omapfb: lcd_ams_delta: drive control lines over GPIO

Don't use Amstrad Delta custom I/O functions any longer, use GPIO API
instead.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/board-ams-delta.c

@@ -226,16 +226,6 @@ static struct gpio latch_gpios[] __initconst = {
 		.flags	= GPIOF_OUT_INIT_LOW,
 		.label	= "dockit2",
 	},
-	{
-		.gpio	= AMS_DELTA_GPIO_PIN_LCD_VBLEN,
-		.flags	= GPIOF_OUT_INIT_LOW,
-		.label	= "lcd_vblen",
-	},
-	{
-		.gpio	= AMS_DELTA_GPIO_PIN_LCD_NDISP,
-		.flags	= GPIOF_OUT_INIT_LOW,
-		.label	= "lcd_ndisp",
-	},
 	{
 		.gpio	= AMS_DELTA_GPIO_PIN_KEYBRD_PWR,
 		.flags	= GPIOF_OUT_INIT_LOW,

arch/arm/plat-omap/include/plat/board-ams-delta.h

@@ -28,8 +28,6 @@
 
 #if defined (CONFIG_MACH_AMS_DELTA)
 
-#define AMS_DELTA_LATCH2_LCD_VBLEN	0x0001
-#define AMS_DELTA_LATCH2_LCD_NDISP	0x0002
 #define AMD_DELTA_LATCH2_KEYBRD_PWR	0x0100
 #define AMD_DELTA_LATCH2_KEYBRD_DATA	0x0200
 #define AMD_DELTA_LATCH2_SCARD_RSTIN	0x0400

drivers/video/omap/lcd_ams_delta.c

@@ -25,6 +25,7 @@
 #include <linux/io.h>
 #include <linux/delay.h>
 #include <linux/lcd.h>
+#include <linux/gpio.h>
 
 #include <plat/board-ams-delta.h>
 #include <mach/hardware.h>
@@ -98,29 +99,41 @@ static struct lcd_ops ams_delta_lcd_ops = {
 
 /* omapfb panel section */
 
+static struct gpio _gpios[] __initconst_or_module = {
+	{
+		.gpio	= AMS_DELTA_GPIO_PIN_LCD_VBLEN,
+		.flags	= GPIOF_OUT_INIT_LOW,
+		.label	= "lcd_vblen",
+	},
+	{
+		.gpio	= AMS_DELTA_GPIO_PIN_LCD_NDISP,
+		.flags	= GPIOF_OUT_INIT_LOW,
+		.label	= "lcd_ndisp",
+	},
+};
+
 static int ams_delta_panel_init(struct lcd_panel *panel,
 		struct omapfb_device *fbdev)
 {
-	return 0;
+	return gpio_request_array(_gpios, ARRAY_SIZE(_gpios));
 }
 
 static void ams_delta_panel_cleanup(struct lcd_panel *panel)
 {
+	gpio_free_array(_gpios, ARRAY_SIZE(_gpios));
 }
 
 static int ams_delta_panel_enable(struct lcd_panel *panel)
 {
-	ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP,
-			AMS_DELTA_LATCH2_LCD_NDISP);
-	ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN,
-			AMS_DELTA_LATCH2_LCD_VBLEN);
+	gpio_set_value(AMS_DELTA_GPIO_PIN_LCD_NDISP, 1);
+	gpio_set_value(AMS_DELTA_GPIO_PIN_LCD_VBLEN, 1);
 	return 0;
 }
 
 static void ams_delta_panel_disable(struct lcd_panel *panel)
 {
-	ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN, 0);
-	ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP, 0);
+	gpio_set_value(AMS_DELTA_GPIO_PIN_LCD_VBLEN, 0);
+	gpio_set_value(AMS_DELTA_GPIO_PIN_LCD_NDISP, 0);
 }
 
 static unsigned long ams_delta_panel_get_caps(struct lcd_panel *panel)