[ARM] pxa/balloon3: Machine file cleanup

Logically separate parts of the file that are handled by one particular driver.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>

1 files changed, 126 insertions, 99 deletions

diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index f3b5ace815e5..8adb87a03674 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -51,87 +51,27 @@
 #include "generic.h"
 #include "devices.h"
 
-static unsigned long balloon3_irq_enabled;
-
-static unsigned long balloon3_features_present =
-                (1 << BALLOON3_FEATURE_OHCI) | (1 << BALLOON3_FEATURE_CF) |
-                (1 << BALLOON3_FEATURE_AUDIO) |
-                (1 << BALLOON3_FEATURE_TOPPOLY);
-
-int balloon3_has(enum balloon3_features feature)
-{
-        return (balloon3_features_present & (1 << feature)) ? 1 : 0;
-}
-EXPORT_SYMBOL_GPL(balloon3_has);
-
-int __init parse_balloon3_features(char *arg)
-{
-        if (!arg)
-                return 0;
-
-        return strict_strtoul(arg, 0, &balloon3_features_present);
-}
-early_param("balloon3_features", parse_balloon3_features);
-
-static void balloon3_mask_irq(unsigned int irq)
-{
-        int balloon3_irq = (irq - BALLOON3_IRQ(0));
-        balloon3_irq_enabled &= ~(1 << balloon3_irq);
-        __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG);
-}
+/******************************************************************************
+ * Pin configuration
+ ******************************************************************************/
+static unsigned long balloon3_pin_config[] __initdata = {
+        /* Select BTUART 'COM1/ttyS0' as IO option for pins 42/43/44/45 */
+        GPIO42_BTUART_RXD,
+        GPIO43_BTUART_TXD,
+        GPIO44_BTUART_CTS,
+        GPIO45_BTUART_RTS,
 
-static void balloon3_unmask_irq(unsigned int irq)
-{
-        int balloon3_irq = (irq - BALLOON3_IRQ(0));
-        balloon3_irq_enabled |= (1 << balloon3_irq);
-        __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG);
-}
+        /* Wakeup GPIO */
+        GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
 
-static struct irq_chip balloon3_irq_chip = {
-        .name           = "FPGA",
-        .ack            = balloon3_mask_irq,
-        .mask           = balloon3_mask_irq,
-        .unmask         = balloon3_unmask_irq,
+        /* NAND & IDLE LED GPIOs */
+        GPIO9_GPIO,
+        GPIO10_GPIO,
 };
 
-static void balloon3_irq_handler(unsigned int irq, struct irq_desc *desc)
-{
-        unsigned long pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
-                                        balloon3_irq_enabled;
-
-        do {
-                /* clear useless edge notification */
-                if (desc->chip->ack)
-                        desc->chip->ack(BALLOON3_AUX_NIRQ);
-                while (pending) {
-                        irq = BALLOON3_IRQ(0) + __ffs(pending);
-                        generic_handle_irq(irq);
-                        pending &= pending - 1;
-                }
-                pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
-                                balloon3_irq_enabled;
-        } while (pending);
-}
-
-static void __init balloon3_init_irq(void)
-{
-        int irq;
-
-        pxa27x_init_irq();
-        /* setup extra Balloon3 irqs */
-        for (irq = BALLOON3_IRQ(0); irq <= BALLOON3_IRQ(7); irq++) {
-                set_irq_chip(irq, &balloon3_irq_chip);
-                set_irq_handler(irq, handle_level_irq);
-                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
-        }
-
-        set_irq_chained_handler(BALLOON3_AUX_NIRQ, balloon3_irq_handler);
-        set_irq_type(BALLOON3_AUX_NIRQ, IRQ_TYPE_EDGE_FALLING);
-
-        pr_debug("%s: chained handler installed - irq %d automatically "
-                "enabled\n", __func__, BALLOON3_AUX_NIRQ);
-}
-
+/******************************************************************************
+ * Audio and Touchscreen
+ ******************************************************************************/
 static unsigned long balloon3_ac97_pin_config[] = {
         GPIO28_AC97_BITCLK,
         GPIO29_AC97_SDATA_IN_0,
@@ -140,19 +80,16 @@ static unsigned long balloon3_ac97_pin_config[] = {
         GPIO113_AC97_nRESET,
 };
 
+/******************************************************************************
+ * Framebuffer
+ ******************************************************************************/
+
 static void balloon3_backlight_power(int on)
 {
         pr_debug("%s: power is %s\n", __func__, on ? "on" : "off");
         gpio_set_value(BALLOON3_GPIO_RUN_BACKLIGHT, on);
 }
 
-static unsigned long balloon3_lcd_pin_config[] = {
-        /* LCD - 16bpp Active TFT */
-        GPIOxx_LCD_TFT_16BPP,
-
-        GPIO99_GPIO,            /* Backlight */
-};
-
 static struct pxafb_mode_info balloon3_lcd_modes[] = {
         {
                 .pixclock               = 38000,
@@ -176,6 +113,9 @@ static struct pxafb_mach_info balloon3_pxafb_info = {
         .pxafb_backlight_power  = balloon3_backlight_power,
 };
 
