video: fbdev: Convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly. One tracking pointer was added.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: David Lechner <david@lechnology.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
[b.zolnierkie: ported it over pxa3xx_gcu changes]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

5 files changed, 13 insertions, 18 deletions

diff --git a/drivers/video/fbdev/aty/radeon_base.c b/drivers/video/fbdev/aty/radeon_base.c
index 8ad1643e7d1c..4d77daeecf99 100644
--- a/drivers/video/fbdev/aty/radeon_base.c
+++ b/drivers/video/fbdev/aty/radeon_base.c
@@ -1454,9 +1454,9 @@ static void radeon_write_pll_regs(struct radeonfb_info *rinfo, struct radeon_reg
 /*
  * Timer function for delayed LVDS panel power up/down
  */
-static void radeon_lvds_timer_func(unsigned long data)
+static void radeon_lvds_timer_func(struct timer_list *t)
 {
-        struct radeonfb_info *rinfo = (struct radeonfb_info *)data;
+        struct radeonfb_info *rinfo = from_timer(rinfo, t, lvds_timer);
 
         radeon_engine_idle();
 
@@ -2291,9 +2291,7 @@ static int radeonfb_pci_register(struct pci_dev *pdev,
         rinfo->pdev = pdev;
         
         spin_lock_init(&rinfo->reg_lock);
-        init_timer(&rinfo->lvds_timer);
-        rinfo->lvds_timer.function = radeon_lvds_timer_func;
-        rinfo->lvds_timer.data = (unsigned long)rinfo;
+        timer_setup(&rinfo->lvds_timer, radeon_lvds_timer_func, 0);
 
         c1 = ent->device >> 8;
         c2 = ent->device & 0xff;
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 04612f938bab..3b4a96379128 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -395,10 +395,10 @@ static void fb_flashcursor(struct work_struct *work)
         console_unlock();
 }
 
-static void cursor_timer_handler(unsigned long dev_addr)
+static void cursor_timer_handler(struct timer_list *t)
 {
-        struct fb_info *info = (struct fb_info *) dev_addr;
-        struct fbcon_ops *ops = info->fbcon_par;
+        struct fbcon_ops *ops = from_timer(ops, t, cursor_timer);
+        struct fb_info *info = ops->info;
 
         queue_work(system_power_efficient_wq, &info->queue);
         mod_timer(&ops->cursor_timer, jiffies + ops->cur_blink_jiffies);
@@ -414,8 +414,7 @@ static void fbcon_add_cursor_timer(struct fb_info *info)
                 if (!info->queue.func)
                         INIT_WORK(&info->queue, fb_flashcursor);
 
-                setup_timer(&ops->cursor_timer, cursor_timer_handler,
-                            (unsigned long) info);
+                timer_setup(&ops->cursor_timer, cursor_timer_handler, 0);
                 mod_timer(&ops->cursor_timer, jiffies + ops->cur_blink_jiffies);
                 ops->flags |= FBCON_FLAGS_CURSOR_TIMER;
         }
@@ -714,6 +713,7 @@ static int con2fb_acquire_newinfo(struct vc_data *vc, struct fb_info *info,
 
         if (!err) {
                 ops->cur_blink_jiffies = HZ / 5;
+                ops->info = info;
                 info->fbcon_par = ops;
 
                 if (vc)
diff --git a/drivers/video/fbdev/core/fbcon.h b/drivers/video/fbdev/core/fbcon.h
index 18f3ac144237..9f7744fbc962 100644
--- a/drivers/video/fbdev/core/fbcon.h
+++ b/drivers/video/fbdev/core/fbcon.h
@@ -69,6 +69,7 @@ struct fbcon_ops {
         struct timer_list cursor_timer; /* Cursor timer */
         struct fb_cursor cursor_state;
         struct display *p;
+        struct fb_info *info;
         int    currcon;                 /* Current VC. */
         int    cur_blink_jiffies;
         int    cursor_flash;
diff --git a/drivers/video/fbdev/omap/hwa742.c b/drivers/video/fbdev/omap/hwa742.c
index a4ee65b8f918..6199d4806193 100644
--- a/drivers/video/fbdev/omap/hwa742.c
+++ b/drivers/video/fbdev/omap/hwa742.c
@@ -474,7 +474,7 @@ static void auto_update_complete(void *data)
                           jiffies + HWA742_AUTO_UPDATE_TIME);
 }
 
-static void hwa742_update_window_auto(unsigned long arg)
+static void hwa742_update_window_auto(struct timer_list *unused)
 {
         LIST_HEAD(req_list);
         struct hwa742_request *last;
@@ -1002,9 +1002,7 @@ static int hwa742_init(struct omapfb_device *fbdev, int ext_mode,
         hwa742.auto_update_window.height = fbdev->panel->y_res;
         hwa742.auto_update_window.format = 0;
 
-        init_timer(&hwa742.auto_update_timer);
-        hwa742.auto_update_timer.function = hwa742_update_window_auto;
-        hwa742.auto_update_timer.data = 0;
+        timer_setup(&hwa742.auto_update_timer, hwa742_update_window_auto, 0);
 
         hwa742.prev_color_mode = -1;
         hwa742.prev_flags = 0;
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
index 30d49f3800b3..8e1d60d48dbb 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
@@ -3988,7 +3988,7 @@ static void dsi_update_screen_dispc(struct platform_device *dsidev)
 }
 
 #ifdef DSI_CATCH_MISSING_TE
-static void dsi_te_timeout(unsigned long arg)
+static void dsi_te_timeout(struct timer_list *unused)
 {
         DSSERR("TE not received for 250ms!\n");
 }
@@ -5298,9 +5298,7 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
                              dsi_framedone_timeout_work_callback);
 
 #ifdef DSI_CATCH_MISSING_TE
-        init_timer(&dsi->te_timer);
-        dsi->te_timer.function = dsi_te_timeout;
-        dsi->te_timer.data = 0;
+        timer_setup(&dsi->te_timer, dsi_te_timeout, 0);
 #endif
 
         res = platform_get_resource_byname(dsidev, IORESOURCE_MEM, "proto");