mfd: Remove default selection of AB4500

[safe/jmp/linux-2.6] / drivers / mfd / ucb1x00-ts.c

diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c
index 79fd062..000cb41 100644 (file)
--- a/drivers/mfd/ucb1x00-ts.c
+++ b/drivers/mfd/ucb1x00-ts.c
@@ -17,28 +17,25 @@
  * pin should provide pulses even when the LCD is blanked, otherwise
  * a pen touch needed to unblank the LCD will never be read.
  */
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/sched.h>
 #include <linux/completion.h>
 #include <linux/delay.h>
 #include <linux/string.h>
 #include <linux/input.h>
 #include <linux/device.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/slab.h>
 #include <linux/kthread.h>
+#include <linux/mfd/ucb1x00.h>
 
-#include <asm/dma.h>
-#include <asm/semaphore.h>
-#include <asm/arch/collie.h>
+#include <mach/dma.h>
+#include <mach/collie.h>
 #include <asm/mach-types.h>
 
-#include "ucb1x00.h"
 
 
 struct ucb1x00_ts {
@@ -59,6 +56,7 @@ static int adcsync;
 static inline void ucb1x00_ts_evt_add(struct ucb1x00_ts *ts, u16 pressure, u16 x, u16 y)
 {
        struct input_dev *idev = ts->idev;
+
        input_report_abs(idev, ABS_X, x);
        input_report_abs(idev, ABS_Y, y);
        input_report_abs(idev, ABS_PRESSURE, pressure);
@@ -68,6 +66,7 @@ static inline void ucb1x00_ts_evt_add(struct ucb1x00_ts *ts, u16 pressure, u16 x
 static inline void ucb1x00_ts_event_release(struct ucb1x00_ts *ts)
 {
        struct input_dev *idev = ts->idev;
+
        input_report_abs(idev, ABS_PRESSURE, 0);
        input_sync(idev);
 }
@@ -190,6 +189,7 @@ static inline unsigned int ucb1x00_ts_read_yres(struct ucb1x00_ts *ts)
 static inline int ucb1x00_ts_pen_down(struct ucb1x00_ts *ts)
 {
        unsigned int val = ucb1x00_reg_read(ts->ucb, UCB_TS_CR);
+
        if (machine_is_collie())
                return (!(val & (UCB_TS_CR_TSPX_LOW)));
        else
@@ -204,19 +204,10 @@ static inline int ucb1x00_ts_pen_down(struct ucb1x00_ts *ts)
 static int ucb1x00_thread(void *_ts)
 {
        struct ucb1x00_ts *ts = _ts;
-       struct task_struct *tsk = current;
-       DECLARE_WAITQUEUE(wait, tsk);
-       int valid;
-
-       /*
-        * We could run as a real-time thread.  However, thus far
-        * this doesn't seem to be necessary.
-        */
-//     tsk->policy = SCHED_FIFO;
-//     tsk->rt_priority = 1;
-
-       valid = 0;
+       DECLARE_WAITQUEUE(wait, current);
+       int valid = 0;
 
+       set_freezable();
        add_wait_queue(&ts->irq_wait, &wait);
        while (!kthread_should_stop()) {
                unsigned int x, y, p;
@@ -242,7 +233,7 @@ static int ucb1x00_thread(void *_ts)
 
 
                if (ucb1x00_ts_pen_down(ts)) {
-                       set_task_state(tsk, TASK_INTERRUPTIBLE);
+                       set_current_state(TASK_INTERRUPTIBLE);
 
                        ucb1x00_enable_irq(ts->ucb, UCB_IRQ_TSPX, machine_is_collie() ? UCB_RISING : UCB_FALLING);
                        ucb1x00_disable(ts->ucb);
@@ -270,7 +261,7 @@ static int ucb1x00_thread(void *_ts)
                                valid = 1;
                        }
 
-                       set_task_state(tsk, TASK_INTERRUPTIBLE);
+                       set_current_state(TASK_INTERRUPTIBLE);
                        timeout = HZ / 100;
                }
 
@@ -292,13 +283,14 @@ static int ucb1x00_thread(void *_ts)
 static void ucb1x00_ts_irq(int idx, void *id)
 {
        struct ucb1x00_ts *ts = id;
+
        ucb1x00_disable_irq(ts->ucb, UCB_IRQ_TSPX, UCB_FALLING);
        wake_up(&ts->irq_wait);
 }
 
 static int ucb1x00_ts_open(struct input_dev *idev)
 {
-       struct ucb1x00_ts *ts = idev->private;
+       struct ucb1x00_ts *ts = input_get_drvdata(idev);
        int ret = 0;
 
        BUG_ON(ts->rtask);
@@ -335,7 +327,7 @@ static int ucb1x00_ts_open(struct input_dev *idev)
  */
 static void ucb1x00_ts_close(struct input_dev *idev)
 {
-       struct ucb1x00_ts *ts = idev->private;
+       struct ucb1x00_ts *ts = input_get_drvdata(idev);
 
        if (ts->rtask)
                kthread_stop(ts->rtask);
@@ -373,36 +365,44 @@ static int ucb1x00_ts_resume(struct ucb1x00_dev *dev)
 static int ucb1x00_ts_add(struct ucb1x00_dev *dev)
 {
        struct ucb1x00_ts *ts;
+       struct input_dev *idev;
+       int err;
 
        ts = kzalloc(sizeof(struct ucb1x00_ts), GFP_KERNEL);
-       if (!ts)
-               return -ENOMEM;
-
-       ts->idev = input_allocate_device();
-       if (!ts->idev) {
-               kfree(ts);
-               return -ENOMEM;
+       idev = input_allocate_device();
+       if (!ts || !idev) {
+               err = -ENOMEM;
+               goto fail;
        }
 
        ts->ucb = dev->ucb;
+       ts->idev = idev;
        ts->adcsync = adcsync ? UCB_SYNC : UCB_NOSYNC;
 
-       ts->idev->private = ts;
-       ts->idev->name       = "Touchscreen panel";
-       ts->idev->id.product = ts->ucb->id;
-       ts->idev->open       = ucb1x00_ts_open;
-       ts->idev->close      = ucb1x00_ts_close;
+       idev->name       = "Touchscreen panel";
+       idev->id.product = ts->ucb->id;
+       idev->open       = ucb1x00_ts_open;
+       idev->close      = ucb1x00_ts_close;
 
-       __set_bit(EV_ABS, ts->idev->evbit);
-       __set_bit(ABS_X, ts->idev->absbit);
-       __set_bit(ABS_Y, ts->idev->absbit);
-       __set_bit(ABS_PRESSURE, ts->idev->absbit);
+       __set_bit(EV_ABS, idev->evbit);
+       __set_bit(ABS_X, idev->absbit);
+       __set_bit(ABS_Y, idev->absbit);
+       __set_bit(ABS_PRESSURE, idev->absbit);
 
-       input_register_device(ts->idev);
+       input_set_drvdata(idev, ts);
+
+       err = input_register_device(idev);
+       if (err)
+               goto fail;
 
        dev->priv = ts;
 
        return 0;
+
+ fail:
+       input_free_device(idev);
+       kfree(ts);
+       return err;
 }
 
 static void ucb1x00_ts_remove(struct ucb1x00_dev *dev)