[PATCH 11/13] drm/bridge: dw-hdmi: Export dw_hdmi_schedule_hpd_work() helper

[Jonas Karlman <jonas@kwiboo.se>]

Export a dw_hdmi_schedule_hpd_work() helper that schedule the HPD
delayed work. Primarily to be used by the meson dw-hdmi driver.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 11 +++++++++--
 include/drm/bridge/dw_hdmi.h              |  2 ++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 99dd62b6becf..54d75317ce9c 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -3014,8 +3014,7 @@ static irqreturn_t dw_hdmi_hardirq(int irq, void *dev_id)
 			status == connector_status_connected ?
 			"plugin" : "plugout");
 
-		mod_delayed_work(system_percpu_wq, &hdmi->hpd_work,
-				 msecs_to_jiffies(HOTPLUG_DEBOUNCE_MS));
+		dw_hdmi_schedule_hpd_work(hdmi);
 
 		hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0);
 		hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0);
@@ -3025,6 +3024,14 @@ static irqreturn_t dw_hdmi_hardirq(int irq, void *dev_id)
 	return ret;
 }
 
+void dw_hdmi_schedule_hpd_work(struct dw_hdmi *hdmi)
+{
+	if (!IS_ERR_OR_NULL(hdmi))
+		mod_delayed_work(system_percpu_wq, &hdmi->hpd_work,
+				 msecs_to_jiffies(HOTPLUG_DEBOUNCE_MS));
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_schedule_hpd_work);
+
 static void dw_hdmi_hpd_work(struct work_struct *work)
 {
 	struct dw_hdmi *hdmi = container_of(work, struct dw_hdmi, hpd_work.work);
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 10013b8d3adb..c56d1775f04a 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -184,6 +184,8 @@ struct dw_hdmi *dw_hdmi_bind(struct platform_device *pdev,
 
 void dw_hdmi_resume(struct dw_hdmi *hdmi);
 
+void dw_hdmi_schedule_hpd_work(struct dw_hdmi *hdmi);
+
 int dw_hdmi_set_plugged_cb(struct dw_hdmi *hdmi, hdmi_codec_plugged_cb fn,
 			   struct device *codec_dev);
 void dw_hdmi_set_sample_non_pcm(struct dw_hdmi *hdmi, unsigned int non_pcm);
-- 
2.54.0