port configuration for Exynos Auto v9 SoC 



Add exynosautov9 spi port configuration. It supports up to 12 spis so
MAX_SPI_PORTS should be increased from 6 to 12.
It has DIV_4 as the default internal clock divider and an internal
loopback mode to run a loopback test.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: default avatarAndi Shyti <andi@etezian.org>
Signed-off-by: default avatarChanho Park <chanho61.park@samsung.com>
Link: https://lore.kernel.org/r/20220629102304.65712-5-chanho61.park@samsung.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent bfcd27dc

drivers/spi/spi-s3c64xx.c

+17 −1
Original line number Diff line number Diff line
@@ -18,7 +18,7 @@ 


#include <linux/platform_data/spi-s3c64xx.h>



#define MAX_SPI_PORTS		6

#define MAX_SPI_PORTS		12

#define S3C64XX_SPI_QUIRK_POLL		(1 << 0)

#define S3C64XX_SPI_QUIRK_CS_AUTO	(1 << 1)

#define AUTOSUSPEND_TIMEOUT	2000
@@ -1451,6 +1451,19 @@ static const struct s3c64xx_spi_port_config exynos5433_spi_port_config = { 
	.quirks		= S3C64XX_SPI_QUIRK_CS_AUTO,

};



static const struct s3c64xx_spi_port_config exynosautov9_spi_port_config = {

	.fifo_lvl_mask	= { 0x1ff, 0x1ff, 0x7f, 0x7f, 0x7f, 0x7f, 0x1ff, 0x7f,

			    0x7f, 0x7f, 0x7f, 0x7f},

	.rx_lvl_offset	= 15,

	.tx_st_done	= 25,

	.clk_div	= 4,

	.high_speed	= true,

	.clk_from_cmu	= true,

	.clk_ioclk	= true,

	.has_loopback	= true,

	.quirks		= S3C64XX_SPI_QUIRK_CS_AUTO,

};



static const struct s3c64xx_spi_port_config fsd_spi_port_config = {

	.fifo_lvl_mask	= { 0x7f, 0x7f, 0x7f, 0x7f, 0x7f},

	.rx_lvl_offset	= 15,
@@ -1492,6 +1505,9 @@ static const struct of_device_id s3c64xx_spi_dt_match[] = { 
	{ .compatible = "samsung,exynos5433-spi",

			.data = (void *)&exynos5433_spi_port_config,

	},

	{ .compatible = "samsung,exynosautov9-spi",

			.data = (void *)&exynosautov9_spi_port_config,

	},

	{ .compatible = "tesla,fsd-spi",

			.data = (void *)&fsd_spi_port_config,

	},