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fbdev: sh_mobile_lcdc: Return display connection state in display_on 

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@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2011-11-28 23:19:59 +01:00
parent 5864ace19a
commit 458981c388
4 changed files with 16 additions and 6 deletions
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2
drivers/video/sh_mipi_dsi.c
View File

@ -412,7 +412,7 @@ static int mipi_display_on(struct sh_mobile_lcdc_entity *entity)
sh_mipi_dsi_enable(mipi, true);
return 0;
return SH_MOBILE_LCDC_DISPLAY_CONNECTED;
mipi_display_on_fail1:
pm_runtime_put_sync(&mipi->pdev->dev);

9
drivers/video/sh_mobile_hdmi.c
View File

@ -1004,9 +1004,9 @@ static int 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
@ -1021,12 +1021,13 @@ static int 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 0;
return hdmi->hp_state == HDMI_HOTPLUG_DISCONNECTED
? SH_MOBILE_LCDC_DISPLAY_DISCONNECTED
: SH_MOBILE_LCDC_DISPLAY_CONNECTED;
}
static void sh_hdmi_display_off(struct sh_mobile_lcdc_entity *entity)

8
drivers/video/sh_mobile_lcdcfb.c
View File

@ -338,8 +338,14 @@ static void sh_mobile_lcdc_display_on(struct sh_mobile_lcdc_chan *ch)
struct sh_mobile_lcdc_panel_cfg *panel = &ch->cfg.panel_cfg;
if (ch->tx_dev) {
if (ch->tx_dev->ops->display_on(ch->tx_dev) < 0)
int ret;
ret = ch->tx_dev->ops->display_on(ch->tx_dev);
if (ret < 0)
return;
if (ret == SH_MOBILE_LCDC_DISPLAY_DISCONNECTED)
ch->info->state = FBINFO_STATE_SUSPENDED;
}
/* HDMI must be enabled before LCDC configuration */

3
drivers/video/sh_mobile_lcdcfb.h
View File

@ -21,6 +21,9 @@ struct sh_mobile_lcdc_entity;
struct sh_mobile_lcdc_priv;
struct sh_mobile_lcdc_chan;
#define SH_MOBILE_LCDC_DISPLAY_DISCONNECTED 0
#define SH_MOBILE_LCDC_DISPLAY_CONNECTED 1
struct sh_mobile_lcdc_entity_ops {
/* Display */
int (*display_on)(struct sh_mobile_lcdc_entity *entity);