The patch titled
pxafb: use completion for LCD disable wait code
has been removed from the -mm tree. Its filename was
pxafb-use-completion-for-lcd-disable-wait-code.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: pxafb: use completion for LCD disable wait code
From: Eric Miao <eric.miao@xxxxxxxxxxx>
Signed-off-by: eric miao <eric.miao@xxxxxxxxxxx>
Cc: "Antonino A. Daplas" <adaplas@xxxxxxx>
Cc: Russell King <rmk@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/pxafb.c | 12 ++++--------
drivers/video/pxafb.h | 2 ++
2 files changed, 6 insertions(+), 8 deletions(-)
diff -puN drivers/video/pxafb.c~pxafb-use-completion-for-lcd-disable-wait-code drivers/video/pxafb.c
--- a/drivers/video/pxafb.c~pxafb-use-completion-for-lcd-disable-wait-code
+++ a/drivers/video/pxafb.c
@@ -39,6 +39,7 @@
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <linux/err.h>
+#include <linux/completion.h>
#include <asm/hardware.h>
#include <asm/io.h>
@@ -810,11 +811,6 @@ static void pxafb_disable_controller(str
{
uint32_t lccr0;
- DECLARE_WAITQUEUE(wait, current);
-
- set_current_state(TASK_UNINTERRUPTIBLE);
- add_wait_queue(&fbi->ctrlr_wait, &wait);
-
/* Clear LCD Status Register */
lcd_writel(fbi, LCSR, 0xffffffff);
@@ -822,8 +818,7 @@ static void pxafb_disable_controller(str
lcd_writel(fbi, LCCR0, lccr0);
lcd_writel(fbi, LCCR0, lccr0 | LCCR0_DIS);
- schedule_timeout(200 * HZ / 1000);
- remove_wait_queue(&fbi->ctrlr_wait, &wait);
+ wait_for_completion_timeout(&fbi->disable_done, 200 * HZ / 1000);
/* disable LCD controller clock */
clk_disable(fbi->clk);
@@ -840,7 +835,7 @@ static irqreturn_t pxafb_handle_irq(int
if (lcsr & LCSR_LDD) {
lccr0 = lcd_readl(fbi, LCCR0);
lcd_writel(fbi, LCCR0, lccr0 | LCCR0_LDM);
- wake_up(&fbi->ctrlr_wait);
+ complete(&fbi->disable_done);
}
lcd_writel(fbi, LCSR, lcsr);
@@ -1190,6 +1185,7 @@ static struct pxafb_info * __init pxafb_
init_waitqueue_head(&fbi->ctrlr_wait);
INIT_WORK(&fbi->task, pxafb_task);
init_MUTEX(&fbi->ctrlr_sem);
+ init_completion(&fbi->disable_done);
return fbi;
}
diff -puN drivers/video/pxafb.h~pxafb-use-completion-for-lcd-disable-wait-code drivers/video/pxafb.h
--- a/drivers/video/pxafb.h~pxafb-use-completion-for-lcd-disable-wait-code
+++ a/drivers/video/pxafb.h
@@ -114,6 +114,8 @@ struct pxafb_info {
wait_queue_head_t ctrlr_wait;
struct work_struct task;
+ struct completion disable_done;
+
#ifdef CONFIG_CPU_FREQ
struct notifier_block freq_transition;
struct notifier_block freq_policy;
_
Patches currently in -mm which might be from eric.miao@xxxxxxxxxxx are
origin.patch
git-arm.patch
gpio-pca953x-add-support-for-pca9555-i2c-i-o-expander.patch
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