Instead of accessing the LCDC channel and fb_info structures directly,
use the LCDC notification callback to inform the LCDC driver about
display-related events.
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
drivers/video/sh_mobile_hdmi.c | 91 ++++++---------------------------------
1 files changed, 14 insertions(+), 77 deletions(-)
diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 1464abf..055cd92 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -733,12 +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;
+ struct sh_mobile_lcdc_chan *ch = hdmi->entity.lcdc;
+ struct fb_info *info = ch ? ch->info : NULL;
+ struct fb_var_screeninfo var;
const struct fb_videomode *mode, *found = NULL;
- struct fb_modelist *modelist = NULL;
+ const 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... */
bool scanning = false, preferred_bad = false;
@@ -856,12 +855,10 @@ static int sh_hdmi_read_edid(struct sh_hdmi *hdmi, unsigned long *hdmi_rate,
}
/* Check if supported: sufficient fb memory, supported clock-rate */
- fb_videomode_to_var(var, mode);
+ fb_videomode_to_var(&var, mode);
- var->bits_per_pixel = info->var.bits_per_pixel;
-
- if (info && info->fbops->fb_check_var &&
- info->fbops->fb_check_var(var, info)) {
+ if (ch && ch->notify &&
+ ch->notify(ch, SH_MOBILE_LCDC_EVENT_DISPLAY_MODE, &var)) {
scanning = true;
preferred_bad = true;
continue;
@@ -1044,32 +1041,6 @@ static const struct sh_mobile_lcdc_entity_ops sh_hdmi_ops = {
.display_off = sh_hdmi_display_off,
};
-static bool sh_hdmi_must_reconfigure(struct sh_hdmi *hdmi)
-{
- 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(hdmi->dev, "Old %ux%u, new %ux%u\n",
- mode1.xres, mode1.yres, mode2.xres, mode2.yres);
-
- if (fb_mode_is_equal(&mode1, &mode2)) {
- /* It can be a different monitor with an equal video-mode */
- old_var->width = new_var->width;
- old_var->height = new_var->height;
- return false;
- }
-
- dev_dbg(hdmi->dev, "Switching %u -> %u lines\n",
- mode1.yres, mode2.yres);
- *old_var = *new_var;
-
- return true;
-}
-
/**
* sh_hdmi_clk_configure() - set HDMI clock frequency and enable the clock
* @hdmi: driver context
@@ -1110,7 +1081,6 @@ 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;
int ret;
dev_dbg(hdmi->dev, "%s(%p): begin, hotplug status %d\n", __func__, hdmi,
@@ -1135,52 +1105,19 @@ static void sh_hdmi_edid_work_fn(struct work_struct *work)
/* Switched to another (d) power-save mode */
msleep(10);
- if (ch == NULL)
- goto out;
-
- info = ch->info;
-
- if (lock_fb_info(info)) {
- console_lock();
-
- /* HDMI plug in */
- if (!sh_hdmi_must_reconfigure(hdmi) &&
- info->state == FBINFO_STATE_RUNNING) {
- /*
- * First activation with the default monitor - just turn
- * on, if we run a resume here, the logo disappears
- */
- info->var.width = hdmi->var.width;
- info->var.height = hdmi->var.height;
- sh_hdmi_display_on(&hdmi->entity);
- } else {
- /* New monitor or have to wake up */
- fb_set_suspend(info, 0);
- }
-
- console_unlock();
- unlock_fb_info(info);
- }
+ if (ch && ch->notify)
+ ch->notify(ch, SH_MOBILE_LCDC_EVENT_DISPLAY_CONNECT,
+ &hdmi->var);
} else {
- ret = 0;
- if (ch == NULL)
- goto out;
-
- info = ch->info;
-
hdmi->monspec.modedb_len = 0;
fb_destroy_modedb(hdmi->monspec.modedb);
hdmi->monspec.modedb = NULL;
- if (lock_fb_info(info)) {
- console_lock();
+ if (ch && ch->notify)
+ ch->notify(ch, SH_MOBILE_LCDC_EVENT_DISPLAY_DISCONNECT,
+ NULL);
- /* HDMI disconnect */
- fb_set_suspend(info, 1);
-
- console_unlock();
- unlock_fb_info(info);
- }
+ ret = 0;
}
out:
--
1.7.3.4
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