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authorFinn Thain <fthain@telegraphics.com.au>2008-11-18 20:45:23 +0100
committerGeert Uytterhoeven <geert@linux-m68k.org>2008-12-28 20:00:06 +0100
commit79f0c9a0479060e3a8607d93bc8d81ff962acc87 (patch)
tree439a99a7cd202e3edfdac60557bc1dca87ffbe47 /drivers/video/console
parent646819e86222cc06b85ed2a8dafbbb361a05ea2d (diff)
downloadop-kernel-dev-79f0c9a0479060e3a8607d93bc8d81ff962acc87.zip
op-kernel-dev-79f0c9a0479060e3a8607d93bc8d81ff962acc87.tar.gz
fbcon: remove broken mac vbl handler
Remove the Mac VBL interrupt code as it doesn't work properly and doesn't bring any benefit when fixed. Also remove unused DEFAULT_CURSOR_BLINK_RATE macro and irqres variable. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'drivers/video/console')
-rw-r--r--drivers/video/console/fbcon.c75
1 files changed, 3 insertions, 72 deletions
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 0b2adef..e99bb7c 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -81,9 +81,6 @@
#ifdef CONFIG_ATARI
#include <asm/atariints.h>
#endif
-#ifdef CONFIG_MAC
-#include <asm/macints.h>
-#endif
#if defined(__mc68000__)
#include <asm/machdep.h>
#include <asm/setup.h>
@@ -160,8 +157,6 @@ static int fbcon_set_origin(struct vc_data *);
/* # VBL ints between cursor state changes */
#define ATARI_CURSOR_BLINK_RATE (42)
-#define MAC_CURSOR_BLINK_RATE (32)
-#define DEFAULT_CURSOR_BLINK_RATE (20)
static int vbl_cursor_cnt;
static int fbcon_cursor_noblink;
@@ -210,19 +205,6 @@ static void fbcon_start(void);
static void fbcon_exit(void);
static struct device *fbcon_device;
-#ifdef CONFIG_MAC
-/*
- * On the Macintoy, there may or may not be a working VBL int. We need to probe
- */
-static int vbl_detected;
-
-static irqreturn_t fb_vbl_detect(int irq, void *dummy)
-{
- vbl_detected++;
- return IRQ_HANDLED;
-}
-#endif
-
#ifdef CONFIG_FRAMEBUFFER_CONSOLE_ROTATION
static inline void fbcon_set_rotation(struct fb_info *info)
{
@@ -421,7 +403,7 @@ static void fb_flashcursor(struct work_struct *work)
release_console_sem();
}
-#if defined(CONFIG_ATARI) || defined(CONFIG_MAC)
+#ifdef CONFIG_ATARI
static int cursor_blink_rate;
static irqreturn_t fb_vbl_handler(int irq, void *dev_id)
{
@@ -949,9 +931,7 @@ static const char *fbcon_startup(void)
struct fb_info *info = NULL;
struct fbcon_ops *ops;
int rows, cols;
- int irqres;
- irqres = 1;
/*
* If num_registered_fb is zero, this is a call for the dummy part.
* The frame buffer devices weren't initialized yet.
@@ -1040,56 +1020,11 @@ static const char *fbcon_startup(void)
#ifdef CONFIG_ATARI
if (MACH_IS_ATARI) {
cursor_blink_rate = ATARI_CURSOR_BLINK_RATE;
- irqres =
- request_irq(IRQ_AUTO_4, fb_vbl_handler,
+ (void)request_irq(IRQ_AUTO_4, fb_vbl_handler,
IRQ_TYPE_PRIO, "framebuffer vbl",
info);
}
-#endif /* CONFIG_ATARI */
-
-#ifdef CONFIG_MAC
- /*
- * On a Macintoy, the VBL interrupt may or may not be active.
- * As interrupt based cursor is more reliable and race free, we
- * probe for VBL interrupts.
- */
- if (MACH_IS_MAC) {
- int ct = 0;
- /*
- * Probe for VBL: set temp. handler ...
- */
- irqres = request_irq(IRQ_MAC_VBL, fb_vbl_detect, 0,
- "framebuffer vbl", info);
- vbl_detected = 0;
-
- /*
- * ... and spin for 20 ms ...
- */
- while (!vbl_detected && ++ct < 1000)
- udelay(20);
-
- if (ct == 1000)
- printk
- ("fbcon_startup: No VBL detected, using timer based cursor.\n");
-
- free_irq(IRQ_MAC_VBL, fb_vbl_detect);
-
- if (vbl_detected) {
- /*
- * interrupt based cursor ok
- */
- cursor_blink_rate = MAC_CURSOR_BLINK_RATE;
- irqres =
- request_irq(IRQ_MAC_VBL, fb_vbl_handler, 0,
- "framebuffer vbl", info);
- } else {
- /*
- * VBL not detected: fall through, use timer based cursor
- */
- irqres = 1;
- }
- }
-#endif /* CONFIG_MAC */
+#endif /* CONFIG_ATARI */
fbcon_add_cursor_timer(info);
fbcon_has_exited = 0;
@@ -3522,10 +3457,6 @@ static void fbcon_exit(void)
#ifdef CONFIG_ATARI
free_irq(IRQ_AUTO_4, fb_vbl_handler);
#endif
-#ifdef CONFIG_MAC
- if (MACH_IS_MAC && vbl_detected)
- free_irq(IRQ_MAC_VBL, fb_vbl_handler);
-#endif
kfree((void *)softback_buf);
softback_buf = 0UL;
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