From ad265f50eb4621de76a13be7d520ea9a1689a417 Mon Sep 17 00:00:00 2001 From: Dongwoo Lee Date: Mon, 23 Oct 2017 09:47:19 +0900 Subject: [PATCH] gpu: drm: exynos: Notify the plugged state while probing Since commit 38b49e08, hdmi driver can notify the connection state via extcon framework. However, if hdmi cable is already connected before the system boot, there is no interrupt for hdmi connection, and thus it cannot be informed to userspace. To prevent the situation that cable is connected, but uninformed in userspace, this patch makes hdmi driver check the plugged state and notifies it explicitly at probing. Change-Id: I432f30df4effef27c7f393a4659c02cc035d5e6d Signed-off-by: Dongwoo Lee --- drivers/gpu/drm/exynos/exynos_hdmi.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 06f8d9efbfaf..d0759fae10e9 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -1988,6 +1988,7 @@ static int hdmi_extcon_init(struct hdmi_context *hdata) { struct device *dev = hdata->dev; struct extcon_dev *edev; + enum drm_connector_status plug; int ret; edev = devm_extcon_dev_allocate(dev, extcon_cable_list); @@ -2000,6 +2001,11 @@ static int hdmi_extcon_init(struct hdmi_context *hdata) hdata->edev = edev; + /* Notify the plugged state when hdmi is already connected */ + plug = hdmi_detect(&hdata->connector, false); + if (plug == connector_status_connected) + extcon_set_cable_state(edev, "HDMI", 1); + return 0; } -- 2.34.1