Merge commit 'linus' into next

7 files changed, 92 insertions, 0 deletions

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index b4357c388d2e..1f0d66561bbe 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -31,6 +31,7 @@
 
 #include <mach/hardware.h>
 #include <mach/fb.h>
+#include <mach/ep93xx_keypad.h>
 
 #include <asm/mach/map.h>
 #include <asm/mach/time.h>
@@ -728,6 +729,82 @@ void __init ep93xx_register_fb(struct ep93xxfb_mach_info *data)
         platform_device_register(&ep93xx_fb_device);
 }
 
+
+/*************************************************************************
+ * EP93xx matrix keypad peripheral handling
+ *************************************************************************/
+static struct resource ep93xx_keypad_resource[] = {
+        {
+                .start  = EP93XX_KEY_MATRIX_PHYS_BASE,
+                .end    = EP93XX_KEY_MATRIX_PHYS_BASE + 0x0c - 1,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .start  = IRQ_EP93XX_KEY,
+                .end    = IRQ_EP93XX_KEY,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device ep93xx_keypad_device = {
+        .name                   = "ep93xx-keypad",
+        .id                     = -1,
+        .num_resources          = ARRAY_SIZE(ep93xx_keypad_resource),
+        .resource               = ep93xx_keypad_resource,
+};
+
+void __init ep93xx_register_keypad(struct ep93xx_keypad_platform_data *data)
+{
+        ep93xx_keypad_device.dev.platform_data = data;
+        platform_device_register(&ep93xx_keypad_device);
+}
+
+int ep93xx_keypad_acquire_gpio(struct platform_device *pdev)
+{
+        int err;
+        int i;
+
+        for (i = 0; i < 8; i++) {
+                err = gpio_request(EP93XX_GPIO_LINE_C(i), dev_name(&pdev->dev));
+                if (err)
+                        goto fail_gpio_c;
+                err = gpio_request(EP93XX_GPIO_LINE_D(i), dev_name(&pdev->dev));
+                if (err)
+                        goto fail_gpio_d;
+        }
+
+        /* Enable the keypad controller; GPIO ports C and D used for keypad */
+        ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_KEYS |
+                                 EP93XX_SYSCON_DEVCFG_GONK);
+
+        return 0;
+
+fail_gpio_d:
+        gpio_free(EP93XX_GPIO_LINE_C(i));
+fail_gpio_c:
+        for ( ; i >= 0; --i) {
+                gpio_free(EP93XX_GPIO_LINE_C(i));
+                gpio_free(EP93XX_GPIO_LINE_D(i));
+        }
+        return err;
+}
+EXPORT_SYMBOL(ep93xx_keypad_acquire_gpio);
+
+void ep93xx_keypad_release_gpio(struct platform_device *pdev)
+{
+        int i;
+
+        for (i = 0; i < 8; i++) {
+                gpio_free(EP93XX_GPIO_LINE_C(i));
+                gpio_free(EP93XX_GPIO_LINE_D(i));
+        }
+
+        /* Disable the keypad controller; GPIO ports C and D used for GPIO */
+        ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_KEYS |
+                               EP93XX_SYSCON_DEVCFG_GONK);
+}
+EXPORT_SYMBOL(ep93xx_keypad_release_gpio);
+
+
 extern void ep93xx_gpio_init(void);
 
 void __init ep93xx_init_devices(void)
diff --git a/arch/arm/mach-ep93xx/include/mach/clkdev.h b/arch/arm/mach-ep93xx/include/mach/clkdev.h
index 04b37a89801c..50cb991eadeb 100644
--- a/arch/arm/mach-ep93xx/include/mach/clkdev.h
+++ b/arch/arm/mach-ep93xx/include/mach/clkdev.h
@@ -1,3 +1,7 @@
+/*
+ * arch/arm/mach-ep93xx/include/mach/clkdev.h
+ */
+
 #ifndef __ASM_MACH_CLKDEV_H
 #define __ASM_MACH_CLKDEV_H
 
diff --git a/arch/arm/mach-ep93xx/include/mach/dma.h b/arch/arm/mach-ep93xx/include/mach/dma.h
index ef6bd9d13148..3a5961d3f3b1 100644
--- a/arch/arm/mach-ep93xx/include/mach/dma.h
+++ b/arch/arm/mach-ep93xx/include/mach/dma.h
@@ -1,3 +1,7 @@
+/*
+ * arch/arm/mach-ep93xx/include/mach/dma.h
+ */
+
 #ifndef __ASM_ARCH_DMA_H
 #define __ASM_ARCH_DMA_H
 
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
index b1f937eda29c..d55194a4c093 100644
--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
@@ -134,6 +134,7 @@
 #define EP93XX_UART3_PHYS_BASE          EP93XX_APB_PHYS(0x000e0000)
 #define EP93XX_UART3_BASE               EP93XX_APB_IOMEM(0x000e0000)
 
+#define EP93XX_KEY_MATRIX_PHYS_BASE     EP93XX_APB_PHYS(0x000f0000)
 #define EP93XX_KEY_MATRIX_BASE          EP93XX_APB_IOMEM(0x000f0000)
 
 #define EP93XX_ADC_BASE                 EP93XX_APB_IOMEM(0x00100000)
diff --git a/arch/arm/mach-ep93xx/include/mach/hardware.h b/arch/arm/mach-ep93xx/include/mach/hardware.h
index 349fa7cb72d5..5a3ce024b593 100644
--- a/arch/arm/mach-ep93xx/include/mach/hardware.h
+++ b/arch/arm/mach-ep93xx/include/mach/hardware.h
@@ -1,6 +1,7 @@
 /*
  * arch/arm/mach-ep93xx/include/mach/hardware.h
  */
+
 #ifndef __ASM_ARCH_HARDWARE_H
 #define __ASM_ARCH_HARDWARE_H
 
diff --git a/arch/arm/mach-ep93xx/include/mach/io.h b/arch/arm/mach-ep93xx/include/mach/io.h
index cebcc1c53d63..594b77f21054 100644
--- a/arch/arm/mach-ep93xx/include/mach/io.h
+++ b/arch/arm/mach-ep93xx/include/mach/io.h
@@ -1,6 +1,7 @@
 /*
  * arch/arm/mach-ep93xx/include/mach/io.h
  */
+
 #ifndef __ASM_MACH_IO_H
 #define __ASM_MACH_IO_H
 
diff --git a/arch/arm/mach-ep93xx/include/mach/platform.h b/arch/arm/mach-ep93xx/include/mach/platform.h
index 469fd968d517..c6dc14dbca18 100644
--- a/arch/arm/mach-ep93xx/include/mach/platform.h
+++ b/arch/arm/mach-ep93xx/include/mach/platform.h
@@ -8,6 +8,7 @@ struct i2c_gpio_platform_data;
 struct i2c_board_info;
 struct platform_device;
 struct ep93xxfb_mach_info;
+struct ep93xx_keypad_platform_data;
 
 struct ep93xx_eth_data
 {
@@ -39,6 +40,9 @@ void ep93xx_register_fb(struct ep93xxfb_mach_info *data);
 void ep93xx_register_pwm(int pwm0, int pwm1);
 int ep93xx_pwm_acquire_gpio(struct platform_device *pdev);
 void ep93xx_pwm_release_gpio(struct platform_device *pdev);
+void ep93xx_register_keypad(struct ep93xx_keypad_platform_data *data);
+int ep93xx_keypad_acquire_gpio(struct platform_device *pdev);
+void ep93xx_keypad_release_gpio(struct platform_device *pdev);
 
 void ep93xx_init_devices(void);
 extern struct sys_timer ep93xx_timer;