+/******************************************************************************
+ * SD/MMC card controller
+ ******************************************************************************/
 static unsigned long balloon3_mmc_pin_config[] = {
         GPIO32_MMC_CLK,
         GPIO92_MMC_DAT_0,
@@ -203,6 +143,9 @@ static struct pxamci_platform_data balloon3_mci_platform_data = {
         .setpower       = balloon3_mci_setpower,
 };
 
+/******************************************************************************
+ * USB Gadget
+ ******************************************************************************/
 static int balloon3_udc_is_connected(void)
 {
         pr_debug("%s: udc connected\n", __func__);
@@ -228,10 +171,16 @@ static struct pxa2xx_udc_mach_info balloon3_udc_info = {
         .udc_command      = balloon3_udc_command,
 };
 
+/******************************************************************************
+ * IrDA
+ ******************************************************************************/
 static struct pxaficp_platform_data balloon3_ficp_platform_data = {
         .transceiver_cap  = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 };
 
+/******************************************************************************
+ * USB Host
+ ******************************************************************************/
 static unsigned long balloon3_ohci_pin_config[] = {
         GPIO88_USBH1_PWR,
         GPIO89_USBH1_PEN,
@@ -242,21 +191,9 @@ static struct pxaohci_platform_data balloon3_ohci_platform_data = {
         .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
 };
 
-static unsigned long balloon3_pin_config[] __initdata = {
-        /* Select BTUART 'COM1/ttyS0' as IO option for pins 42/43/44/45 */
-        GPIO42_BTUART_RXD,
-        GPIO43_BTUART_TXD,
-        GPIO44_BTUART_CTS,
-        GPIO45_BTUART_RTS,
-
-        /* Wakeup GPIO */
-        GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
-
-        /* NAND & IDLE LED GPIOs */
-        GPIO9_GPIO,
-        GPIO10_GPIO,
-};
-
+/******************************************************************************
+ * LED
+ ******************************************************************************/
 static struct gpio_led balloon3_gpio_leds[] = {
         {
                 .name                   = "balloon3:green:idle",
@@ -285,6 +222,96 @@ static struct platform_device balloon3led_device = {
         },
 };
 
+/******************************************************************************
+ * Compatibility: Parameter parsing
+ ******************************************************************************/
+static unsigned long balloon3_irq_enabled;
+
+static unsigned long balloon3_features_present =
+                (1 << BALLOON3_FEATURE_OHCI) | (1 << BALLOON3_FEATURE_CF) |
+                (1 << BALLOON3_FEATURE_AUDIO) |
+                (1 << BALLOON3_FEATURE_TOPPOLY);
+
+int balloon3_has(enum balloon3_features feature)
+{
+        return (balloon3_features_present & (1 << feature)) ? 1 : 0;
+}
+EXPORT_SYMBOL_GPL(balloon3_has);
+
+int __init parse_balloon3_features(char *arg)
+{
+        if (!arg)
+                return 0;
+
+        return strict_strtoul(arg, 0, &balloon3_features_present);
+}
+early_param("balloon3_features", parse_balloon3_features);
+
+/******************************************************************************
+ * FPGA IRQ
+ ******************************************************************************/
+static void balloon3_mask_irq(unsigned int irq)
+{
+        int balloon3_irq = (irq - BALLOON3_IRQ(0));
+        balloon3_irq_enabled &= ~(1 << balloon3_irq);
+        __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG);
+}
+
+static void balloon3_unmask_irq(unsigned int irq)
+{
+        int balloon3_irq = (irq - BALLOON3_IRQ(0));
+        balloon3_irq_enabled |= (1 << balloon3_irq);
+        __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG);
+}
+
+static struct irq_chip balloon3_irq_chip = {
+        .name           = "FPGA",
+        .ack            = balloon3_mask_irq,
+        .mask           = balloon3_mask_irq,
+        .unmask         = balloon3_unmask_irq,
+};
+
+static void balloon3_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+        unsigned long pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
+                                        balloon3_irq_enabled;
+
+        do {
+                /* clear useless edge notification */
+                if (desc->chip->ack)
+                        desc->chip->ack(BALLOON3_AUX_NIRQ);
+                while (pending) {
+                        irq = BALLOON3_IRQ(0) + __ffs(pending);
+                        generic_handle_irq(irq);
+                        pending &= pending - 1;
+                }
+                pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
+                                balloon3_irq_enabled;
+        } while (pending);
+}
+
+static void __init balloon3_init_irq(void)
+{
+        int irq;
+
+        pxa27x_init_irq();
+        /* setup extra Balloon3 irqs */
+        for (irq = BALLOON3_IRQ(0); irq <= BALLOON3_IRQ(7); irq++) {
+                set_irq_chip(irq, &balloon3_irq_chip);
+                set_irq_handler(irq, handle_level_irq);
+                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+        }
+
+        set_irq_chained_handler(BALLOON3_AUX_NIRQ, balloon3_irq_handler);
+        set_irq_type(BALLOON3_AUX_NIRQ, IRQ_TYPE_EDGE_FALLING);
+
+        pr_debug("%s: chained handler installed - irq %d automatically "
+                "enabled\n", __func__, BALLOON3_AUX_NIRQ);
+}
+
+/******************************************************************************
+ * Machine init
+ ******************************************************************************/
 static void __init balloon3_init(void)
 {
         pr_info("Initialising Balloon3\n");