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>
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 03ee382..5a19ef3 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -338,8 +338,14 @@
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 */