ARM: dts: Add MFC codec support for EXYNOS4 DT machines

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos4.dtsi

@@ -131,6 +131,14 @@
 		status = "disabled";
 	};
 
+	mfc: codec@13400000 {
+		compatible = "samsung,mfc-v5";
+		reg = <0x13400000 0x10000>;
+		interrupts = <0 94 0>;
+		samsung,power-domain = <&pd_mfc>;
+		status = "disabled";
+	};
+
 	serial@13800000 {
 		compatible = "samsung,exynos4210-uart";
 		reg = <0x13800000 0x100>;

arch/arm/mach-exynos/Kconfig

@@ -410,6 +410,7 @@ config MACH_EXYNOS4_DT
 	select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD
 	select PINCTRL
 	select PINCTRL_EXYNOS
+	select S5P_DEV_MFC
 	select USE_OF
 	help
 	  Machine support for Samsung Exynos4 machine with device tree enabled.

arch/arm/mach-exynos/mach-exynos4-dt.c

@@ -12,13 +12,16 @@
 */
 
 #include <linux/of_platform.h>
+#include <linux/of_fdt.h>
 #include <linux/serial_core.h>
+#include <linux/memblock.h>
 
 #include <asm/mach/arch.h>
 #include <mach/map.h>
 
 #include <plat/cpu.h>
 #include <plat/regs-serial.h>
+#include <plat/mfc.h>
 
 #include "common.h"
 
@@ -113,6 +116,7 @@ static const struct of_dev_auxdata exynos4_auxdata_lookup[] __initconst = {
 			"exynos-sysmmu.14", NULL), /* FIMC-LITE0(4x12) */
 	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x123C0000,
 			"exynos-sysmmu.15", NULL), /* FIMC-LITE1(4x12) */
+	OF_DEV_AUXDATA("samsung,mfc-v5", 0x13400000, "s5p-mfc", NULL),
 	{},
 };
 
@@ -135,6 +139,18 @@ static char const *exynos4_dt_compat[] __initdata = {
 	NULL
 };
 
+static void __init exynos4_reserve(void)
+{
+#ifdef CONFIG_S5P_DEV_MFC
+	struct s5p_mfc_dt_meminfo mfc_mem;
+
+	/* Reserve memory for MFC only if it's available */
+	mfc_mem.compatible = "samsung,mfc-v5";
+	if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem))
+		s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff,
+				mfc_mem.lsize);
+#endif
+}
 DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
 	/* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
 	.smp		= smp_ops(exynos_smp_ops),
@@ -145,4 +161,5 @@ DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
 	.init_time	= exynos4_timer_init,
 	.dt_compat	= exynos4_dt_compat,
 	.restart        = exynos4_restart,
+	.reserve	= exynos4_reserve,
 MACHINE_END