clk: samsung: fsd: Add initial clock support

Add initial clock support for FSD (Full Self-Driving) SoC
which is required to bring-up platforms based on this SoC.

Cc: linux-fsd@tesla.com
Signed-off-by: Jayati Sahu <jayati.sahu@samsung.com>
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Link: https://lore.kernel.org/r/20220124141644.71052-5-alim.akhtar@samsung.comSigned-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

drivers/clk/samsung/Kconfig

@@ -11,6 +11,7 @@ config COMMON_CLK_SAMSUNG
 	select EXYNOS_5410_COMMON_CLK if ARM && SOC_EXYNOS5410
 	select EXYNOS_5420_COMMON_CLK if ARM && SOC_EXYNOS5420
 	select EXYNOS_ARM64_COMMON_CLK if ARM64 && ARCH_EXYNOS
+	select TESLA_FSD_COMMON_CLK if ARM64 && ARCH_TESLA_FSD
 
 config S3C64XX_COMMON_CLK
 	bool "Samsung S3C64xx clock controller support" if COMPILE_TEST
@@ -124,3 +125,10 @@ config S3C2443_COMMON_CLK
 	help
 	  Support for the clock controller present on the Samsung
 	  S3C2416/S3C2443 SoCs. Choose Y here only if you build for this SoC.
+
+config TESLA_FSD_COMMON_CLK
+	bool "Tesla FSD clock controller support" if COMPILE_TEST
+	depends on COMMON_CLK_SAMSUNG
+	help
+	  Support for the clock controller present on the Tesla FSD SoC.
+	  Choose Y here only if you build for this SoC.

drivers/clk/samsung/Makefile

@@ -26,3 +26,4 @@ obj-$(CONFIG_S3C2412_COMMON_CLK)+= clk-s3c2412.o
 obj-$(CONFIG_S3C2443_COMMON_CLK)+= clk-s3c2443.o
 obj-$(CONFIG_S3C64XX_COMMON_CLK)	+= clk-s3c64xx.o
 obj-$(CONFIG_S5PV210_COMMON_CLK)	+= clk-s5pv210.o clk-s5pv210-audss.o
+obj-$(CONFIG_TESLA_FSD_COMMON_CLK)	+= clk-fsd.o

drivers/clk/samsung/clk-pll.c

@@ -1469,6 +1469,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
 	case pll_1450x:
 	case pll_1451x:
 	case pll_1452x:
+	case pll_142xx:
 		pll->enable_offs = PLL35XX_ENABLE_SHIFT;
 		pll->lock_offs = PLL35XX_LOCK_STAT_SHIFT;
 		if (!pll->rate_table)

drivers/clk/samsung/clk-pll.h

@@ -39,6 +39,7 @@ enum samsung_pll_type {
 	pll_1460x,
 	pll_0822x,
 	pll_0831x,
+	pll_142xx,
 };
 
 #define PLL_RATE(_fin, _m, _p, _s, _k, _ks) \