ARM: OMAP: 5912 OSK GPIO updates

Start cleaning up GPIO handling for OMAP5912 OSK board:

 - Initialize GPIOs using the cross-platform calls, not the old
   OMAP-private ones.

 - Move touchscreen setup out of ads7846 code into board-specfic
   setup code, where it belongs.

This doesn't depend on the patches to update OMAP to use the
gpiolib implementation framework.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

2 files changed, 17 insertions, 53 deletions

diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index 5279e35a8aec..dd9ece8f409f 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -198,7 +198,7 @@ static struct i2c_board_info __initdata osk_i2c_board_info[] = {
 
 static void __init osk_init_smc91x(void)
 {
-        if ((omap_request_gpio(0)) < 0) {
+        if ((gpio_request(0, "smc_irq")) < 0) {
                 printk("Error requesting gpio 0 for smc91x irq\n");
                 return;
         }
@@ -210,7 +210,7 @@ static void __init osk_init_smc91x(void)
 static void __init osk_init_cf(void)
 {
         omap_cfg_reg(M7_1610_GPIO62);
-        if ((omap_request_gpio(62)) < 0) {
+        if ((gpio_request(62, "cf_irq")) < 0) {
                 printk("Error requesting gpio 62 for CF irq\n");
                 return;
         }
@@ -334,7 +334,7 @@ static struct platform_device *mistral_devices[] __initdata = {
 
 static int mistral_get_pendown_state(void)
 {
-        return !omap_get_gpio_datain(4);
+        return !gpio_get_value(4);
 }
 
 static const struct ads7846_platform_data mistral_ts_info = {
@@ -396,25 +396,31 @@ static void __init osk_mistral_init(void)
         omap_cfg_reg(W14_1610_CCP_DATAP);
 
         /* CAM_PWDN */
-        if (omap_request_gpio(11) == 0) {
+        if (gpio_request(11, "cam_pwdn") == 0) {
                 omap_cfg_reg(N20_1610_GPIO11);
-                omap_set_gpio_direction(11, 0 /* out */);
-                omap_set_gpio_dataout(11, 0 /* off */);
+                gpio_direction_output(11, 0);
         } else
                 pr_debug("OSK+Mistral: CAM_PWDN is awol\n");
 
 
         /* omap_cfg_reg(P19_1610_GPIO6); */     /* BUSY */
+        gpio_request(6, "ts_busy");
+        gpio_direction_input(6);
+
         omap_cfg_reg(P20_1610_GPIO4);   /* PENIRQ */
+        gpio_request(4, "ts_int");
+        gpio_direction_input(4);
         set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING);
+
         spi_register_board_info(mistral_boardinfo,
                         ARRAY_SIZE(mistral_boardinfo));
 
         /* the sideways button (SW1) is for use as a "wakeup" button */
         omap_cfg_reg(N15_1610_MPUIO2);
-        if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
+        if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) {
                 int ret = 0;
-                omap_set_gpio_direction(OMAP_MPUIO(2), 1);
+
+                gpio_direction_input(OMAP_MPUIO(2));
                 set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
 #ifdef  CONFIG_PM
                 /* share the IRQ in case someone wants to use the
@@ -425,7 +431,7 @@ static void __init osk_mistral_init(void)
                                 IRQF_SHARED, "mistral_wakeup",
                                 &osk_mistral_wake_interrupt);
                 if (ret != 0) {
-                        omap_free_gpio(OMAP_MPUIO(2));
+                        gpio_free(OMAP_MPUIO(2));
                         printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
                                 ret);
                 } else
@@ -438,10 +444,8 @@ static void __init osk_mistral_init(void)
          * board, like the touchscreen, EEPROM, and wakeup (!) switch.
          */
         omap_cfg_reg(PWL);
-        if (omap_request_gpio(2) == 0) {
-                omap_set_gpio_direction(2, 0 /* out */);
-                omap_set_gpio_dataout(2, 1 /* on */);
-        }
+        if (gpio_request(2, "lcd_pwr") == 0)
+                gpio_direction_output(2, 1);
 
         platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices));
 }
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 57a1c28bf122..39573b91c8de 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -28,13 +28,6 @@
 #include <linux/spi/ads7846.h>
 #include <asm/irq.h>
 
-#ifdef  CONFIG_ARM
-#include <asm/mach-types.h>
-#ifdef  CONFIG_ARCH_OMAP
-#include <asm/arch/gpio.h>
-#endif
-#endif
-
 
 /*
  * This code has been heavily tested on a Nokia 770, and lightly
@@ -1174,31 +1167,6 @@ static struct spi_driver ads7846_driver = {
 
 static int __init ads7846_init(void)
 {
-        /* grr, board-specific init should stay out of drivers!! */
-
-#ifdef  CONFIG_ARCH_OMAP
-        if (machine_is_omap_osk()) {
-                /* GPIO4 = PENIRQ; GPIO6 = BUSY */
-                omap_request_gpio(4);
-                omap_set_gpio_direction(4, 1);
-                omap_request_gpio(6);
-                omap_set_gpio_direction(6, 1);
-        }
-        // also TI 1510 Innovator, bitbanging through FPGA
-        // also Nokia 770
-        // also Palm Tungsten T2
-#endif
-
-        // PXA:
-        // also Dell Axim X50
-        // also HP iPaq H191x/H192x/H415x/H435x
-        // also Intel Lubbock (additional to UCB1400; as temperature sensor)
-        // also Sharp Zaurus C7xx, C8xx (corgi/sheperd/husky)
-
-        // Atmel at91sam9261-EK uses ads7843
-
-        // also various AMD Au1x00 devel boards
-
         return spi_register_driver(&ads7846_driver);
 }
 module_init(ads7846_init);
@@ -1206,14 +1174,6 @@ module_init(ads7846_init);
 static void __exit ads7846_exit(void)
 {
         spi_unregister_driver(&ads7846_driver);
-
-#ifdef  CONFIG_ARCH_OMAP
-        if (machine_is_omap_osk()) {
-                omap_free_gpio(4);
-                omap_free_gpio(6);
-        }
-#endif
-
 }
 module_exit(ads7846_exit);