ARM: S5PC1xx: add platform helpers for s3c-fb device

Samsung S5PC100 has LCD-controller compatible with the one known from
previous SoCs series. Add required platform setup and support code that
it can be used with s3c-fb driver.

Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 49 insertions, 0 deletions

diff --git a/arch/arm/plat-s5pc1xx/setup-fb-24bpp.c b/arch/arm/plat-s5pc1xx/setup-fb-24bpp.c
new file mode 100644
index 000000000000..1a63768a9a2e
--- /dev/null
+++ b/arch/arm/plat-s5pc1xx/setup-fb-24bpp.c
@@ -0,0 +1,49 @@
+/*
+ * linux/arch/arm/plat-s5pc100/setup-fb-24bpp.c
+ *
+ * Copyright 2009 Samsung Electronics
+ *
+ * Base S5PC1XX setup information for 24bpp LCD framebuffer
+ *
+ * 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/kernel.h>
+#include <linux/types.h>
+#include <linux/fb.h>
+#include <linux/gpio.h>
+
+#include <mach/regs-fb.h>
+#include <mach/map.h>
+#include <plat/fb.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-s5pc1xx.h>
+
+#define DISR_OFFSET     0x7008
+
+void s5pc100_fb_gpio_setup_24bpp(void)
+{
+        unsigned int gpio = 0;
+
+        for (gpio = S5PC100_GPF0(0); gpio <= S5PC100_GPF0(7); gpio++) {
+                s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+                s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+        }
+
+        for (gpio = S5PC100_GPF1(0); gpio <= S5PC100_GPF1(7); gpio++) {
+                s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+                s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+        }
+
+        for (gpio = S5PC100_GPF2(0); gpio <= S5PC100_GPF2(7); gpio++) {
+                s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+                s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+        }
+
+        for (gpio = S5PC100_GPF3(0); gpio <= S5PC100_GPF3(3); gpio++) {
+                s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+                s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+        }
+}