ARM: S5P: Add platform helpers for camera GPIO configuration

Add functions for configuration of the parallel camera
bus pins on S5PV210 and Exynos4 SoC.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/arch/arm/mach-s5pv210/setup-fimc.c b/arch/arm/mach-s5pv210/setup-fimc.c
new file mode 100644
index 000000000000..54cc5b11be0b
--- /dev/null
+++ b/arch/arm/mach-s5pv210/setup-fimc.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co., Ltd.
+ *
+ * S5PV210 camera interface GPIO configuration.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <plat/gpio-cfg.h>
+#include <plat/camport.h>
+
+int s5pv210_fimc_setup_gpio(enum s5p_camport_id id)
+{
+	u32 gpio8, gpio5;
+	int ret;
+
+	switch (id) {
+	case S5P_CAMPORT_A:
+		gpio8 = S5PV210_GPE0(0);
+		gpio5 = S5PV210_GPE1(0);
+		break;
+
+	case S5P_CAMPORT_B:
+		gpio8 = S5PV210_GPJ0(0);
+		gpio5 = S5PV210_GPJ1(0);
+		break;
+
+	default:
+		WARN(1, "Wrong camport id: %d\n", id);
+		return -EINVAL;
+	}
+
+	ret = s3c_gpio_cfgall_range(gpio8, 8, S3C_GPIO_SFN(2),
+				    S3C_GPIO_PULL_UP);
+	if (ret)
+		return ret;
+
+	return s3c_gpio_cfgall_range(gpio5, 5, S3C_GPIO_SFN(2),
+				     S3C_GPIO_PULL_UP);
+}