The fb_info parameter passed to the display_on operation will be
removed, don't use it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
drivers/video/sh_mobile_hdmi.c | 80 ++++++----------------------------------
1 files changed, 12 insertions(+), 68 deletions(-)
diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 1e78100..bd885ee 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -219,16 +219,12 @@ struct sh_hdmi {
u8 edid_blocks;
struct clk *hdmi_clk;
struct device *dev;
- struct fb_info *info;
- struct mutex mutex; /* Protect the info pointer */
struct delayed_work edid_work;
struct fb_var_screeninfo var;
struct fb_monspecs monspec;
- struct notifier_block notifier;
};
#define entity_to_sh_hdmi(e) container_of(e, struct sh_hdmi, entity)
-#define notifier_to_hdmi(n) container_of(n, struct sh_hdmi, notifier)
static void hdmi_write(struct sh_hdmi *hdmi, u8 data, u8 reg)
{
@@ -737,10 +733,11 @@ static unsigned long sh_hdmi_rate_error(struct sh_hdmi *hdmi,
static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate,
unsigned long *parent_rate)
{
+ struct fb_info *info = hdmi->entity.lcdc
+ ? hdmi->entity.lcdc->info : NULL;
struct fb_var_screeninfo tmpvar;
struct fb_var_screeninfo *var = &tmpvar;
const struct fb_videomode *mode, *found = NULL;
- struct fb_info *info = hdmi->info;
struct fb_modelist *modelist = NULL;
unsigned int f_width = 0, f_height = 0, f_refresh = 0;
unsigned long found_rate_error = ULONG_MAX; /* silly compiler... */
@@ -1012,13 +1009,10 @@ static int sh_hdmi_display_on(struct sh_mobile_lcdc_entity *entity,
* FB_EVENT_FB_UNBIND notify is also called with info->lock held
*/
struct sh_hdmi *hdmi = entity_to_sh_hdmi(entity);
- struct sh_mobile_lcdc_chan *ch = info->par;
+ struct sh_mobile_lcdc_chan *ch = entity->lcdc;
dev_dbg(hdmi->dev, "%s(%p): state %x\n", __func__, hdmi, info->state);
- /* No need to lock */
- hdmi->info = info;
-
/*
* hp_state can be set to
* HDMI_HOTPLUG_DISCONNECTED: on monitor unplug
@@ -1040,7 +1034,6 @@ static int sh_hdmi_display_on(struct sh_mobile_lcdc_entity *entity,
return 0;
}
-/* locking: called with info->lock held */
static void sh_hdmi_display_off(struct sh_mobile_lcdc_entity *entity)
{
struct sh_hdmi *hdmi = entity_to_sh_hdmi(entity);
@@ -1057,15 +1050,14 @@ static const struct sh_mobile_lcdc_entity_ops sh_hdmi_ops = {
static bool sh_hdmi_must_reconfigure(struct sh_hdmi *hdmi)
{
- struct fb_info *info = hdmi->info;
- struct sh_mobile_lcdc_chan *ch = info->par;
+ struct sh_mobile_lcdc_chan *ch = hdmi->entity.lcdc;
struct fb_var_screeninfo *new_var = &hdmi->var, *old_var = &ch->display_var;
struct fb_videomode mode1, mode2;
fb_var_to_videomode(&mode1, old_var);
fb_var_to_videomode(&mode2, new_var);
- dev_dbg(info->dev, "Old %ux%u, new %ux%u\n",
+ dev_dbg(hdmi->dev, "Old %ux%u, new %ux%u\n",
mode1.xres, mode1.yres, mode2.xres, mode2.yres);
if (fb_mode_is_equal(&mode1, &mode2)) {
@@ -1075,7 +1067,7 @@ static bool sh_hdmi_must_reconfigure(struct sh_hdmi *hdmi)
return false;
}
- dev_dbg(info->dev, "Switching %u -> %u lines\n",
+ dev_dbg(hdmi->dev, "Switching %u -> %u lines\n",
mode1.yres, mode2.yres);
*old_var = *new_var;
@@ -1121,17 +1113,13 @@ static long sh_hdmi_clk_configure(struct sh_hdmi *hdmi, unsigned long hdmi_rate,
static void sh_hdmi_edid_work_fn(struct work_struct *work)
{
struct sh_hdmi *hdmi = container_of(work, struct sh_hdmi, edid_work.work);
