fbdev: sh_mobile_hdmi: framebuffer notifiers have to be registered

A previous patch added a framebuffer notifier to sh_mobile_hdmi.c,
but did not register it with the framebuffer core. This patch adds
such a registration and moves the notifier block into dynamically
allocated per-device private data.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 9 insertions, 10 deletions

diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 571bd9f74513..46ab355e0a6a 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -221,6 +221,7 @@ struct sh_hdmi {
         struct delayed_work edid_work;
         struct fb_var_screeninfo var;
         struct fb_monspecs monspec;
+        struct notifier_block notifier;
 };
 
 static void hdmi_write(struct sh_hdmi *hdmi, u8 data, u8 reg)
@@ -1197,13 +1198,6 @@ out:
 }
 
 static int sh_hdmi_notify(struct notifier_block *nb,
-                          unsigned long action, void *data);
-
-static struct notifier_block sh_hdmi_notifier = {
-        .notifier_call = sh_hdmi_notify,
-};
-
-static int sh_hdmi_notify(struct notifier_block *nb,
                           unsigned long action, void *data)
 {
         struct fb_event *event = data;
@@ -1212,7 +1206,7 @@ static int sh_hdmi_notify(struct notifier_block *nb,
         struct sh_mobile_lcdc_board_cfg *board_cfg = &ch->cfg.board_cfg;
         struct sh_hdmi *hdmi = board_cfg->board_data;
 
-        if (nb != &sh_hdmi_notifier || !hdmi || hdmi->info != info)
+        if (!hdmi || nb != &hdmi->notifier || hdmi->info != info)
                 return NOTIFY_DONE;
 
         switch(action) {
@@ -1231,11 +1225,11 @@ static int sh_hdmi_notify(struct notifier_block *nb,
                  * temporarily, synchronise with the work queue and re-acquire
                  * the info->lock.
                  */
-                unlock_fb_info(hdmi->info);
+                unlock_fb_info(info);
                 mutex_lock(&hdmi->mutex);
                 hdmi->info = NULL;
                 mutex_unlock(&hdmi->mutex);
-                lock_fb_info(hdmi->info);
+                lock_fb_info(info);
                 return NOTIFY_OK;
         }
         return NOTIFY_DONE;
@@ -1333,6 +1327,9 @@ static int __init sh_hdmi_probe(struct platform_device *pdev)
                 goto ecodec;
         }
 
+        hdmi->notifier.notifier_call = sh_hdmi_notify;
+        fb_register_client(&hdmi->notifier);
+
         return 0;
 
 ecodec:
@@ -1363,6 +1360,8 @@ static int __exit sh_hdmi_remove(struct platform_device *pdev)
 
         snd_soc_unregister_codec(&pdev->dev);
 
+        fb_unregister_client(&hdmi->notifier);
+
         board_cfg->display_on = NULL;
         board_cfg->display_off = NULL;
         board_cfg->board_data = NULL;