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, 13 insertions, 26 deletions

diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index 7c79e7b..f8b2908 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -54,8 +54,6 @@ int exynos_init(void)
 void i2c_init_board(void)
 {
 	int err;
-	struct exynos4_gpio_part2 *gpio2 =
-		(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
 
 	/* I2C_5 -> PMIC */
 	err = exynos_pinmux_config(PERIPH_ID_I2C5, PINMUX_FLAG_NONE);
@@ -65,8 +63,8 @@ void i2c_init_board(void)
 	}
 
 	/* I2C_8 -> FG */
-	s5p_gpio_direction_output(&gpio2->y4, 0, 1);
-	s5p_gpio_direction_output(&gpio2->y4, 1, 1);
+	gpio_direction_output(EXYNOS4_GPIO_Y40, 1);
+	gpio_direction_output(EXYNOS4_GPIO_Y41, 1);
 }
 
 static void trats_low_power_mode(void)
@@ -347,21 +345,19 @@ int exynos_power_init(void)
 
 static unsigned int get_hw_revision(void)
 {
-	struct exynos4_gpio_part1 *gpio =
-		(struct exynos4_gpio_part1 *)samsung_get_base_gpio_part1();
 	int hwrev = 0;
 	int i;
 
 	/* hw_rev[3:0] == GPE1[3:0] */
-	for (i = 0; i < 4; i++) {
-		s5p_gpio_cfg_pin(&gpio->e1, i, GPIO_INPUT);
-		s5p_gpio_set_pull(&gpio->e1, i, GPIO_PULL_NONE);
+	for (i = EXYNOS4_GPIO_E10; i < EXYNOS4_GPIO_E14; i++) {
+		gpio_cfg_pin(i, S5P_GPIO_INPUT);
+		gpio_set_pull(i, S5P_GPIO_PULL_NONE);
 	}
 
 	udelay(1);
 
 	for (i = 0; i < 4; i++)
-		hwrev |= (s5p_gpio_get_value(&gpio->e1, i) << i);
+		hwrev |= (gpio_get_value(EXYNOS4_GPIO_E10 + i) << i);
 
 	debug("hwrev 0x%x\n", hwrev);
 
@@ -444,11 +440,8 @@ int usb_cable_connected(void)
 
 static void pmic_reset(void)
 {
-	struct exynos4_gpio_part2 *gpio =
-		(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
-
-	s5p_gpio_direction_output(&gpio->x0, 7, 1);
-	s5p_gpio_set_pull(&gpio->x2, 7, GPIO_PULL_NONE);
+	gpio_direction_output(EXYNOS4_GPIO_X07, 1);
+	gpio_set_pull(EXYNOS4_GPIO_X27, S5P_GPIO_PULL_NONE);
 }
 
 static void board_clock_init(void)
@@ -525,12 +518,9 @@ static void board_power_init(void)
 
 static void exynos_uart_init(void)
 {
-	struct exynos4_gpio_part2 *gpio2 =
-		(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
-
 	/* UART_SEL GPY4[7] (part2) at EXYNOS4 */
-	s5p_gpio_set_pull(&gpio2->y4, 7, GPIO_PULL_UP);
-	s5p_gpio_direction_output(&gpio2->y4, 7, 1);
+	gpio_set_pull(EXYNOS4_GPIO_Y47, S5P_GPIO_PULL_UP);
+	gpio_direction_output(EXYNOS4_GPIO_Y47, 1);
 }
 
 int exynos_early_init_f(void)
@@ -546,14 +536,11 @@ int exynos_early_init_f(void)
 
 void exynos_reset_lcd(void)
 {
-	struct exynos4_gpio_part2 *gpio2 =
-		(struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2();
-
-	s5p_gpio_direction_output(&gpio2->y4, 5, 1);
+	gpio_direction_output(EXYNOS4_GPIO_Y45, 1);
 	udelay(10000);
-	s5p_gpio_direction_output(&gpio2->y4, 5, 0);
+	gpio_direction_output(EXYNOS4_GPIO_Y45, 0);
 	udelay(10000);
-	s5p_gpio_direction_output(&gpio2->y4, 5, 1);
+	gpio_direction_output(EXYNOS4_GPIO_Y45, 1);
 }
 
 int lcd_power(void)