Return true if the display is connected and false otherwise. Set the fb
info state to FBINFO_STATE_SUSPENDED in the sh_mobile_lcdc driver when
the display is not connected.
Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
drivers/video/sh_mipi_dsi.c | 4 +++-
drivers/video/sh_mobile_hdmi.c | 9 +++++----
drivers/video/sh_mobile_lcdcfb.c | 8 ++++++--
drivers/video/sh_mobile_lcdcfb.h | 2 +-
4 files changed, 15 insertions(+), 8 deletions(-)
diff --git a/drivers/video/sh_mipi_dsi.c b/drivers/video/sh_mipi_dsi.c
index f5d380c..3ead395 100644
--- a/drivers/video/sh_mipi_dsi.c
+++ b/drivers/video/sh_mipi_dsi.c
@@ -125,12 +125,14 @@ static void sh_mipi_shutdown(struct platform_device *pdev)
sh_mipi_dsi_enable(mipi, false);
}
-static void mipi_display_on(struct sh_mobile_lcdc_entity *entity)
+static bool mipi_display_on(struct sh_mobile_lcdc_entity *entity)
{
struct sh_mipi *mipi = to_sh_mipi(entity);
pm_runtime_get_sync(mipi->dev);
sh_mipi_dsi_enable(mipi, true);
+
+ return true;
}
static void mipi_display_off(struct sh_mobile_lcdc_entity *entity)
diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 88de4e0..4b87c6e 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -1000,13 +1000,13 @@ static irqreturn_t sh_hdmi_hotplug(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static void sh_hdmi_display_on(struct sh_mobile_lcdc_entity *entity)
+static bool sh_hdmi_display_on(struct sh_mobile_lcdc_entity *entity)
{
struct sh_hdmi *hdmi = entity_to_sh_hdmi(entity);
struct sh_mobile_lcdc_chan *ch = entity->lcdc;
- struct fb_info *info = ch->info;
- dev_dbg(hdmi->dev, "%s(%p): state %x\n", __func__, hdmi, info->state);
+ dev_dbg(hdmi->dev, "%s(%p): state %x\n", __func__, hdmi,
+ hdmi->hp_state);
/*
* hp_state can be set to
@@ -1021,10 +1021,11 @@ static void sh_hdmi_display_on(struct sh_mobile_lcdc_entity *entity)
dev_dbg(hdmi->dev, "HDMI running\n");
break;
case HDMI_HOTPLUG_DISCONNECTED:
- info->state = FBINFO_STATE_SUSPENDED;
default:
hdmi->var = ch->display_var;
}
+
+ return hdmi->hp_state != HDMI_HOTPLUG_DISCONNECTED;
}
static void sh_hdmi_display_off(struct sh_mobile_lcdc_entity *entity)
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index afd00cc..d6c117b 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -335,9 +335,13 @@ static void sh_mobile_lcdc_deferred_io_touch(struct fb_info *info)
static void sh_mobile_lcdc_display_on(struct sh_mobile_lcdc_chan *ch)
{
struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg.panel_cfg;
+ bool connected;
- if (ch->tx_dev)
- ch->tx_dev->ops->display_on(ch->tx_dev);
+ if (ch->tx_dev) {
+ connected = ch->tx_dev->ops->display_on(ch->tx_dev);
+ if (!connected)
+ ch->info->state = FBINFO_STATE_SUSPENDED;
+ }
/* HDMI must be enabled before LCDC configuration */
if (panel->display_on)
diff --git a/drivers/video/sh_mobile_lcdcfb.h b/drivers/video/sh_mobile_lcdcfb.h
index 50c2d1f..8f1e007 100644
--- a/drivers/video/sh_mobile_lcdcfb.h
+++ b/drivers/video/sh_mobile_lcdcfb.h
@@ -23,7 +23,7 @@ struct sh_mobile_lcdc_chan;
struct sh_mobile_lcdc_entity_ops {
/* Display */
- void (*display_on)(struct sh_mobile_lcdc_entity *entity);
+ bool (*display_on)(struct sh_mobile_lcdc_entity *entity);
void (*display_off)(struct sh_mobile_lcdc_entity *entity);
};
--
1.7.3.4
--
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