ARM: s3c24xx: get rid of custom <mach/gpio.h>

This isolates the custom S3C24xx GPIO definition table to
<linux/platform_data/gpio-samsung-s3x24xx.h> as this is
used in a few different places in the kernel, removing the
need to depend on the implicit inclusion of <mach/gpio.h>
from <linux/gpio.h> and thus getting rid of a few nasty
cross-dependencies.

We also delete the nifty CONFIG_S3C24XX_GPIO_EXTRA stuff.
The biggest this can ever be for the S3C24XX is
CONFIG_S3C24XX_GPIO_EXTRA = 128, and then for CPU_S3C2443 or
CPU_S3C2416 32*12 GPIOs are added, so 32*12+128 = 512
is the absolute roof value on this platform. So we set
the size of ARCH_NR_GPIO to this and the GPIOs array will
fit any S3C24XX platform, as per pattern from other archs.

ChangeLog v2->v3:
- Move the movement of the S3C64XX gpio.h file out of
  this patch and into the follow-up patch where it belongs.
ChangeLog v1->v2:
- Added an #ifdef ARCH_S3C24XX around the header inclusion
  in drivers/gpio/gpio-samsung.c as we would otherwise
  have colliding definitions when compiling S3C64XX.
- Rename inclusion guard in the header file.

Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: linux-samsung-soc@vger.kernel.org
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 106 insertions, 0 deletions

diff --git a/include/linux/platform_data/gpio-samsung-s3c24xx.h b/include/linux/platform_data/gpio-samsung-s3c24xx.h
new file mode 100644
index 000000000000..5ce750c84a14
--- /dev/null
+++ b/include/linux/platform_data/gpio-samsung-s3c24xx.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2008 Simtec Electronics
+ *	http://armlinux.simtec.co.uk/
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2410 - GPIO lib support
+ *
+ * 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.
+*/
+
+/* some boards require extra gpio capacity to support external
+ * devices that need GPIO.
+ */
+
+#ifndef GPIO_SAMSUNG_S3C24XX_H
+#define GPIO_SAMSUNG_S3C24XX_H
+
+/*
+ * GPIO sizes for various SoCs:
+ *
+ *   2410 2412 2440 2443 2416
+ *             2442
+ *   ---- ---- ---- ---- ----
+ * A  23   22   25   16   25
+ * B  11   11   11   11   9
+ * C  16   15   16   16   16
+ * D  16   16   16   16   16
+ * E  16   16   16   16   16
+ * F  8    8    8    8    8
+ * G  16   16   16   16   8
+ * H  11   11   9    15   15
+ * J  --   --   13   16   --
+ * K  --   --   --   --   16
+ * L  --   --   --   15   7
+ * M  --   --   --   2    2
+ */
+
+/* GPIO bank sizes */
+
+#define S3C2410_GPIO_A_NR	(32)
+#define S3C2410_GPIO_B_NR	(32)
+#define S3C2410_GPIO_C_NR	(32)
+#define S3C2410_GPIO_D_NR	(32)
+#define S3C2410_GPIO_E_NR	(32)
+#define S3C2410_GPIO_F_NR	(32)
+#define S3C2410_GPIO_G_NR	(32)
+#define S3C2410_GPIO_H_NR	(32)
+#define S3C2410_GPIO_J_NR	(32)	/* technically 16. */
+#define S3C2410_GPIO_K_NR	(32)	/* technically 16. */
+#define S3C2410_GPIO_L_NR	(32)	/* technically 15. */
+#define S3C2410_GPIO_M_NR	(32)	/* technically 2. */
+
+#if CONFIG_S3C_GPIO_SPACE != 0
+#error CONFIG_S3C_GPIO_SPACE cannot be nonzero at the moment
+#endif
+
+#define S3C2410_GPIO_NEXT(__gpio) \
+	((__gpio##_START) + (__gpio##_NR) + CONFIG_S3C_GPIO_SPACE + 0)
+
+#ifndef __ASSEMBLY__
+
+enum s3c_gpio_number {
+	S3C2410_GPIO_A_START = 0,
+	S3C2410_GPIO_B_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_A),
+	S3C2410_GPIO_C_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_B),
+	S3C2410_GPIO_D_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_C),
+	S3C2410_GPIO_E_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_D),
+	S3C2410_GPIO_F_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_E),
+	S3C2410_GPIO_G_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_F),
+	S3C2410_GPIO_H_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_G),
+	S3C2410_GPIO_J_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_H),
+	S3C2410_GPIO_K_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_J),
+	S3C2410_GPIO_L_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_K),
+	S3C2410_GPIO_M_START = S3C2410_GPIO_NEXT(S3C2410_GPIO_L),
+};
+
+#endif /* __ASSEMBLY__ */
+
+/* S3C2410 GPIO number definitions. */
+
+#define S3C2410_GPA(_nr)	(S3C2410_GPIO_A_START + (_nr))
+#define S3C2410_GPB(_nr)	(S3C2410_GPIO_B_START + (_nr))
+#define S3C2410_GPC(_nr)	(S3C2410_GPIO_C_START + (_nr))
+#define S3C2410_GPD(_nr)	(S3C2410_GPIO_D_START + (_nr))
+#define S3C2410_GPE(_nr)	(S3C2410_GPIO_E_START + (_nr))
+#define S3C2410_GPF(_nr)	(S3C2410_GPIO_F_START + (_nr))
+#define S3C2410_GPG(_nr)	(S3C2410_GPIO_G_START + (_nr))
+#define S3C2410_GPH(_nr)	(S3C2410_GPIO_H_START + (_nr))
+#define S3C2410_GPJ(_nr)	(S3C2410_GPIO_J_START + (_nr))
+#define S3C2410_GPK(_nr)	(S3C2410_GPIO_K_START + (_nr))
+#define S3C2410_GPL(_nr)	(S3C2410_GPIO_L_START + (_nr))
+#define S3C2410_GPM(_nr)	(S3C2410_GPIO_M_START + (_nr))
+
+#include <plat/gpio-cfg.h>
+
+#ifdef CONFIG_CPU_S3C244X
+#define S3C_GPIO_END	(S3C2410_GPJ(0) + 32)
+#elif defined(CONFIG_CPU_S3C2443) || defined(CONFIG_CPU_S3C2416)
+#define S3C_GPIO_END	(S3C2410_GPM(0) + 32)
+#else
+#define S3C_GPIO_END	(S3C2410_GPH(0) + 32)
+#endif
+
+#endif /* GPIO_SAMSUNG_S3C24XX_H */