+ struct sh_mobile_lcdc_chan *ch = hdmi->entity.lcdc;
struct fb_info *info;
- struct sh_mobile_lcdc_chan *ch;
int ret;
dev_dbg(hdmi->dev, "%s(%p): begin, hotplug status %d\n", __func__, hdmi,
hdmi->hp_state);
- mutex_lock(&hdmi->mutex);
-
- info = hdmi->info;
-
if (hdmi->hp_state == HDMI_HOTPLUG_CONNECTED) {
unsigned long parent_rate = 0, hdmi_rate;
@@ -1151,10 +1139,10 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
/* Switched to another (d) power-save mode */
msleep(10);
- if (!info)
+ if (ch == NULL)
goto out;
- ch = info->par;
+ info = ch->info;
if (lock_fb_info(info)) {
console_lock();
@@ -1179,9 +1167,11 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
}
} else {
ret = 0;
- if (!info)
+ if (ch == NULL)
goto out;
+ info = ch->info;
+
hdmi->monspec.modedb_len = 0;
fb_destroy_modedb(hdmi->monspec.modedb);
hdmi->monspec.modedb = NULL;
@@ -1200,47 +1190,10 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
out:
if (ret < 0 && ret != -EAGAIN)
hdmi->hp_state = HDMI_HOTPLUG_DISCONNECTED;
- mutex_unlock(&hdmi->mutex);
dev_dbg(hdmi->dev, "%s(%p): end\n", __func__, hdmi);
}
-static int sh_hdmi_notify(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct fb_event *event = data;
- struct fb_info *info = event->info;
- struct sh_hdmi *hdmi = notifier_to_hdmi(nb);
-
- if (!hdmi || nb != &hdmi->notifier || hdmi->info != info)
- return NOTIFY_DONE;
-
- switch(action) {
- case FB_EVENT_FB_REGISTERED:
- /* Unneeded, activation taken care by sh_hdmi_display_on() */
- break;
- case FB_EVENT_FB_UNREGISTERED:
- /*
- * We are called from unregister_framebuffer() with the
- * info->lock held. This is bad for us, because we can race with
- * the scheduled work, which has to call fb_set_suspend(), which
- * takes info->lock internally, so, sh_hdmi_edid_work_fn()
- * cannot take and hold info->lock for the whole function
- * duration. Using an additional lock creates a classical AB-BA
- * lock up. Therefore, we have to release the info->lock
- * temporarily, synchronise with the work queue and re-acquire
- * the info->lock.
- */
- unlock_fb_info(info);
- mutex_lock(&hdmi->mutex);
- hdmi->info = NULL;
- mutex_unlock(&hdmi->mutex);
- lock_fb_info(info);
- return NOTIFY_OK;
- }
- return NOTIFY_DONE;
-}
-
static int __init sh_hdmi_probe(struct platform_device *pdev)
{
struct sh_mobile_hdmi_info *pdata = pdev->dev.platform_data;
@@ -1258,8 +1211,6 @@ static int __init sh_hdmi_probe(struct platform_device *pdev)
return -ENOMEM;
}
- mutex_init(&hdmi->mutex);
-
hdmi->dev = &pdev->dev;
hdmi->entity.owner = THIS_MODULE;
hdmi->entity.ops = &sh_hdmi_ops;
@@ -1327,9 +1278,6 @@ 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:
@@ -1345,7 +1293,6 @@ ereqreg:
erate:
clk_put(hdmi->hdmi_clk);
egetclk:
- mutex_destroy(&hdmi->mutex);
kfree(hdmi);
return ret;
@@ -1359,8 +1306,6 @@ static int __exit sh_hdmi_remove(struct platform_device *pdev)
snd_soc_unregister_codec(&pdev->dev);
- fb_unregister_client(&hdmi->notifier);
-
/* No new work will be scheduled, wait for running ISR */
free_irq(irq, hdmi);
/* Wait for already scheduled work */
@@ -1371,7 +1316,6 @@ static int __exit sh_hdmi_remove(struct platform_device *pdev)
clk_put(hdmi->hdmi_clk);
iounmap(hdmi->base);
release_mem_region(res->start, resource_size(res));
- mutex_destroy(&hdmi->mutex);
kfree(hdmi);
return 0;
--
1.7.3.4
--
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