S5P: Exynos: Add GPIO pin numbering and rename definitions

This patch includes following changes :
* Adds gpio pin numbering support for EXYNOS SOCs.
  To have consistent 0..n-1 GPIO numbering the banks are divided
  into different parts where ever they have holes in them.

* Rename GPIO definitions from GPIO_... to S5P_GPIO_...
  These changes were done to enable cmd_gpio for EXYNOS and
  cmd_gpio has GPIO_INPUT same as s5p_gpio driver and hence
  getting a error during compilation.

* Adds support for name to gpio conversion in s5p_gpio to enable
  gpio command EXYNOS SoCs. Function has been added to asm/gpio.h
  to decode the input gpio name to gpio number.
  Example: SMDK5420 # gpio set gpa00

Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

1 files changed, 4 insertions, 7 deletions

diff --git a/board/samsung/arndale/arndale.c b/board/samsung/arndale/arndale.c
index 9efc355dab..ef88314f7d 100644
--- a/board/samsung/arndale/arndale.c
+++ b/board/samsung/arndale/arndale.c
@@ -16,17 +16,14 @@ DECLARE_GLOBAL_DATA_PTR;
 #ifdef CONFIG_USB_EHCI_EXYNOS
 int board_usb_init(int index, enum usb_init_type init)
 {
-	struct exynos5_gpio_part1 *gpio = (struct exynos5_gpio_part1 *)
-						samsung_get_base_gpio_part1();
-
 	/* Configure gpios for usb 3503 hub:
 	 * disconnect, toggle reset and connect
 	 */
-	s5p_gpio_direction_output(&gpio->d1, 7, 0);
-	s5p_gpio_direction_output(&gpio->x3, 5, 0);
+	gpio_direction_output(EXYNOS5_GPIO_D17, 0);
+	gpio_direction_output(EXYNOS5_GPIO_X35, 0);
 
-	s5p_gpio_direction_output(&gpio->x3, 5, 1);
-	s5p_gpio_direction_output(&gpio->d1, 7, 1);
+	gpio_direction_output(EXYNOS5_GPIO_X35, 1);
+	gpio_direction_output(EXYNOS5_GPIO_D17, 1);
 
 	return 0;
 }